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Only install default handlers for SIGTERM and SIGWAIT if we haven't installed

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other handlers already.
This commit is contained in:
Brian Wellington 2000-07-12 01:46:57 +00:00
parent 473cb90680
commit a6f31a3fd0
1 changed files with 7 additions and 2 deletions
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9
lib/isc/unix/app.c
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@ -15,7 +15,7 @@
* SOFTWARE.
*/
/* $Id: app.c,v 1.20 2000/07/11 19:18:05 bwelling Exp $ */
/* $Id: app.c,v 1.21 2000/07/12 01:46:57 bwelling Exp $ */
#include <config.h>
@ -154,17 +154,22 @@ isc_app_start(void) {
* will not cause sigwait() to return. We may have inherited
* unexpected actions for SIGHUP, SIGINT, and SIGTERM from our parent
* process, * (e.g, Solaris cron). Set an action of SIG_DFL to make
* sure sigwait() works as expected.
* sure sigwait() works as expected. Only do this for SIGTERM and
* SIGINT if we don't have sigwait(), since a different handler is
* installed above.
*/
result = handle_signal(SIGHUP, SIG_DFL);
if (result != ISC_R_SUCCESS)
return (result);
#ifdef HAVE_SIGWAIT
result = handle_signal(SIGTERM, SIG_DFL);
if (result != ISC_R_SUCCESS)
return (result);
result = handle_signal(SIGINT, SIG_DFL);
if (result != ISC_R_SUCCESS)
return (result);
#endif
/*
* Block SIGHUP, SIGINT, SIGTERM.