Fix sigchld

Only wait for termination of the shell.

1 files changed, 5 insertions, 1 deletions

diff --git a/st.c b/st.c
index d954288..300cab6 100644
--- a/st.c
+++ b/st.c
@@ -1238,10 +1238,14 @@ execsh(void) {
 void
 sigchld(int a) {
         int stat, ret;
+        pid_t p;
 
-        if(waitpid(pid, &stat, 0) < 0)
+        if((p = waitpid(pid, &stat, WNOHANG)) < 0)
                 die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
+        if(pid != p)
+                return;
+
         ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
         if (ret != EXIT_SUCCESS)
                 die("child finished with error '%d'\n", stat);