[dev] [st] [PATCH] Fix sigchld

[Jochen Sprickerhof]

Only wait for termination of the shell.
---
 st.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/st.c b/st.c
index 0204b2e..1615609 100644
--- a/st.c
+++ b/st.c
@@ -1245,10 +1245,14 @@ 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);
-- 
2.1.4

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