musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/popen.c b/src/stdio/popen.c
index 5a47509e..ca3cdf9d 100644
--- a/src/stdio/popen.c
+++ b/src/stdio/popen.c

@@ -42,7 +42,7 @@ FILE *popen(const char *cmd, const char *mode)

if (pid) {

__release_ptc();

__syscall(SYS_close, p[1-op]);

- sigprocmask(SIG_BLOCK, SIGALL_SET, &old);

+ sigprocmask(SIG_SETMASK, &old, 0);

if (pid < 0) {

fclose(f);

return 0;