remember to NUL-terminate those strings!

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

/*-
* Copyright (c) 1990 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    5.2 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <stdio.h>
#include <ar.h>
#include "archive.h"
#include "pathnames.h"

extern CHDR chdr;                       /* converted header */
extern char *archive;                   /* archive name */
extern char *tname;                     /* temporary file "name" */

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

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

       SETCF(afd, archive, tfd, tname, RPAD|WPAD);
       while (get_header(afd)) {
               if (*argv && files(argv)) {
                       if (options & AR_V)
                               (void)printf("d - %s\n", chdr.name);
                       SKIP(afd, chdr.size, archive);
                       continue;
               }
               put_header(&cf, (struct stat *)NULL);
               copyfile(&cf, chdr.size);
       }
       eval = 0;
       ORPHANS;

       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, RPAD|WPAD);
       copyfile(&cf, size);
       (void)close(tfd);
       (void)ftruncate(afd, size + SARMAG);
       close_archive(afd);
       return(eval);
}