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barebox/commands/dirname.c

66 lines
1.6 KiB
C

/*
* dirname.c - strip directory and suffix from filenames
*
* Copyright (c) 2012 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program 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.
*
*/
#include <common.h>
#include <command.h>
#include <libgen.h>
#include <environment.h>
#include <fs.h>
#include <getopt.h>
static int do_dirname(int argc, char *argv[])
{
int opt;
int path_fs = 0;
int len = 0;
while ((opt = getopt(argc, argv, "V")) > 0) {
switch (opt) {
case 'V':
path_fs = 1;
break;
}
}
if (argc < optind + 2)
return COMMAND_ERROR_USAGE;
if (path_fs)
len = strlen(get_mounted_path(argv[optind]));
setenv(argv[optind + 1], dirname(argv[optind]) + len);
return 0;
}
BAREBOX_CMD_HELP_START(dirname)
BAREBOX_CMD_HELP_TEXT("Strip last componext of NAME and store into $DIRNAME")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-V", "return the path relative to the mountpoint.")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(dirname)
.cmd = do_dirname,
BAREBOX_CMD_DESC("strip last component from a path")
BAREBOX_CMD_OPTS("[-V] NAME DIRNAME")
BAREBOX_CMD_GROUP(CMD_GRP_FILE)
BAREBOX_CMD_HELP(cmd_dirname_help)
BAREBOX_CMD_END