+
+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 | O_TRUNC, 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;
+}
+
+void summary_show(struct image_summary *summary, const char *imagefile,
+ const char *keydest)
+{
+ if (summary->sig_offset) {
+ printf("Signature written to '%s', node '%s'\n", imagefile,
+ summary->sig_path);
+ if (keydest) {
+ printf("Public key written to '%s', node '%s'\n",
+ keydest, summary->keydest_path);
+ }
+ }
+}