diff options
Diffstat (limited to 'nis')
| -rw-r--r-- | nis/nis_call.c | 32 | ||||
| -rw-r--r-- | nis/nis_error.c | 15 | ||||
| -rw-r--r-- | nis/nis_lookup.c | 19 | ||||
| -rw-r--r-- | nis/nis_table.c | 143 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-alias.c | 225 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-ethers.c | 210 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-grp.c | 194 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-hosts.c | 266 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-netgrp.c | 7 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-network.c | 243 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-proto.c | 245 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-publickey.c | 21 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-pwd.c | 239 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-rpc.c | 250 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-service.c | 259 | ||||
| -rw-r--r-- | nis/nss_nisplus/nisplus-spwd.c | 140 | ||||
| -rw-r--r-- | nis/ypclnt.c | 281 |
17 files changed, 1486 insertions, 1303 deletions
diff --git a/nis/nis_call.c b/nis/nis_call.c index 14041a160c..5b432b7981 100644 --- a/nis/nis_call.c +++ b/nis/nis_call.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2001, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2001, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -40,25 +40,16 @@ extern u_short __pmap_getnisport (struct sockaddr_in *address, u_long program, unsigned long inetstr2int (const char *str) { - char buffer[strlen (str) + 3]; - size_t buflen; - size_t i, j; - - buflen = stpcpy (buffer, str) - buffer; - - j = 0; - for (i = 0; i < buflen; ++i) - if (buffer[i] == '.') + size_t j = 0; + for (size_t i = 0; str[i] != '\0'; ++i) + if (str[i] == '.' && ++j == 4) { - ++j; - if (j == 4) - { - buffer[i] = '\0'; - break; - } + char buffer[i + 1]; + buffer[i] = '\0'; + return inet_addr (memcpy (buffer, str, i)); } - return inet_addr (buffer); + return inet_addr (str); } void @@ -179,7 +170,6 @@ __nisbind_connect (dir_binding *dbp) } else dbp->clnt->cl_auth = authunix_create_default (); - dbp->use_auth = TRUE; } return NIS_SUCCESS; @@ -215,10 +205,7 @@ __nisbind_create (dir_binding *dbp, const nis_server *serv_val, dbp->class = -1; if (__nis_findfastest (dbp) < 1) - { - __nisbind_destroy (dbp); - return NIS_NAMEUNREACHABLE; - } + return NIS_NAMEUNREACHABLE; return NIS_SUCCESS; } @@ -585,7 +572,6 @@ __do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs, if (__nisbind_next (&bptr) != NIS_SUCCESS) { nis_free_directory (dir); - __nisbind_destroy (&bptr); return NIS_NAMEUNREACHABLE; } } diff --git a/nis/nis_error.c b/nis/nis_error.c index 147f88ce15..7db885ef93 100644 --- a/nis/nis_error.c +++ b/nis/nis_error.c @@ -1,4 +1,4 @@ -/* Copyright (c) 1997, 1998, 1999, 2004 Free Software Foundation, Inc. +/* Copyright (c) 1997, 1998, 1999, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -102,26 +102,21 @@ char * nis_sperror_r (const nis_error status, const char *label, char *buffer, size_t buflen) { - const char *cptr; - - cptr = nis_sperrno (status); - - if ((strlen (cptr) + strlen (label) + 3) > buflen) + if (snprintf (buffer, buflen, "%s: %s", label, nis_sperrno (status)) + >= buflen) { errno = ERANGE; return NULL; } - sprintf (buffer, "%s: %s", label, cptr); - - return buffer; + return buffer; } libnsl_hidden_def (nis_sperror_r) char * nis_sperror (const nis_error status, const char *label) { - static char buffer[NIS_MAXNAMELEN +1]; + static char buffer[NIS_MAXNAMELEN + 1]; return nis_sperror_r (status, label, buffer, sizeof (buffer)); } diff --git a/nis/nis_lookup.c b/nis/nis_lookup.c index 0b97e67a61..4cb34dd1a8 100644 --- a/nis/nis_lookup.c +++ b/nis/nis_lookup.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 1999, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 1999, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 1997. @@ -81,7 +81,6 @@ nis_lookup (const_nis_name name, const unsigned int flags) { if (__nisbind_next (&bptr) != NIS_SUCCESS) { - __nisbind_destroy (&bptr); nis_free_directory (dir); NIS_RES_STATUS (res) = NIS_NAMEUNREACHABLE; return res; @@ -90,7 +89,7 @@ nis_lookup (const_nis_name name, const unsigned int flags) do { - static struct timeval RPCTIMEOUT = {10, 0}; + static const struct timeval RPCTIMEOUT = {10, 0}; enum clnt_stat result; again: @@ -107,8 +106,8 @@ nis_lookup (const_nis_name name, const unsigned int flags) if (NIS_RES_STATUS (res) == NIS_SUCCESS) { - if (__type_of(NIS_RES_OBJECT (res)) == NIS_LINK_OBJ && - flags & FOLLOW_LINKS) /* We are following links */ + if (__type_of(NIS_RES_OBJECT (res)) == NIS_LINK_OBJ + && (flags & FOLLOW_LINKS)) /* We are following links */ { if (count_links) free (req.ns_name); @@ -137,16 +136,17 @@ nis_lookup (const_nis_name name, const unsigned int flags) } } else - if ((NIS_RES_STATUS (res) == NIS_SYSTEMERROR) || - (NIS_RES_STATUS (res) == NIS_NOSUCHNAME) || - (NIS_RES_STATUS (res) == NIS_NOT_ME)) + if (NIS_RES_STATUS (res) == NIS_SYSTEMERROR + || NIS_RES_STATUS (res) == NIS_NOSUCHNAME + || NIS_RES_STATUS (res) == NIS_NOT_ME) { if (link_first_try) { __nisbind_destroy (&bptr); nis_free_directory (dir); - if (__nisfind_server (req.ns_name, &dir) != NIS_SUCCESS) + if (__nisfind_server (req.ns_name, &dir) + != NIS_SUCCESS) return res; if (__nisbind_create (&bptr, @@ -166,7 +166,6 @@ nis_lookup (const_nis_name name, const unsigned int flags) { if (__nisbind_next (&bptr) != NIS_SUCCESS) { - __nisbind_destroy (&bptr); nis_free_directory (dir); return res; } diff --git a/nis/nis_table.c b/nis/nis_table.c index 2531a3fbc5..2ef28ac59b 100644 --- a/nis/nis_table.c +++ b/nis/nis_table.c @@ -27,11 +27,9 @@ static struct ib_request * __create_ib_request (const_nis_name name, unsigned int flags) { - struct ib_request *ibreq = calloc (1, sizeof (ib_request)); - char buf[strlen (name) + 1]; + struct ib_request *ibreq = calloc (1, sizeof (struct ib_request)); nis_attr *search_val = NULL; size_t search_len = 0; - char *cptr; size_t size = 0; if (ibreq == NULL) @@ -39,7 +37,7 @@ __create_ib_request (const_nis_name name, unsigned int flags) ibreq->ibr_flags = flags; - cptr = strcpy (buf, name); + char *cptr = strdupa (name); /* Not of "[key=value,key=value,...],foo.." format? */ if (cptr[0] != '[') @@ -49,8 +47,8 @@ __create_ib_request (const_nis_name name, unsigned int flags) ibreq->ibr_name = strchr (cptr, ']'); if (ibreq->ibr_name == NULL || ibreq->ibr_name[1] != ',') { - ibreq->ibr_name = NULL; /* Or the xdr_* functions will dump */ - nis_free_request (ibreq); + /* The object has not really been built yet so we use free. */ + free (ibreq); return NULL; } @@ -120,17 +118,16 @@ __create_ib_request (const_nis_name name, unsigned int flags) return ibreq; } -static struct timeval RPCTIMEOUT = {10, 0}; +static const struct timeval RPCTIMEOUT = {10, 0}; static char * __get_tablepath (char *name, dir_binding *bptr) { enum clnt_stat result; - nis_result *res = calloc (1, sizeof (nis_result)); + nis_result res; struct ns_request req; - if (res == NULL) - return NULL; + memset (&res, '\0', sizeof (res)); req.ns_name = name; req.ns_object.ns_object_len = 0; @@ -138,20 +135,16 @@ __get_tablepath (char *name, dir_binding *bptr) result = clnt_call (bptr->clnt, NIS_LOOKUP, (xdrproc_t) _xdr_ns_request, (caddr_t) &req, (xdrproc_t) _xdr_nis_result, - (caddr_t) res, RPCTIMEOUT); + (caddr_t) &res, RPCTIMEOUT); - if (result == RPC_SUCCESS && NIS_RES_STATUS (res) == NIS_SUCCESS && - __type_of (NIS_RES_OBJECT (res)) == NIS_TABLE_OBJ) - { - char *cptr = strdup (NIS_RES_OBJECT (res)->TA_data.ta_path); - nis_freeresult (res); - return cptr; - } + const char *cptr; + if (result == RPC_SUCCESS && NIS_RES_STATUS (&res) == NIS_SUCCESS + && __type_of (NIS_RES_OBJECT (&res)) == NIS_TABLE_OBJ) + cptr = NIS_RES_OBJECT (&res)->TA_data.ta_path; else - { - nis_freeresult (res); - return strdup (""); - } + cptr = ""; + + return strdup (cptr); } nis_result * @@ -171,8 +164,8 @@ nis_list (const_nis_name name, unsigned int flags, nis_name namebuf[2] = {NULL, NULL}; int name_nr = 0; nis_cb *cb = NULL; - char *tableptr, *tablepath = NULL; - int have_tablepath = 0; + char *tableptr; + char *tablepath = NULL; int first_try = 0; /* Do we try the old binding at first ? */ if (res == NULL) @@ -205,6 +198,7 @@ nis_list (const_nis_name name, unsigned int flags, ibreq->ibr_name = strdup (names[name_nr]); if (ibreq->ibr_name == NULL) { + nis_freenames (names); nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NOMEMORY; return res; @@ -227,30 +221,24 @@ nis_list (const_nis_name name, unsigned int flags, status = __nisfind_server (ibreq->ibr_name, &dir); if (status != NIS_SUCCESS) - { - nis_free_request (ibreq); + { NIS_RES_STATUS (res) = status; - return res; - } + goto fail3; + } status = __nisbind_create (&bptr, dir->do_servers.do_servers_val, - dir->do_servers.do_servers_len, flags); + dir->do_servers.do_servers_len, flags); if (status != NIS_SUCCESS) { - nis_free_request (ibreq); NIS_RES_STATUS (res) = status; - nis_free_directory (dir); - return res; + goto fail2; } while (__nisbind_connect (&bptr) != NIS_SUCCESS) if (__nisbind_next (&bptr) != NIS_SUCCESS) { - __nisbind_destroy (&bptr); - nis_free_directory (dir); - nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NAMEUNREACHABLE; - return res; + goto fail; } if (callback != NULL) @@ -274,8 +262,8 @@ nis_list (const_nis_name name, unsigned int flags, case NIS_PARTIAL: case NIS_SUCCESS: case NIS_S_SUCCESS: - if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ && - flags & FOLLOW_LINKS) /* We are following links. */ + if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ + && (flags & FOLLOW_LINKS)) /* We are following links. */ { free (ibreq->ibr_name); ibreq->ibr_name = NULL; @@ -291,8 +279,22 @@ nis_list (const_nis_name name, unsigned int flags, strdup (NIS_RES_OBJECT (res)->LI_data.li_name); if (ibreq->ibr_name == NULL) { - nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NOMEMORY; + fail: + __nisbind_destroy (&bptr); + fail2: + nis_free_directory (dir); + fail3: + free (tablepath); + if (cb) + { + __nis_destroy_callback (cb); + ibreq->ibr_cbhost.ibr_cbhost_len = 0; + ibreq->ibr_cbhost.ibr_cbhost_val = NULL; + } + if (names != namebuf) + nis_freenames (names); + nis_free_request (ibreq); return res; } if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len) @@ -303,27 +305,30 @@ nis_list (const_nis_name name, unsigned int flags, ibreq->ibr_srch.ibr_srch_val = NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_val; } + /* The following is a non-obvious optimization. A + nis_freeresult call would call xdr_free as the + following code. But it also would unnecessarily + free the result structure. We avoid this here + along with the necessary tests. */ +#if 1 + xdr_free ((xdrproc_t) _xdr_nis_result, (char *)res); + memset (res, '\0', sizeof (*res)); +#else nis_freeresult (res); res = calloc (1, sizeof (nis_result)); if (res == NULL) - { - if (have_tablepath) - free (tablepath); - __nisbind_destroy (&bptr); - nis_free_directory (dir); - return NULL; - } + goto fail; +#endif first_try = 1; /* Try at first the old binding */ goto again; } - else if ((flags & FOLLOW_PATH) && - NIS_RES_STATUS (res) == NIS_PARTIAL) + else if ((flags & FOLLOW_PATH) + && NIS_RES_STATUS (res) == NIS_PARTIAL) { - if (!have_tablepath) + if (tablepath == NULL) { tablepath = __get_tablepath (ibreq->ibr_name, &bptr); tableptr = tablepath; - have_tablepath = 1; } if (tableptr == NULL) { @@ -337,27 +342,37 @@ nis_list (const_nis_name name, unsigned int flags, ibreq->ibr_name = strdup (""); if (ibreq->ibr_name == NULL) { - nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; + goto fail; } ++done; } else { ibreq->ibr_name = strdup (ibreq->ibr_name); + /* The following is a non-obvious optimization. A + nis_freeresult call would call xdr_free as the + following code. But it also would unnecessarily + free the result structure. We avoid this here + along with the necessary tests. */ +#if 1 + xdr_free ((xdrproc_t) _xdr_nis_result, (char *)res); + memset (res, '\0', sizeof (*res)); + if (ibreq->ibr_name == NULL) + { + NIS_RES_STATUS (res) = NIS_NOMEMORY; + goto fail; + } +#else nis_freeresult (res); res = calloc (1, sizeof (nis_result)); if (res == NULL || ibreq->ibr_name == NULL) { free (res); - nis_free_request (ibreq); - if (have_tablepath) - free (tablepath); - __nisbind_destroy (&bptr); - nis_free_directory (dir); - return NULL; + res = NULL; + goto fail; } +#endif first_try = 1; goto again; } @@ -375,11 +390,10 @@ nis_list (const_nis_name name, unsigned int flags, ++done; else { - if (!have_tablepath) + if (tablepath == NULL) { tablepath = __get_tablepath (ibreq->ibr_name, &bptr); tableptr = tablepath; - have_tablepath = 1; } if (tableptr == NULL) { @@ -397,9 +411,8 @@ nis_list (const_nis_name name, unsigned int flags, ibreq->ibr_name = strdup (ibreq->ibr_name); if (ibreq->ibr_name == NULL) { - nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; + goto fail; } } } @@ -448,9 +461,8 @@ nis_list (const_nis_name name, unsigned int flags, ibreq->ibr_name = strdup (names[name_nr]); if (ibreq->ibr_name == NULL) { - nis_free_request (ibreq); NIS_RES_STATUS (res) = NIS_NOMEMORY; - return res; + goto fail; } first_try = 1; /* Try old binding at first */ goto again; @@ -464,12 +476,15 @@ nis_list (const_nis_name name, unsigned int flags, __nis_destroy_callback (cb); ibreq->ibr_cbhost.ibr_cbhost_len = 0; ibreq->ibr_cbhost.ibr_cbhost_val = NULL; + cb = NULL; } __nisbind_destroy (&bptr); nis_free_directory (dir); } + free (tablepath); + if (names != namebuf) nis_freenames (names); diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c index 152e5fc3fc..6aa93ab3bc 100644 --- a/nis/nss_nisplus/nisplus-alias.c +++ b/nis/nss_nisplus/nisplus-alias.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,6 +17,7 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <atomic.h> #include <nss.h> #include <errno.h> #include <ctype.h> @@ -32,7 +33,7 @@ __libc_lock_define_initialized (static, lock) static nis_result *result; static u_long next_entry; static nis_name tablename_val; -static u_long tablename_len; +static size_t tablename_len; #define NISENTRYVAL(idx,col,res) \ ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val) @@ -45,19 +46,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "mail_aliases.org_dir."; - p = __stpcpy (buf, "mail_aliases.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -75,81 +83,73 @@ _nss_nisplus_parse_aliasent (nis_result *result, unsigned long entry, "mail_aliases") != 0 || result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 2) return 0; - else + + char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1; + size_t room_left = (buflen - (buflen % __alignof__ (char *)) + - NISENTRYLEN (0, 1, result) - 2); + + if (NISENTRYLEN (entry, 1, result) >= buflen) { - char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1; - size_t room_left = - buflen - (buflen % __alignof__ (char *)) - - NISENTRYLEN (0, 1, result) - 2; - char *line; - char *cp; - - if (NISENTRYLEN (entry, 1, result) >= buflen) - { - /* The line is too long for our buffer. */ - no_more_room: - *errnop = ERANGE; - return -1; - } - else - { - cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result), - NISENTRYLEN (entry, 1, result)); - *cp = '\0'; - } + /* The line is too long for our buffer. */ + no_more_room: + *errnop = ERANGE; + return -1; + } + + char *cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result), + NISENTRYLEN (entry, 1, result)); + *cp = '\0'; + + if (NISENTRYLEN(entry, 0, result) >= room_left) + goto no_more_room; + + alias->alias_local = 0; + alias->alias_members_len = 0; + *first_unused = '\0'; + ++first_unused; + cp = __stpncpy (first_unused, NISENTRYVAL (entry, 0, result), + NISENTRYLEN (entry, 0, result)); + *cp = '\0'; + alias->alias_name = first_unused; + + /* Terminate the line for any case. */ + cp = strpbrk (alias->alias_name, "#\n"); + if (cp != NULL) + *cp = '\0'; + + first_unused += strlen (alias->alias_name) +1; + /* Adjust the pointer so it is aligned for + storing pointers. */ + first_unused += __alignof__ (char *) - 1; + first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); + alias->alias_members = (char **) first_unused; + + char *line = buffer; + while (*line != '\0') + { + /* Skip leading blanks. */ + while (isspace (*line)) + ++line; + + if (*line == '\0') + break; - if (NISENTRYLEN(entry, 0, result) >= room_left) + if (room_left < sizeof (char *)) goto no_more_room; + room_left -= sizeof (char *); + alias->alias_members[alias->alias_members_len] = line; + + while (*line != '\0' && *line != ',') + ++line; - alias->alias_local = 0; - alias->alias_members_len = 0; - *first_unused = '\0'; - ++first_unused; - cp = __stpncpy (first_unused, NISENTRYVAL (entry, 0, result), - NISENTRYLEN (entry, 0, result)); - *cp = '\0'; - alias->alias_name = first_unused; - - /* Terminate the line for any case. */ - cp = strpbrk (alias->alias_name, "#\n"); - if (cp != NULL) - *cp = '\0'; - - first_unused += strlen (alias->alias_name) +1; - /* Adjust the pointer so it is aligned for - storing pointers. */ - first_unused += __alignof__ (char *) - 1; - first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *)); - alias->alias_members = (char **) first_unused; - - line = buffer; - - while (*line != '\0') + if (line != alias->alias_members[alias->alias_members_len]) { - /* Skip leading blanks. */ - while (isspace (*line)) - ++line; - - if (*line == '\0') - break; - - if (room_left < sizeof (char *)) - goto no_more_room; - room_left -= sizeof (char *); - alias->alias_members[alias->alias_members_len] = line; - - while (*line != '\0' && *line != ',') - ++line; - - if (line != alias->alias_members[alias->alias_members_len]) - { - *line++ = '\0'; - alias->alias_members_len++; - } + *line++ = '\0'; + alias->alias_members_len++; } - - return alias->alias_members_len == 0 ? 0 : 1; } + + return alias->alias_members_len == 0 ? 0 : 1; } static enum nss_status @@ -158,9 +158,11 @@ internal_setaliasent (void) enum nss_status status; int err; - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) return NSS_STATUS_UNAVAIL; @@ -203,9 +205,11 @@ _nss_nisplus_endaliasent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } next_entry = 0; __libc_lock_unlock (lock); @@ -240,7 +244,8 @@ internal_nisplus_getaliasent_r (struct aliasent *alias, return NSS_STATUS_TRYAGAIN; ++next_entry; - } while (!parse_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -268,7 +273,12 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -278,35 +288,34 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - nis_result *result; - char buf[strlen (name) + 30 + tablename_len]; - int olderr = errno; - sprintf (buf, "[name=%s],%s", name, tablename_val); + char buf[strlen (name) + 9 + tablename_len]; + int olderr = errno; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - return niserr2nss (result->status); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - parse_res = _nss_nisplus_parse_aliasent (result, 0, alias, - buffer, buflen, errnop); - if (parse_res < 1) - { - __set_errno (olderr); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - if (parse_res == -1) - return NSS_STATUS_TRYAGAIN; - else - return NSS_STATUS_NOTFOUND; - } - return NSS_STATUS_SUCCESS; + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + return niserr2nss (result->status); + + parse_res = _nss_nisplus_parse_aliasent (result, 0, alias, + buffer, buflen, errnop); + if (__builtin_expect (parse_res < 1, 0)) + { + __set_errno (olderr); + + if (parse_res == -1) + return NSS_STATUS_TRYAGAIN; + else + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-ethers.c b/nis/nss_nisplus/nisplus-ethers.c index 028309c841..fcc550e743 100644 --- a/nis/nss_nisplus/nisplus-ethers.c +++ b/nis/nss_nisplus/nisplus-ethers.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,2000,2001,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2000-2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -17,15 +17,17 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> -#include <string.h> -#include <bits/libc-lock.h> +#include <errno.h> +#include <inttypes.h> #include <netdb.h> +#include <nss.h> +#include <string.h> #include <netinet/ether.h> -#include <rpcsvc/nis.h> #include <netinet/if_ether.h> +#include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -70,7 +72,14 @@ _nss_nisplus_parse_etherent (nis_result *result, struct etherent *ether, room_left -= (NISENTRYLEN (0, 0, result) +1); ether->e_name = p; - ether->e_addr = *ether_aton (NISENTRYVAL (0, 1, result)); + struct ether_addr *ea = ether_aton (NISENTRYVAL (0, 1, result)); + if (ea == NULL) + { + *errnop = EINVAL; + return -2; + } + + ether->e_addr = *ea; return 1; } @@ -80,18 +89,24 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "ethers.org_dir."; - p = __stpcpy (buf, "ethers.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } return NSS_STATUS_SUCCESS; } @@ -107,9 +122,11 @@ _nss_nisplus_setetherent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) status = NSS_STATUS_UNAVAIL; @@ -124,9 +141,11 @@ _nss_nisplus_endetherent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -137,8 +156,6 @@ static enum nss_status internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, size_t buflen, int *errnop) { - int parse_res; - if (tablename_val == NULL) { enum nss_status status = _nss_create_tablename (errnop); @@ -148,6 +165,7 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, } /* Get the next entry until we found a correct one. */ + int parse_res; do { nis_result *saved_result; @@ -161,11 +179,8 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, } else { - nis_result *res2; - - res2 = nis_next_entry(tablename_val, &result->cookie); saved_result = result; - result = res2; + result = nis_next_entry (tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { nis_freeresult (saved_result); @@ -178,17 +193,15 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer, if (parse_res == -1) { nis_freeresult (result); - *errnop = ERANGE; result = saved_result; return NSS_STATUS_TRYAGAIN; } - else - { - if (saved_result != NULL) - nis_freeresult (saved_result); - } - } while (!parse_res); + if (saved_result != NULL) + nis_freeresult (saved_result); + + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -212,8 +225,6 @@ enum nss_status _nss_nisplus_gethostton_r (const char *name, struct etherent *eth, char *buffer, size_t buflen, int *errnop) { - int parse_res; - if (tablename_val == NULL) { enum nss_status status = _nss_create_tablename (errnop); @@ -227,56 +238,57 @@ _nss_nisplus_gethostton_r (const char *name, struct etherent *eth, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - nis_result *result; - char buf[strlen (name) + 40 + tablename_len]; - int olderr = errno; - sprintf (buf, "[name=%s],%s", name, tablename_val); + char buf[strlen (name) + 9 + tablename_len]; + int olderr = errno; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } + + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + nis_freeresult (result); + return status; + } + + int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, buflen, errnop); - if (parse_res < 1) - { - __set_errno (olderr); + if (__builtin_expect (parse_res < 1, 0)) + { + __set_errno (olderr); - if (parse_res == -1) - { - nis_freeresult (result); - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - return NSS_STATUS_NOTFOUND; + if (parse_res == -1) + { + nis_freeresult (result); + return NSS_STATUS_TRYAGAIN; } - return NSS_STATUS_SUCCESS; + else + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } enum nss_status -_nss_nisplus_getntohost_r (const struct ether_addr *addr, - struct etherent *eth, +_nss_nisplus_getntohost_r (const struct ether_addr *addr, struct etherent *eth, char *buffer, size_t buflen, int *errnop) { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -286,44 +298,44 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - int parse_res; - nis_result *result; - char buf[255 + tablename_len]; - sprintf (buf, "[addr=%x:%x:%x:%x:%x:%x],ethers.org_dir", - addr->ether_addr_octet[0], addr->ether_addr_octet[1], - addr->ether_addr_octet[2], addr->ether_addr_octet[3], - addr->ether_addr_octet[4], addr->ether_addr_octet[5]); + char buf[26 + tablename_len]; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), + "[addr=%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 + ":%" PRIx8 "],%s", + addr->ether_addr_octet[0], addr->ether_addr_octet[1], + addr->ether_addr_octet[2], addr->ether_addr_octet[3], + addr->ether_addr_octet[4], addr->ether_addr_octet[5], + tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } + + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + nis_freeresult (result); + return status; + } + + int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer, buflen, errnop); - if (parse_res < 1) + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - if (parse_res == -1) - { - nis_freeresult (result); - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - return NSS_STATUS_NOTFOUND; + nis_freeresult (result); + return NSS_STATUS_TRYAGAIN; } - return NSS_STATUS_SUCCESS; + + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-grp.c b/nis/nss_nisplus/nisplus-grp.c index daca94fc87..423f7e7291 100644 --- a/nis/nss_nisplus/nisplus-grp.c +++ b/nis/nss_nisplus/nisplus-grp.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997, 2001, 2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,6 +17,7 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <atomic.h> #include <nss.h> #include <grp.h> #include <ctype.h> @@ -28,31 +29,39 @@ #include "nss-nisplus.h" #include "nisplus-parser.h" + __libc_lock_define_initialized (static, lock); static nis_result *result; static unsigned long next_entry; static nis_name tablename_val; -static u_long tablename_len; +static size_t tablename_len; static enum nss_status _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "group.org_dir."; - p = __stpcpy (buf, "group.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -60,16 +69,20 @@ static enum nss_status internal_setgrent (void) { enum nss_status status; - int err; - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } next_entry = 0; if (tablename_val == NULL) - if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) - return NSS_STATUS_UNAVAIL; + { + int err; + if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS) + return NSS_STATUS_UNAVAIL; + } result = nis_list (tablename_val, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); if (result == NULL) @@ -108,9 +121,11 @@ _nss_nisplus_endgrent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -173,8 +188,12 @@ _nss_nisplus_getgrnam_r (const char *name, struct group *gr, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -184,47 +203,46 @@ _nss_nisplus_getgrnam_r (const char *name, struct group *gr, *errnop = EINVAL; return NSS_STATUS_NOTFOUND; } - else + + nis_result *result; + char buf[strlen (name) + 9 + tablename_len]; + int olderr = errno; + + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + + result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + + if (result == NULL) { - nis_result *result; - char buf[strlen (name) + 24 + tablename_len]; - int olderr = errno; + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - sprintf (buf, "[name=%s],%s", name, tablename_val); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + nis_freeresult (result); + return status; + } - if (result == NULL) + parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen, errnop); + nis_freeresult (result); + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - *errnop = ENOMEM; + *errnop = ERANGE; return NSS_STATUS_TRYAGAIN; } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - - nis_freeresult (result); - return status; - } - - parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen, - errnop); - nis_freeresult (result); - if (parse_res < 1) + else { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } enum nss_status @@ -233,53 +251,57 @@ _nss_nisplus_getgrgid_r (const gid_t gid, struct group *gr, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } - { - int parse_res; - nis_result *result; - char buf[36 + tablename_len]; - int olderr = errno; + int parse_res; + nis_result *result; + char buf[8 + 3 * sizeof (unsigned long int) + tablename_len]; + int olderr = errno; - sprintf (buf, "[gid=%lu],%s", (unsigned long int) gid, tablename_val); + snprintf (buf, sizeof (buf), "[gid=%lu],%s", + (unsigned long int) gid, tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - __set_errno (olderr); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } - - parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen, - errnop); - - nis_freeresult (result); - if (parse_res < 1) - { - __set_errno (olderr); - - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - return NSS_STATUS_NOTFOUND; - } - return NSS_STATUS_SUCCESS; - } + __set_errno (olderr); + + nis_freeresult (result); + return status; + } + + parse_res = _nss_nisplus_parse_grent (result, 0, gr, buffer, buflen, errnop); + + nis_freeresult (result); + if (__builtin_expect (parse_res < 1, 0)) + { + __set_errno (olderr); + + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + return NSS_STATUS_NOTFOUND; + } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-hosts.c b/nis/nss_nisplus/nisplus-hosts.c index 540469894e..81f8a984dc 100644 --- a/nis/nss_nisplus/nisplus-hosts.c +++ b/nis/nss_nisplus/nisplus-hosts.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997-2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -17,15 +17,16 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <netdb.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> +#include <netdb.h> +#include <nss.h> #include <string.h> -#include <netinet/in.h> #include <arpa/inet.h> -#include <bits/libc-lock.h> +#include <netinet/in.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -180,19 +181,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "hosts.org_dir."; - p = __stpcpy (buf, "hosts.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -204,9 +212,11 @@ _nss_nisplus_sethostent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) status = _nss_create_tablename (&err); @@ -221,9 +231,11 @@ _nss_nisplus_endhostent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -335,8 +347,12 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) { *herrnop = NETDB_INTERNAL; @@ -350,75 +366,81 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host, *herrnop = NETDB_INTERNAL; return NSS_STATUS_NOTFOUND; } - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + nis_result *result; + char buf[strlen (name) + 10 + tablename_len]; + int olderr = errno; - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS - && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, - "hosts_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],%s", name, tablename_val); - else - sprintf (buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result), - tablename_val); - - nis_freeresult (result); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search. */ + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) + if (result != NULL) + { + char *bufptr = buf; + + /* If we did not find it, try it as original name. But if the + database is correct, we should find it in the first case, too. */ + if ((result->status != NIS_SUCCESS + && result->status != NIS_S_SUCCESS) + || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ + || strcmp (result->objects.objects_val->EN_data.en_type, + "hosts_tbl") != 0 + || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val); + else { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; + /* We need to allocate a new buffer since there is no + guarantee the returned name has a length limit. */ + const char *entryval = NISENTRYVAL(0, 0, result); + size_t buflen = strlen (entryval) + 10 + tablename_len; + bufptr = alloca (buflen); + snprintf (bufptr, buflen, "[cname=%s],%s", + entryval, tablename_val); } - retval = niserr2nss (result->status); - if (retval != NSS_STATUS_SUCCESS) - { - if (retval == NSS_STATUS_TRYAGAIN) - { - *errnop = errno; - *herrnop = NETDB_INTERNAL; - } - else - __set_errno (olderr); - nis_freeresult (result); - return retval; - } - - parse_res = _nss_nisplus_parse_hostent (result, af, host, buffer, - buflen, errnop, flags); nis_freeresult (result); + result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + } - if (parse_res > 0) - return NSS_STATUS_SUCCESS; + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - *herrnop = NETDB_INTERNAL; - if (parse_res == -1) + retval = niserr2nss (result->status); + if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0)) + { + if (retval == NSS_STATUS_TRYAGAIN) { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; + *errnop = errno; + *herrnop = NETDB_INTERNAL; } else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + __set_errno (olderr); + nis_freeresult (result); + return retval; } + + parse_res = _nss_nisplus_parse_hostent (result, af, host, buffer, + buflen, errnop, flags); + + nis_freeresult (result); + + if (parse_res > 0) + return NSS_STATUS_SUCCESS; + + *herrnop = NETDB_INTERNAL; + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } enum nss_status @@ -431,17 +453,6 @@ _nss_nisplus_gethostbyname2_r (const char *name, int af, struct hostent *host, ((_res.options & RES_USE_INET6) ? AI_V4MAPPED : 0)); } -#if 0 -enum nss_status -_nss_nisplus_getipnodebyname_r (const char *name, int af, int flags, - struct hostent *result, char *buffer, - size_t buflen, int *errnop, int *herrnop) -{ - return internal_gethostbyname2_r (name, af, result, buffer, buflen, - errnop, herrnop, flags); -} -#endif - enum nss_status _nss_nisplus_gethostbyname_r (const char *name, struct hostent *host, char *buffer, size_t buflen, int *errnop, @@ -469,62 +480,63 @@ _nss_nisplus_gethostbyaddr_r (const void *addr, socklen_t addrlen, int af, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } if (addr == NULL) return NSS_STATUS_NOTFOUND; - else - { - nis_result *result; - char buf[255 + tablename_len]; - int retval, parse_res; - int olderr = errno; - sprintf (buf, "[addr=%s],%s", - inet_ntoa (*(const struct in_addr *) addr), tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - - if (result == NULL) - { - __set_errno (ENOMEM); - return NSS_STATUS_TRYAGAIN; - } - retval = niserr2nss (result->status); - if (retval != NSS_STATUS_SUCCESS) - { - if (retval == NSS_STATUS_TRYAGAIN) - { - *errnop = errno; - *herrnop = NETDB_INTERNAL; - } - else - __set_errno (olderr); - nis_freeresult (result); - return retval; - } + char buf[24 + tablename_len]; + int retval, parse_res; + int olderr = errno; - parse_res = _nss_nisplus_parse_hostent (result, af, host, - buffer, buflen, errnop, - ((_res.options & RES_USE_INET6) ? AI_V4MAPPED : 0)); - nis_freeresult (result); + snprintf (buf, sizeof (buf), "[addr=%s],%s", + inet_ntoa (*(const struct in_addr *) addr), tablename_val); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (parse_res > 0) - return NSS_STATUS_SUCCESS; + if (result == NULL) + { + __set_errno (ENOMEM); + return NSS_STATUS_TRYAGAIN; + } - *herrnop = NETDB_INTERNAL; - if (parse_res == -1) + retval = niserr2nss (result->status); + if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0)) + { + if (retval == NSS_STATUS_TRYAGAIN) { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; + *errnop = errno; + *herrnop = NETDB_INTERNAL; } else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + __set_errno (olderr); + nis_freeresult (result); + return retval; + } + + parse_res = _nss_nisplus_parse_hostent (result, af, host, + buffer, buflen, errnop, + ((_res.options & RES_USE_INET6) + ? AI_V4MAPPED : 0)); + nis_freeresult (result); + + if (parse_res > 0) + return NSS_STATUS_SUCCESS; + + *herrnop = NETDB_INTERNAL; + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; } + + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } diff --git a/nis/nss_nisplus/nisplus-netgrp.c b/nis/nss_nisplus/nisplus-netgrp.c index 344d65f4c4..31a8cdf097 100644 --- a/nis/nss_nisplus/nisplus-netgrp.c +++ b/nis/nss_nisplus/nisplus-netgrp.c @@ -150,15 +150,14 @@ internal_endnetgrent (struct __netgrent *netgrp) enum nss_status _nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp) { - enum nss_status status; - char buf[strlen (group) + 30]; + char buf[strlen (group) + 25]; if (group == NULL || group[0] == '\0') return NSS_STATUS_UNAVAIL; - status = NSS_STATUS_SUCCESS; + enum nss_status status = NSS_STATUS_SUCCESS; - sprintf (buf, "[name=%s],netgroup.org_dir", group); + snprintf (buf, sizeof (buf), "[name=%s],netgroup.org_dir", group); netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL); diff --git a/nis/nss_nisplus/nisplus-network.c b/nis/nss_nisplus/nisplus-network.c index 422b02b82a..dc6b99e505 100644 --- a/nis/nss_nisplus/nisplus-network.c +++ b/nis/nss_nisplus/nisplus-network.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,2000,2001,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2000-2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,15 +17,16 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <netdb.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> +#include <netdb.h> +#include <nss.h> #include <stdint.h> #include <string.h> #include <arpa/inet.h> -#include <bits/libc-lock.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -44,12 +45,10 @@ static u_long tablename_len; static int _nss_nisplus_parse_netent (nis_result *result, struct netent *network, - char *buffer, size_t buflen, int *errnop) + char *buffer, size_t buflen, int *errnop) { char *first_unused = buffer; size_t room_left = buflen; - unsigned int i; - char *p, *line; if (result == NULL) return 0; @@ -61,7 +60,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network, || result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3) return 0; - if (NISENTRYLEN(0, 0, result) >= room_left) + if (NISENTRYLEN (0, 0, result) >= room_left) { /* The line is too long for our buffer. */ no_more_room: @@ -69,7 +68,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network, return -1; } - strncpy (first_unused, NISENTRYVAL(0, 0, result), + strncpy (first_unused, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result)); first_unused[NISENTRYLEN (0, 0, result)] = '\0'; network->n_name = first_unused; @@ -77,10 +76,10 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network, first_unused += strlen (first_unused) +1; network->n_addrtype = 0; network->n_net = inet_network (NISENTRYVAL (0, 2, result)); - p = first_unused; + char *p = first_unused; - line = p; - for (i = 0; i < result->objects.objects_len; ++i) + char *line = p; + for (unsigned int i = 0; i < result->objects.objects_len; ++i) { if (strcmp (NISENTRYVAL (i, 1, result), network->n_name) != 0) { @@ -107,12 +106,12 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network, room_left -= (2 * sizeof (char *)); network->n_aliases[0] = NULL; - i = 0; + unsigned int i = 0; while (*line != '\0') { /* Skip leading blanks. */ while (isspace (*line)) - line++; + ++line; if (*line == '\0') break; @@ -133,7 +132,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network, ++i; } else - network->n_aliases[i+1] = NULL; + network->n_aliases[i + 1] = NULL; } return 1; @@ -144,19 +143,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "networks.org_dir."; - p = __stpcpy (buf, "networks.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -164,16 +170,20 @@ enum nss_status _nss_nisplus_setnetent (int stayopen) { enum nss_status status = NSS_STATUS_SUCCESS; - int err; __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) - status = _nss_create_tablename (&err); + { + int err; + status = _nss_create_tablename (&err); + } __libc_lock_unlock (lock); @@ -185,9 +195,11 @@ _nss_nisplus_endnetent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -220,9 +232,7 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer, result = nis_first_entry (tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { - int retval; - - retval = niserr2nss (result->status); + int retval = niserr2nss (result->status); nis_freeresult (result); result = NULL; if (retval == NSS_STATUS_TRYAGAIN) @@ -237,16 +247,12 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer, } else { - nis_result *res; - - res = nis_next_entry (tablename_val, &result->cookie); + nis_result *res = nis_next_entry (tablename_val, &result->cookie); saved_res = result; result = res; if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { - int retval; - - retval = niserr2nss (result->status); + int retval = niserr2nss (result->status); nis_freeresult (result); result = saved_res; if (retval == NSS_STATUS_TRYAGAIN) @@ -266,7 +272,8 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer, return NSS_STATUS_TRYAGAIN; } - } while (!parse_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -296,8 +303,12 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -308,76 +319,82 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network, *herrnop = NETDB_INTERNAL; return NSS_STATUS_UNAVAIL; } - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + nis_result *result; + char buf[strlen (name) + 10 + tablename_len]; + int olderr = errno; - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS - && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val[0].EN_data.en_type, - "networks_tbl") != 0 - || (result->objects.objects_val[0].EN_data.en_cols.en_cols_len - < 3)) - sprintf (buf, "[cname=%s],%s", name, tablename_val); - else - sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result), - tablename_val); - - nis_freeresult (result); - result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search */ + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); - if (result == NULL) - { - __set_errno (ENOMEM); - return NSS_STATUS_TRYAGAIN; - } - retval = niserr2nss (result->status); - if (retval != NSS_STATUS_SUCCESS) + if (result != NULL) + { + char *bufptr = buf; + + /* If we do not find it, try it as original name. But if the + database is correct, we should find it in the first case, too */ + if ((result->status != NIS_SUCCESS + && result->status != NIS_S_SUCCESS) + || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ + || strcmp (result->objects.objects_val[0].EN_data.en_type, + "networks_tbl") != 0 + || (result->objects.objects_val[0].EN_data.en_cols.en_cols_len + < 3)) + snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val); + else { - if (retval == NSS_STATUS_TRYAGAIN) - { - *errnop = errno; - *herrnop = NETDB_INTERNAL; - } - else - __set_errno (olderr); - nis_freeresult (result); - return retval; + /* We need to allocate a new buffer since there is no + guarantee the returned name has a length limit. */ + const char *entryval = NISENTRYVAL (0, 0, result); + size_t buflen = strlen (entryval) + 10 + tablename_len; + bufptr = alloca (buflen); + snprintf (bufptr, buflen, "[cname=%s],%s", + entryval, tablename_val); } - parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen, - errnop); - nis_freeresult (result); + result = nis_list (bufptr, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + } - if (parse_res > 0) - return NSS_STATUS_SUCCESS; + if (result == NULL) + { + __set_errno (ENOMEM); + return NSS_STATUS_TRYAGAIN; + } - *herrnop = NETDB_INTERNAL; - if (parse_res == -1) + retval = niserr2nss (result->status); + if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0)) + { + if (retval == NSS_STATUS_TRYAGAIN) { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; + *errnop = errno; + *herrnop = NETDB_INTERNAL; } else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + __set_errno (olderr); + nis_freeresult (result); + return retval; + } + + parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen, + errnop); + + nis_freeresult (result); + + if (parse_res > 0) + return NSS_STATUS_SUCCESS; + + *herrnop = NETDB_INTERNAL; + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; } + + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } /* XXX type is ignored, SUN's NIS+ table doesn't support it */ @@ -388,39 +405,39 @@ _nss_nisplus_getnetbyaddr_r (uint32_t addr, const int type, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } { - int parse_res, retval; - nis_result *result; - char buf[1024 + tablename_len]; - struct in_addr in; - char buf2[256]; - int b2len; + char buf[27 + tablename_len]; + char buf2[18]; int olderr = errno; - in = inet_makeaddr (addr, 0); + struct in_addr in = inet_makeaddr (addr, 0); strcpy (buf2, inet_ntoa (in)); - b2len = strlen (buf2); + size_t b2len = strlen (buf2); while (1) { - sprintf (buf, "[addr=%s],%s", buf2, tablename_val); - result = nis_list (buf, EXPAND_NAME, NULL, NULL); + snprintf (buf, sizeof (buf), "[addr=%s],%s", buf2, tablename_val); + nis_result *result = nis_list (buf, EXPAND_NAME, NULL, NULL); if (result == NULL) { __set_errno (ENOMEM); return NSS_STATUS_TRYAGAIN; } - retval = niserr2nss (result->status); - if (retval != NSS_STATUS_SUCCESS) + enum nss_status retval = niserr2nss (result->status); + if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0)) { - if (buf2[b2len -2] == '.' && buf2[b2len -1] == '0') + if (b2len > 2 && buf2[b2len - 2] == '.' && buf2[b2len - 1] == '0') { /* Try again, but with trailing dot(s) removed (one by one) */ @@ -428,8 +445,6 @@ _nss_nisplus_getnetbyaddr_r (uint32_t addr, const int type, b2len -= 2; continue; } - else - return NSS_STATUS_NOTFOUND; if (retval == NSS_STATUS_TRYAGAIN) { @@ -442,8 +457,8 @@ _nss_nisplus_getnetbyaddr_r (uint32_t addr, const int type, return retval; } - parse_res = _nss_nisplus_parse_netent (result, network, buffer, - buflen, errnop); + int parse_res = _nss_nisplus_parse_netent (result, network, buffer, + buflen, errnop); nis_freeresult (result); diff --git a/nis/nss_nisplus/nisplus-proto.c b/nis/nss_nisplus/nisplus-proto.c index 83456cae64..585a4844ad 100644 --- a/nis/nss_nisplus/nisplus-proto.c +++ b/nis/nss_nisplus/nisplus-proto.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,13 +17,14 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> #include <netdb.h> +#include <nss.h> #include <string.h> -#include <bits/libc-lock.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -141,19 +142,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "protocols.org_dir."; - p = __stpcpy (buf, "protocols.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -164,9 +172,11 @@ _nss_nisplus_setprotoent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) { @@ -184,9 +194,11 @@ _nss_nisplus_endprotoent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -221,11 +233,8 @@ internal_nisplus_getprotoent_r (struct protoent *proto, char *buffer, } else { - nis_result *res; - saved_res = result; - res = nis_next_entry (tablename_val, &result->cookie); - result = res; + result = nis_next_entry (tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { @@ -277,79 +286,91 @@ _nss_nisplus_getprotobyname_r (const char *name, struct protoent *proto, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } if (name == NULL) return NSS_STATUS_NOTFOUND; - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS - && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, - "protocols_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],%s", name, tablename_val); - else - sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result), - tablename_val); + char buf[strlen (name) + 10 + tablename_len]; + int olderr = errno; - nis_freeresult (result); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search */ + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) + if (result != NULL) + { + char *bufptr = buf; + + /* If we did not find it, try it as original name. But if the + database is correct, we should find it in the first case, too */ + if ((result->status != NIS_SUCCESS + && result->status != NIS_S_SUCCESS) + || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ + || strcmp (result->objects.objects_val->EN_data.en_type, + "protocols_tbl") != 0 + || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val); + else { - __set_errno (ENOMEM); - return NSS_STATUS_TRYAGAIN; + /* We need to allocate a new buffer since there is no + guarantee the returned name has a length limit. */ + const char *entryval = NISENTRYVAL (0, 0, result); + size_t buflen = strlen (entryval) + 10 + tablename_len; + bufptr = alloca (buflen); + snprintf (bufptr, buflen, "[cname=%s],%s", + entryval, tablename_val); } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - __set_errno (olderr); + nis_freeresult (result); + result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + } - nis_freeresult (result); - return status; - } + if (result == NULL) + { + __set_errno (ENOMEM); + return NSS_STATUS_TRYAGAIN; + } - parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen, - errnop); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + + __set_errno (olderr); nis_freeresult (result); + return status; + } - if (parse_res < 1) + parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen, + errnop); + + nis_freeresult (result); + + if (parse_res < 1) + { + if (parse_res == -1) { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } enum nss_status @@ -358,55 +379,57 @@ _nss_nisplus_getprotobynumber_r (const int number, struct protoent *proto, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } - { - int parse_res; - nis_result *result; - char buf[46 + tablename_len]; - int olderr = errno; + char buf[12 + 3 * sizeof (number) + tablename_len]; + int olderr = errno; - sprintf (buf, "[number=%d],%s", number, tablename_val); + snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val); - result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + nis_result *result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); - if (result == NULL) - { - __set_errno (ENOMEM); - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + if (result == NULL) + { + __set_errno (ENOMEM); + return NSS_STATUS_TRYAGAIN; + } - __set_errno (olderr); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } - - parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen, - errnop); - - nis_freeresult (result); - - if (parse_res < 1) - { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } - } - return NSS_STATUS_SUCCESS; - } + __set_errno (olderr); + + nis_freeresult (result); + return status; + } + + int parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen, + errnop); + + nis_freeresult (result); + + if (parse_res < 1) + { + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; + } + } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-publickey.c b/nis/nss_nisplus/nisplus-publickey.c index 58ae7012af..c24e898137 100644 --- a/nis/nss_nisplus/nisplus-publickey.c +++ b/nis/nss_nisplus/nisplus-publickey.c @@ -1,4 +1,4 @@ -/* Copyright (c) 1997, 1999, 2001, 2003 Free Software Foundation, Inc. +/* Copyright (c) 1997, 1999, 2001, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -37,7 +37,7 @@ _nss_nisplus_getpublickey (const char *netname, char *pkey, int *errnop) { nis_result *res; enum nss_status retval; - char buf[NIS_MAXNAMELEN+2]; + char buf[NIS_MAXNAMELEN + 2]; size_t slen; char *domain, *cptr; int len; @@ -120,7 +120,7 @@ _nss_nisplus_getsecretkey (const char *netname, char *skey, char *passwd, { nis_result *res; enum nss_status retval; - char buf[NIS_MAXNAMELEN+2]; + char buf[NIS_MAXNAMELEN + 2]; size_t slen; char *domain, *cptr; int len; @@ -154,7 +154,7 @@ _nss_nisplus_getsecretkey (const char *netname, char *skey, char *passwd, buf[slen] = '\0'; } - res = nis_list (buf, USE_DGRAM+NO_AUTHINFO+FOLLOW_LINKS+FOLLOW_PATH, + res = nis_list (buf, USE_DGRAM | NO_AUTHINFO | FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); if (res == NULL) @@ -242,9 +242,9 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, { char *domain; nis_result *res; - char sname[NIS_MAXNAMELEN+2]; /* search criteria + table name */ + char sname[NIS_MAXNAMELEN + 2]; /* search criteria + table name */ size_t slen; - char principal[NIS_MAXNAMELEN+1]; + char principal[NIS_MAXNAMELEN + 1]; int len; /* 1. Get home domain of user. */ @@ -255,10 +255,6 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, ++domain; /* skip '@' */ /* 2. Get user's nisplus principal name. */ - if ((strlen (netname) + strlen (domain)+45) > - (size_t) NIS_MAXNAMELEN) - return NSS_STATUS_UNAVAIL; - slen = snprintf (sname, NIS_MAXNAMELEN, "[auth_name=%s,auth_type=DES],cred.org_dir.%s", netname, domain); @@ -339,8 +335,9 @@ _nss_nisplus_netname2user (char netname[MAXNETNAMELEN + 1], uid_t *uidp, return NSS_STATUS_UNAVAIL; } - slen = sprintf (sname, "[cname=%s,auth_type=LOCAL],cred.org_dir.%s", - principal, domain); + slen = snprintf (sname, sizeof (sname), + "[cname=%s,auth_type=LOCAL],cred.org_dir.%s", + principal, domain); if (sname[slen - 1] != '.') { diff --git a/nis/nss_nisplus/nisplus-pwd.c b/nis/nss_nisplus/nisplus-pwd.c index 8f3bc997b3..97679dd349 100644 --- a/nis/nss_nisplus/nisplus-pwd.c +++ b/nis/nss_nisplus/nisplus-pwd.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1999, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1999,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,6 +17,7 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include <atomic.h> #include <nss.h> #include <errno.h> #include <pwd.h> @@ -30,27 +31,39 @@ __libc_lock_define_initialized (static, lock) static nis_result *result; -static nis_name tablename_val; -static u_long tablename_len; +nis_name pwd_tablename_val attribute_hidden; +size_t pwd_tablename_len attribute_hidden; -static enum nss_status -_nss_create_tablename (int *errnop) +enum nss_status +_nss_pwd_create_tablename (int *errnop) { - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "passwd.org_dir."; - p = __stpcpy (buf, "passwd.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); - if (tablename_val == NULL) + char *p = malloc (sizeof (prefix) + local_dir_len); + if (pwd_tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + pwd_tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + if (atomic_compare_and_exchange_bool_acq (&pwd_tablename_val, p, NULL)) + { + /* Another thread already installed the value. */ + free (p); + pwd_tablename_len = strlen (pwd_tablename_val); + } } + return NSS_STATUS_SUCCESS; } @@ -59,16 +72,20 @@ enum nss_status _nss_nisplus_setpwent (int stayopen) { enum nss_status status = NSS_STATUS_SUCCESS; - int err; __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } - if (tablename_val == NULL) - status = _nss_create_tablename (&err); + if (pwd_tablename_val == NULL) + { + int err; + status = _nss_pwd_create_tablename (&err); + } __libc_lock_unlock (lock); @@ -80,9 +97,11 @@ _nss_nisplus_endpwent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -103,25 +122,22 @@ internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen, if (result == NULL) { saved_res = NULL; - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - enum nss_status status = _nss_create_tablename (errnop); + enum nss_status status = _nss_pwd_create_tablename (errnop); if (status != NSS_STATUS_SUCCESS) return status; } - result = nis_first_entry (tablename_val); + result = nis_first_entry (pwd_tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } else { - nis_result *res; - saved_res = result; - res = nis_next_entry (tablename_val, &result->cookie); - result = res; + result = nis_next_entry (pwd_tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { nis_freeresult (saved_res); @@ -131,19 +147,18 @@ internal_nisplus_getpwent_r (struct passwd *pw, char *buffer, size_t buflen, parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop); - if (parse_res == -1) + if (__builtin_expect (parse_res == -1, 0)) { nis_freeresult (result); result = saved_res; *errnop = ERANGE; return NSS_STATUS_TRYAGAIN; } - else - { - if (saved_res) - nis_freeresult (saved_res); - } - } while (!parse_res); + + if (saved_res) + nis_freeresult (saved_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -169,9 +184,9 @@ _nss_nisplus_getpwnam_r (const char *name, struct passwd *pw, { int parse_res; - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - enum nss_status status = _nss_create_tablename (errnop); + enum nss_status status = _nss_pwd_create_tablename (errnop); if (status != NSS_STATUS_SUCCESS) return status; @@ -182,107 +197,107 @@ _nss_nisplus_getpwnam_r (const char *name, struct passwd *pw, *errnop = EINVAL; return NSS_STATUS_UNAVAIL; } - else - { - nis_result *result; - char buf[strlen (name) + 24 + tablename_len]; - int olderr = errno; - sprintf (buf, "[name=%s],%s", name, tablename_val); + nis_result *result; + char buf[strlen (name) + 9 + pwd_tablename_len]; + int olderr = errno; - result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[name=%s],%s", name, pwd_tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - __set_errno (olderr); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - nis_freeresult (result); - return status; - } + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, - errnop); + __set_errno (olderr); nis_freeresult (result); + return status; + } + + parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop); + + nis_freeresult (result); - if (parse_res < 1) + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } enum nss_status _nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw, char *buffer, size_t buflen, int *errnop) { - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - enum nss_status status = _nss_create_tablename (errnop); + enum nss_status status = _nss_pwd_create_tablename (errnop); if (status != NSS_STATUS_SUCCESS) return status; } - { - int parse_res; - nis_result *result; - char buf[100 + tablename_len]; - int olderr = errno; + int parse_res; + nis_result *result; + char buf[8 + 3 * sizeof (unsigned long int) + pwd_tablename_len]; + int olderr = errno; - sprintf (buf, "[uid=%lu],%s", (unsigned long int) uid, tablename_val); + snprintf (buf, sizeof (buf), "[uid=%lu],%s", + (unsigned long int) uid, pwd_tablename_val); - result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - __set_errno (olderr); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - nis_freeresult (result); - return status; - } - - parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop); - - nis_freeresult (result); - - if (parse_res < 1) - { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } - } - return NSS_STATUS_SUCCESS; - } + __set_errno (olderr); + + nis_freeresult (result); + return status; + } + + parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop); + + nis_freeresult (result); + + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; + } + } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-rpc.c b/nis/nss_nisplus/nisplus-rpc.c index 31d48d17a3..98baa5f7fc 100644 --- a/nis/nss_nisplus/nisplus-rpc.c +++ b/nis/nss_nisplus/nisplus-rpc.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -17,13 +17,14 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> +#include <nss.h> #include <string.h> -#include <bits/libc-lock.h> #include <rpc/netdb.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -138,19 +139,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "rpc.org_dir."; - p = __stpcpy (buf, "rpc.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -159,16 +167,20 @@ enum nss_status _nss_nisplus_setrpcent (int stayopen) { enum nss_status status = NSS_STATUS_SUCCESS; - int err; __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) - status = _nss_create_tablename (&err); + { + int err; + status = _nss_create_tablename (&err); + } __libc_lock_unlock (lock); @@ -180,9 +192,11 @@ _nss_nisplus_endrpcent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -217,11 +231,8 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer, } else { - nis_result *res; - saved_res = result; - res = nis_next_entry (tablename_val, &result->cookie); - result = res; + result = nis_next_entry (tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { nis_freeresult (saved_res); @@ -243,7 +254,8 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer, if (saved_res) nis_freeresult (saved_res); } - } while (!parse_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -271,77 +283,89 @@ _nss_nisplus_getrpcbyname_r (const char *name, struct rpcent *rpc, if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } if (name == NULL) return NSS_STATUS_NOTFOUND; - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s],%s", name, tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS - && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, - "rpc_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) - sprintf (buf, "[cname=%s],%s", name, tablename_val); - else - sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result), - tablename_val); + char buf[strlen (name) + 10 + tablename_len]; + int olderr = errno; - nis_freeresult (result); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS , NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search */ + snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) + if (result != NULL) + { + char *bufptr = buf; + + /* If we did not find it, try it as original name. But if the + database is correct, we should find it in the first case, too */ + if ((result->status != NIS_SUCCESS + && result->status != NIS_S_SUCCESS) + || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ + || strcmp (result->objects.objects_val->EN_data.en_type, + "rpc_tbl") != 0 + || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3) + snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val); + else { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; + /* We need to allocate a new buffer since there is no + guarantee the returned name has a length limit. */ + const char *entryval = NISENTRYVAL (0, 0, result); + size_t buflen = strlen (entryval) + 10 + tablename_len; + bufptr = alloca (buflen); + snprintf (bufptr, buflen, "[cname=%s],%s", + entryval, tablename_val); } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - __set_errno (olderr); + nis_freeresult (result); + result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS , NULL, NULL); + } - nis_freeresult (result); - return status; - } + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen, - errnop); + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + + __set_errno (olderr); nis_freeresult (result); + return status; + } - if (parse_res < 1) - { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } + parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen, + errnop); - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; + nis_freeresult (result); + + if (parse_res < 1) + { + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; } - return NSS_STATUS_SUCCESS; + + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } + + return NSS_STATUS_SUCCESS; } enum nss_status @@ -350,55 +374,57 @@ _nss_nisplus_getrpcbynumber_r (const int number, struct rpcent *rpc, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } - { - int parse_res; - nis_result *result; - char buf[100 + tablename_len]; - int olderr = errno; + char buf[12 + 3 * sizeof (number) + tablename_len]; + int olderr = errno; + + snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val); + + nis_result *result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } + + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); - sprintf (buf, "[number=%d],%s", number, tablename_val); + __set_errno (olderr); - result = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL); + nis_freeresult (result); + return status; + } - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + int parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen, + errnop); - __set_errno (olderr); + nis_freeresult (result); - nis_freeresult (result); - return status; - } - - parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen, - errnop); - - nis_freeresult (result); - - if (parse_res < 1) - { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } - } - return NSS_STATUS_SUCCESS; - } + if (parse_res < 1) + { + if (parse_res == -1) + { + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; + } + } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c index fbb6987e9e..848e5f4dd8 100644 --- a/nis/nss_nisplus/nisplus-service.c +++ b/nis/nss_nisplus/nisplus-service.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997,1998,1999,2001,2002,2003 Free Software Foundation, Inc. +/* Copyright (C) 1997-1999,2001,2002,2003,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997. @@ -17,13 +17,14 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <nss.h> -#include <errno.h> +#include <atomic.h> #include <ctype.h> +#include <errno.h> #include <netdb.h> +#include <nss.h> #include <string.h> -#include <bits/libc-lock.h> #include <rpcsvc/nis.h> +#include <bits/libc-lock.h> #include "nss-nisplus.h" @@ -45,8 +46,6 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, { char *first_unused = buffer; size_t room_left = buflen; - unsigned int i; - char *p, *line; if (result == NULL) return 0; @@ -81,10 +80,10 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, first_unused += strlen (first_unused) + 1; serv->s_port = htons (atoi (NISENTRYVAL (0, 3, result))); - p = first_unused; + char *p = first_unused; - line = p; - for (i = 0; i < result->objects.objects_len; ++i) + char *line = p; + for (unsigned int i = 0; i < result->objects.objects_len; ++i) { if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0) { @@ -110,7 +109,7 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv, room_left -= (sizeof (char *)); serv->s_aliases[0] = NULL; - i = 0; + unsigned int i = 0; while (*line != '\0') { /* Skip leading blanks. */ @@ -147,19 +146,26 @@ _nss_create_tablename (int *errnop) { if (tablename_val == NULL) { - char buf [40 + strlen (nis_local_directory ())]; - char *p; + const char *local_dir = nis_local_directory (); + size_t local_dir_len = strlen (local_dir); + static const char prefix[] = "services.org_dir."; - p = __stpcpy (buf, "services.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); + char *p = malloc (sizeof (prefix) + local_dir_len); if (tablename_val == NULL) { *errnop = errno; return NSS_STATUS_TRYAGAIN; } - tablename_len = strlen (tablename_val); + + memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1); + + tablename_len = sizeof (prefix) - 1 + local_dir_len; + + atomic_write_barrier (); + + tablename_val = p; } + return NSS_STATUS_SUCCESS; } @@ -172,9 +178,11 @@ _nss_nisplus_setservent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } if (tablename_val == NULL) status = _nss_create_tablename (&err); @@ -189,9 +197,11 @@ _nss_nisplus_endservent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -226,11 +236,8 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer, } else { - nis_result *res; - saved_res = result; - res = nis_next_entry (tablename_val, &result->cookie); - result = res; + result = nis_next_entry (tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { nis_freeresult (saved_res); @@ -240,7 +247,7 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer, parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen, errnop); - if (parse_res == -1) + if (__builtin_expect (parse_res == -1, 0)) { nis_freeresult (result); result = saved_res; @@ -262,11 +269,9 @@ enum nss_status _nss_nisplus_getservent_r (struct servent *result, char *buffer, size_t buflen, int *errnop) { - int status; - __libc_lock_lock (lock); - status = internal_nisplus_getservent_r (result, buffer, buflen, errnop); + int status = internal_nisplus_getservent_r (result, buffer, buflen, errnop); __libc_lock_unlock (lock); @@ -278,12 +283,14 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol, struct servent *serv, char *buffer, size_t buflen, int *errnop) { - int parse_res; - if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -293,72 +300,82 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol, *errnop = EINVAL; return NSS_STATUS_NOTFOUND; } - else - { - nis_result *result; - char buf[strlen (name) + 255 + tablename_len]; - int olderr = errno; - /* Search at first in the alias list, and use the correct name - for the next search */ - sprintf (buf, "[name=%s,proto=%s],%s", name, protocol, - tablename_val); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + size_t protocol_len = strlen (protocol); + char buf[strlen (name) + protocol_len + 17 + tablename_len]; + int olderr = errno; - if (result != NULL) - { - /* If we do not find it, try it as original name. But if the - database is correct, we should find it in the first case, too */ - if ((result->status != NIS_SUCCESS - && result->status != NIS_S_SUCCESS) - || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ - || strcmp (result->objects.objects_val->EN_data.en_type, - "services_tbl") != 0 - || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) - sprintf (buf, "[cname=%s,proto=%s],%s", name, protocol, - tablename_val); - else - sprintf (buf, "[cname=%s,proto=%s],%s", - NISENTRYVAL (0, 0, result), protocol, tablename_val); - - nis_freeresult (result); - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - } + /* Search at first in the alias list, and use the correct name + for the next search */ + snprintf (buf, sizeof (buf), "[name=%s,proto=%s],%s", name, protocol, + tablename_val); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - if (result == NULL) + if (result != NULL) + { + char *bufptr = buf; + + /* If we did not find it, try it as original name. But if the + database is correct, we should find it in the first case, too */ + if ((result->status != NIS_SUCCESS + && result->status != NIS_S_SUCCESS) + || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ + || strcmp (result->objects.objects_val->EN_data.en_type, + "services_tbl") != 0 + || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4) + snprintf (buf, sizeof (buf), "[cname=%s,proto=%s],%s", name, protocol, + tablename_val); + else { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; + /* We need to allocate a new buffer since there is no + guarantee the returned name has a length limit. */ + const char *entryval = NISENTRYVAL(0, 0, result); + size_t buflen = (strlen (entryval) + protocol_len + 17 + + tablename_len); + bufptr = alloca (buflen); + snprintf (bufptr, buflen, "[cname=%s,proto=%s],%s", + entryval, protocol, tablename_val); } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); - __set_errno (olderr); + nis_freeresult (result); + result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + } - nis_freeresult (result); - return status; - } + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } + + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + + __set_errno (olderr); - parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen, - errnop); nis_freeresult (result); + return status; + } + + int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen, + errnop); + nis_freeresult (result); - if (parse_res < 1) + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } enum nss_status @@ -368,8 +385,12 @@ _nss_nisplus_getservbyport_r (const int number, const char *protocol, { if (tablename_val == NULL) { + __libc_lock_lock (lock); + enum nss_status status = _nss_create_tablename (errnop); + __libc_lock_unlock (lock); + if (status != NSS_STATUS_SUCCESS) return status; } @@ -379,50 +400,48 @@ _nss_nisplus_getservbyport_r (const int number, const char *protocol, *errnop = EINVAL; return NSS_STATUS_NOTFOUND; } - else - { - int parse_res; - nis_result *result; - char buf[60 + strlen (protocol) + tablename_len]; - int olderr = errno; - sprintf (buf, "[port=%d,proto=%s],%s", - number, protocol, tablename_val); + char buf[17 + 3 * sizeof (int) + strlen (protocol) + tablename_len]; + int olderr = errno; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[port=%d,proto=%s],%s", + number, protocol, tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - __set_errno (olderr); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - nis_freeresult (result); - return status; - } + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + + __set_errno (olderr); - parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen, - errnop); nis_freeresult (result); + return status; + } + + int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen, + errnop); + nis_freeresult (result); - if (parse_res < 1) + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/nss_nisplus/nisplus-spwd.c b/nis/nss_nisplus/nisplus-spwd.c index c317469137..8584300698 100644 --- a/nis/nss_nisplus/nisplus-spwd.c +++ b/nis/nss_nisplus/nisplus-spwd.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997, 2001, 2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. @@ -30,29 +30,12 @@ __libc_lock_define_initialized (static, lock) static nis_result *result; -static nis_name tablename_val; -static u_long tablename_len; -static enum nss_status -_nss_create_tablename (int *errnop) -{ - if (tablename_val == NULL) - { - char buf [40 + strlen (nis_local_directory ())]; - char *p; +/* Defined in nisplus-pwd.c. */ +extern nis_name pwd_tablename_val attribute_hidden; +extern size_t pwd_tablename_len attribute_hidden; +extern enum nss_status _nss_pwd_create_tablename (int *errnop); - p = __stpcpy (buf, "passwd.org_dir."); - p = __stpcpy (p, nis_local_directory ()); - tablename_val = __strdup (buf); - if (tablename_val == NULL) - { - *errnop = errno; - return NSS_STATUS_TRYAGAIN; - } - tablename_len = strlen (tablename_val); - } - return NSS_STATUS_SUCCESS; -} enum nss_status _nss_nisplus_setspent (int stayopen) @@ -62,12 +45,14 @@ _nss_nisplus_setspent (int stayopen) __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } - if (tablename_val == NULL) - status = _nss_create_tablename (&err); + if (pwd_tablename_val == NULL) + status = _nss_pwd_create_tablename (&err); __libc_lock_unlock (lock); @@ -79,9 +64,11 @@ _nss_nisplus_endspent (void) { __libc_lock_lock (lock); - if (result) - nis_freeresult (result); - result = NULL; + if (result != NULL) + { + nis_freeresult (result); + result = NULL; + } __libc_lock_unlock (lock); @@ -103,25 +90,22 @@ internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen, { saved_res = NULL; - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - enum nss_status status = _nss_create_tablename (errnop); + enum nss_status status = _nss_pwd_create_tablename (errnop); if (status != NSS_STATUS_SUCCESS) return status; } - result = nis_first_entry (tablename_val); + result = nis_first_entry (pwd_tablename_val); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) return niserr2nss (result->status); } else { - nis_result *res; - saved_res = result; - res = nis_next_entry (tablename_val, &result->cookie); - result = res; + result = nis_next_entry (pwd_tablename_val, &result->cookie); if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) { nis_freeresult (saved_res); @@ -131,19 +115,18 @@ internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen, parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen, errnop); - if (parse_res == -1) + if (__builtin_expect (parse_res == -1, 0)) { nis_freeresult (result); result = saved_res; *errnop = ERANGE; return NSS_STATUS_TRYAGAIN; } - else - { - if (saved_res) - nis_freeresult (saved_res); - } - } while (!parse_res); + + if (saved_res != NULL) + nis_freeresult (saved_res); + } + while (!parse_res); return NSS_STATUS_SUCCESS; } @@ -169,9 +152,9 @@ _nss_nisplus_getspnam_r (const char *name, struct spwd *sp, { int parse_res; - if (tablename_val == NULL) + if (pwd_tablename_val == NULL) { - enum nss_status status = _nss_create_tablename (errnop); + enum nss_status status = _nss_pwd_create_tablename (errnop); if (status != NSS_STATUS_SUCCESS) return status; @@ -182,48 +165,47 @@ _nss_nisplus_getspnam_r (const char *name, struct spwd *sp, *errnop = EINVAL; return NSS_STATUS_NOTFOUND; } - else - { - nis_result *result; - char buf[strlen (name) + 24 + tablename_len]; - int olderr = errno; - sprintf (buf, "[name=%s],%s", name, tablename_val); + nis_result *result; + char buf[strlen (name) + 9 + pwd_tablename_len]; + int olderr = errno; - result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); + snprintf (buf, sizeof (buf), "[name=%s],%s", name, pwd_tablename_val); - if (result == NULL) - { - *errnop = ENOMEM; - return NSS_STATUS_TRYAGAIN; - } - if (niserr2nss (result->status) != NSS_STATUS_SUCCESS) - { - enum nss_status status = niserr2nss (result->status); + result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL); - __set_errno (olderr); + if (result == NULL) + { + *errnop = ENOMEM; + return NSS_STATUS_TRYAGAIN; + } - nis_freeresult (result); - return status; - } + if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0)) + { + enum nss_status status = niserr2nss (result->status); + + __set_errno (olderr); - parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen, - errnop); nis_freeresult (result); + return status; + } - if (parse_res < 1) + parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen, errnop); + nis_freeresult (result); + + if (__builtin_expect (parse_res < 1, 0)) + { + if (parse_res == -1) { - if (parse_res == -1) - { - *errnop = ERANGE; - return NSS_STATUS_TRYAGAIN; - } - else - { - __set_errno (olderr); - return NSS_STATUS_NOTFOUND; - } + *errnop = ERANGE; + return NSS_STATUS_TRYAGAIN; + } + else + { + __set_errno (olderr); + return NSS_STATUS_NOTFOUND; } - return NSS_STATUS_SUCCESS; } + + return NSS_STATUS_SUCCESS; } diff --git a/nis/ypclnt.c b/nis/ypclnt.c index 6230cb84dc..66095667c6 100644 --- a/nis/ypclnt.c +++ b/nis/ypclnt.c @@ -46,12 +46,12 @@ struct dom_binding }; typedef struct dom_binding dom_binding; -static struct timeval RPCTIMEOUT = {25, 0}; -static struct timeval UDPTIMEOUT = {5, 0}; +static const struct timeval RPCTIMEOUT = {25, 0}; +static const struct timeval UDPTIMEOUT = {5, 0}; static int const MAXTRIES = 2; -static char __ypdomainname[NIS_MAXNAMELEN + 1] = "\0"; +static char ypdomainname[NIS_MAXNAMELEN + 1]; __libc_lock_define_initialized (static, ypbindlist_lock) -static dom_binding *__ypbindlist = NULL; +static dom_binding *ypbindlist = NULL; static void @@ -111,8 +111,8 @@ yp_bind_ypbindprog (const char *domain, dom_binding *ysd) int clnt_sock; CLIENT *client; - memset (&clnt_saddr, '\0', sizeof clnt_saddr); clnt_saddr.sin_family = AF_INET; + clnt_saddr.sin_port = 0; clnt_saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); clnt_sock = RPC_ANYSOCK; client = clnttcp_create (&clnt_saddr, YPBINDPROG, YPBINDVERS, @@ -142,7 +142,7 @@ yp_bind_ypbindprog (const char *domain, dom_binding *ysd) if (ypbr.ypbind_status != YPBIND_SUCC_VAL) { - fprintf (stderr, _("YPBINDPROC_DOMAIN: %s\n"), + fprintf (stderr, "YPBINDPROC_DOMAIN: %s\n", ypbinderr_string (ypbr.ypbind_resp_u.ypbind_error)); return YPERR_DOMAIN; } @@ -225,7 +225,7 @@ yp_bind (const char *indomain) __libc_lock_lock (ypbindlist_lock); - status = __yp_bind (indomain, &__ypbindlist); + status = __yp_bind (indomain, &ypbindlist); __libc_lock_unlock (ypbindlist_lock); @@ -239,7 +239,7 @@ yp_unbind_locked (const char *indomain) dom_binding *ydbptr, *ydbptr2; ydbptr2 = NULL; - ydbptr = __ypbindlist; + ydbptr = ypbindlist; while (ydbptr != NULL) { @@ -249,7 +249,7 @@ yp_unbind_locked (const char *indomain) work = ydbptr; if (ydbptr2 == NULL) - __ypbindlist = __ypbindlist->dom_pnext; + ypbindlist = ypbindlist->dom_pnext; else ydbptr2 = ydbptr->dom_pnext; __yp_unbind (work); @@ -306,7 +306,7 @@ do_ypcall (const char *domain, u_long prog, xdrproc_t xargs, status = YPERR_YPERR; __libc_lock_lock (ypbindlist_lock); - ydb = __ypbindlist; + ydb = ypbindlist; while (ydb != NULL) { if (strcmp (domain, ydb->dom_domain) == 0) @@ -349,7 +349,7 @@ do_ypcall (const char *domain, u_long prog, xdrproc_t xargs, if (status != YPERR_SUCCESS) { ydb = calloc (1, sizeof (dom_binding)); - if (yp_bind_ypbindprog (domain, ydb) == YPERR_SUCCESS) + if (ydb != NULL && yp_bind_ypbindprog (domain, ydb) == YPERR_SUCCESS) { status = __ypclnt_call (domain, prog, xargs, req, xres, resp, &ydb, 1); @@ -365,6 +365,21 @@ do_ypcall (const char *domain, u_long prog, xdrproc_t xargs, return status; } +/* Like do_ypcall, but translate the status value if necessary. */ +static int +do_ypcall_tr (const char *domain, u_long prog, xdrproc_t xargs, + caddr_t req, xdrproc_t xres, caddr_t resp) +{ + int status = do_ypcall (domain, prog, xargs, req, xres, resp); + if (status == YPERR_SUCCESS) + /* We cast to ypresp_val although the pointer could also be of + type ypresp_key_val or ypresp_master or ypresp_order or + ypresp_maplist. But the stat element is in a common prefix so + this does not matter. */ + status = ypprot_err (((struct ypresp_val *) resp)->stat); + return status; +} + __libc_lock_define_initialized (static, domainname_lock) @@ -376,21 +391,21 @@ yp_get_default_domain (char **outdomain) __libc_lock_lock (domainname_lock); - if (__ypdomainname[0] == '\0') + if (ypdomainname[0] == '\0') { - if (getdomainname (__ypdomainname, NIS_MAXNAMELEN)) + if (getdomainname (ypdomainname, NIS_MAXNAMELEN)) result = YPERR_NODOM; - else if (strcmp (__ypdomainname, "(none)") == 0) + else if (strcmp (ypdomainname, "(none)") == 0) { /* If domainname is not set, some systems will return "(none)" */ - __ypdomainname[0] = '\0'; + ypdomainname[0] = '\0'; result = YPERR_NODOM; } else - *outdomain = __ypdomainname; + *outdomain = ypdomainname; } else - *outdomain = __ypdomainname; + *outdomain = ypdomainname; __libc_lock_unlock (domainname_lock); @@ -403,14 +418,14 @@ __yp_check (char **domain) { char *unused; - if (__ypdomainname[0] == '\0') + if (ypdomainname[0] == '\0') if (yp_get_default_domain (&unused)) return 0; if (domain) - *domain = __ypdomainname; + *domain = ypdomainname; - if (yp_bind (__ypdomainname) == 0) + if (yp_bind (ypdomainname) == 0) return 1; return 0; } @@ -437,25 +452,26 @@ yp_match (const char *indomain, const char *inmap, const char *inkey, *outvallen = 0; memset (&resp, '\0', sizeof (resp)); - result = do_ypcall (indomain, YPPROC_MATCH, (xdrproc_t) xdr_ypreq_key, - (caddr_t) & req, (xdrproc_t) xdr_ypresp_val, - (caddr_t) & resp); + result = do_ypcall_tr (indomain, YPPROC_MATCH, (xdrproc_t) xdr_ypreq_key, + (caddr_t) &req, (xdrproc_t) xdr_ypresp_val, + (caddr_t) &resp); if (result != YPERR_SUCCESS) return result; - if (resp.stat != YP_TRUE) - return ypprot_err (resp.stat); *outvallen = resp.val.valdat_len; *outval = malloc (*outvallen + 1); - if (__builtin_expect (*outval == NULL, 0)) - return YPERR_RESRC; - memcpy (*outval, resp.val.valdat_val, *outvallen); - (*outval)[*outvallen] = '\0'; + int status = YPERR_RESRC; + if (__builtin_expect (*outval != NULL, 1)) + { + memcpy (*outval, resp.val.valdat_val, *outvallen); + (*outval)[*outvallen] = '\0'; + status = YPERR_SUCCESS; + } xdr_free ((xdrproc_t) xdr_ypresp_val, (char *) &resp); - return YPERR_SUCCESS; + return status; } int @@ -478,30 +494,38 @@ yp_first (const char *indomain, const char *inmap, char **outkey, memset (&resp, '\0', sizeof (resp)); result = do_ypcall (indomain, YPPROC_FIRST, (xdrproc_t) xdr_ypreq_nokey, - (caddr_t) & req, (xdrproc_t) xdr_ypresp_key_val, - (caddr_t) & resp); + (caddr_t) &req, (xdrproc_t) xdr_ypresp_key_val, + (caddr_t) &resp); if (result != RPC_SUCCESS) return YPERR_RPC; if (resp.stat != YP_TRUE) return ypprot_err (resp.stat); - *outkeylen = resp.key.keydat_len; - *outkey = malloc (*outkeylen + 1); - if (__builtin_expect (*outkey == NULL, 0)) - return YPERR_RESRC; - memcpy (*outkey, resp.key.keydat_val, *outkeylen); - (*outkey)[*outkeylen] = '\0'; - *outvallen = resp.val.valdat_len; - *outval = malloc (*outvallen + 1); - if (__builtin_expect (*outval == NULL, 0)) - return YPERR_RESRC; - memcpy (*outval, resp.val.valdat_val, *outvallen); - (*outval)[*outvallen] = '\0'; + int status; + if (__builtin_expect ((*outkey = malloc (resp.key.keydat_len + 1)) != NULL + && (*outval = malloc (resp.val.valdat_len + + 1)) != NULL, 1)) + { + *outkeylen = resp.key.keydat_len; + memcpy (*outkey, resp.key.keydat_val, *outkeylen); + (*outkey)[*outkeylen] = '\0'; + + *outvallen = resp.val.valdat_len; + memcpy (*outval, resp.val.valdat_val, *outvallen); + (*outval)[*outvallen] = '\0'; + + status = YPERR_SUCCESS; + } + else + { + free (*outkey); + status = YPERR_RESRC; + } xdr_free ((xdrproc_t) xdr_ypresp_key_val, (char *) &resp); - return YPERR_SUCCESS; + return status; } int @@ -527,31 +551,37 @@ yp_next (const char *indomain, const char *inmap, const char *inkey, *outkeylen = *outvallen = 0; memset (&resp, '\0', sizeof (resp)); - result = do_ypcall (indomain, YPPROC_NEXT, (xdrproc_t) xdr_ypreq_key, - (caddr_t) & req, (xdrproc_t) xdr_ypresp_key_val, - (caddr_t) & resp); + result = do_ypcall_tr (indomain, YPPROC_NEXT, (xdrproc_t) xdr_ypreq_key, + (caddr_t) &req, (xdrproc_t) xdr_ypresp_key_val, + (caddr_t) &resp); if (result != YPERR_SUCCESS) return result; - if (resp.stat != YP_TRUE) - return ypprot_err (resp.stat); - *outkeylen = resp.key.keydat_len; - *outkey = malloc (*outkeylen + 1); - if (__builtin_expect (*outkey == NULL, 0)) - return YPERR_RESRC; - memcpy (*outkey, resp.key.keydat_val, *outkeylen); - (*outkey)[*outkeylen] = '\0'; - *outvallen = resp.val.valdat_len; - *outval = malloc (*outvallen + 1); - if (__builtin_expect (*outval == NULL, 0)) - return YPERR_RESRC; - memcpy (*outval, resp.val.valdat_val, *outvallen); - (*outval)[*outvallen] = '\0'; + int status; + if (__builtin_expect ((*outkey = malloc (resp.key.keydat_len + 1)) != NULL + && (*outval = malloc (resp.val.valdat_len + + 1)) != NULL, 1)) + { + *outkeylen = resp.key.keydat_len; + memcpy (*outkey, resp.key.keydat_val, *outkeylen); + (*outkey)[*outkeylen] = '\0'; + + *outvallen = resp.val.valdat_len; + memcpy (*outval, resp.val.valdat_val, *outvallen); + (*outval)[*outvallen] = '\0'; + + status = YPERR_SUCCESS; + } + else + { + free (*outkey); + status = YPERR_RESRC; + } xdr_free ((xdrproc_t) xdr_ypresp_key_val, (char *) &resp); - return YPERR_SUCCESS; + return status; } int @@ -570,13 +600,12 @@ yp_master (const char *indomain, const char *inmap, char **outname) memset (&resp, '\0', sizeof (ypresp_master)); - result = do_ypcall (indomain, YPPROC_MASTER, (xdrproc_t) xdr_ypreq_nokey, - (caddr_t) & req, (xdrproc_t) xdr_ypresp_master, (caddr_t) & resp); + result = do_ypcall_tr (indomain, YPPROC_MASTER, (xdrproc_t) xdr_ypreq_nokey, + (caddr_t) &req, (xdrproc_t) xdr_ypresp_master, + (caddr_t) &resp); if (result != YPERR_SUCCESS) return result; - if (resp.stat != YP_TRUE) - return ypprot_err (resp.stat); *outname = strdup (resp.peer); xdr_free ((xdrproc_t) xdr_ypresp_master, (char *) &resp); @@ -593,7 +622,7 @@ yp_order (const char *indomain, const char *inmap, unsigned int *outorder) enum clnt_stat result; if (indomain == NULL || indomain[0] == '\0' || - inmap == NULL || inmap == '\0') + inmap == NULL || inmap[0] == '\0') return YPERR_BADARGS; req.domain = (char *) indomain; @@ -601,18 +630,17 @@ yp_order (const char *indomain, const char *inmap, unsigned int *outorder) memset (&resp, '\0', sizeof (resp)); - result = do_ypcall (indomain, YPPROC_ORDER, (xdrproc_t) xdr_ypreq_nokey, - (caddr_t) & req, (xdrproc_t) xdr_ypresp_order, (caddr_t) & resp); + result = do_ypcall_tr (indomain, YPPROC_ORDER, (xdrproc_t) xdr_ypreq_nokey, + (caddr_t) &req, (xdrproc_t) xdr_ypresp_order, + (caddr_t) &resp); - if (result != YPERR_SUCCESS) + if (result == YPERR_SUCCESS) return result; - if (resp.stat != YP_TRUE) - return ypprot_err (resp.stat); *outorder = resp.ordernum; xdr_free ((xdrproc_t) xdr_ypresp_order, (char *) &resp); - return YPERR_SUCCESS; + return result; } struct ypresp_all_data @@ -694,8 +722,8 @@ yp_all (const char *indomain, const char *inmap, int clnt_sock; int saved_errno = errno; - if (indomain == NULL || indomain[0] == '\0' || - inmap == NULL || inmap == '\0') + if (indomain == NULL || indomain[0] == '\0' + || inmap == NULL || inmap[0] == '\0') return YPERR_BADARGS; try = 0; @@ -733,9 +761,9 @@ yp_all (const char *indomain, const char *inmap, (caddr_t) &req, (xdrproc_t) __xdr_ypresp_all, (caddr_t) &data, RPCTIMEOUT); - if (result != RPC_SUCCESS) + if (__builtin_expect (result != RPC_SUCCESS, 0)) { - /* Print the error message only on the last try */ + /* Print the error message only on the last try. */ if (try == MAXTRIES - 1) clnt_perror (clnt, "yp_all: clnt_call"); res = YPERR_RPC; @@ -759,6 +787,7 @@ yp_all (const char *indomain, const char *inmap, } int + yp_maplist (const char *indomain, struct ypmaplist **outmaplist) { struct ypresp_maplist resp; @@ -769,62 +798,82 @@ yp_maplist (const char *indomain, struct ypmaplist **outmaplist) memset (&resp, '\0', sizeof (resp)); - result = do_ypcall (indomain, YPPROC_MAPLIST, (xdrproc_t) xdr_domainname, - (caddr_t) & indomain, (xdrproc_t) xdr_ypresp_maplist, (caddr_t) & resp); - - if (result != YPERR_SUCCESS) - return result; - if (resp.stat != YP_TRUE) - return ypprot_err (resp.stat); + result = do_ypcall_tr (indomain, YPPROC_MAPLIST, (xdrproc_t) xdr_domainname, + (caddr_t) &indomain, (xdrproc_t) xdr_ypresp_maplist, + (caddr_t) &resp); - *outmaplist = resp.maps; - /* We give the list not free, this will be done by ypserv - xdr_free((xdrproc_t)xdr_ypresp_maplist, (char *)&resp); */ + if (__builtin_expect (result == YPERR_SUCCESS, 1)) + { + *outmaplist = resp.maps; + /* We don't free the list, this will be done by ypserv + xdr_free((xdrproc_t)xdr_ypresp_maplist, (char *)&resp); */ + } - return YPERR_SUCCESS; + return result; } const char * yperr_string (const int error) { + const char *str; switch (error) { case YPERR_SUCCESS: - return _("Success"); + str = "Success"; + break; case YPERR_BADARGS: - return _("Request arguments bad"); + str = "Request arguments bad"; + break; case YPERR_RPC: - return _("RPC failure on NIS operation"); + str = "RPC failure on NIS operation"; + break; case YPERR_DOMAIN: - return _("Can't bind to server which serves this domain"); + str = "Can't bind to server which serves this domain"; + break; case YPERR_MAP: - return _("No such map in server's domain"); + str = "No such map in server's domain"; + break; case YPERR_KEY: - return _("No such key in map"); + str = "No such key in map"; + break; case YPERR_YPERR: - return _("Internal NIS error"); + str = "Internal NIS error"; + break; case YPERR_RESRC: - return _("Local resource allocation failure"); + str = "Local resource allocation failure"; + break; case YPERR_NOMORE: - return _("No more records in map database"); + str = "No more records in map database"; + break; case YPERR_PMAP: - return _("Can't communicate with portmapper"); + str = "Can't communicate with portmapper"; + break; case YPERR_YPBIND: - return _("Can't communicate with ypbind"); + str = "Can't communicate with ypbind"; + break; case YPERR_YPSERV: - return _("Can't communicate with ypserv"); + str = "Can't communicate with ypserv"; + break; case YPERR_NODOM: - return _("Local domain name not set"); + str = "Local domain name not set"; + break; case YPERR_BADDB: - return _("NIS map database is bad"); + str = "NIS map database is bad"; + break; case YPERR_VERS: - return _("NIS client/server version mismatch - can't supply service"); + str = "NIS client/server version mismatch - can't supply service"; + break; case YPERR_ACCESS: - return _("Permission denied"); + str = "Permission denied"; + break; case YPERR_BUSY: - return _("Database is busy"); + str = "Database is busy"; + break; + default: + str = "Unknown NIS error code"; + break; } - return _("Unknown NIS error code"); + return _(str); } static const int8_t yp_2_yperr[] = @@ -854,19 +903,26 @@ libnsl_hidden_def (ypprot_err) const char * ypbinderr_string (const int error) { + const char *str; switch (error) { case 0: - return _("Success"); + str = "Success"; + break; case YPBIND_ERR_ERR: - return _("Internal ypbind error"); + str = "Internal ypbind error"; + break; case YPBIND_ERR_NOSERV: - return _("Domain not bound"); + str = "Domain not bound"; + break; case YPBIND_ERR_RESC: - return _("System resource allocation failure"); + str = "System resource allocation failure"; + break; default: - return _("Unknown ypbind error"); + str = "Unknown ypbind error"; + break; } + return _(str); } libnsl_hidden_def (ypbinderr_string) @@ -948,6 +1004,7 @@ again: { if (clnt->cl_auth->ah_cred.oa_flavor == AUTH_DES) { + auth_destroy (clnt->cl_auth); clnt->cl_auth = authunix_create_default (); goto again; } |