add 1994 copyright

[unix-history] / usr / src / usr.bin / ar / delete.c

/*-
* Copyright (c) 1990, 1993, 1994
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Hugh Smith at The University of Guelph.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)delete.c    8.3 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/stat.h>

#include <ar.h>
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>

#include "archive.h"
#include "extern.h"
#include "pathnames.h"

/*-
* delete --
*      Deletes named members from the archive.
*/
int
delete(argv)
       char **argv;
{
       CF cf;
       off_t size;
       int afd, tfd;
       char *file;

       afd = open_archive(O_RDWR);
       tfd = tmp();

       /* Read and write to an archive; pad on both. */
       SETCF(afd, archive, tfd, tname, RPAD|WPAD);
       while (get_arobj(afd)) {
               if (*argv && (file = files(argv))) {
                       if (options & AR_V)
                               (void)printf("d - %s\n", file);
                       skip_arobj(afd);
                       continue;
               }
               put_arobj(&cf, (struct stat *)NULL);
       }

       size = lseek(tfd, (off_t)0, SEEK_CUR);
       (void)lseek(tfd, (off_t)0, SEEK_SET);
       (void)lseek(afd, (off_t)SARMAG, SEEK_SET);
       SETCF(tfd, tname, afd, archive, NOPAD);
       copy_ar(&cf, size);
       (void)close(tfd);
       (void)ftruncate(afd, size + SARMAG);
       close_archive(afd);

       if (*argv) {
               orphans(argv);
               return (1);
       }
       return (0);
}