From ac3faa6a169be36d2d49554fea4503755d08fef4 Mon Sep 17 00:00:00 2001
From: SilvanScherrer <silvan.scherrer@aroa.ch>
Date: Mon, 6 Jan 2020 11:26:11 +0100
Subject: [PATCH] fix return of pthread_sigmask, as it needs to be errno in
 case of a error and not what sigprocmask gives back

---
 src/Makefile.kmk      |  1 +
 src/pthread.def       |  1 +
 src/pthread.h         |  3 ++-
 src/pthread_sigmask.c | 10 ++++++++++
 4 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 src/pthread_sigmask.c

diff --git a/src/Makefile.kmk b/src/Makefile.kmk
index c65b30b..fddbdc0 100644
--- a/src/Makefile.kmk
+++ b/src/Makefile.kmk
@@ -20,6 +20,7 @@ LIBRARIES = pthread_s pthread_g pthread_dll
 
 pthread_s_SOURCES = \
 	pthread_attr.c \
+	pthread_sigmask.c \
 	rwlock.c \
 	my_os2cond.c \
 	my_os2mutex.c \
diff --git a/src/pthread.def b/src/pthread.def
index 79e301a..547d047 100644
--- a/src/pthread.def
+++ b/src/pthread.def
@@ -62,3 +62,4 @@ _pthread_rwlock_tryrdlock
 _pthread_rwlock_rdlock
 _pthread_rwlock_trywrlock
 _pthread_rwlock_wrlock
+_pthread_sigmask
diff --git a/src/pthread.h b/src/pthread.h
index f93efd4..25f6884 100644
--- a/src/pthread.h
+++ b/src/pthread.h
@@ -4,6 +4,7 @@
 
 #include <errno.h>
 #include <time.h>
+#include <signal.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -91,7 +92,7 @@ void  pthread_setprio( int, int);
 int pthread_detach (pthread_t thread);
 int pthread_kill (pthread_t thread, int sig);
 
-#define pthread_sigmask(A,B,C) sigprocmask((A),(B),(C))
+int pthread_sigmask(int, const sigset_t *, sigset_t *);
 
 /*
  * PThread Attribute Functions
diff --git a/src/pthread_sigmask.c b/src/pthread_sigmask.c
new file mode 100644
index 0000000..bded344
--- /dev/null
+++ b/src/pthread_sigmask.c
@@ -0,0 +1,10 @@
+#include <errno.h>
+#include <signal.h>
+
+#include "pthread.h"
+
+int pthread_sigmask(int how, const sigset_t *newmask, sigset_t *oldmask)
+{
+  return sigprocmask(how, newmask, oldmask) == -1 ? errno : 0;
+}
+