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make copy_file() globally available 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2009-09-25 12:19:37 +02:00
parent de14570aea
commit a205b87fa2
4 changed files with 63 additions and 58 deletions
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59
commands/cp.c
View File

@ -26,66 +26,11 @@
*/
#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 (r < 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;
}
#include <fs.h>
#include <malloc.h>
/**
* @param[in] cmdtp FIXME

2
include/libbb.h
View File

@ -26,4 +26,6 @@ int recursive_action(const char *fileName, unsigned flags,
char * safe_strncpy(char *dst, const char *src, size_t size);
int copy_file(const char *src, const char *dst);
#endif /* __LIBBB_H */

2
lib/Makefile
View File

@ -27,4 +27,4 @@ obj-$(CONFIG_GLOB) += fnmatch.o
obj-$(CONFIG_GENERIC_FIND_NEXT_BIT) += find_next_bit.o
obj-y += glob.o
obj-y += notifier.o
obj-y += copy_file.o

58
lib/copy_file.c Normal file
View File

@ -0,0 +1,58 @@
#include <common.h>
#include <fs.h>
#include <fcntl.h>
#include <errno.h>
#include <malloc.h>
#define RW_BUF_SIZE (ulong)4096
/**
* @param[in] src FIXME
* @param[out] dst FIXME
*/
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 (r < 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;
}