BSD 4_3_Tahoe release

[unix-history] / usr / src / bin / hostname.c

diff --git a/usr/src/bin/hostname.c b/usr/src/bin/hostname.c
index ef741b5..ecc4c11 100644 (file)
--- a/usr/src/bin/hostname.c
+++ b/usr/src/bin/hostname.c
@@ -1,23 +1,67 @@
-static char *sccsid = "@(#)hostname.c  1.2 1.2 83/01/02"; 

 /*
 /*

- * hostname -- get (or set hostname)
+ * Copyright (c) 1983, 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

  */
  */

-#include <stdio.h>

 
 

-char hostname[32];
-extern int errno;
+#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 5.3 (Berkeley) 6/18/88";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <sys/param.h>

 
 main(argc,argv)
 
 main(argc,argv)

-       char *argv[];
+       int argc;
+       char **argv;

 {
 {

-       argc--;
-       argv++;
-       if (argc) {
-               if (sethostname(*argv,strlen(*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");
                        perror("sethostname");

+                       exit(1);
+               }

        } else {
        } else {

-               gethostname(hostname,sizeof(hostname));
-               printf("%s\n",hostname);
+               if (gethostname(hostname, sizeof(hostname))) {
+                       perror("gethostname");
+                       exit(1);
+               }
+               if (sflag && (p = index(hostname, '.')))
+                       *p = '\0';
+               puts(hostname);

        }
        }

-       exit(errno);
+       exit(0);

 }
 }