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authorEric Andersen <andersen@codepoet.org>2003-10-10 07:34:27 +0000
committerEric Andersen <andersen@codepoet.org>2003-10-10 07:34:27 +0000
commit56104838733c81ba410ac41f767ac72267049489 (patch)
tree54057d78cdae893235b86787a735629396d857a5 /libc/pwd_grp/__getgrent.c
parent61011662018fa98c4610c1ae826e417678cd5c80 (diff)
Implement getgrgid_r and getgrnam_r. Rework group handling code to be fully
reentrant, since there was still a shared static value. indent stuff,
Diffstat (limited to 'libc/pwd_grp/__getgrent.c')
-rw-r--r--libc/pwd_grp/__getgrent.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/libc/pwd_grp/__getgrent.c b/libc/pwd_grp/__getgrent.c
deleted file mode 100644
index ad0b8beb5..000000000
--- a/libc/pwd_grp/__getgrent.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * __getgrent.c - This file is part of the libc-8086/grp package for ELKS,
- * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
- *
- * This 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.
- *
- * This 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 this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <features.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include "config.h"
-
-
-#ifdef __UCLIBC_HAS_THREADS__
-#include <pthread.h>
-/* This function should always be called under lock, so we
- * do not lock things in here... */
-pthread_mutex_t __getgrent_lock = PTHREAD_MUTEX_INITIALIZER;
-#endif
-
-/*
- * This is the core group-file read function. It behaves exactly like
- * getgrent() except that it is passed a file descriptor. getgrent()
- * is just a wrapper for this function.
- */
-struct group *__getgrent(int grp_fd, char *line_buff, char **members)
-{
- short line_index;
- short buff_size;
- static struct group group;
- register char *ptr;
- char *field_begin;
- short member_num;
- char *endptr;
- int line_len;
-
-
- /* We use the restart label to handle malformatted lines */
-restart:
- line_index = 0;
- buff_size = 256;
-
- line_buff = realloc(line_buff, buff_size);
- while (1) {
- if ((line_len = read(grp_fd, line_buff + line_index,
- buff_size - line_index)) <= 0) {
- return NULL;
- }
- field_begin = strchr(line_buff, '\n');
- if (field_begin != NULL) {
- lseek(grp_fd,
- (long) (1 + field_begin -
- (line_len + line_index + line_buff)), SEEK_CUR);
- *field_begin = '\0';
- if (*line_buff == '#' || *line_buff == ' '
- || *line_buff == '\n' || *line_buff == '\t')
- goto restart;
- break;
- } else { /* Allocate some more space */
-
- line_index = buff_size;
- buff_size += 256;
- line_buff = realloc(line_buff, buff_size);
- }
- }
-
- /* Now parse the line */
- group.gr_name = line_buff;
- ptr = strchr(line_buff, ':');
- if (ptr == NULL)
- goto restart;
- *ptr++ = '\0';
-
- group.gr_passwd = ptr;
- ptr = strchr(ptr, ':');
- if (ptr == NULL)
- goto restart;
- *ptr++ = '\0';
-
- field_begin = ptr;
- ptr = strchr(ptr, ':');
- if (ptr == NULL)
- goto restart;
- *ptr++ = '\0';
-
- group.gr_gid = (__gid_t) strtoul(field_begin, &endptr, 10);
- if (*endptr != '\0')
- goto restart;
-
- member_num = 0;
- field_begin = ptr;
-
- if (members != NULL)
- free(members);
- members = (char **) malloc((member_num + 1) * sizeof(char *));
- for ( ; field_begin && *field_begin != '\0'; field_begin = ptr) {
- if ((ptr = strchr(field_begin, ',')) != NULL)
- *ptr++ = '\0';
- members[member_num++] = field_begin;
- members = (char **) realloc(members,
- (member_num + 1) * sizeof(char *));
- }
- members[member_num] = NULL;
-
- group.gr_mem = members;
- return &group;
-}