386BSD 0.1 development

Work on file usr/src/bin/hostname/hostname.c

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

diff --git a/usr/src/bin/hostname/hostname.c b/usr/src/bin/hostname/hostname.c
new file mode 100644 (file)
index 0000000..c49bf40
--- /dev/null
+++ b/usr/src/bin/hostname/hostname.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 1983, 1988 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
+char copyright[] =
+"@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)hostname.c 5.4 (Berkeley) 5/31/90";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <sys/param.h>
+
+main(argc,argv)
+       int argc;
+       char **argv;
+{
+       extern int optind;
+       int ch, sflag;
+       char hostname[MAXHOSTNAMELEN], *p, *index();
+
+       sflag = 0;
+       while ((ch = getopt(argc, argv, "s")) != EOF)
+               switch((char)ch) {
+               case 's':
+                       sflag = 1;
+                       break;
+               case '?':
+               default:
+                       fputs("hostname [-s] [hostname]\n", stderr);
+                       exit(1);
+               }
+       argv += optind;
+
+       if (*argv) {
+               if (sethostname(*argv, strlen(*argv))) {
+                       perror("sethostname");
+                       exit(1);
+               }
+       } else {
+               if (gethostname(hostname, sizeof(hostname))) {
+                       perror("gethostname");
+                       exit(1);
+               }
+               if (sflag && (p = index(hostname, '.')))
+                       *p = '\0';
+               puts(hostname);
+       }
+       exit(0);
+}