From 171417732fb420345e67987614021f0e9f47992d Mon Sep 17 00:00:00 2001 From: Ingo Schwarze Date: Sat, 18 Jul 2015 03:41:37 +0000 Subject: clean up the temporary file when the process dies from a signal --- tag.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'tag.c') diff --git a/tag.c b/tag.c index f281b81f..69f4e422 100644 --- a/tag.c +++ b/tag.c @@ -1,4 +1,4 @@ -/* $Id: tag.c,v 1.1 2015/07/17 22:38:29 schwarze Exp $ */ +/* $Id: tag.c,v 1.2 2015/07/18 03:41:37 schwarze Exp $ */ /* * Copyright (c) 2015 Ingo Schwarze * @@ -16,6 +16,7 @@ */ #include +#include #include #include #include @@ -36,6 +37,7 @@ struct tag_entry { char s[]; }; +static void tag_signal(int); static void *tag_alloc(size_t, void *); static void tag_free(void *, void *); static void *tag_calloc(size_t, size_t, void *); @@ -56,6 +58,9 @@ tag_init(void) struct ohash_info tag_info; tag_fn = mandoc_strdup("/tmp/man.XXXXXXXXXX"); + signal(SIGHUP, tag_signal); + signal(SIGINT, tag_signal); + signal(SIGTERM, tag_signal); if ((tag_fd = mkstemp(tag_fn)) == -1) { free(tag_fn); tag_fn = NULL; @@ -158,6 +163,17 @@ tag_unlink(void) unlink(tag_fn); } +static void +tag_signal(int signum) +{ + + tag_unlink(); + signal(signum, SIG_DFL); + kill(getpid(), signum); + /* NOTREACHED */ + _exit(1); +} + /* * Memory management callback functions for ohash. */ -- cgit v1.2.3-56-ge451