util: add safe_read_all() and safe_write_all() functions.

1 files changed, 1 insertions, 11 deletions

diff --git a/bar.c b/bar.c
index 67f5d6e..33127f8 100644
--- a/bar.c
+++ b/bar.c
@@ -58,17 +58,7 @@ static int bfs_bar_getsize(struct bfs_bar *bar) {
 /** Async Signal Safe puts(). */
 static int ass_puts(int fd, const char *str) {
 	size_t len = strlen(str);
-
-	while (len > 0) {
-		ssize_t ret = safe_write(fd, str, len);
-		if (ret <= 0) {
-			return -1;
-		}
-		str += ret;
-		len -= ret;
-	}
-
-	return 0;
+	return safe_write_all(fd, str, len) == (ssize_t)len ? 0 : -1;
 }
 
 /** Number of decimal digits needed for terminal sizes. */