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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
*/
#include <common.h>
#include <command.h>
#include <fs.h>
#include <fcntl.h>
#include <errno.h>
#include <malloc.h>
#include <xfuncs.h>
#define RW_BUF_SIZE (ulong)4096
int do_cp ( cmd_tbl_t *cmdtp, int argc, char *argv[])
{
int r, w, ret = 1;
int src = 0, dst = 0;
char *rw_buf = NULL;
rw_buf = xmalloc(RW_BUF_SIZE);
src = open(argv[1], O_RDONLY);
if (src < 0) {
printf("could not open %s: %s\n", src, errno_str());
goto out;
}
dst = open(argv[2], O_WRONLY | O_CREAT);
if ( dst < 0) {
printf("could not open %s: %s\n", dst, errno_str());
goto out;
}
while(1) {
r = read(src, rw_buf, RW_BUF_SIZE);
if (read < 0) {
perror("read");
goto out;
}
if (!r)
break;
w = write(dst, rw_buf, r);
if (w < 0) {
perror("write");
goto out;
}
}
ret = 0;
out:
free(rw_buf);
if (src)
close(src);
if (dst)
close(dst);
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"
"Note: This command was previously used as memory copy. Currently there is no\n"
"equivalent command for this. This must be fixed of course.\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
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