/* Minimal TCP listener on 127.0.0.1:139 — accept + hold connections so the
 * smb iod SMB_TRAN_CONNECT() succeeds at the TCP level. Lets SMBIOC_LOOKUP
 * get past the iod connect step so we can reach smbfs_mount. */
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
int main(void){
    int s, c, on=1;
    struct sockaddr_in sa;
    signal(SIGPIPE, SIG_IGN);
    s = socket(AF_INET, SOCK_STREAM, 0);
    setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
    memset(&sa, 0, sizeof(sa));
    sa.sin_family = AF_INET;
    sa.sin_port = htons(139);
    sa.sin_addr.s_addr = htonl(0x7f000001); /* 127.0.0.1 */
    if (bind(s, (struct sockaddr*)&sa, sizeof(sa)) < 0) { perror("bind"); return 1; }
    listen(s, 5);
    printf("[fake139] listening on 127.0.0.1:139\n"); fflush(stdout);
    while (1) {
        c = accept(s, NULL, NULL);
        if (c < 0) continue;
        printf("[fake139] accepted conn\n"); fflush(stdout);
        /* hold the connection open; let the smb side time out on negotiate */
        sleep(30);
        close(c);
    }
    return 0;
}