diff options
Diffstat (limited to 'grp/grpread.c')
-rw-r--r-- | grp/grpread.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/grp/grpread.c b/grp/grpread.c deleted file mode 100644 index 1fed32f2e3..0000000000 --- a/grp/grpread.c +++ /dev/null @@ -1,166 +0,0 @@ -/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc. -This file is part of the GNU C Library. - -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., 675 Mass Ave, -Cambridge, MA 02139, USA. */ - -#include <ansidecl.h> -#include <errno.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <grp.h> - -/* This is the function that all the others are based on. - The format of the group file is known only here. */ - -/* Structure containing info kept by each __grpread caller. */ -typedef struct - { - char *buf; - size_t buflen; - size_t max_members; - char **members; - struct group g; - } grpread_info; - - -/* Return a chunk of memory containing a pre-initialized `grpread_info'. */ -PTR -DEFUN_VOID(__grpalloc) -{ - grpread_info *info = (PTR) malloc (sizeof(grpread_info)); - if (info == NULL) - return NULL; - - info->buf = NULL; - info->buflen = 0; - - info->max_members = 5; - info->members = (char **) malloc (5 * sizeof(char *)); - if (info->members == NULL) - { - free ((PTR) info); - return NULL; - } - - return info; -} - -/* Read a group entry from STREAM, filling in G. */ -struct group * -DEFUN(__grpread, (stream, g), FILE *stream AND PTR CONST g) -{ - register grpread_info *CONST info = (grpread_info *) g; - char *start, *end; - register size_t i; - - /* Idiocy checks. */ - if (stream == NULL) - { - errno = EINVAL; - return NULL; - } - - do - if (__getline (&info->buf, &info->buflen, stream) == -1) - return NULL; - while (info->buf[0] == '#'); - - start = info->buf; - end = strchr (start, ':'); - if (end == NULL) - return NULL; - *end = '\0'; - info->g.gr_name = start; - - start = end + 1; - end = strchr (start, ':'); - if (end == NULL) - return NULL; - *end = '\0'; - info->g.gr_passwd = start; - - info->g.gr_gid = (gid_t) strtol (end + 1, &end, 10); - if (*end != ':') - return NULL; - - i = 0; - do - { - start = end + 1; - end = strchr (start, ','); - if (end == NULL) - { - end = strchr (start, '\n'); - if (end == start) - break; - if (end == NULL) - return NULL; - *end = '\0'; - end = NULL; - } - else - *end = '\0'; - - if (i == info->max_members - 2) - { - info->max_members += 5; - info->members = (char **) - realloc ((PTR) info->members, info->max_members * sizeof (char *)); - if (info->members == NULL) - return NULL; - } - - info->members[i++] = start; - } while (end != NULL); - info->members[i] = NULL; - info->g.gr_mem = info->members; - - return &info->g; -} - - -struct group * -__grpscan (void **info, int (*selector) (struct group *)) -{ - FILE *stream; - struct group *p; - - if (*info == NULL) - { - *info = __grpalloc (); - if (info == NULL) - return NULL; - } - - stream = __grpopen (); - if (stream == NULL) - return NULL; - - p = NULL; - while (! feof (stream)) - { - p = __grpread (stream, *info); - if (p && (*selector) (p)) - break; - p = NULL; - } - - (void) fclose (stream); - return p; -} |