Don't use NGROUPS_MAX define.

diff --git a/getgroups.c b/getgroups.c
index 8bb82f5..6a8fac2 100644 (file)
--- a/getgroups.c
+++ b/getgroups.c
@@ -26,21 +26,16 @@
 
 #include "rsync.h"
 
-#ifndef NGROUPS_MAX
-/* It ought to be defined, but just in case. */
-#  define NGROUPS_MAX 32
-#endif
-
 int
 main(UNUSED(int argc), UNUSED(char *argv[]))
 {
        int n, i;
-       gid_t list[NGROUPS_MAX];
+       gid_t *list;
        gid_t gid = MY_GID();
        int gid_in_list = 0;
 
 #ifdef HAVE_GETGROUPS
-       if ((n = getgroups(NGROUPS_MAX, list)) < 0) {
+       if ((n = getgroups(0, NULL)) < 0) {
                perror("getgroups");
                return 1;
        }
@@ -48,6 +43,17 @@ main(UNUSED(int argc), UNUSED(char *argv[]))
        n = 0;
 #endif
 
+       list = (gid_t*)malloc(sizeof (gid_t) * (n + 1));
+       if (!list) {
+               fprintf(stderr, "out of memory!\n");
+               exit(1);
+       }
+
+#ifdef HAVE_GETGROUPS
+       if (n > 0)
+               n = getgroups(n, list);
+#endif
+
        for (i = 0; i < n; i++)  {
                printf("%lu ", (unsigned long)list[i]);
                if (list[i] == gid)