text: /*
  20160226
  Jan Mojzis
  Public domain.
  */
  
  #include <sys/types.h>
  #include <unistd.h>
  #include <signal.h>
  #include "log.h"
  #include "packet.h"
  #include "ssh.h"
  #include "bug.h"
  #include "packetparser.h"
  #include "global.h"
  
  static void cleanup(void) {
  
      global_purge();
  }
  
  static void die_fatal(const char *trouble, const char *d, const char *fn) {
  
      cleanup();
  
      if (d) {
          if (fn) log_f5(trouble, " ", d, "/", fn);
          else log_f3(trouble, " ", d);
      }
      else {
          log_f1(trouble);
      }
      _exit(111);
  }
  
  
  int main(int argc, char **argv) {
  
      pid_t pid;
      int tochild[2] = { -1, -1 };
      int fromchild[2] = { -1, -1 };
  
      if (argc < 2) _exit(111);
      if (!argv[0]) _exit(111);
      if (!argv[1]) _exit(111);
      ++argv;
  
      if (pipe(tochild) == -1) _exit(111);
      if (pipe(fromchild) == -1) _exit(111);
      pid = fork();
      if (pid == -1) _exit(111);
  
      if (pid == 0) {
          close(tochild[1]);
          close(fromchild[0]);
          if (dup2(tochild[0], 0) == -1) _exit(111);
          if (dup2(fromchild[1], 1) == -1) _exit(111);
          execvp(*argv, argv);
          _exit(111);
      }
      close(tochild[0]);
      close(fromchild[1]);
  
      close(0); if (dup2(fromchild[0], 0) == -1) _exit(111);
      close(1); if (dup2(tochild[1], 1) == -1) _exit(111);
  
      signal(SIGPIPE, SIG_IGN);
  
      global_init();
  
      log_init(2, "_tinysshd-test-kex1", 0, 0);
  
      if (!packet_hello_receive()) die_fatal("unable to receive hello-string", 0, 0);
      if (!packet_hello_send()) die_fatal("unable to send hello-string", 0, 0);
  
      _exit(111);
  }
  