initial import of NetBSD tree

1 files changed, 219 insertions, 0 deletions

diff --git a/usr.bin/chpass/edit.c b/usr.bin/chpass/edit.c
new file mode 100644
index 00000000000..10c82bb5722
--- /dev/null
+++ b/usr.bin/chpass/edit.c
@@ -0,0 +1,219 @@
+/*	$NetBSD: edit.c,v 1.5 1995/07/28 07:03:41 phil Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993, 1994
+ *	The Regents of the University of California.  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.
+ * 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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)edit.c	8.3 (Berkeley) 4/2/94";
+#else
+static char rcsid[] = "$NetBSD: edit.c,v 1.5 1995/07/28 07:03:41 phil Exp $";
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#include <err.h>
+#include <errno.h>
+#include <paths.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <pw_scan.h>
+#include <pw_util.h>
+
+#include "chpass.h"
+
+extern char *tempname;
+
+void
+edit(pw)
+	struct passwd *pw;
+{
+	struct stat begin, end;
+
+	for (;;) {
+		if (stat(tempname, &begin))
+			pw_error(tempname, 1, 1);
+		pw_edit(1);
+		if (stat(tempname, &end))
+			pw_error(tempname, 1, 1);
+		if (begin.st_mtime == end.st_mtime) {
+			warnx("no changes made");
+			pw_error(NULL, 0, 0);
+		}
+		if (verify(pw))
+			break;
+		pw_prompt();
+	}
+}
+
+/*
+ * display --
+ *	print out the file for the user to edit; strange side-effect:
+ *	set conditional flag if the user gets to edit the shell.
+ */
+void
+display(fd, pw)
+	int fd;
+	struct passwd *pw;
+{
+	FILE *fp;
+	char *bp, *p, *ttoa();
+
+	if (!(fp = fdopen(fd, "w")))
+		pw_error(tempname, 1, 1);
+
+	(void)fprintf(fp,
+	    "#Changing user database information for %s.\n", pw->pw_name);
+	if (!uid) {
+		(void)fprintf(fp, "Login: %s\n", pw->pw_name);
+		(void)fprintf(fp, "Password: %s\n", pw->pw_passwd);
+		(void)fprintf(fp, "Uid [#]: %d\n", pw->pw_uid);
+		(void)fprintf(fp, "Gid [# or name]: %d\n", pw->pw_gid);
+		(void)fprintf(fp, "Change [month day year]: %s\n",
+		    ttoa(pw->pw_change));
+		(void)fprintf(fp, "Expire [month day year]: %s\n",
+		    ttoa(pw->pw_expire));
+		(void)fprintf(fp, "Class: %s\n", pw->pw_class);
+		(void)fprintf(fp, "Home directory: %s\n", pw->pw_dir);
+		(void)fprintf(fp, "Shell: %s\n",
+		    *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
+	}
+	/* Only admin can change "restricted" shells. */
+	else if (ok_shell(pw->pw_shell))
+		/*
+		 * Make shell a restricted field.  Ugly with a
+		 * necklace, but there's not much else to do.
+		 */
+		(void)fprintf(fp, "Shell: %s\n",
+		    *pw->pw_shell ? pw->pw_shell : _PATH_BSHELL);
+	else
+		list[E_SHELL].restricted = 1;
+	bp = pw->pw_gecos;
+	p = strsep(&bp, ",");
+	(void)fprintf(fp, "Full Name: %s\n", p ? p : "");
+	p = strsep(&bp, ",");
+	(void)fprintf(fp, "Location: %s\n", p ? p : "");
+	p = strsep(&bp, ",");
+	(void)fprintf(fp, "Office Phone: %s\n", p ? p : "");
+	p = strsep(&bp, ",");
+	(void)fprintf(fp, "Home Phone: %s\n", p ? p : "");
+
+	(void)fchown(fd, getuid(), getgid());
+	(void)fclose(fp);
+}
+
+int
+verify(pw)
+	struct passwd *pw;
+{
+	ENTRY *ep;
+	char *p;
+	struct stat sb;
+	FILE *fp;
+	int len;
+	static char buf[LINE_MAX];
+
+	if (!(fp = fopen(tempname, "r")))
+		pw_error(tempname, 1, 1);
+	if (fstat(fileno(fp), &sb))
+		pw_error(tempname, 1, 1);
+	if (sb.st_size == 0) {
+		warnx("corrupted temporary file");
+		goto bad;
+	}
+	while (fgets(buf, sizeof(buf), fp)) {
+		if (!buf[0] || buf[0] == '#')
+			continue;
+		if (!(p = strchr(buf, '\n'))) {
+			warnx("line too long");
+			goto bad;
+		}
+		*p = '\0';
+		for (ep = list;; ++ep) {
+			if (!ep->prompt) {
+				warnx("unrecognized field");
+				goto bad;
+			}
+			if (!strncasecmp(buf, ep->prompt, ep->len)) {
+				if (ep->restricted && uid) {
+					warnx(
+					    "you may not change the %s field",
+						ep->prompt);
+					goto bad;
+				}
+				if (!(p = strchr(buf, ':'))) {
+					warnx("line corrupted");
+					goto bad;
+				}
+				while (isspace(*++p));
+				if (ep->except && strpbrk(p, ep->except)) {
+					warnx(
+				   "illegal character in the \"%s\" field",
+					    ep->prompt);
+					goto bad;
+				}
+				if ((ep->func)(p, pw, ep)) {
+bad:					(void)fclose(fp);
+					return (0);
+				}
+				break;
+			}
+		}
+	}
+	(void)fclose(fp);
+
+	/* Build the gecos field. */
+	len = strlen(list[E_NAME].save) + strlen(list[E_BPHONE].save) +
+	    strlen(list[E_HPHONE].save) + strlen(list[E_LOCATE].save) + 4;
+	if (!(p = malloc(len)))
+		err(1, NULL);
+	(void)sprintf(pw->pw_gecos = p, "%s,%s,%s,%s", list[E_NAME].save,
+	    list[E_LOCATE].save, list[E_BPHONE].save, list[E_HPHONE].save);
+
+	if (snprintf(buf, sizeof(buf),
+	    "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s",
+	    pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_class,
+	    pw->pw_change, pw->pw_expire, pw->pw_gecos, pw->pw_dir,
+	    pw->pw_shell) >= sizeof(buf)) {
+		warnx("entries too long");
+		return (0);
+	}
+	return (pw_scan(buf, pw, (int *)NULL));
+}