sha1_file.c (write_sha1_from_fd): Detect close failure.

I stumbled across this in the context of the fchmod 0444 patch.
At first, I was going to unlink and call error like the two subsequent
tests do, but a failed write (above) provokes a "die", so I made
this do the same.  This is testing for a write failure, after all.

Signed-off-by: Jim Meyering <jim@meyering.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/sha1_file.c b/sha1_file.c
index 0897b945e5dace8189adc35e6eea389cfc7606af..42aef331f2e028d625dd2f6354cda2dfd55e71e0 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2155,7 +2155,8 @@ int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer,
        inflateEnd(&stream);
 
        fchmod(local, 0444);
-       close(local);
+       if (close(local) != 0)
+               die("unable to write sha1 file");
        SHA1_Final(real_sha1, &c);
        if (ret != Z_STREAM_END) {
                unlink(tmpfile);