386BSD 0.1 development

Work on file usr/src/usr.bin/chpass/pw_copy.c

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

diff --git a/usr/src/usr.bin/chpass/pw_copy.c b/usr/src/usr.bin/chpass/pw_copy.c
new file mode 100644 (file)
index 0000000..9b7ab90
--- /dev/null
+++ b/usr/src/usr.bin/chpass/pw_copy.c
@@ -0,0 +1,105 @@
+/*-
+ * 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_copy.c  5.3 (Berkeley) 5/2/91";
+#endif /* not lint */
+
+/*
+ * This module is used to copy the master password file, replacing a single
+ * record, by chpass(1) and passwd(1).
+ */
+
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+
+extern char *progname, *tempname;
+
+pw_copy(ffd, tfd, pw)
+       int ffd, tfd;
+       struct passwd *pw;
+{
+       register FILE *from, *to;
+       register int done;
+       register char *p;
+       char buf[8192];
+
+       if (!(from = fdopen(ffd, "r")))
+               pw_error(_PATH_MASTERPASSWD, 1, 1);
+       if (!(to = fdopen(tfd, "w")))
+               pw_error(tempname, 1, 1);
+
+       for (done = 0; fgets(buf, sizeof(buf), from);) {
+               if (!index(buf, '\n')) {
+                       (void)fprintf(stderr, "%s: %s: line too long\n",
+                           progname, _PATH_MASTERPASSWD);
+                       pw_error(NULL, 0, 1);
+               }
+               if (done) {
+                       (void)fprintf(to, "%s", buf);
+                       if (ferror(to))
+                               goto err;
+                       continue;
+               }
+               if (!(p = index(buf, ':'))) {
+                       (void)fprintf(stderr, "%s: %s: corrupted entry\n",
+                           progname, _PATH_MASTERPASSWD);
+                       pw_error(NULL, 0, 1);
+               }
+               *p = '\0';
+               if (strcmp(buf, pw->pw_name)) {
+                       *p = ':';
+                       (void)fprintf(to, "%s", buf);
+                       if (ferror(to))
+                               goto err;
+                       continue;
+               }
+               (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n",
+                   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);
+               done = 1;
+               if (ferror(to))
+                       goto err;
+       }
+       if (!done)
+               (void)fprintf(to, "%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n",
+                   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);
+
+       if (ferror(to))
+err:           pw_error(NULL, 1, 1);
+       (void)fclose(to);
+}