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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 errors with ECHILD.
This commit is contained in:
Thomas Abraham 2019-05-06 14:26:14 -04:00
parent 8d39357c84
commit 82fa6eccf9
1 changed files with 2 additions and 0 deletions
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lib/spawn.c
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@ -68,6 +68,8 @@ int run_command (const char *cmd, const char *argv[],
do {
wpid = waitpid (pid, status, 0);
if ((pid_t)-1 == wpid && errno == ECHILD)
break;
} while ( ((pid_t)-1 == wpid && errno == EINTR)
|| ((pid_t)-1 != wpid && wpid != pid));