# 2.11BSD#431 - /usr/src/bin/hostname/hostname.c

##### Functions

    main              X

       1: /*
       2:  * Copyright (c) 1988, 1993
       3:  *	The Regents of the University of California.  All rights reserved.
       4:  *
       5:  * Redistribution and use in source and binary forms, with or without
       6:  * modification, are permitted provided that the following conditions
       7:  * are met:
       8:  * 1. Redistributions of source code must retain the above copyright
       9:  *    notice, this list of conditions and the following disclaimer.
      10:  * 2. Redistributions in binary form must reproduce the above copyright
      11:  *    notice, this list of conditions and the following disclaimer in the
      12:  *    documentation and/or other materials provided with the distribution.
      13:  * 3. All advertising materials mentioning features or use of this software
      14:  *    must display the following acknowledgement:
      15:  *	This product includes software developed by the University of
      16:  *	California, Berkeley and its contributors.
      17:  * 4. Neither the name of the University nor the names of its contributors
      18:  *    may be used to endorse or promote products derived from this software
      19:  *    without specific prior written permission.
      20:  *
      21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31:  * SUCH DAMAGE.
      32:  *
      33:  *	hostname.c,v 1.2 1994/09/24 02:55:40 davidg Exp
      34:  */
      35:
      36: #if defined(DOSCCS) & !defined(lint)
      37: static char copyright[] =
      38: "@(#) Copyright (c) 1988, 1993\n\
      39: 	The Regents of the University of California.  All rights reserved.\n";
      40: #endif /* not lint */
      41:
      42: #if defined(DOSCCS) & !defined(lint)
      43: static char sccsid[] = "@(#)hostname.c	8.1.1 (R.Birch) 8/2/95";
      44: #endif /* not lint */
      45:
      46: #include <sys/param.h>
      47:
      48: #include <stdio.h>
      49: #include <string.h>
      50:
      51: int
      52: main(argc,argv)
      53:     int argc;
      54:     char *argv[];
      55: {
      56:     extern int optind;
      57:     int ch, sflag;
      58:     char *p, hostname[MAXHOSTNAMELEN];
      59:
      60:     sflag = 0;
      61:     while ((ch = getopt(argc, argv, "s")) != EOF)
      62:         switch (ch) {
      63:         case 's':
      64:             sflag = 1;
      65:             break;
      66:         case '?':
      67:         default:
      68:             (void)fprintf(stderr,
      69:                 "usage: hostname [-s] [hostname]\n");
      70:             exit(1);
      71:         }
      72:     argc -= optind;
      73:     argv += optind;
      74:
      75:     if (*argv) {
      76:         if (sethostname(*argv, strlen(*argv)))
      77:             err(1, "sethostname");
      78:     } else {
      79:         if (gethostname(hostname, sizeof(hostname)))
      80:             err(1, "gethostname");
      81:         if (sflag && (p = strchr(hostname, '.')))
      82:             *p = '\0';
      83:         (void)printf("%s\n", hostname);
      84:     }
      85:     exit(0);
      86: }

#### Defined functions

main defined in line 51; never used

#### Defined variables

copyright defined in line 37; never used
sccsid defined in line 43; never used

Last modified: 1995-03-14 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 1239 |