tools: Move copyfile() into a common file
This function is useful in other places. Move it to a common file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/fit_common.c b/tools/fit_common.c
index 5c8920d..4370de2 100644
--- a/tools/fit_common.c
+++ b/tools/fit_common.c
@@ -119,3 +119,59 @@
return -1;
}
+
+int copyfile(const char *src, const char *dst)
+{
+ int fd_src = -1, fd_dst = -1;
+ void *buf = NULL;
+ ssize_t size;
+ size_t count;
+ int ret = -1;
+
+ fd_src = open(src, O_RDONLY);
+ if (fd_src < 0) {
+ printf("Can't open file %s (%s)\n", src, strerror(errno));
+ goto out;
+ }
+
+ fd_dst = open(dst, O_WRONLY | O_CREAT, 0666);
+ if (fd_dst < 0) {
+ printf("Can't open file %s (%s)\n", dst, strerror(errno));
+ goto out;
+ }
+
+ buf = calloc(1, 512);
+ if (!buf) {
+ printf("Can't allocate buffer to copy file\n");
+ goto out;
+ }
+
+ while (1) {
+ size = read(fd_src, buf, 512);
+ if (size < 0) {
+ printf("Can't read file %s\n", src);
+ goto out;
+ }
+ if (!size)
+ break;
+
+ count = size;
+ size = write(fd_dst, buf, count);
+ if (size < 0) {
+ printf("Can't write file %s\n", dst);
+ goto out;
+ }
+ }
+
+ ret = 0;
+
+ out:
+ if (fd_src >= 0)
+ close(fd_src);
+ if (fd_dst >= 0)
+ close(fd_dst);
+ if (buf)
+ free(buf);
+
+ return ret;
+}
diff --git a/tools/fit_common.h b/tools/fit_common.h
index 0e8ee79..872d8af 100644
--- a/tools/fit_common.h
+++ b/tools/fit_common.h
@@ -39,4 +39,15 @@
void **blobp, struct stat *sbuf, bool delete_on_error,
bool read_only);
+/**
+ * copyfile() - Copy a file
+ *
+ * This uses read()/write() to copy file @src to file @dst
+ *
+ * @src: Filename to read from
+ * @dst: Filename to write to
+ * @return 0 if OK, -1 on error
+ */
+int copyfile(const char *src, const char *dst);
+
#endif /* _FIT_COMMON_H_ */
diff --git a/tools/fit_image.c b/tools/fit_image.c
index 9ac5256..0e31f7d 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -656,62 +656,6 @@
return ret;
}
-static int copyfile(const char *src, const char *dst)
-{
- int fd_src = -1, fd_dst = -1;
- void *buf = NULL;
- ssize_t size;
- size_t count;
- int ret = -1;
-
- fd_src = open(src, O_RDONLY);
- if (fd_src < 0) {
- printf("Can't open file %s (%s)\n", src, strerror(errno));
- goto out;
- }
-
- fd_dst = open(dst, O_WRONLY | O_CREAT, 0666);
- if (fd_dst < 0) {
- printf("Can't open file %s (%s)\n", dst, strerror(errno));
- goto out;
- }
-
- buf = calloc(1, 512);
- if (!buf) {
- printf("Can't allocate buffer to copy file\n");
- goto out;
- }
-
- while (1) {
- size = read(fd_src, buf, 512);
- if (size < 0) {
- printf("Can't read file %s\n", src);
- goto out;
- }
- if (!size)
- break;
-
- count = size;
- size = write(fd_dst, buf, count);
- if (size < 0) {
- printf("Can't write file %s\n", dst);
- goto out;
- }
- }
-
- ret = 0;
-
- out:
- if (fd_src >= 0)
- close(fd_src);
- if (fd_dst >= 0)
- close(fd_dst);
- if (buf)
- free(buf);
-
- return ret;
-}
-
/**
* fit_handle_file - main FIT file processing function
*