summaryrefslogtreecommitdiff
path: root/nis/nss_compat/compat-spwd.c
diff options
context:
space:
mode:
Diffstat (limited to 'nis/nss_compat/compat-spwd.c')
-rw-r--r--nis/nss_compat/compat-spwd.c161
1 files changed, 93 insertions, 68 deletions
diff --git a/nis/nss_compat/compat-spwd.c b/nis/nss_compat/compat-spwd.c
index 5da19d3feb..92224f8ae7 100644
--- a/nis/nss_compat/compat-spwd.c
+++ b/nis/nss_compat/compat-spwd.c
@@ -291,7 +291,7 @@ _nss_compat_endspent (void)
static enum nss_status
getspent_next_nis_netgr (const char *name, struct spwd *result, ent_t *ent,
- char *group, char *buffer, size_t buflen)
+ char *group, char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
char *ypdomain, *host, *user, *domain, *outval, *p, *p2;
@@ -320,7 +320,8 @@ getspent_next_nis_netgr (const char *name, struct spwd *result, ent_t *ent,
saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
- &ent->netgrdata, buffer, buflen);
+ &ent->netgrdata, buffer, buflen,
+ errnop);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
@@ -348,7 +349,7 @@ getspent_next_nis_netgr (const char *name, struct spwd *result, ent_t *ent,
p2len = spwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -357,7 +358,8 @@ getspent_next_nis_netgr (const char *name, struct spwd *result, ent_t *ent,
while (isspace (*p))
p++;
free (outval);
- if ((parse_res = _nss_files_parse_spent (p, result, data, buflen)) == -1)
+ parse_res = _nss_files_parse_spent (p, result, data, buflen, errnop);
+ if (parse_res == -1)
{
ent->netgrdata.cursor = saved_cursor;
return NSS_STATUS_TRYAGAIN;
@@ -379,7 +381,7 @@ getspent_next_nis_netgr (const char *name, struct spwd *result, ent_t *ent,
static enum nss_status
getspent_next_nisplus_netgr (const char *name, struct spwd *result,
ent_t *ent, char *group, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
char *ypdomain, *host, *user, *domain, *p2;
int status, parse_res;
@@ -409,7 +411,8 @@ getspent_next_nisplus_netgr (const char *name, struct spwd *result,
saved_cursor = ent->netgrdata.cursor;
status = __internal_getnetgrent_r (&host, &user, &domain,
- &ent->netgrdata, buffer, buflen);
+ &ent->netgrdata, buffer, buflen,
+ errnop);
if (status != 1)
{
__internal_endnetgrent (&ent->netgrdata);
@@ -432,25 +435,27 @@ getspent_next_nisplus_netgr (const char *name, struct spwd *result,
p2len = spwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
buflen -= p2len;
{
char buf[strlen (user) + 30 + pwdtablelen];
- sprintf(buf, "[name=%s],%s", user, pwdtable);
- nisres = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ sprintf (buf, "[name=%s],%s", user, pwdtable);
+ nisres = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
}
if (niserr2nss (nisres->status) != NSS_STATUS_SUCCESS)
{
nis_freeresult (nisres);
continue;
}
- if ((parse_res = _nss_nisplus_parse_spent (nisres, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_spent (nisres, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
nis_freeresult (nisres);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
nis_freeresult (nisres);
@@ -470,7 +475,7 @@ getspent_next_nisplus_netgr (const char *name, struct spwd *result,
static enum nss_status
getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
int parse_res;
size_t p2len;
@@ -479,7 +484,7 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
p2len = spwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -494,7 +499,7 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
saved_first = TRUE;
saved_res = ent->result;
- ent->result = nis_first_entry(pwdtable);
+ ent->result = nis_first_entry (pwdtable);
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
ent->nis = 0;
@@ -510,7 +515,7 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
saved_first = FALSE;
saved_res = ent->result;
- res = nis_next_entry(pwdtable, &ent->result->cookie);
+ res = nis_next_entry (pwdtable, &ent->result->cookie);
ent->result = res;
if (niserr2nss (ent->result->status) != NSS_STATUS_SUCCESS)
{
@@ -520,13 +525,14 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
return niserr2nss (ent->result->status);
}
}
- if ((parse_res = _nss_nisplus_parse_spent (ent->result, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_spent (ent->result, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
ent->first = saved_first;
nis_freeresult (ent->result);
ent->result = saved_res;
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
@@ -548,7 +554,7 @@ getspent_next_nisplus (struct spwd *result, ent_t *ent, char *buffer,
static enum nss_status
getspent_next_nis (struct spwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
char *domain, *outkey, *outval, *p, *p2;
@@ -565,7 +571,7 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
p2len = spwd_need_buflen (&ent->pwd);
if (p2len > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p2 = buffer + (buflen - p2len);
@@ -618,13 +624,14 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
while (isspace (*p))
++p;
- if ((parse_res = _nss_files_parse_spent (p, result, data, buflen)) == -1)
+ parse_res = _nss_files_parse_spent (p, result, data, buflen, errnop);
+ if (parse_res == -1)
{
free (ent->oldkey);
ent->oldkey = saved_oldkey;
ent->oldkeylen = saved_oldlen;
ent->first = saved_first;
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
@@ -646,7 +653,7 @@ getspent_next_nis (struct spwd *result, ent_t *ent,
/* This function handle the +user entrys in /etc/shadow */
static enum nss_status
getspnam_plususer (const char *name, struct spwd *result, char *buffer,
- size_t buflen)
+ size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
struct spwd pwd;
@@ -661,7 +668,7 @@ getspnam_plususer (const char *name, struct spwd *result, char *buffer,
plen = spwd_need_buflen (&pwd);
if (plen > buflen)
{
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
p = buffer + (buflen - plen);
@@ -681,10 +688,12 @@ getspnam_plususer (const char *name, struct spwd *result, char *buffer,
nis_freeresult (res);
return status;
}
- if ((parse_res = _nss_nisplus_parse_spent (res, result, buffer,
- buflen)) == -1)
+ parse_res = _nss_nisplus_parse_spent (res, result, buffer,
+ buflen, errnop);
+ if (parse_res == -1)
{
nis_freeresult (res);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
nis_freeresult (res);
@@ -695,24 +704,27 @@ getspnam_plususer (const char *name, struct spwd *result, char *buffer,
int outvallen;
if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
if (yp_match (domain, "shadow.byname", name, strlen (name),
&outval, &outvallen)
!= YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
ptr = strncpy (buffer, outval, buflen < (size_t) outvallen ?
buflen : (size_t) outvallen);
buffer[buflen < (size_t) outvallen ? buflen : (size_t) outvallen] = '\0';
free (outval);
while (isspace (*ptr))
ptr++;
- if ((parse_res = _nss_files_parse_spent (ptr, result, data, buflen))
- == -1)
- {
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
+ parse_res = _nss_files_parse_spent (ptr, result, data, buflen, errnop);
+ if (parse_res == -1)
+ return NSS_STATUS_TRYAGAIN;
}
if (parse_res)
@@ -733,7 +745,7 @@ getspnam_plususer (const char *name, struct spwd *result, char *buffer,
static enum nss_status
getspent_next_file (struct spwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
while (1)
@@ -760,13 +772,13 @@ getspent_next_file (struct spwd *result, ent_t *ent,
/* Parse the line. If it is invalid, loop to
get the next line of the file to parse. */
|| !(parse_res = _nss_files_parse_spent (p, result, data,
- buflen)));
+ buflen, errnop)));
if (parse_res == -1)
{
/* The parser ran out of space. */
fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
@@ -778,6 +790,7 @@ getspent_next_file (struct spwd *result, ent_t *ent,
if (result->sp_namp[0] == '-' && result->sp_namp[1] == '@'
&& result->sp_namp[2] != '\0')
{
+ /* XXX Do not use fixed length buffers. */
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
@@ -785,7 +798,8 @@ getspent_next_file (struct spwd *result, ent_t *ent,
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->sp_namp[2], &netgrdata);
while (__internal_getnetgrent_r (&host, &user, &domain,
- &netgrdata, buf2, sizeof (buf2)))
+ &netgrdata, buf2, sizeof (buf2),
+ errnop))
{
if (user != NULL && user[0] != '-')
blacklist_store_name (user, ent);
@@ -807,11 +821,11 @@ getspent_next_file (struct spwd *result, ent_t *ent,
if (use_nisplus)
status = getspent_next_nisplus_netgr (NULL, result, ent,
&result->sp_namp[2],
- buffer, buflen);
+ buffer, buflen, errnop);
else
status = getspent_next_nis_netgr (NULL, result, ent,
&result->sp_namp[2],
- buffer, buflen);
+ buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN)
continue;
else
@@ -836,14 +850,21 @@ getspent_next_file (struct spwd *result, ent_t *ent,
/etc/passwd */
blacklist_store_name (&result->sp_namp[1], ent);
status = getspnam_plususer (&result->sp_namp[1], result, buffer,
- buflen);
+ buflen, errnop);
if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
break;
else
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
continue;
else
- return status;
+ {
+ if (status == NSS_STATUS_TRYAGAIN)
+ {
+ fsetpos (ent->stream, &pos);
+ *errnop = ERANGE;
+ }
+ return status;
+ }
}
/* +:... */
@@ -854,9 +875,9 @@ getspent_next_file (struct spwd *result, ent_t *ent,
copy_spwd_changes (&ent->pwd, result, NULL, 0);
if (use_nisplus)
- return getspent_next_nisplus (result, ent, buffer, buflen);
+ return getspent_next_nisplus (result, ent, buffer, buflen, errnop);
else
- return getspent_next_nis (result, ent, buffer, buflen);
+ return getspent_next_nis (result, ent, buffer, buflen, errnop);
}
}
@@ -866,7 +887,7 @@ getspent_next_file (struct spwd *result, ent_t *ent,
static enum nss_status
internal_getspent_r (struct spwd *pw, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
if (ent->netgroup)
{
@@ -876,11 +897,12 @@ internal_getspent_r (struct spwd *pw, ent_t *ent,
/* Since this is not the first call, we don't need the group name */
if (use_nisplus)
status = getspent_next_nisplus_netgr (NULL, pw, ent, NULL, buffer,
- buflen);
+ buflen, errnop);
else
- status = getspent_next_nis_netgr (NULL, pw, ent, NULL, buffer, buflen);
+ status = getspent_next_nis_netgr (NULL, pw, ent, NULL, buffer, buflen,
+ errnop);
if (status == NSS_STATUS_RETURN)
- return getspent_next_file (pw, ent, buffer, buflen);
+ return getspent_next_file (pw, ent, buffer, buflen, errnop);
else
return status;
}
@@ -888,16 +910,17 @@ internal_getspent_r (struct spwd *pw, ent_t *ent,
if (ent->nis)
{
if (use_nisplus)
- return getspent_next_nisplus (pw, ent, buffer, buflen);
+ return getspent_next_nisplus (pw, ent, buffer, buflen, errnop);
else
- return getspent_next_nis (pw, ent, buffer, buflen);
+ return getspent_next_nis (pw, ent, buffer, buflen, errnop);
}
else
- return getspent_next_file (pw, ent, buffer, buflen);
+ return getspent_next_file (pw, ent, buffer, buflen, errnop);
}
enum nss_status
-_nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen)
+_nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen,
+ int *errnop)
{
enum nss_status status = NSS_STATUS_SUCCESS;
@@ -914,7 +937,7 @@ _nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen)
status = internal_setspent (&ext_ent);
if (status == NSS_STATUS_SUCCESS)
- status = internal_getspent_r (pwd, &ext_ent, buffer, buflen);
+ status = internal_getspent_r (pwd, &ext_ent, buffer, buflen, errnop);
__libc_lock_unlock (lock);
@@ -924,7 +947,7 @@ _nss_compat_getspent_r (struct spwd *pwd, char *buffer, size_t buflen)
/* Searches in /etc/passwd and the NIS/NIS+ map for a special user */
static enum nss_status
internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
struct parser_data *data = (void *) buffer;
@@ -951,13 +974,14 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines. */
/* Parse the line. If it is invalid, loop to
get the next line of the file to parse. */
- !(parse_res = _nss_files_parse_spent (p, result, data, buflen)));
+ !(parse_res = _nss_files_parse_spent (p, result, data, buflen,
+ errnop)));
if (parse_res == -1)
{
/* The parser ran out of space. */
fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
+ *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
@@ -974,14 +998,15 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
if (result->sp_namp[0] == '-' && result->sp_namp[1] == '@'
&& result->sp_namp[2] != '\0')
{
+ /* XXX Do not use fixed length buffers. */
char buf2[1024];
char *user, *host, *domain;
struct __netgrent netgrdata;
bzero (&netgrdata, sizeof (struct __netgrent));
__internal_setnetgrent (&result->sp_namp[2], &netgrdata);
- while (__internal_getnetgrent_r (&host, &user, &domain,
- &netgrdata, buf2, sizeof (buf2)))
+ while (__internal_getnetgrent_r (&host, &user, &domain, &netgrdata,
+ buf2, sizeof (buf2), errnop))
{
if (user != NULL && user[0] != '-')
if (strcmp (user, name) == 0)
@@ -995,10 +1020,9 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
if (result->sp_namp[0] == '+' && result->sp_namp[1] == '@'
&& result->sp_namp[2] != '\0')
{
- char buf[strlen (result->sp_namp)];
+ char *buf = strdupa (&result->sp_namp[2]);
int status;
- strcpy (buf, &result->sp_namp[2]);
ent->netgroup = TRUE;
ent->first = TRUE;
copy_spwd_changes (&ent->pwd, result, NULL, 0);
@@ -1007,15 +1031,15 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
{
if (use_nisplus)
status = getspent_next_nisplus_netgr (name, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
else
status = getspent_next_nis_netgr (name, result, ent, buf,
- buffer, buflen);
+ buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN)
continue;
- if (status == NSS_STATUS_SUCCESS &&
- strcmp (result->sp_namp, name) == 0)
+ if (status == NSS_STATUS_SUCCESS
+ && strcmp (result->sp_namp, name) == 0)
return NSS_STATUS_SUCCESS;
} while (status == NSS_STATUS_SUCCESS);
continue;
@@ -1039,7 +1063,8 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
{
enum nss_status status;
- status = getspnam_plususer (name, result, buffer, buflen);
+ status = getspnam_plususer (name, result, buffer, buflen,
+ errnop);
if (status == NSS_STATUS_RETURN)
/* We couldn't parse the entry */
return NSS_STATUS_NOTFOUND;
@@ -1053,7 +1078,7 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
{
enum nss_status status;
- status = getspnam_plususer (name, result, buffer, buflen);
+ status = getspnam_plususer (name, result, buffer, buflen, errnop);
if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
return NSS_STATUS_NOTFOUND;
else
@@ -1065,7 +1090,7 @@ internal_getspnam_r (const char *name, struct spwd *result, ent_t *ent,
enum nss_status
_nss_compat_getspnam_r (const char *name, struct spwd *pwd,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
ent_t ent = {0, 0, 0, NULL, 0, NULL, NULL, {NULL, 0, 0},
{NULL, NULL, 0, 0, 0, 0, 0, 0, 0}};
@@ -1084,7 +1109,7 @@ _nss_compat_getspnam_r (const char *name, struct spwd *pwd,
if (status != NSS_STATUS_SUCCESS)
return status;
- status = internal_getspnam_r (name, pwd, &ent, buffer, buflen);
+ status = internal_getspnam_r (name, pwd, &ent, buffer, buflen, errnop);
internal_endspent (&ent);
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-27 23:33:24 +0000