1 files changed, 33 insertions, 0 deletions
diff --git a/nss/gids.c b/nss/gids.c
new file mode 100644
index 0000000..81d7d69
--- /dev/null
+++ b/nss/gids.c
@@ -0,0 +1,33 @@
+#define _GNU_SOURCE
+#include <grp.h>
+#include <stdio.h>
+#include <string.h>
+#define BUFLEN 4096
+
+int main() {
+     struct group gr, *grp;
+     char buf[BUFLEN];
+     int i, cnt;
+
+     cnt = 0;
+
+     setgrent();
+     while (1) {
+           i = getgrent_r(&gr, buf, BUFLEN, &grp);
+           if (i) {
+                 printf("status: %d\n", i);
+                 break;
+           }
+           int num_members = 0;
+           char** mem_ptr = grp->gr_mem;
+           while (mem_ptr && *mem_ptr) {num_members++; mem_ptr++;}
+           printf("\ncnt %d: name %s gid (%d) : num_members %d\n", cnt, grp->gr_name, grp->gr_gid, num_members);
+           for (i = 0; i < num_members; i++)
+             printf("%s ", grp->gr_mem[i]);
+           if (num_members) printf("\n");
+           cnt++;
+     }
+     endgrent();
+     return 0;
+}
+