386BSD 0.1 development

Work on file usr/src/usr.sbin/pwd_mkdb/pw_scan.c

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/usr.sbin/pwd_mkdb/pw_scan.c b/usr/src/usr.sbin/pwd_mkdb/pw_scan.c
new file mode 100644 (file)
index 0000000..ff58899
--- /dev/null
+++ b/usr/src/usr.sbin/pwd_mkdb/pw_scan.c
@@ -0,0 +1,123 @@
+/*-
+ * Copyright (c) 1990 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
+static char sccsid[] = "@(#)pw_scan.c  5.1 (Berkeley) 2/12/91";
+#endif /* not lint */
+
+/*
+ * This module is used to "verify" password entries by chpass(1) and
+ * pwd_mkdb(8).
+ */
+
+#include <sys/param.h>
+#include <fcntl.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+extern char *progname;
+
+pw_scan(bp, pw)
+       char *bp;
+       struct passwd *pw;
+{
+       register long id;
+       register int root;
+       register char *p, *sh;
+       char *getusershell();
+
+       if (!(pw->pw_name = strsep(&bp, ":")))          /* login */
+               goto fmt;
+       root = !strcmp(pw->pw_name, "root");
+
+       if (!(pw->pw_passwd = strsep(&bp, ":")))        /* passwd */
+               goto fmt;
+
+       if (!(p = strsep(&bp, ":")))                    /* uid */
+               goto fmt;
+       id = atol(p);
+       if (root && id) {
+               (void)fprintf(stderr, "%s: root uid should be 0", progname);
+               return(0);
+       }
+       if (id > USHRT_MAX) {
+               (void)fprintf(stderr,
+                   "%s: %s > max uid value (%d)", progname, p, USHRT_MAX);
+               return(0);
+       }
+       pw->pw_uid = id;
+
+       if (!(p = strsep(&bp, ":")))                    /* gid */
+               goto fmt;
+       id = atol(p);
+       if (id > USHRT_MAX) {
+               (void)fprintf(stderr,
+                   "%s: %s > max gid value (%d)", progname, p, USHRT_MAX);
+               return(0);
+       }
+       pw->pw_gid = id;
+
+       pw->pw_class = strsep(&bp, ":");                /* class */
+       if (!(p = strsep(&bp, ":")))                    /* change */
+               goto fmt;
+       pw->pw_change = atol(p);
+       if (!(p = strsep(&bp, ":")))                    /* expire */
+               goto fmt;
+       pw->pw_expire = atol(p);
+       pw->pw_gecos = strsep(&bp, ":");                /* gecos */
+       pw->pw_dir = strsep(&bp, ":");                  /* directory */
+       if (!(pw->pw_shell = strsep(&bp, ":")))         /* shell */
+               goto fmt;
+
+       p = pw->pw_shell;
+       if (root && *p)                                 /* empty == /bin/sh */
+               for (setusershell();;) {
+                       if (!(sh = getusershell())) {
+                               (void)fprintf(stderr,
+                                   "%s: warning, unknown root shell\n",
+                                   progname);
+                               break;
+                       }
+                       if (!strcmp(p, sh))
+                               break;  
+               }
+
+       if (p = strsep(&bp, ":")) {                     /* too many */
+fmt:           (void)fprintf(stderr, "%s: corrupted entry\n", progname);
+               return(0);
+       }
+       return(1);
+}