2007-07-05 16:02:19 +00:00
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/*
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* cp.c - copy files
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*
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* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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2007-10-19 12:56:45 +00:00
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/**
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* @file
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2007-11-09 22:21:06 +00:00
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* @brief cp: copy file command
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2007-10-19 12:56:45 +00:00
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*/
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2007-07-05 16:02:14 +00:00
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#include <common.h>
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#include <command.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <malloc.h>
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#include <xfuncs.h>
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2007-10-17 09:12:57 +00:00
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#include <linux/stat.h>
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#include <libbb.h>
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2007-07-05 16:02:14 +00:00
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#define RW_BUF_SIZE (ulong)4096
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2007-10-19 12:56:45 +00:00
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/**
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* @param[in] src FIXME
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* @param[out] dst FIXME
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*/
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2007-10-17 09:12:57 +00:00
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static int copy_file(const char *src, const char *dst)
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2007-07-05 16:02:14 +00:00
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{
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char *rw_buf = NULL;
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2007-10-17 09:12:57 +00:00
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int srcfd = 0, dstfd = 0;
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int r, w;
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int ret = 1;
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2007-10-16 14:40:29 +00:00
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2007-07-05 16:02:14 +00:00
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rw_buf = xmalloc(RW_BUF_SIZE);
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2007-10-17 09:12:57 +00:00
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srcfd = open(src, O_RDONLY);
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if (srcfd < 0) {
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printf("could not open %s: %s\n", src, errno_str());
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2007-07-05 16:02:14 +00:00
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goto out;
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}
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2007-10-17 09:12:57 +00:00
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dstfd = open(dst, O_WRONLY | O_CREAT);
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if (dstfd < 0) {
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printf("could not open %s: %s\n", dst, errno_str());
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2007-07-05 16:02:14 +00:00
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goto out;
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}
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while(1) {
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2007-10-17 09:12:57 +00:00
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r = read(srcfd, rw_buf, RW_BUF_SIZE);
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2008-09-02 15:19:10 +00:00
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if (r < 0) {
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2007-07-05 16:02:14 +00:00
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perror("read");
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goto out;
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}
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if (!r)
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break;
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2007-10-17 09:12:57 +00:00
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w = write(dstfd, rw_buf, r);
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2007-07-05 16:02:14 +00:00
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if (w < 0) {
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perror("write");
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goto out;
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}
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}
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2007-10-17 09:12:57 +00:00
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2007-07-05 16:02:14 +00:00
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ret = 0;
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out:
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free(rw_buf);
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2007-10-17 09:12:57 +00:00
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if (srcfd > 0)
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close(srcfd);
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if (dstfd > 0)
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close(dstfd);
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return ret;
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}
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2007-10-19 12:56:45 +00:00
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/**
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* @param[in] cmdtp FIXME
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* @param[in] argc Argument count from command line
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* @param[in] argv List of input arguments
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*/
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2007-10-17 09:12:57 +00:00
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static int do_cp ( cmd_tbl_t *cmdtp, int argc, char *argv[])
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{
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int ret = 1;
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struct stat statbuf;
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int last_is_dir = 0;
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int i;
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if (argc < 3) {
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u_boot_cmd_usage(cmdtp);
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return 1;
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}
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if (!stat(argv[argc - 1], &statbuf)) {
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if (S_ISDIR(statbuf.st_mode))
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last_is_dir = 1;
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}
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if (argc > 3 && !last_is_dir) {
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printf("cp: target `%s' is not a directory\n", argv[argc - 1]);
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return 1;
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}
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for (i = 1; i < argc - 1; i++) {
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if (last_is_dir) {
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char *dst;
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dst = concat_path_file(argv[argc - 1], argv[i]);
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ret = copy_file(argv[i], dst);
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if (ret)
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goto out;
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free(dst);
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} else {
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ret = copy_file(argv[i], argv[argc - 1]);
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if (ret)
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goto out;
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}
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}
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ret = 0;
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out:
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2007-07-05 16:02:14 +00:00
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return ret;
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}
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2008-04-04 09:46:55 +00:00
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static const __maybe_unused char cmd_cp_help[] =
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2007-07-05 16:02:14 +00:00
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"Usage: cp <source> <destination>\n"
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"cp copies file <source> to <destination>.\n"
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"Currently only this form is supported and you have to specify the exact target\n"
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"filename (not a target directory).\n"
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2007-10-17 09:12:57 +00:00
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"This command is file based only. See memcpy for memory copy\n";
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2007-07-05 16:02:14 +00:00
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U_BOOT_CMD_START(cp)
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.maxargs = CONFIG_MAXARGS,
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.cmd = do_cp,
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.usage = "copy files",
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U_BOOT_CMD_HELP(cmd_cp_help)
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U_BOOT_CMD_END
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2007-10-19 12:56:45 +00:00
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/**
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2007-11-09 22:21:06 +00:00
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* @page cp_command cp: Copy file
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2007-10-19 12:56:45 +00:00
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*
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2007-11-08 11:01:52 +00:00
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* Usage: cp \<source> [\<source>] \<destination>
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2007-10-19 12:56:45 +00:00
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*
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2007-11-09 22:21:06 +00:00
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* \c cp copies file \<source> to \<destination>
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*
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* Currently only this form is supported and you have to specify the exact
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* target filename (not a target directory).\n
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* This command is file based only. See memcpy for generic memory copy
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2007-10-19 12:56:45 +00:00
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*/
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