-
-void
-pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd)
-{
- unsigned int l, n;
- int pfd[2];
-
- if(!shell && !(shell = getenv("SHELL")))
- shell = "/bin/sh";
-
- if(!cmd)
- return;
-
- if(pipe(pfd) == -1) {
- perror("pipe");
- exit(1);
- }
-
- if(fork() == 0) {
- if(dpy)
- close(ConnectionNumber(dpy));
- setsid();
- dup2(pfd[1], STDOUT_FILENO);
- close(pfd[0]);
- close(pfd[1]);
- execlp(shell, shell, "-c", cmd, NULL);
- fprintf(stderr, "gridwm: execlp %s", cmd);
- perror(" failed");
- }
- else {
- n = 0;
- close(pfd[1]);
- while(l > n) {
- if((l = read(pfd[0], buf + n, len - n)) < 1)
- break;
- n += l;
- }
- close(pfd[0]);
- buf[n - 1] = 0;
- }
- wait(0);
-}