usr/src/usr.bin/ar/append.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[] = "@(#)append.c    5.4 (Berkeley) %G%";
#endif /* not lint */

#include <sys/param.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include "archive.h"
#include "extern.h"

extern char *archive;                   /* archive name */

/*
 * append --
 *      Append files to the archive - modifies original archive or creates
 *      a new archive if named archive does not exist.
 */
append(argv)
        char **argv;
{
        register int fd, afd;
        register char *file;
        struct stat sb;
        CF cf;
        int rval;

        afd = open_archive(O_CREAT|O_RDWR);
        if (lseek(afd, (off_t)0, SEEK_END) == (off_t)-1)
                error(archive);

        /* Read from disk, write to an archive; pad on write. */
        SETCF(0, 0, afd, archive, WPAD);
        while (file = *argv++) {
                if ((fd = open(file, O_RDONLY)) < 0) {
                        (void)fprintf(stderr,
                            "ar: %s: %s.\n", file, strerror(errno));
                        rval = 1;
                        continue;
                }
                if (options & AR_V)
                        (void)printf("q - %s\n", file);
                cf.rfd = fd;
                cf.rname = file;
                put_object(&cf, &sb);
                (void)close(fd);
        }
        close_archive(afd);
        return(rval);
}