From 6c642a878688adf46b226903858b53e2d31ac5c3 Mon Sep 17 00:00:00 2001 From: Filipe Cabecinhas Date: Fri, 10 May 2013 15:24:57 -0700 Subject: compate/clipped-write.c: large write(2) fails on Mac OS X/XNU Due to a bug in the Darwin kernel, write(2) calls have a maximum size of INT_MAX bytes. Introduce a new compat function, clipped_write(), that only writes at most INT_MAX bytes and returns the number of bytes written, as a substitute for write(2), and allow platforms that need this to enable it from the build mechanism with NEEDS_CLIPPED_WRITE. Set it for Mac OS X by default. It may be necessary to include this function on Windows, too. Signed-off-by: Filipe Cabecinhas Signed-off-by: Junio C Hamano --- compat/clipped-write.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 compat/clipped-write.c (limited to 'compat') diff --git a/compat/clipped-write.c b/compat/clipped-write.c new file mode 100644 index 0000000000..b8f98ff77f --- /dev/null +++ b/compat/clipped-write.c @@ -0,0 +1,13 @@ +#include "../git-compat-util.h" +#undef write + +/* + * Version of write that will write at most INT_MAX bytes. + * Workaround a xnu bug on Mac OS X + */ +ssize_t clipped_write(int fildes, const void *buf, size_t nbyte) +{ + if (nbyte > INT_MAX) + nbyte = INT_MAX; + return write(fildes, buf, nbyte); +} -- cgit v1.2.3