diff options
Diffstat (limited to 'grp/initgroups.c')
| -rw-r--r-- | grp/initgroups.c | 17 |
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 (); |