diff --git a/ssh-upload.c b/ssh-upload.c
index 901e036..86b169b 100644
--- a/ssh-upload.c
+++ b/ssh-upload.c
@@ -21,17 +21,14 @@
 	ssize_t size;
 	unsigned char sha1[20];
 	signed char remote;
-	int posn = 0;
-	do {
-		size = read(fd_in, sha1 + posn, 20 - posn);
-		if (size < 0) {
-			perror("git-ssh-upload: read ");
-			return -1;
-		}
-		if (!size)
-			return -1;
-		posn += size;
-	} while (posn < 20);
+
+	size = read_in_full(fd_in, sha1, 20);
+	if (size < 0) {
+		perror("git-ssh-upload: read ");
+		return -1;
+	}
+	if (!size)
+		return -1;
 	
 	if (verbose)
 		fprintf(stderr, "Serving %s\n", sha1_to_hex(sha1));
@@ -54,7 +51,7 @@
 
 static int serve_version(int fd_in, int fd_out)
 {
-	if (read(fd_in, &remote_version, 1) < 1)
+	if (xread(fd_in, &remote_version, 1) < 1)
 		return -1;
 	write(fd_out, &local_version, 1);
 	return 0;
@@ -67,7 +64,7 @@
 	int posn = 0;
 	signed char remote = 0;
 	do {
-		if (posn >= PATH_MAX || read(fd_in, ref + posn, 1) < 1)
+		if (posn >= PATH_MAX || xread(fd_in, ref + posn, 1) < 1)
 			return -1;
 		posn++;
 	} while (ref[posn - 1]);
@@ -89,7 +86,7 @@
 	char type;
 	int retval;
 	do {
-		retval = read(fd_in, &type, 1);
+		retval = xread(fd_in, &type, 1);
 		if (retval < 1) {
 			if (retval < 0)
 				perror("git-ssh-upload: read ");