#include "rsync.h"
-#ifndef NGROUPS
-/* It ought to be defined, but just in case. */
-# define NGROUPS 32
-#endif
-
-int main(int argc, char *argv[])
+int
+main(UNUSED(int argc), UNUSED(char *argv[]))
{
int n, i;
- gid_t list[NGROUPS];
+ gid_t *list;
+ gid_t gid = MY_GID();
+ int gid_in_list = 0;
- if ((n = getgroups(NGROUPS, list)) == -1) {
+#ifdef HAVE_GETGROUPS
+ if ((n = getgroups(0, NULL)) < 0) {
perror("getgroups");
return 1;
}
+#else
+ 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("%u ", list[i]);
+ for (i = 0; i < n; i++) {
+ printf("%lu ", (unsigned long)list[i]);
+ if (list[i] == gid)
+ gid_in_list = 1;
+ }
+ /* The default gid might not be in the list on some systems. */
+ if (!gid_in_list)
+ printf("%lu", (unsigned long)gid);
printf("\n");
return 0;