| 33 |
|
return(0); |
| 34 |
|
if (pipe(p0) < 0 || pipe(p1) < 0) |
| 35 |
|
return(-1); |
| 36 |
< |
if ((pd->pid = vfork()) == 0) { /* if child */ |
| 36 |
> |
if ((pd->pid = fork()) == 0) { /* if child */ |
| 37 |
|
close(p0[1]); |
| 38 |
|
close(p1[0]); |
| 39 |
|
if (p0[0] != 0) { /* connect p0 to stdin */ |
| 67 |
|
{ |
| 68 |
|
int pid, status; |
| 69 |
|
|
| 70 |
+ |
if (!pd->running) |
| 71 |
+ |
return(0); |
| 72 |
|
close(pd->r); |
| 73 |
|
close(pd->w); |
| 74 |
|
pd->running = 0; |
| 75 |
< |
while ((pid = wait(&status)) != -1) |
| 76 |
< |
if (pid == pd->pid) |
| 75 |
< |
return(status>>8 & 0xff); |
| 75 |
> |
if (waitpid(pd->pid, &status, 0) == pd->pid) |
| 76 |
> |
return(status>>8 & 0xff); |
| 77 |
|
return(-1); /* ? unknown status */ |
| 78 |
|
} |
| 79 |
|
|
