static void
waitchildren(const char *name, int waitall)
{
pid_t pid;
int status;
while ((pid = xwait(waitall || pids_full(), &status)) > 0) {
/* If we couldn't invoke the utility, exit. */
if (childerr != 0) {
errno = childerr;
err(errno == ENOENT ? 127 : 126, "%s", name);
}
/*
* If utility signaled or exited with a value of 255,
* exit 1-125.
*/
if (WIFSIGNALED(status))
errx(1, "%s: terminated with signal %d, aborting",
name, WTERMSIG(status));
if (WEXITSTATUS(status) == 255)
errx(1, "%s: exited with status 255, aborting", name);
if (WEXITSTATUS(status))
rval = 1;
}
if (pid == -1 && errno != ECHILD)
err(1, "waitpid");
}
static void
waitchildren(const char *name, int waitall)
{
pid_t pid;
int status;
int cause_exit = 0;
while ((pid = xwait(waitall || pids_full(), &status)) > 0) {
/*
* If we couldn't invoke the utility or if utility exited
* because of a signal or with a value of 255, warn (per
* POSIX), and then wait until all other children have
* exited before exiting 1-125. POSIX requires us to stop
* reading if child exits because of a signal or with 255,
* but it does not require us to exit immediately; waiting
* is preferable to orphaning.
*/
if (childerr != 0 && cause_exit == 0) {
errno = childerr;
waitall = 1;
cause_exit = ENOENT ? 127 : 126;
warn("%s", name);
} else if (WIFSIGNALED(status)) {
waitall = cause_exit = 1;
warnx("%s: terminated with signal %d; aborting",
name, WTERMSIG(status));
} else if (WEXITSTATUS(status) == 255) {
waitall = cause_exit = 1;
warnx("%s: exited with status 255; aborting", name);
} else if (WEXITSTATUS(status))
rval = 1;
}
if (cause_exit)
exit(cause_exit);
if (pid == -1 && errno != ECHILD)
err(1, "waitpid");
}
