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lib/spawn.c run_command: don't loop forever if waitpid() is returning ECHILD

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If SIGCHILD is being ignored, waitpid() will forever error with ECHILD and
this loop with never end, so don't loop if it erros with ECHILD.
This commit is contained in:
Thomas Abraham 2019-04-25 14:56:22 -04:00
parent 5837240451
commit 1697c192ac
1 changed files with 3 additions and 2 deletions
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5
lib/spawn.c
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@ -68,8 +68,9 @@ int run_command (const char *cmd, const char *argv[],
do {
wpid = waitpid (pid, status, 0);
} while ( ((pid_t)-1 == wpid && errno == EINTR)
|| ((pid_t)-1 != wpid && wpid != pid));
} while ( ((pid_t)-1 == wpid && errno != ECHILD)
&& (((pid_t)-1 == wpid && errno == EINTR)
|| ((pid_t)-1 != wpid && wpid != pid)));
if ((pid_t)-1 == wpid) {
fprintf (stderr, "%s: waitpid (status: %d): %s\n",