pw(8) -- a backend utility to manage the user and group databases.

sysinstall's new User&group menu will use it, hence it's a 2.2
candidate despite of providing new functionality.

Submitted by:	David L. Nugent, <davidn@blaze.net.au>

1 files changed, 111 insertions, 0 deletions

diff --git a/usr.sbin/pw/grupd.c b/usr.sbin/pw/grupd.c
new file mode 100644
index 0000000..753360d
--- /dev/null
+++ b/usr.sbin/pw/grupd.c
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 1996 by David L. Nugent <davidn@blaze.net.au>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer as
+ *    the first lines of this file unmodified.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by David L. Nugent.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DAVID L. NUGENT ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$Id$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "pwupd.h"
+
+int
+fmtgrentry(char *buf, struct group * grp, int type)
+{
+	int             i, l;
+
+	if (type == PWF_STANDARD)
+		l = sprintf(buf, "%s:*:%ld:", grp->gr_name, (long) grp->gr_gid);
+	else
+		l = sprintf(buf, "%s:%s:%ld:", grp->gr_name, grp->gr_passwd, (long) grp->gr_gid);
+
+	/*
+	 * Now, list members
+	 */
+	for (i = 0; i < 200 && grp->gr_mem[i]; i++)
+		l += sprintf(buf + l, "%s%s", i ? "," : "", grp->gr_mem[i]);
+	buf[l++] = '\n';
+	buf[l] = '\0';
+	return l;
+}
+
+
+int
+fmtgrent(char *buf, struct group * grp)
+{
+	return fmtgrentry(buf, grp, PWF_STANDARD);
+}
+
+
+static int
+gr_update(struct group * grp, char const * group, int mode)
+{
+	int             l;
+	char            pfx[32];
+	char            grbuf[MAXPWLINE];
+
+	endgrent();
+	l = sprintf(pfx, "%s:", group);
+
+	/*
+	 * Update the group file
+	 */
+	if (grp == NULL)
+		*grbuf = '\0';
+	else
+		fmtgrentry(grbuf, grp, PWF_PASSWD);
+	return fileupdate(_PATH_GROUP, 0644, grbuf, pfx, l, mode);
+}
+
+
+int
+addgrent(struct group * grp)
+{
+	return gr_update(grp, grp->gr_name, UPD_CREATE);
+}
+
+int
+chggrent(char const * login, struct group * grp)
+{
+	return gr_update(grp, login, UPD_REPLACE);
+}
+
+int
+delgrent(struct group * grp)
+{
+	return gr_update(NULL, grp->gr_name, UPD_DELETE);
+}