1 files changed, 83 insertions, 0 deletions
diff --git a/util/amdfwtool/handle_file.c b/util/amdfwtool/handle_file.c
index 884f1ba709..c37bb2c8eb 100644
--- a/util/amdfwtool/handle_file.c
+++ b/util/amdfwtool/handle_file.c
@@ -82,3 +82,86 @@ ssize_t write_from_buf_to_file(int fd, const void *buf, size_t buf_size)
 
 	return buf_size;
 }
+
+ssize_t write_body(char *output, void *body_offset, ssize_t body_size)
+{
+	char body_name[PATH_MAX], body_tmp_name[PATH_MAX];
+	int ret;
+	int fd;
+	ssize_t bytes = -1;
+
+	/* Create a tmp file and rename it at the end so that make does not get confused
+	   if amdfwtool is killed for some unexpected reasons. */
+	ret = snprintf(body_tmp_name, sizeof(body_tmp_name), "%s%s%s",
+			output, BODY_FILE_SUFFIX, TMP_FILE_SUFFIX);
+	if (ret < 0) {
+		fprintf(stderr, "Error %s forming BODY tmp file name: %d\n",
+							strerror(errno), ret);
+		return -1;
+	} else if ((unsigned int)ret >= sizeof(body_tmp_name)) {
+		fprintf(stderr, "BODY File name %d  > %zu\n", ret, sizeof(body_tmp_name));
+		return -1;
+	}
+
+	fd = open(body_tmp_name, O_RDWR | O_CREAT | O_TRUNC, 0666);
+	if (fd < 0) {
+		fprintf(stderr, "Error: Opening %s file: %s\n", body_tmp_name, strerror(errno));
+		return -1;
+	}
+
+	bytes = write_from_buf_to_file(fd, body_offset, body_size);
+	if (bytes != body_size) {
+		fprintf(stderr, "Error: Writing to file %s failed\n", body_tmp_name);
+		return -1;
+	}
+	close(fd);
+
+	/* Rename the tmp file */
+	ret = snprintf(body_name, sizeof(body_name), "%s%s", output, BODY_FILE_SUFFIX);
+	if (ret < 0) {
+		fprintf(stderr, "Error %s forming BODY file name: %d\n", strerror(errno), ret);
+		return -1;
+	}
+
+	if (rename(body_tmp_name, body_name)) {
+		fprintf(stderr, "Error: renaming file %s to %s\n", body_tmp_name, body_name);
+		return -1;
+	}
+
+	return bytes;
+}
+
+ssize_t copy_blob(void *dest, const char *src_file, size_t room)
+{
+	int fd;
+	struct stat fd_stat;
+	ssize_t bytes;
+
+	fd = open(src_file, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Error opening file: %s: %s\n",
+		       src_file, strerror(errno));
+		return -1;
+	}
+
+	if (fstat(fd, &fd_stat)) {
+		fprintf(stderr, "fstat error: %s\n", strerror(errno));
+		close(fd);
+		return -2;
+	}
+
+	if ((size_t)fd_stat.st_size > room) {
+		fprintf(stderr, "Error: %s will not fit.  Exiting.\n", src_file);
+		close(fd);
+		return -3;
+	}
+
+	bytes = read(fd, dest, (size_t)fd_stat.st_size);
+	close(fd);
+	if (bytes != (ssize_t)fd_stat.st_size) {
+		fprintf(stderr, "Error while reading %s\n", src_file);
+		return -4;
+	}
+
+	return bytes;
+}