- Fix crash upon configuration reload

PR:		ports/67419
Submitted by:	Cyril Guibourg <aragorn+ports@teaser.fr> (maintainer)
Obtained from:	author

1 files changed, 71 insertions, 0 deletions

diff --git a/mail/milter-greylist/files/patch-conf.c b/mail/milter-greylist/files/patch-conf.c
new file mode 100644
index 00000000000..87658b33671
--- /dev/null
+++ b/mail/milter-greylist/files/patch-conf.c
@@ -0,0 +1,71 @@
+--- conf.c.orig	Fri Apr  2 17:06:52 2004
++++ conf.c	Mon May 31 16:58:06 2004
+@@ -34,7 +34,7 @@
+ #ifdef HAVE_SYS_CDEFS_H
+ #include <sys/cdefs.h>
+ #ifdef __RCSID
+-__RCSID("$Id: conf.c,v 1.15 2004/04/02 15:06:52 manu Exp $");
++__RCSID("$Id: conf.c,v 1.15 (sigsev patch) 2004/04/02 15:06:52 manu Exp $");
+ #endif
+ #endif
+ 
+@@ -83,6 +83,8 @@
+ conf_load(void) 	/* exceptlist must be write-locked */
+ {
+ 	FILE *stream;
++	pthread_t tid;
++	pthread_attr_t attr;
+ 
+ 	/*
+ 	 * Reset the configuration to its default 
+@@ -100,8 +102,49 @@
+ 		return;
+ 	}
+ 
++	/*
++	 * On some platforms, the thread stack limit is too low and
++	 * conf_parse will get a SIGSEGV because it overflows the
++	 * stack.
++	 *
++	 * In order to fix this, we spawn a new thread just for 
++	 * parsing the config file, and we request a stack big 
++	 * enough to hold the parser data. 2 MB seems okay.
++	 */
++
+ 	conf_in = stream;
+-	conf_parse();
++
++	if (pthread_attr_init(&attr) != 0) {
++		syslog(LOG_ERR, "pthread_attr_init failed: %s", 
++		strerror(errno));
++		exit(EX_OSERR);
++	}
++
++	if (pthread_attr_setstacksize(&attr, 2 * 1024 * 1024) != 0) {
++		syslog(LOG_ERR, "pthread_attr_setstacksize failed: %s",
++		strerror(errno));
++		exit(EX_OSERR);
++	}
++
++	if (pthread_create(&tid, &attr, 
++		(void *(*)(void *))conf_parse, NULL) != 0) {
++		syslog(LOG_ERR, "pthread_create failed: %s", 
++		strerror(errno));
++		exit(EX_OSERR);
++	}
++
++	if (pthread_join(tid, NULL) != 0) {
++		syslog(LOG_ERR, "pthread_join failed: %s",
++		strerror(errno));
++		exit(EX_OSERR);
++	}
++
++	if (pthread_attr_destroy(&attr) != 0) {
++		syslog(LOG_ERR, "pthread_attr_destroy failed: %s",
++		strerror(errno));
++		exit(EX_OSERR);
++	}
++
+ 	fclose(stream);
+ 
+ 	(void)gettimeofday(&conffile_modified, NULL);