diff options
Diffstat (limited to 'grp/fgetgrent.c')
-rw-r--r-- | grp/fgetgrent.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/grp/fgetgrent.c b/grp/fgetgrent.c deleted file mode 100644 index 2e7c7fe5fb..0000000000 --- a/grp/fgetgrent.c +++ /dev/null @@ -1,87 +0,0 @@ -/* Copyright (C) 1991-2023 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <grp.h> -#include <libc-lock.h> -#include <stdio.h> -#include <stdlib.h> -#include <set-freeres.h> - - -/* We need to protect the dynamic buffer handling. */ -__libc_lock_define_initialized (static, lock); - -static char *buffer; - -/* Read one entry from the given stream. */ -struct group * -fgetgrent (FILE *stream) -{ - static size_t buffer_size; - static struct group resbuf; - fpos_t pos; - struct group *result; - int save; - - if (__builtin_expect (fgetpos (stream, &pos), 0) != 0) - return NULL; - - /* Get lock. */ - __libc_lock_lock (lock); - - /* Allocate buffer if not yet available. */ - if (buffer == NULL) - { - buffer_size = NSS_BUFLEN_GROUP; - buffer = malloc (buffer_size); - } - - while (buffer != NULL - && (__fgetgrent_r (stream, &resbuf, buffer, buffer_size, &result) - == ERANGE)) - { - char *new_buf; - buffer_size += NSS_BUFLEN_GROUP; - new_buf = realloc (buffer, buffer_size); - if (__glibc_unlikely (new_buf == NULL)) - { - /* We are out of memory. Free the current buffer so that the - process gets a chance for a normal termination. */ - save = errno; - free (buffer); - __set_errno (save); - } - buffer = new_buf; - - /* Reset the stream. */ - if (fsetpos (stream, &pos) != 0) - buffer = NULL; - } - - if (buffer == NULL) - result = NULL; - - /* Release lock. Preserve error value. */ - save = errno; - __libc_lock_unlock (lock); - __set_errno (save); - - return result; -} - -weak_alias (buffer, __libc_fgetgrent_freemem_ptr) |