X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/4acbfa2ade4b81fbc5af5bc30f97b9feb9a40545..65fc84b32e2a558cca3a66587ac4cd06e16f1471:/getgroups.c

diff --git a/getgroups.c b/getgroups.c
index 7d681d16..4a10fe7d 100644
--- a/getgroups.c
+++ b/getgroups.c
@@ -26,18 +26,32 @@
 
 #include "rsync.h"
 
-int main(int argc, char *argv[])
+#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];
+	gid_t list[NGROUPS_MAX];
+	gid_t gid = getgid();
+	int gid_in_list = 0;
 
-	if ((n = getgroups(NGROUPS, list)) == -1) {
+	if ((n = getgroups(NGROUPS_MAX, list)) < 0) {
 		perror("getgroups");
 		return 1;
 	}
 
-	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;