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/*
* cp.c - copy files
*
* Copyright (c) 2007 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* @file
* @brief cp: copy file command
*/
#include <common.h>
#include <command.h>
#include <fs.h>
#include <fcntl.h>
#include <errno.h>
#include <malloc.h>
#include <xfuncs.h>
#include <linux/stat.h>
#include <libbb.h>
#define RW_BUF_SIZE (ulong)4096
/**
* @param[in] src FIXME
* @param[out] dst FIXME
*/
static int copy_file(const char *src, const char *dst)
{
char *rw_buf = NULL;
int srcfd = 0, dstfd = 0;
int r, w;
int ret = 1;
rw_buf = xmalloc(RW_BUF_SIZE);
srcfd = open(src, O_RDONLY);
if (srcfd < 0) {
printf("could not open %s: %s\n", src, errno_str());
goto out;
}
dstfd = open(dst, O_WRONLY | O_CREAT);
if (dstfd < 0) {
printf("could not open %s: %s\n", dst, errno_str());
goto out;
}
while(1) {
r = read(srcfd, rw_buf, RW_BUF_SIZE);
if (read < 0) {
perror("read");
goto out;
}
if (!r)
break;
w = write(dstfd, rw_buf, r);
if (w < 0) {
perror("write");
goto out;
}
}
ret = 0;
out:
free(rw_buf);
if (srcfd > 0)
close(srcfd);
if (dstfd > 0)
close(dstfd);
return ret;
}
/**
* @param[in] cmdtp FIXME
* @param[in] argc Argument count from command line
* @param[in] argv List of input arguments
*/
static int do_cp ( cmd_tbl_t *cmdtp, int argc, char *argv[])
{
int ret = 1;
struct stat statbuf;
int last_is_dir = 0;
int i;
if (argc < 3) {
u_boot_cmd_usage(cmdtp);
return 1;
}
if (!stat(argv[argc - 1], &statbuf)) {
if (S_ISDIR(statbuf.st_mode))
last_is_dir = 1;
}
if (argc > 3 && !last_is_dir) {
printf("cp: target `%s' is not a directory\n", argv[argc - 1]);
return 1;
}
for (i = 1; i < argc - 1; i++) {
if (last_is_dir) {
char *dst;
dst = concat_path_file(argv[argc - 1], argv[i]);
ret = copy_file(argv[i], dst);
if (ret)
goto out;
free(dst);
} else {
ret = copy_file(argv[i], argv[argc - 1]);
if (ret)
goto out;
}
}
ret = 0;
out:
return ret;
}
static __maybe_unused char cmd_cp_help[] =
"Usage: cp <source> <destination>\n"
"cp copies file <source> to <destination>.\n"
"Currently only this form is supported and you have to specify the exact target\n"
"filename (not a target directory).\n"
"This command is file based only. See memcpy for memory copy\n";
U_BOOT_CMD_START(cp)
.maxargs = CONFIG_MAXARGS,
.cmd = do_cp,
.usage = "copy files",
U_BOOT_CMD_HELP(cmd_cp_help)
U_BOOT_CMD_END
/**
* @page cp_command cp: Copy file
*
* Usage: cp \<source> [\<source>] \<destination>
*
* \c cp copies file \<source> to \<destination>
*
* Currently only this form is supported and you have to specify the exact
* target filename (not a target directory).\n
* This command is file based only. See memcpy for generic memory copy
*/
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