Create threads with a 32 KB stack rather than what happens to be the default.

On Linux, the default stack size is typically 8 MB.

Patch by Fabian Mauchle.

dtls.c

@@ -309,7 +309,7 @@ void dtlsserverrd(struct client *client) {
 
     debug(DBG_DBG, "dtlsserverrd: starting for %s", addr2string(client->addr));
 
-    if (pthread_create(&dtlsserverwrth, NULL, dtlsserverwr, (void *)client)) {
+    if (pthread_create(&dtlsserverwrth, &pthread_attr, dtlsserverwr, (void *)client)) {
 	debug(DBG_ERR, "dtlsserverrd: pthread_create failed");
 	return;
     }
@@ -512,7 +512,7 @@ void *udpdtlsserverrd(void *arg) {
 
 	    if (udp2bio(s, params->sesscache->rbios, cnt)) {
 		debug(DBG_DBG, "udpdtlsserverrd: got DTLS in UDP from %s", addr2string((struct sockaddr *)&from));
-		if (!pthread_create(&dtlsserverth, NULL, dtlsservernew, (void *)params)) {
+		if (!pthread_create(&dtlsserverth, &pthread_attr, dtlsservernew, (void *)params)) {
 		    pthread_detach(dtlsserverth);
 		    cacheexpire(sessioncache, &lastexpiry);
 		    continue;
@@ -701,10 +701,10 @@ void initextradtls() {
     }
 
     if (client4_sock >= 0)
-	if (pthread_create(&cl4th, NULL, udpdtlsclientrd, (void *)&client4_sock))
+	if (pthread_create(&cl4th, &pthread_attr, udpdtlsclientrd, (void *)&client4_sock))
 	    debugx(1, DBG_ERR, "pthread_create failed");
     if (client6_sock >= 0)
-	if (pthread_create(&cl6th, NULL, udpdtlsclientrd, (void *)&client6_sock))
+	if (pthread_create(&cl6th, &pthread_attr, udpdtlsclientrd, (void *)&client6_sock))
 	    debugx(1, DBG_ERR, "pthread_create failed");
 }
 #else

radsecproxy.c

@@ -1816,7 +1816,7 @@ void *clientwr(void *arg) {
 #if defined ENABLE_EXPERIMENTAL_DYNDISC
 	server->in_use = 1;
 #endif
-	if (pthread_create(&clientrdth, NULL, conf->pdef->clientconnreader, (void *)server)) {
+	if (pthread_create(&clientrdth, &pthread_attr, conf->pdef->clientconnreader, (void *)server)) {
 	    debugerrno(errno, DBG_ERR, "clientwr: pthread_create failed");
 	    goto errexit;
 	}
@@ -1975,7 +1975,7 @@ void createlistener(uint8_t type, char *arg) {
         if (!sp)
             debugx(1, DBG_ERR, "malloc failed");
 	*sp = s;
-	if (pthread_create(&th, NULL, protodefs[type]->listener, (void *)sp))
+	if (pthread_create(&th, &pthread_attr, protodefs[type]->listener, (void *)sp))
             debugerrnox(errno, DBG_ERR, "pthread_create failed");
 	pthread_detach(th);
     }
@@ -2225,7 +2225,7 @@ struct list *createsubrealmservers(struct realm *realm, struct list *srvconfs) {
 #if defined ENABLE_EXPERIMENTAL_DYNDISC
         	pthread_mutex_lock(&srvconf->servers->lock);
 #endif
-		if (pthread_create(&clientth, NULL, clientwr, (void *)(srvconf->servers))) {
+		if (pthread_create(&clientth, &pthread_attr, clientwr, (void *)(srvconf->servers))) {
 #if defined ENABLE_EXPERIMENTAL_DYNDISC
                     pthread_mutex_unlock(&srvconf->servers->lock);
 #endif
@@ -3344,6 +3344,11 @@ int radsecproxy_main(int argc, char **argv) {
     debug_init("radsecproxy");
     debug_set_level(DEBUG_LEVEL);
 
+    if (pthread_attr_init(&pthread_attr))
+	debugx(1, DBG_ERR, "pthread_attr_init failed");
+    if (pthread_attr_setstacksize(&pthread_attr, PTHREAD_STACK_SIZE))
+	debugx(1, DBG_ERR, "pthread_attr_setstacksize failed");
+
     for (i = 0; i < RAD_PROTOCOUNT; i++)
 	protodefs[i] = protoinits[i](i);
 
@@ -3395,7 +3400,7 @@ int radsecproxy_main(int argc, char **argv) {
     sigaddset(&sigset, SIGHUP);
     sigaddset(&sigset, SIGPIPE);
     pthread_sigmask(SIG_BLOCK, &sigset, NULL);
-    pthread_create(&sigth, NULL, sighandler, NULL);
+    pthread_create(&sigth, &pthread_attr, sighandler, NULL);
 
     for (entry = list_first(srvconfs); entry; entry = list_next(entry)) {
 	srvconf = (struct clsrvconf *)entry->data;
@@ -3403,7 +3408,7 @@ int radsecproxy_main(int argc, char **argv) {
 	    continue;
 	if (!addserver(srvconf))
 	    debugx(1, DBG_ERR, "failed to add server");
-	if (pthread_create(&srvconf->servers->clientth, NULL, clientwr,
+	if (pthread_create(&srvconf->servers->clientth, &pthread_attr, clientwr,
 			   (void *)(srvconf->servers)))
 	    debugx(1, DBG_ERR, "pthread_create failed");
     }

radsecproxy.h

@@ -28,6 +28,7 @@
 #define MAX_CERT_DEPTH 5
 #define STATUS_SERVER_PERIOD 25
 #define IDLE_TIMEOUT 300
+#define PTHREAD_STACK_SIZE 32768
 
 /* 27262 is vendor DANTE Ltd. */
 #define DEFAULT_TTL_ATTR "27262:1"
@@ -246,6 +247,7 @@ int radsrv(struct request *rq);
 void replyh(struct server *server, unsigned char *buf);
 struct addrinfo *resolve_hostport_addrinfo(uint8_t type, char *hostport);
 uint8_t *radattr2ascii(struct tlv *attr);
+pthread_attr_t pthread_attr;
 
 /* Local Variables: */
 /* c-file-style: "stroustrup" */

tcp.c

@@ -276,7 +276,7 @@ void tcpserverrd(struct client *client) {
 
     debug(DBG_DBG, "tcpserverrd: starting for %s", addr2string(client->addr));
 
-    if (pthread_create(&tcpserverwrth, NULL, tcpserverwr, (void *)client)) {
+    if (pthread_create(&tcpserverwrth, &pthread_attr, tcpserverwr, (void *)client)) {
 	debug(DBG_ERR, "tcpserverrd: pthread_create failed");
 	return;
     }
@@ -357,7 +357,7 @@ void *tcplistener(void *arg) {
 	    debug(DBG_WARN, "accept failed");
 	    continue;
 	}
-	if (pthread_create(&tcpserverth, NULL, tcpservernew, (void *)&s)) {
+	if (pthread_create(&tcpserverth, &pthread_attr, tcpservernew, (void *)&s)) {
 	    debug(DBG_ERR, "tcplistener: pthread_create failed");
 	    shutdown(s, SHUT_RDWR);
 	    close(s);

tls.c

@@ -339,7 +339,7 @@ void tlsserverrd(struct client *client) {
 
     debug(DBG_DBG, "tlsserverrd: starting for %s", addr2string(client->addr));
 
-    if (pthread_create(&tlsserverwrth, NULL, tlsserverwr, (void *)client)) {
+    if (pthread_create(&tlsserverwrth, &pthread_attr, tlsserverwr, (void *)client)) {
 	debug(DBG_ERR, "tlsserverrd: pthread_create failed");
 	return;
     }
@@ -460,7 +460,7 @@ void *tlslistener(void *arg) {
 	    debug(DBG_WARN, "accept failed");
 	    continue;
 	}
-	if (pthread_create(&tlsserverth, NULL, tlsservernew, (void *)&s)) {
+	if (pthread_create(&tlsserverth, &pthread_attr, tlsservernew, (void *)&s)) {
 	    debug(DBG_ERR, "tlslistener: pthread_create failed");
 	    shutdown(s, SHUT_RDWR);
 	    close(s);

udp.c

@@ -352,15 +352,15 @@ void initextraudp() {
     }
 
     if (client4_sock >= 0)
-	if (pthread_create(&cl4th, NULL, udpclientrd, (void *)&client4_sock))
+	if (pthread_create(&cl4th, &pthread_attr, udpclientrd, (void *)&client4_sock))
 	    debugx(1, DBG_ERR, "pthread_create failed");
     if (client6_sock >= 0)
-	if (pthread_create(&cl6th, NULL, udpclientrd, (void *)&client6_sock))
+	if (pthread_create(&cl6th, &pthread_attr, udpclientrd, (void *)&client6_sock))
 	    debugx(1, DBG_ERR, "pthread_create failed");
 
     if (find_clconf_type(handle, NULL)) {
 	server_replyq = newqueue();
-	if (pthread_create(&srvth, NULL, udpserverwr, (void *)server_replyq))
+	if (pthread_create(&srvth, &pthread_attr, udpserverwr, (void *)server_replyq))
 	    debugx(1, DBG_ERR, "pthread_create failed");
     }
 }