File: unixunpk.c

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/* (C) Copyright 1993,1994 by Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of Carnegie
 * Mellon University not be used in advertising or publicity
 * pertaining to distribution of the software without specific,
 * written prior permission.  Carnegie Mellon University makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <unistd.h>
#include "version.h"
#include "part.h"

extern int overwrite_files;
extern int didchat;
int quiet;

void usage(void);
int handleMessage(struct part *inpart, char *defaultContentType,
		  int inAppleDouble, int extractText);

int main(int argc, char **argv)
{
    int opt;
    FILE *file;
    int extractText = 0;
    
    while ((opt = getopt(argc, argv, "qftC:")) != EOF) {
	switch (opt) {
	case 'f':
	    overwrite_files = 1;
	    break;

	case 'q':
	    quiet = 1;
	    break;

	case 't':
	    extractText = 1;
	    break;

	case 'C':
	    if (chdir(optarg)) {
		perror(optarg);
		exit(1);
	    }
	    break;

	default:
	    usage();
	}
    }

    if (optind == argc) {
	fprintf(stderr, "munpack: reading from standard input\n");
	didchat = 0;
	handleMessage(part_init(stdin), "text/plain", 0, extractText);
	if (!didchat) {
	    fprintf(stdout,
		    "Did not find anything to unpack from standard input\n");
	}
	exit(0);
    }

    while (argv[optind]) {
	file = fopen(argv[optind], "r");
	if (!file) {
	    perror(argv[optind]);
	}
	else {
	    didchat = 0;
	    handleMessage(part_init(file), "text/plain", 0, extractText);
	    fclose(file);
	    if (!didchat) {
		fprintf(stdout, 
			"Did not find anything to unpack from %s\n",
			argv[optind]);
	    }
	}
	optind++;
    }
    exit(0);
}

void usage(void) {
    fprintf(stderr, "munpack version %s\n", MPACK_VERSION);
    fprintf(stderr, "usage: munpack [-f] [-q] [-t] [-C directory] [files...]\n");
    exit(1);
}

void warn(char *s)
{
    fprintf(stderr, "munpack: warning: %s\n", s);
}

void chat(char *s)
{
    didchat = 1;
    if (!quiet) fprintf(stdout, "%s\n", s);
}