View of xos/tests/txtbsy.c

/* Copyright (C) 2008  Emmanuel Varoquaux
 
   This file is part of XOS.
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
#include <fcntl.h>
#include <sys/wait.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
 
int main(int argc, char **argv)
{
  static char timer[] = "/bin/timer";
 
  int fd;
  int pid;
 
  if (!(pid = fork())) {
    argv[0] = timer;
    execv("/bin/timer", argv);
  }
 
  if ((fd = open("/bin/timer", O_RDONLY)) < 0)
    perror("open(\"/bin/timer\", O_RDONLY)");
  else
    close(fd);
 
  printf("Test 1-ETXTBSY\n");
  if ((fd = open("/bin/timer", O_WRONLY)) < 0)
    perror("open(\"/bin/timer\", O_WRONLY)"); /* ETXTBSY */
  else
    close(fd);
 
  kill(pid, SIGKILL);
  waitpid(pid, NULL, 0);
 
  printf("Test 1-ok\n");
  if ((fd = open("/bin/timer", O_WRONLY)) < 0)
    perror("open(\"/bin/timer\", O_WRONLY)");
  else
    close(fd);
 
  if ((fd = open("toto", O_WRONLY | O_CREAT)) < 0) {
    perror("open(\"toto\", O_WRONLY)");
    return 1;
  }
 
  printf("Test 2-ETXTBSY\n");
  if (execv("toto", 0) < 0)
    perror("exec(\"toto\", 0)"); /* ETXTBSY */
 
  close(fd);
 
  printf("Test 2-ok\n");
  if (execv("toto", 0) < 0)
    perror("exec(\"toto\", 0)"); /* EINVAL */
 
  return 0;
}