From: Alex Riesen <raa.lkml@gmail.com>
Date: Tue, 11 Dec 2007 22:01:28 +0000 (+0100)
Subject: Fix git-fast-export for zero-sized blobs
X-Git-Tag: v1.5.4-rc0~13
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/b0fe0d7258951779b790190b10ca21ffc5573546

Fix git-fast-export for zero-sized blobs

Writing 1 elements of size 0-byte successfully will cause fwrite(3) to
return 0, and flagging it as error is a mistake.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/builtin-fast-export.c b/builtin-fast-export.c
index 2136aadfd7..ef27eee71b 100755
--- a/builtin-fast-export.c
+++ b/builtin-fast-export.c
@@ -103,7 +103,7 @@ static void handle_object(const unsigned char *sha1)
 	mark_object(object);
 
 	printf("blob\nmark :%d\ndata %lu\n", last_idnum, size);
-	if (fwrite(buf, size, 1, stdout) != 1)
+	if (size && fwrite(buf, size, 1, stdout) != 1)
 		die ("Could not write blob %s", sha1_to_hex(sha1));
 	printf("\n");