1 files changed, 23 insertions, 0 deletions
diff --git a/write_or_die.c b/write_or_die.c
index bfe4eeb649..650f13fc01 100644
--- a/write_or_die.c
+++ b/write_or_die.c
@@ -43,3 +43,26 @@ int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
 
 	return 1;
 }
+
+int write_in_full(int fd, const void *buf, size_t count, const char *msg)
+{
+	const char *p = buf;
+	ssize_t written;
+
+	while (count > 0) {
+		written = xwrite(fd, p, count);
+		if (written == 0) {
+			fprintf(stderr, "%s: disk full?\n", msg);
+			return 0;
+		}
+		else if (written < 0) {
+			fprintf(stderr, "%s: write error (%s)\n",
+				msg, strerror(errno));
+			return 0;
+		}
+		count -= written;
+		p += written;
+	}
+
+	return 1;
+}