1 files changed, 10 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/signal/sigprocmask.c b/libc-top-half/musl/src/signal/sigprocmask.c
new file mode 100644
index 0000000..297e20c
--- /dev/null
+++ b/libc-top-half/musl/src/signal/sigprocmask.c
@@ -0,0 +1,10 @@
+#include <signal.h>
+#include <errno.h>
+
+int sigprocmask(int how, const sigset_t *restrict set, sigset_t *restrict old)
+{
+	int r = pthread_sigmask(how, set, old);
+	if (!r) return r;
+	errno = r;
+	return -1;
+}