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#include <unistd.h>
#include "exit.h"
#include "logmsg.h"
#include "wait.h"
#define WHO "except"
int main(int argc, char **argv)
{
int pid;
int wstat;
if (!argv[1]) logmsg(WHO, 100, USAGE, "except program [ arg ... ]");
pid = fork();
if (pid == -1) logmsg(WHO, 111, FATAL, "unable to fork: ");
if (pid == 0) {
execvp(argv[1], argv + 1);
if (errno) _exit(111);
_exit(100);
}
if (wait_pid(&wstat, pid) == -1) logmsg(WHO, 111, FATAL, "wait failed");
if (wait_crashed(wstat)) logmsg(WHO, 111, FATAL, "child crashed");
switch (wait_exitcode(wstat)) {
case 0: _exit(100);
case 111: logmsg(WHO, 111, FATAL, "temporary child error");
default: _exit(0);
}
}
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