server-info: avoid calling fclose(3) twice in update_info_file()
commitfa1912c89a72fbd94591f4f5d522e5867ffe9bb6
authorRené Scharfe <l.s.r@web.de>
Sun, 16 Apr 2017 16:55:58 +0000 (16 18:55 +0200)
committerJunio C Hamano <gitster@pobox.com>
Tue, 18 Apr 2017 00:37:28 +0000 (17 17:37 -0700)
tree23ed30cd24661d62f4e5cb374f7f8166a059f413
parentbe686f03e0f4c4f14f1d4ae9b1b35836168a0a4b
server-info: avoid calling fclose(3) twice in update_info_file()

If an error occurs when or after closing the stream we call fclose(3)
again in the error handler.  The second call can exhibit undefined
behavior, so make sure to call fclose(3) at most once.  Also avoid
calling close(2) after fd has been successfully associated with the
stream, as fclose(3) has become responsible for doing that beyond
this point.

Found with Cppcheck.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
server-info.c