From fb08c34cf3950f994701a9c98c89670f6346f7ab Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Wed, 29 Jul 1998 05:05:36 +0000
Subject: get rid of the runtime test for broken getgroups() and add a compile
 time test instead. This also allows us to get rid of the igroups element of a
 couple of structures. (This used to be commit
 8b25fe734166b76ceebf8d9543c706ebe0fddc96)

---
 source3/tests/getgroups.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 source3/tests/getgroups.c

(limited to 'source3/tests/getgroups.c')

diff --git a/source3/tests/getgroups.c b/source3/tests/getgroups.c
new file mode 100644
index 0000000000..37990e010b
--- /dev/null
+++ b/source3/tests/getgroups.c
@@ -0,0 +1,62 @@
+/* this tests whether getgroups actually returns lists of integers
+   rather than gid_t. The test only works if the user running
+   the test is in at least 1 group 
+
+   The test is designed to check for those broken OSes that define
+   getgroups() as returning an array of gid_t but actually return a
+   array of ints! Ultrix is one culprit
+  */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <grp.h>
+
+main()
+{
+	int i;
+	int *igroups;
+	char *cgroups;
+	int grp = 0;
+	int  ngroups = getgroups(0,&grp);
+
+	if (sizeof(gid_t) == sizeof(int)) {
+		fprintf(stderr,"gid_t and int are the same size\n");
+		exit(1);
+	}
+
+	if (ngroups <= 0)
+		ngroups = 32;
+
+	igroups = (int *)malloc(sizeof(int)*ngroups);
+
+	for (i=0;i<ngroups;i++)
+		igroups[i] = 0x42424242;
+
+	ngroups = getgroups(ngroups,(gid_t *)igroups);
+
+	if (igroups[0] == 0x42424242)
+		ngroups = 0;
+
+	if (ngroups == 0) {
+		printf("WARNING: can't determine getgroups return type\n");
+		exit(1);
+	}
+	
+	cgroups = (char *)igroups;
+
+	if (ngroups == 1 && 
+	    cgroups[2] == 0x42 && cgroups[3] == 0x42) {
+		fprintf(stderr,"getgroups returns gid_t\n");
+		exit(1);
+	}
+	  
+	for (i=0;i<ngroups;i++) {
+		if (igroups[i] == 0x42424242) {
+			fprintf(stderr,"getgroups returns gid_t\n");
+			exit(1);
+		}
+	}
+
+	exit(0);
+}
-- 
cgit