--- rpl/src/instructions_r6.c	2013/05/30 09:41:41	1.52
+++ rpl/src/instructions_r6.c	2019/02/11 09:45:51	1.76
@@ -1,7 +1,7 @@
 /*
 ================================================================================
-  RPL/2 (R) version 4.1.14
-  Copyright (C) 1989-2013 Dr. BERTRAND Joël
+  RPL/2 (R) version 4.1.31
+  Copyright (C) 1989-2019 Dr. BERTRAND Joël
 
   This file is part of RPL/2.
 
@@ -346,8 +346,14 @@ instruction_recv(struct_processus *s_eta
 			return;
 		}
 
+		if (pthread_mutex_lock(&mutex_sigaction) != 0)
+		{
+			(*s_etat_processus).erreur_systeme = d_es_processus;
+			return;
+		}
+
 		action.sa_handler = SIG_IGN;
-		action.sa_flags = SA_ONSTACK;
+		action.sa_flags = 0;
 
 		if (sigaction(SIGPIPE, &action, &registre) != 0)
 		{
@@ -370,6 +376,7 @@ instruction_recv(struct_processus *s_eta
 				profilage(s_etat_processus, NULL);
 			}
 
+			pthread_mutex_unlock(&mutex_sigaction);
 			(*s_etat_processus).erreur_systeme = d_es_signal;
 			return;
 		}
@@ -380,6 +387,7 @@ instruction_recv(struct_processus *s_eta
 			if (sem_post((*s_etat_processus).semaphore_fork) != 0)
 #		endif
 		{
+			pthread_mutex_unlock(&mutex_sigaction);
 			(*s_etat_processus).erreur_systeme = d_es_processus;
 			return;
 		}
@@ -404,6 +412,7 @@ instruction_recv(struct_processus *s_eta
 		{
 			if (errno != EINTR)
 			{
+				pthread_mutex_unlock(&mutex_sigaction);
 				(*s_etat_processus).erreur_systeme = d_es_processus;
 				return;
 			}
@@ -433,6 +442,12 @@ instruction_recv(struct_processus *s_eta
 			return;
 		}
 
+		if (pthread_mutex_unlock(&mutex_sigaction) != 0)
+		{
+			(*s_etat_processus).erreur_systeme = d_es_processus;
+			return;
+		}
+
 		if (pthread_mutex_unlock(&((*s_etat_processus).mutex_pile_processus))
 				!= 0)
 		{
@@ -1352,7 +1367,7 @@ instruction_rdgn(struct_processus *s_eta
 
 	if ((*s_objet_argument).type == CHN)
 	{
-		if ((requete = conversion_majuscule((unsigned char *)
+		if ((requete = conversion_majuscule(s_etat_processus, (unsigned char *)
 				(*s_objet_argument).objet)) == NULL)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
@@ -1388,7 +1403,7 @@ instruction_rdgn(struct_processus *s_eta
 			else
 			{
 				if (((*s_objet_resultat).objet = conversion_majuscule(
-						(unsigned char *) gsl_rng_name(
+						s_etat_processus, (unsigned char *) gsl_rng_name(
 						(*s_etat_processus).generateur_aleatoire))) == NULL)
 				{
 					(*s_etat_processus).erreur_systeme =
@@ -1642,15 +1657,15 @@ instruction_recode(struct_processus *s_e
 			((*s_objet_argument_2).type == CHN) &&
 			((*s_objet_argument_3).type == CHN))
 	{
-		if ((encodage_source = conversion_majuscule((unsigned char *)
-				(*s_objet_argument_2).objet)) == NULL)
+		if ((encodage_source = conversion_majuscule(s_etat_processus,
+				(unsigned char *) (*s_objet_argument_2).objet)) == NULL)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
 			return;
 		}
 
-		if ((encodage_destination = conversion_majuscule((unsigned char *)
-				(*s_objet_argument_1).objet)) == NULL)
+		if ((encodage_destination = conversion_majuscule(s_etat_processus,
+				(unsigned char *) (*s_objet_argument_1).objet)) == NULL)
 		{
 			(*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
 			return;