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protocol: set the pty file descriptor non blocking

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Shuanglei Tao
2019-04-21 10:22:37 +08:00
parent 14670ed9f5
commit 4cd6d480d6
1 changed files with 44 additions and 45 deletions
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29
src/protocol.c
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@@ -187,24 +187,25 @@ thread_run_command(void *args) {
int pty;
fd_set des_set;
pid_t pid = forkpty(&pty, NULL, NULL, NULL);
switch (pid) {
case -1: /* error */
lwsl_err("forkpty, error: %d (%s)\n", errno, strerror(errno));
break;
case 0: /* child */
if (setenv("TERM", server->terminal_type, true) < 0) {
perror("setenv");
if (pid < 0) { /* error */
lwsl_err("forkpty failed: %d (%s)\n", errno, strerror(errno));
pthread_exit((void *) 1);
}
} else if (pid == 0) { /* child */
setenv("TERM", server->terminal_type, true);
// Don't pass the web socket onto child processes
close(lws_get_socket_fd(client->wsi));
if (execvp(argv[0], argv) < 0) {
perror("execvp");
pthread_exit((void *) 1);
perror("execvp failed\n");
_exit(-errno);
}
break;
default: /* parent */
}
// set the pty file descriptor non blocking
int status_flags = fcntl(pty, F_GETFL);
if (status_flags != -1) {
fcntl(pty, F_SETFL, status_flags | O_NONBLOCK);
}
lwsl_notice("started process, pid: %d\n", pid);
client->pid = pid;
client->pty = pty;
@@ -236,8 +237,6 @@ thread_run_command(void *args) {
if (client->pty_len <= 0) break;
}
break;
}
pthread_exit((void *) 0);
}