/*
 *
 * Copyright 2023 Oleg Borodin  <borodin@unix7.org>
 *
 */


#include <stdio.h>
#include <sys/param.h>
#include <sys/jail.h>


#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/sysctl.h>

#include <arpa/inet.h>
#include <netinet/in.h>

#include <err.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <fcntl.h>

//#include <sys/types.h>
//#include <sys/socket.h>
//#include <ifaddrs.h>

//#include <sys/types.h>
//#include <sys/sysctl.h>
//#include <vm/vm_param.h>
//#include <sys/user.h>

#include <sys/wait.h>



int copy(int srcfd, int dstfd) {
        char buffer[1024];
        int n = 0;
        while ((n = read(srcfd, buffer, sizeof(buffer) - 1)) != 0) {
                buffer[n] = '\0';
                write(dstfd, buffer, n);
        }
        return 0;
}

int exec() {

        char* cmd = "/foo1";
        char* basepath = "./newroot";
        char* v4addr = "192.168.52.7";
        char* hostname = "localhost";
        char* logpath = "output.log";

        int logfd;
        if ((logfd = open(logpath, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR)) < 0) {
                return -errno;
        }

        pid_t childpid = 0;

        int stdoutfd[2];

        if (pipe(stdoutfd) < 0) {
                return -errno;
        }

        if((childpid = fork()) < 0) {
                return -errno;
        }

        if (childpid == 0) {
                /* child */
                close(stdoutfd[0]);
                dup2(stdoutfd[1], STDOUT_FILENO);
                dup2(stdoutfd[1], STDERR_FILENO);

                struct in_addr inaddr;
                inet_pton(AF_INET, v4addr, &inaddr);

                struct jail j = {
                        .version = JAIL_API_VERSION,
                        .path = basepath,
                        .hostname = hostname,
                        .jailname = "test",
                        .ip4s = 1,
                        .ip6s = 0,
                        .ip4 = &inaddr,
                        .ip6 = NULL
                };
                int id = 0;
                if ((id = jail(&j)) < 0) {
                        return -1;
                }
                if (execl(cmd, cmd, NULL) < 0) {
                        return -1;
                }
        } else {
                /* parent */
                close(stdoutfd[1]);

                if (copy(stdoutfd[0], logfd) < 0) {
                        return -1;
                }
        }
        return 0;
}

int main(int argc, char **argv) {
        if (exec() < 0) {
                return 1;
        }
        return 0;
}