aosp12/external/mtools/mshowfat.c

109 lines
2.4 KiB
C

/* Copyright 1997,2000-2002,2009,2011 Alain Knaff.
* This file is part of mtools.
*
* Mtools is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Mtools is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mtools. If not, see <http://www.gnu.org/licenses/>.
*
* mcopy.c
* Copy an MSDOS files to and from Unix
*
*/
#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "vfat.h"
#include "mainloop.h"
#include "plain_io.h"
#include "nameclash.h"
#include "file.h"
#include "fs.h"
typedef struct Arg_t {
MainParam_t mp;
off_t offset;
} Arg_t;
static int dos_showfat(direntry_t *entry, MainParam_t *mp)
{
Stream_t *File=mp->File;
Arg_t *arg = (Arg_t *) mp->arg;
fprintPwd(stdout, entry,0);
putchar(' ');
if(arg->offset == -1) {
printFat(File);
} else {
printFatWithOffset(File, arg->offset);
}
printf("\n");
return GOT_ONE;
}
static int unix_showfat(MainParam_t *mp UNUSEDP)
{
fprintf(stderr,"File does not reside on a Dos fs\n");
return ERROR_ONE;
}
static void usage(int ret) NORETURN;
static void usage(int ret)
{
fprintf(stderr,
"Mtools version %s, dated %s\n", mversion, mdate);
fprintf(stderr,
"Usage: %s files\n", progname);
exit(ret);
}
void mshowfat(int argc, char **argv, int mtype UNUSEDP) NORETURN;
void mshowfat(int argc, char **argv, int mtype UNUSEDP)
{
Arg_t arg;
int c, ret;
/* get command line options */
if(helpFlag(argc, argv))
usage(0);
arg.offset = -1;
while ((c = getopt(argc, argv, "i:ho:")) != EOF) {
switch (c) {
case 'o':
arg.offset = str_to_offset(optarg);
break;
case 'i':
set_cmd_line_image(optarg);
break;
case 'h':
usage(0);
case '?':
usage(1);
}
}
if (argc - optind < 1)
usage(1);
/* only 1 file to handle... */
init_mp(&arg.mp);
arg.mp.arg = (void *) &arg;
arg.mp.callback = dos_showfat;
arg.mp.unixcallback = unix_showfat;
arg.mp.lookupflags = ACCEPT_PLAIN | ACCEPT_DIR | DO_OPEN;
ret=main_loop(&arg.mp, argv + optind, argc - optind);
exit(ret);
}