diff options
Diffstat (limited to 'gl')
| -rw-r--r-- | gl/lib/mgetgroups.c | 142 | ||||
| -rw-r--r-- | gl/lib/mgetgroups.h | 19 | ||||
| -rw-r--r-- | gl/m4/mgetgroups.m4 | 11 | ||||
| -rw-r--r-- | gl/modules/mgetgroups | 24 |
4 files changed, 0 insertions, 196 deletions
diff --git a/gl/lib/mgetgroups.c b/gl/lib/mgetgroups.c deleted file mode 100644 index 0ebc2be15..000000000 --- a/gl/lib/mgetgroups.c +++ /dev/null @@ -1,142 +0,0 @@ -/* mgetgroups.c -- return a list of the groups a user is in - - Copyright (C) 2007-2009 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -/* Extracted from coreutils' src/id.c. */ - -#include <config.h> - -#include "mgetgroups.h" - -#include <stdlib.h> -#include <unistd.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> -#if HAVE_GETGROUPLIST -# include <grp.h> -#endif -#include "getugroups.h" -#include "xalloc.h" - - -static GETGROUPS_T * -realloc_groupbuf (GETGROUPS_T *g, size_t num) -{ - if (xalloc_oversized (num, sizeof (*g))) - { - errno = ENOMEM; - return NULL; - } - - return realloc (g, num * sizeof (*g)); -} - -/* Like getugroups, but store the result in malloc'd storage. - Set *GROUPS to the malloc'd list of all group IDs of which USERNAME - is a member. If GID is not -1, store it first. GID should be the - group ID (pw_gid) obtained from getpwuid, in case USERNAME is not - listed in the groups database (e.g., /etc/groups). Upon failure, - don't modify *GROUPS, set errno, and return -1. Otherwise, return - the number of groups. */ - -int -mgetgroups (char const *username, gid_t gid, GETGROUPS_T **groups) -{ - int max_n_groups; - int ng; - GETGROUPS_T *g; - -#if HAVE_GETGROUPLIST - /* We prefer to use getgrouplist if available, because it has better - performance characteristics. - - In glibc 2.3.2, getgrouplist is buggy. If you pass a zero as the - length of the output buffer, getgrouplist will still write to the - buffer. Contrary to what some versions of the getgrouplist - manpage say, this doesn't happen with nonzero buffer sizes. - Therefore our usage here just avoids a zero sized buffer. */ - if (username) - { - enum { N_GROUPS_INIT = 10 }; - max_n_groups = N_GROUPS_INIT; - - g = realloc_groupbuf (NULL, max_n_groups); - if (g == NULL) - return -1; - - while (1) - { - GETGROUPS_T *h; - int last_n_groups = max_n_groups; - - /* getgrouplist updates max_n_groups to num required. */ - ng = getgrouplist (username, gid, g, &max_n_groups); - - /* Some systems (like Darwin) have a bug where they - never increase max_n_groups. */ - if (ng < 0 && last_n_groups == max_n_groups) - max_n_groups *= 2; - - if ((h = realloc_groupbuf (g, max_n_groups)) == NULL) - { - int saved_errno = errno; - free (g); - errno = saved_errno; - return -1; - } - g = h; - - if (0 <= ng) - { - *groups = g; - /* On success some systems just return 0 from getgrouplist, - so return max_n_groups rather than ng. */ - return max_n_groups; - } - } - } - /* else no username, so fall through and use getgroups. */ -#endif - - max_n_groups = (username - ? getugroups (0, NULL, username, gid) - : getgroups (0, NULL)); - - /* If we failed to count groups with NULL for a buffer, - try again with a non-NULL one, just in case. */ - if (max_n_groups < 0) - max_n_groups = 5; - - g = realloc_groupbuf (NULL, max_n_groups); - if (g == NULL) - return -1; - - ng = (username - ? getugroups (max_n_groups, g, username, gid) - : getgroups (max_n_groups, g)); - - if (ng < 0) - { - int saved_errno = errno; - free (g); - errno = saved_errno; - return -1; - } - - *groups = g; - return ng; -} diff --git a/gl/lib/mgetgroups.h b/gl/lib/mgetgroups.h deleted file mode 100644 index 4779fecf0..000000000 --- a/gl/lib/mgetgroups.h +++ /dev/null @@ -1,19 +0,0 @@ -/* Get a list of all group IDs associated with a specified user ID. - Copyright (C) 2007, 2009 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -#include <sys/types.h> - -int mgetgroups (const char *username, gid_t gid, GETGROUPS_T **groups); diff --git a/gl/m4/mgetgroups.m4 b/gl/m4/mgetgroups.m4 deleted file mode 100644 index 4b3f32828..000000000 --- a/gl/m4/mgetgroups.m4 +++ /dev/null @@ -1,11 +0,0 @@ -#serial 3 -dnl Copyright (C) 2007-2009 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -AC_DEFUN([gl_MGETGROUPS], -[ - AC_CHECK_FUNCS([getgrouplist]) - AC_LIBOBJ([mgetgroups]) -]) diff --git a/gl/modules/mgetgroups b/gl/modules/mgetgroups deleted file mode 100644 index 8bce53a56..000000000 --- a/gl/modules/mgetgroups +++ /dev/null @@ -1,24 +0,0 @@ -Description: -Return the group IDs of a user in malloc'd storage. - -Files: -lib/mgetgroups.c -lib/mgetgroups.h -m4/mgetgroups.m4 - -Depends-on: -getugroups -xalloc - -configure.ac: -gl_MGETGROUPS - -Makefile.am: - -Include: - -License: -LGPL - -Maintainer: -Jim Meyering |