From: Sam Leffler <sam@ucbvax.Berkeley.EDU>
Date: Mon, 8 Nov 1982 11:11:20 +0000 (-0800)
Subject: date and time created 82/11/07 19:11:20 by sam
X-Git-Tag: BSD-4_1c_2-Snapshot-Development~1893
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/a4f42d0e28f587fff6804dc5dc2bf6764e55c81f

date and time created 82/11/07 19:11:20 by sam

SCCS-vsn: lib/libc/gen/initgroups.c 4.1
---

diff --git a/usr/src/lib/libc/gen/initgroups.c b/usr/src/lib/libc/gen/initgroups.c
new file mode 100644
index 0000000000..50d016d93e
--- /dev/null
+++ b/usr/src/lib/libc/gen/initgroups.c
@@ -0,0 +1,38 @@
+/*	initgroups.c	4.1	82/11/07	*/
+
+/*
+ * initgroups
+ */
+#include <stdio.h>
+#include <sys/param.h>
+#include <grp.h>
+
+struct group *getgrent();
+
+initgroups(uname, agroup)
+	char *uname;
+	int agroup;
+{
+	int groups[NGROUPS], ngroups = 0;
+	register struct group *grp;
+	register int i;
+
+	if (agroup >= 0)
+		groups[ngroups++] = agroup;
+	setgrent();
+	while (grp = getgrent())
+		for (i = 0; grp->gr_mem[i]; i++)
+			if (!strcmp(grp->gr_mem[i], uname)) {
+				groups[ngroups++] = grp->gr_gid;
+				if (ngroups == NGROUPS) {
+fprintf(stderr, "inigrp: %s is in too many groups\n", uname);
+					goto toomany;
+				}
+			}
+toomany:
+	if (setgroups(ngroups, groups) < 0) {
+		perror("setgrp");
+		return (1);
+	}
+	return (0);
+}