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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);
}
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