builtin-mailinfo.c: check error status from rewind and ftruncate
A recent "cut at scissors" implementation rewinds and truncates
the output file to store the message when it sees a scissors mark,
but it did not check if these library calls succeeded.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
[sp: Use fseek as rewind returns void]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c
index d498b1c..c90cd31 100644
--- a/builtin-mailinfo.c
+++ b/builtin-mailinfo.c
@@ -785,8 +785,10 @@
if (use_scissors && is_scissors_line(line)) {
int i;
- rewind(cmitmsg);
- ftruncate(fileno(cmitmsg), 0);
+ if (fseek(cmitmsg, 0L, SEEK_SET))
+ die_errno("Could not rewind output message file");
+ if (ftruncate(fileno(cmitmsg), 0))
+ die_errno("Could not truncate output message file at scissors");
still_looking = 1;
/*
