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Diffstat (limited to 'grp/initgroups.c')
-rw-r--r--grp/initgroups.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/grp/initgroups.c b/grp/initgroups.c
index a700557924..73c15c6479 100644
--- a/grp/initgroups.c
+++ b/grp/initgroups.c
@@ -16,7 +16,7 @@ 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 <alloca.h>
#include <unistd.h>
#include <string.h>
#include <grp.h>
@@ -28,8 +28,9 @@ Cambridge, MA 02139, USA. */
by reading the group database and using all groups
of which USER is a member. Also include GROUP. */
int
-DEFUN(initgroups, (user, group),
- CONST char *user AND gid_t group)
+initgroups (user, group)
+ const char *user;
+ gid_t group;
{
#if defined (NGROUPS_MAX) && NGROUPS_MAX == 0
@@ -40,21 +41,23 @@ DEFUN(initgroups, (user, group),
struct group *g;
register size_t n;
+ size_t ngroups;
+ gid_t *groups;
#ifdef NGROUPS_MAX
- gid_t groups[NGROUPS_MAX];
+# define limit NGROUPS_MAX
+
+ ngroups = limit;
#else
long int limit = sysconf (_SC_NGROUPS_MAX);
- gid_t *groups;
- size_t ngroups;
if (limit > 0)
ngroups = limit;
else
/* No fixed limit on groups. Pick a starting buffer size. */
ngroups = 16;
+#endif
groups = __alloca (ngroups * sizeof *groups);
-#endif
setgrent ();