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-rw-r--r--glibc-compat/nss_compat/compat-grp.c769
1 files changed, 0 insertions, 769 deletions
diff --git a/glibc-compat/nss_compat/compat-grp.c b/glibc-compat/nss_compat/compat-grp.c
deleted file mode 100644
index d0780c4081..0000000000
--- a/glibc-compat/nss_compat/compat-grp.c
+++ /dev/null
@@ -1,769 +0,0 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <nss.h>
-#include <glibc-compat/include/grp.h>
-#include <ctype.h>
-#include <bits/libc-lock.h>
-#include <string.h>
-#include <rpcsvc/yp.h>
-#include <rpcsvc/ypclnt.h>
-#include <nsswitch.h>
-
-/* Get the declaration of the parser function. */
-#define ENTNAME grent
-#define STRUCTURE group
-#define EXTERN_PARSER
-#include "../nss_files/files-parse.c"
-
-/* Structure for remembering -group members ... */
-#define BLACKLIST_INITIAL_SIZE 512
-#define BLACKLIST_INCREMENT 256
-struct blacklist_t
- {
- char *data;
- int current;
- int size;
- };
-
-struct ent_t
- {
- bool_t nis;
- bool_t nis_first;
- char *oldkey;
- int oldkeylen;
- FILE *stream;
- struct blacklist_t blacklist;
-};
-typedef struct ent_t ent_t;
-
-static ent_t ext_ent = {0, 0, NULL, 0, NULL, {NULL, 0, 0}};
-
-/* Protect global state against multiple changers. */
-__libc_lock_define_initialized (static, lock)
-
-/* Prototypes for local functions. */
-static void blacklist_store_name (const char *, ent_t *);
-static int in_blacklist (const char *, int, ent_t *);
-
-static enum nss_status
-internal_setgrent (ent_t *ent)
-{
- enum nss_status status = NSS_STATUS_SUCCESS;
-
- ent->nis = ent->nis_first = 0;
-
- if (ent->oldkey != NULL)
- {
- free (ent->oldkey);
- ent->oldkey = NULL;
- ent->oldkeylen = 0;
- }
-
- if (ent->blacklist.data != NULL)
- {
- ent->blacklist.current = 1;
- ent->blacklist.data[0] = '|';
- ent->blacklist.data[1] = '\0';
- }
- else
- ent->blacklist.current = 0;
-
- if (ent->stream == NULL)
- {
- ent->stream = fopen ("/etc/group", "r");
-
- if (ent->stream == NULL)
- status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
- else
- {
- /* We have to make sure the file is `closed on exec'. */
- int result, flags;
-
- result = flags = fcntl (fileno (ent->stream), F_GETFD, 0);
- if (result >= 0)
- {
- flags |= FD_CLOEXEC;
- result = fcntl (fileno (ent->stream), F_SETFD, flags);
- }
- if (result < 0)
- {
- /* Something went wrong. Close the stream and return a
- failure. */
- fclose (ent->stream);
- ent->stream = NULL;
- status = NSS_STATUS_UNAVAIL;
- }
- }
- }
- else
- rewind (ent->stream);
-
- return status;
-}
-
-
-enum nss_status
-_nss_compat_setgrent (void)
-{
- enum nss_status result;
-
- __libc_lock_lock (lock);
-
- result = internal_setgrent (&ext_ent);
-
- __libc_lock_unlock (lock);
-
- return result;
-}
-
-
-static enum nss_status
-internal_endgrent (ent_t *ent)
-{
- if (ent->stream != NULL)
- {
- fclose (ent->stream);
- ent->stream = NULL;
- }
-
- ent->nis = ent->nis_first = 0;
-
- if (ent->oldkey != NULL)
- {
- free (ent->oldkey);
- ent->oldkey = NULL;
- ent->oldkeylen = 0;
- }
-
- if (ent->blacklist.data != NULL)
- {
- ent->blacklist.current = 1;
- ent->blacklist.data[0] = '|';
- ent->blacklist.data[1] = '\0';
- }
- else
- ent->blacklist.current = 0;
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_compat_endgrent (void)
-{
- enum nss_status result;
-
- __libc_lock_lock (lock);
-
- result = internal_endgrent (&ext_ent);
-
- __libc_lock_unlock (lock);
-
- return result;
-}
-
-static enum nss_status
-getgrent_next_nis (struct group *result, ent_t *ent, char *buffer,
- size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- char *domain;
- char *outkey, *outval;
- int outkeylen, outvallen, parse_res;
- char *p;
-
- if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- {
- ent->nis = 0;
- return NSS_STATUS_NOTFOUND;
- }
-
- do
- {
- char *save_oldkey;
- int save_oldlen;
- bool_t save_nis_first;
-
- if (ent->nis_first)
- {
- if (yp_first (domain, "group.byname", &outkey, &outkeylen,
- &outval, &outvallen) != YPERR_SUCCESS)
- {
- ent->nis = 0;
- return NSS_STATUS_UNAVAIL;
- }
- save_oldkey = ent->oldkey;
- save_oldlen = ent->oldkeylen;
- save_nis_first = TRUE;
- ent->oldkey = outkey;
- ent->oldkeylen = outkeylen;
- ent->nis_first = FALSE;
- }
- else
- {
- if (yp_next (domain, "group.byname", ent->oldkey, ent->oldkeylen,
- &outkey, &outkeylen, &outval, &outvallen)
- != YPERR_SUCCESS)
- {
- ent->nis = 0;
- return NSS_STATUS_NOTFOUND;
- }
-
- save_oldkey = ent->oldkey;
- save_oldlen = ent->oldkeylen;
- save_nis_first = FALSE;
- ent->oldkey = outkey;
- ent->oldkeylen = outkeylen;
- }
-
- /* Copy the found data to our buffer */
- p = strncpy (buffer, outval, buflen);
-
- /* ...and free the data. */
- free (outval);
-
- while (isspace (*p))
- ++p;
-
- if ((parse_res = _nss_files_parse_grent (p, result, data, buflen)) == -1)
- {
- free (ent->oldkey);
- ent->oldkey = save_oldkey;
- ent->oldkeylen = save_oldlen;
- ent->nis_first = save_nis_first;
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- if (!save_nis_first)
- free (save_oldkey);
- }
-
- if (parse_res &&
- in_blacklist (result->gr_name, strlen (result->gr_name), ent))
- parse_res = 0; /* if result->gr_name in blacklist,search next entry */
- }
- while (!parse_res);
-
- return NSS_STATUS_SUCCESS;
-}
-
-/* This function handle the +group entrys in /etc/group */
-static enum nss_status
-getgrnam_plusgroup (const char *name, struct group *result, char *buffer,
- size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- int parse_res;
- char *domain, *outval, *p;
- int outvallen;
-
- if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- return NSS_STATUS_NOTFOUND;
-
- if (yp_match (domain, "group.byname", name, strlen (name),
- &outval, &outvallen) != YPERR_SUCCESS)
- return NSS_STATUS_NOTFOUND;
- p = strncpy (buffer, outval,
- buflen < (size_t) outvallen ? buflen : (size_t) outvallen);
- free (outval);
- while (isspace (*p))
- p++;
- if ((parse_res = _nss_files_parse_grent (p, result, data, buflen)) == -1)
- {
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- if (parse_res)
- /* We found the entry. */
- return NSS_STATUS_SUCCESS;
- else
- return NSS_STATUS_RETURN;
-}
-
-static enum nss_status
-getgrent_next_file (struct group *result, ent_t *ent,
- char *buffer, size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- while (1)
- {
- fpos_t pos;
- int parse_res = 0;
- char *p;
-
- do
- {
- fgetpos (ent->stream, &pos);
- buffer[buflen - 1] = '\xff';
- p = fgets (buffer, buflen, ent->stream);
- if (p == NULL && feof (ent->stream))
- return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
- {
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- /* Terminate the line for any case. */
- buffer[buflen - 1] = '\0';
-
- /* Skip leading blanks. */
- while (isspace (*p))
- ++p;
- }
- 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_grent (p, result, data, buflen)));
-
- if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
- /* This is a real entry. */
- break;
-
- /* -group */
- if (result->gr_name[0] == '-' && result->gr_name[1] != '\0'
- && result->gr_name[1] != '@')
- {
- blacklist_store_name (&result->gr_name[1], ent);
- continue;
- }
-
- /* +group */
- if (result->gr_name[0] == '+' && result->gr_name[1] != '\0'
- && result->gr_name[1] != '@')
- {
- enum nss_status status;
-
- /* Store the group in the blacklist for the "+" at the end of
- /etc/group */
- blacklist_store_name (&result->gr_name[1], ent);
- status = getgrnam_plusgroup (&result->gr_name[1], result, buffer,
- buflen);
- if (status == NSS_STATUS_SUCCESS) /* We found the entry. */
- break;
- else
- if (status == NSS_STATUS_RETURN /* We couldn't parse the entry */
- || status == NSS_STATUS_NOTFOUND) /* No group in NIS */
- continue;
- else
- {
- if (status == NSS_STATUS_TRYAGAIN)
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- return status;
- }
- }
-
- /* +:... */
- if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
- {
- ent->nis = TRUE;
- ent->nis_first = TRUE;
-
- return getgrent_next_nis (result, ent, buffer, buflen);
- }
- }
-
- return NSS_STATUS_SUCCESS;
-}
-
-
-static enum nss_status
-internal_getgrent_r (struct group *gr, ent_t *ent, char *buffer,
- size_t buflen)
-{
- if (ent->nis)
- {
- return getgrent_next_nis (gr, ent, buffer, buflen);
- }
- else
- return getgrent_next_file (gr, ent, buffer, buflen);
-}
-
-enum nss_status
-_nss_compat_getgrent_r (struct group *grp, char *buffer, size_t buflen)
-{
- enum nss_status status = NSS_STATUS_SUCCESS;
-
- __libc_lock_lock (lock);
-
- /* Be prepared that the setgrent function was not called before. */
- if (ext_ent.stream == NULL)
- status = internal_setgrent (&ext_ent);
-
- if (status == NSS_STATUS_SUCCESS)
- status = internal_getgrent_r (grp, &ext_ent, buffer, buflen);
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-/* Searches in /etc/group and the NIS/NIS+ map for a special group */
-static enum nss_status
-internal_getgrnam_r (const char *name, struct group *result, ent_t *ent,
- char *buffer, size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- while (1)
- {
- fpos_t pos;
- int parse_res = 0;
- char *p;
-
- do
- {
- fgetpos (ent->stream, &pos);
- buffer[buflen - 1] = '\xff';
- p = fgets (buffer, buflen, ent->stream);
- if (p == NULL && feof (ent->stream))
- return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
- {
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- /* Terminate the line for any case. */
- buffer[buflen - 1] = '\0';
-
- /* Skip leading blanks. */
- while (isspace (*p))
- ++p;
- }
- 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_grent (p, result, data, buflen)));
-
- if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- /* This is a real entry. */
- if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
- {
- if (strcmp (result->gr_name, name) == 0)
- return NSS_STATUS_SUCCESS;
- else
- continue;
- }
-
- /* -group */
- if (result->gr_name[0] == '-' && result->gr_name[1] != '\0')
- {
- if (strcmp (&result->gr_name[1], name) == 0)
- return NSS_STATUS_NOTFOUND;
- else
- continue;
- }
-
- /* +group */
- if (result->gr_name[0] == '+' && result->gr_name[1] != '\0')
- {
- if (strcmp (name, &result->gr_name[1]) == 0)
- {
- enum nss_status status;
-
- status = getgrnam_plusgroup (name, result, buffer, buflen);
- if (status == NSS_STATUS_RETURN)
- /* We couldn't parse the entry */
- continue;
- else
- return status;
- }
- }
- /* +:... */
- if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
- {
- enum nss_status status;
-
- status = getgrnam_plusgroup (name, result, buffer, buflen);
- if (status == NSS_STATUS_RETURN)
- /* We couldn't parse the entry */
- continue;
- else
- return status;
- }
- }
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_compat_getgrnam_r (const char *name, struct group *grp,
- char *buffer, size_t buflen)
-{
- ent_t ent = {0, 0, NULL, 0, NULL, {NULL, 0, 0}};
- enum nss_status status;
-
- if (name[0] == '-' || name[0] == '+')
- return NSS_STATUS_NOTFOUND;
-
- __libc_lock_lock (lock);
-
- status = internal_setgrent (&ent);
-
- __libc_lock_unlock (lock);
-
- if (status != NSS_STATUS_SUCCESS)
- return status;
-
- status = internal_getgrnam_r (name, grp, &ent, buffer, buflen);
-
- internal_endgrent (&ent);
-
- return status;
-}
-
-/* This function handle the + entry in /etc/group */
-static enum nss_status
-getgrgid_plusgroup (gid_t gid, struct group *result, char *buffer,
- size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- int parse_res;
- char buf[1024];
- char *domain, *outval, *p;
- int outvallen;
-
- if (yp_get_default_domain (&domain) != YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
-
- snprintf (buf, sizeof (buf), "%d", gid);
-
- if (yp_match (domain, "group.bygid", buf, strlen (buf),
- &outval, &outvallen) != YPERR_SUCCESS)
- return NSS_STATUS_TRYAGAIN;
- p = strncpy (buffer, outval,
- buflen < (size_t) outvallen ? buflen : (size_t) outvallen);
- free (outval);
- while (isspace (*p))
- p++;
- if ((parse_res = _nss_files_parse_grent (p, result, data, buflen)) == -1)
- {
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- if (parse_res)
- /* We found the entry. */
- return NSS_STATUS_SUCCESS;
- else
- return NSS_STATUS_RETURN;
-}
-
-/* Searches in /etc/group and the NIS/NIS+ map for a special group id */
-static enum nss_status
-internal_getgrgid_r (gid_t gid, struct group *result, ent_t *ent,
- char *buffer, size_t buflen)
-{
- struct parser_data *data = (void *) buffer;
- while (1)
- {
- fpos_t pos;
- int parse_res = 0;
- char *p;
-
- do
- {
- fgetpos (ent->stream, &pos);
- buffer[buflen - 1] = '\xff';
- p = fgets (buffer, buflen, ent->stream);
- if (p == NULL && feof (ent->stream))
- return NSS_STATUS_NOTFOUND;
- if (p == NULL || buffer[buflen - 1] != '\xff')
- {
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- /* Terminate the line for any case. */
- buffer[buflen - 1] = '\0';
-
- /* Skip leading blanks. */
- while (isspace (*p))
- ++p;
- }
- 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_grent (p, result, data, buflen)));
-
- if (parse_res == -1)
- {
- /* The parser ran out of space. */
- fsetpos (ent->stream, &pos);
- __set_errno (ERANGE);
- return NSS_STATUS_TRYAGAIN;
- }
-
- /* This is a real entry. */
- if (result->gr_name[0] != '+' && result->gr_name[0] != '-')
- {
- if (result->gr_gid == gid)
- return NSS_STATUS_SUCCESS;
- else
- continue;
- }
-
- /* -group */
- if (result->gr_name[0] == '-' && result->gr_name[1] != '\0')
- {
- blacklist_store_name (&result->gr_name[1], ent);
- continue;
- }
-
- /* +group */
- if (result->gr_name[0] == '+' && result->gr_name[1] != '\0')
- {
- enum nss_status status;
-
- /* Store the group in the blacklist for the "+" at the end of
- /etc/group */
- blacklist_store_name (&result->gr_name[1], ent);
- status = getgrnam_plusgroup (&result->gr_name[1], result, buffer,
- buflen);
- if (status == NSS_STATUS_SUCCESS && result->gr_gid == gid)
- break;
- else
- continue;
- }
- /* +:... */
- if (result->gr_name[0] == '+' && result->gr_name[1] == '\0')
- {
- enum nss_status status;
-
- status = getgrgid_plusgroup (gid, result, buffer, buflen);
- if (status == NSS_STATUS_RETURN) /* We couldn't parse the entry */
- return NSS_STATUS_NOTFOUND;
- else
- return status;
- }
- }
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_compat_getgrgid_r (gid_t gid, struct group *grp,
- char *buffer, size_t buflen)
-{
- ent_t ent = {0, 0, NULL, 0, NULL, {NULL, 0, 0}};
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_setgrent (&ent);
-
- __libc_lock_unlock (lock);
-
- if (status != NSS_STATUS_SUCCESS)
- return status;
-
- status = internal_getgrgid_r (gid, grp, &ent, buffer, buflen);
-
- internal_endgrent (&ent);
-
- return status;
-}
-
-
-/* Support routines for remembering -@netgroup and -user entries.
- The names are stored in a single string with `|' as separator. */
-static void
-blacklist_store_name (const char *name, ent_t *ent)
-{
- int namelen = strlen (name);
- char *tmp;
-
- /* first call, setup cache */
- if (ent->blacklist.size == 0)
- {
- ent->blacklist.size = MAX (BLACKLIST_INITIAL_SIZE, 2 * namelen);
- ent->blacklist.data = malloc (ent->blacklist.size);
- if (ent->blacklist.data == NULL)
- return;
- ent->blacklist.data[0] = '|';
- ent->blacklist.data[1] = '\0';
- ent->blacklist.current = 1;
- }
- else
- {
- if (in_blacklist (name, namelen, ent))
- return; /* no duplicates */
-
- if (ent->blacklist.current + namelen + 1 >= ent->blacklist.size)
- {
- ent->blacklist.size += MAX (BLACKLIST_INCREMENT, 2 * namelen);
- tmp = realloc (ent->blacklist.data, ent->blacklist.size);
- if (tmp == NULL)
- {
- free (ent->blacklist.data);
- ent->blacklist.size = 0;
- return;
- }
- ent->blacklist.data = tmp;
- }
- }
-
- tmp = stpcpy (ent->blacklist.data + ent->blacklist.current, name);
- *tmp++ = '|';
- *tmp = '\0';
- ent->blacklist.current += namelen + 1;
-
- return;
-}
-
-/* returns TRUE if ent->blacklist contains name, else FALSE */
-static bool_t
-in_blacklist (const char *name, int namelen, ent_t *ent)
-{
- char buf[namelen + 3];
- char *cp;
-
- if (ent->blacklist.data == NULL)
- return FALSE;
-
- buf[0] = '|';
- cp = stpcpy (&buf[1], name);
- *cp++= '|';
- *cp = '\0';
- return strstr (ent->blacklist.data, buf) != NULL;
-}
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