2.11BSD#431 - /usr/src/usr.bin/ranlib/touch.c

   1: /*-
   2:  * Copyright (c) 1990 The Regents of the University of California.
   3:  * All rights reserved.
   4:  *
   5:  * This code is derived from software contributed to Berkeley by
   6:  * Hugh Smith at The University of Guelph.
   7:  *
   8:  * Redistribution and use in source and binary forms, with or without
   9:  * modification, are permitted provided that the following conditions
  10:  * are met:
  11:  * 1. Redistributions of source code must retain the above copyright
  12:  *    notice, this list of conditions and the following disclaimer.
  13:  * 2. Redistributions in binary form must reproduce the above copyright
  14:  *    notice, this list of conditions and the following disclaimer in the
  15:  *    documentation and/or other materials provided with the distribution.
  16:  * 3. All advertising materials mentioning features or use of this software
  17:  *    must display the following acknowledgement:
  18:  *	This product includes software developed by the University of
  19:  *	California, Berkeley and its contributors.
  20:  * 4. Neither the name of the University nor the names of its contributors
  21:  *    may be used to endorse or promote products derived from this software
  22:  *    without specific prior written permission.
  23:  *
  24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34:  * SUCH DAMAGE.
  35:  */
  36: 
  37: #if !defined(lint) && defined(DOSCCS)
  38: static char sccsid[] = "@(#)touch.c	5.3 (Berkeley) 3/12/91";
  39: #endif
  40: 
  41: #include <sys/types.h>
  42: #include <sys/dir.h>
  43: #include <sys/file.h>
  44: #include <fcntl.h>
  45: #include <ranlib.h>
  46: #include <ar.h>
  47: #include <time.h>
  48: #include <stdio.h>
  49: #include <string.h>
  50: #include <archive.h>
  51: 
  52: extern  time_t  time();
  53: extern  off_t   lseek();
  54: extern CHDR chdr;           /* converted header */
  55: extern char *archive;           /* archive name */
  56: void error();
  57: 
  58: touch()
  59: {
  60:     int afd;
  61: 
  62:     afd = open_archive(O_RDWR);
  63: 
  64:     if (!get_arobj(afd) ||
  65:         strncmp(RANLIBMAG, chdr.name, sizeof(RANLIBMAG) - 1)) {
  66:         (void)fprintf(stderr,
  67:             "ranlib: %s: no symbol table.\n", archive);
  68:         return(1);
  69:     }
  70:     settime(afd);
  71:     return(0);
  72: }
  73: 
  74: settime(afd)
  75:     int afd;
  76: {
  77:     struct ar_hdr *hdr;
  78:     off_t size;
  79:     char buf[50];
  80: 
  81:     size = SARMAG + sizeof(hdr->ar_name);
  82:     if (lseek(afd, size, L_SET) == (off_t)-1)
  83:         error(archive);
  84:     (void)sprintf(buf, "%-12ld", time((time_t *)NULL) + RANLIBSKEW);
  85:     if (write(afd, buf, sizeof(hdr->ar_date)) != sizeof(hdr->ar_date))
  86:         error(archive);
  87: }

Defined functions

Defined variables