diff options
Diffstat (limited to 'grp/initgroups.c')
| -rw-r--r-- | grp/initgroups.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/grp/initgroups.c b/grp/initgroups.c index 35af575..a659f0d 100644 --- a/grp/initgroups.c +++ b/grp/initgroups.c @@ -1,20 +1,20 @@ /* Copyright (C) 1989, 1991, 1993, 1996 Free Software Foundation, Inc. -This file is part of the GNU C Library. + 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 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. + 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. */ + 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 <alloca.h> #include <unistd.h> @@ -39,7 +39,9 @@ initgroups (user, group) #else - struct group *g; + struct group grpbuf, *g; + size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX); + char *tmpbuf; register size_t n; size_t ngroups; gid_t *groups; @@ -58,13 +60,14 @@ initgroups (user, group) #endif groups = __alloca (ngroups * sizeof *groups); + tmpbuf = __alloca (buflen); setgrent (); n = 0; groups[n++] = group; - while ((g = getgrent ()) != NULL) + while (__getgrent_r (&grpbuf, tmpbuf, buflen, &g) >= 0) if (g->gr_gid != group) { register char **m; |