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#include "fork.h"
#include "strerr.h"
#include "wait.h"
#include "error.h"
#include "exit.h"
#define FATAL "except: fatal: "
void main(argc,argv)
int argc;
char **argv;
{
int pid;
int wstat;
if (!argv[1])
strerr_die1x(100,"except: usage: except program [ arg ... ]");
pid = fork();
if (pid == -1)
strerr_die2sys(111,FATAL,"unable to fork: ");
if (pid == 0) {
execvp(argv[1],argv + 1);
if (error_temp(errno)) _exit(111);
_exit(100);
}
if (wait_pid(&wstat,pid) == -1)
strerr_die2x(111,FATAL,"wait failed");
if (wait_crashed(wstat))
strerr_die2x(111,FATAL,"child crashed");
switch(wait_exitcode(wstat)) {
case 0: _exit(100);
case 111: strerr_die2x(111,FATAL,"temporary child error");
default: _exit(0);
}
}
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