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/* $Source: /u/mark/src/pax/RCS/cpio.c,v $

 *

 * $Revision: 1.2 $

 *

 * cpio.c - Cpio specific functions for archive handling

 *

 * DESCRIPTION

 *

 *	These function provide a cpio conformant interface to the pax

 *	program.

 *

 * AUTHOR

 *

 *     Mark H. Colburn, NAPS International (mark@jhereg.mn.org)

 *

 * Sponsored by The USENIX Association for public distribution. 

 *

 * Copyright (c) 1989 Mark H. Colburn.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms are permitted

 * provided that the above copyright notice is duplicated in all such 

 * forms and that any documentation, advertising materials, and other 

 * materials related to such distribution and use acknowledge that the 

 * software was developed * by Mark H. Colburn and sponsored by The 

 * USENIX Association. 

 *

 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

 *

 * $Log:	cpio.c,v $

 * Revision 1.2  89/02/12  10:04:13  mark

 * 1.2 release fixes

 * 

 * Revision 1.1  88/12/23  18:02:05  mark

 * Initial revision

 * 

 */

#ifndef lint

static char *ident = "$Id: cpio.c,v 1.2 89/02/12 10:04:13 mark Exp $";

static char *copyright = "Copyright (c) 1989 Mark H. Colburn.\nAll rights reserved.\n";

#endif /* ! lint */

/* Headers */

#include "pax.h"

/* Function Prototypes */

#ifdef __STDC__

static void 	usage(void);

#else /* !__STDC__ */

static void 	usage();

#endif /* __STDC__ */

/* do_cpio - handle cpio format archives

 *

 * DESCRIPTION

 *

 *	Do_cpio provides a standard CPIO interface to the PAX program.  All

 *	of the standard cpio flags are available, and the behavior of the

 *	program mimics traditonal cpio.

 *

 * PARAMETERS

 *

 *	int	argc	- command line argument count

 *	char	**argv	- pointer to command line arguments

 *

 * RETURNS

 *

 *	Nothing.

 */

#ifdef __STDC__

int do_cpio(int argc, char **argv)

#else

int do_cpio(argc, argv)

int             argc;

char          **argv;

#endif

{

    int             c;

    char           *dirname;

    Stat            st;

    /* default input/output file for CPIO is STDIN/STDOUT */

    ar_file = "-";

    names_from_stdin = 1;

    /* set up the flags to reflect the default CPIO inteface. */

    blocksize = BLOCKSIZE;

    ar_interface = CPIO;

    ar_format = CPIO;

    msgfile=stderr;

    while ((c = getopt(argc, argv, "D:Bacdfilmoprtuv")) != EOF) {

	switch (c) {

	case 'i':

	    f_extract = 1;

	    break;

	case 'o':

	    f_create = 1;

	    break;

	case 'p':

	    f_pass = 1;

	    dirname = argv[--argc];

	    /* check to make sure that the argument is a directory */

	    if (LSTAT(dirname, &st) < 0) {

		fatal(strerror());

	    }

	    if ((st.sb_mode & S_IFMT) != S_IFDIR) {

		fatal("Not a directory");

	    }

	    break;

	case 'B':

	    blocksize = BLOCK;

	    break;

	case 'a':

	    f_access_time = 1;

	    break;

	case 'c':

	    break;

	case 'D':

	    ar_file = optarg;

	    break;

	case 'd':

	    f_dir_create = 1;

	    break;

	case 'f':

	    f_reverse_match = 1;

	    break;

	case 'l':

	    f_link = 1;

	    break;

	case 'm':

	    f_mtime = 1;

	    break;

	case 'r':

	    f_interactive = 1;

	    break;

	case 't':

	    f_list = 1;

	    break;

	case 'u':

	    f_unconditional = 1;

	    break;

	case 'v':

	    f_verbose = 1;

	    break;

	default:

	    usage();

	}

    }

    if (f_create + f_pass + f_extract != 1) {

	usage();

    }

    if (!f_pass) {

	buf_allocate((OFFSET) blocksize);

    }

    if (f_extract) {

	open_archive(AR_READ);	/* Open for reading */

	read_archive();

    } else if (f_create) {

	open_archive(AR_WRITE);

	create_archive();

    } else if (f_pass) {

	pass(dirname);

    }

    /* print out the total block count transfered */

    fprintf(stderr, "%ld Blocks\n", ROUNDUP(total, BLOCKSIZE) / BLOCKSIZE);

    exit(0);

    /* NOTREACHED */

}

/* usage - print a helpful message and exit

 *

 * DESCRIPTION

 *

 *	Usage prints out the usage message for the CPIO interface and then

 *	exits with a non-zero termination status.  This is used when a user

 *	has provided non-existant or incompatible command line arguments.

 *

 * RETURNS

 *

 *	Returns an exit status of 1 to the parent process.

 *

 */

#ifdef __STDC__

static void usage(void)

#else

static void usage()

#endif

{

    fprintf(stderr, "Usage: %s -o[Bacv]\n", myname);

    fprintf(stderr, "       %s -i[Bcdmrtuvf] [pattern...]\n", myname);

    fprintf(stderr, "       %s -p[adlmruv] directory\n", myname);

    exit(1);

}