test/test14.c

   1 /* Test 14. unlinking an open file. */
   2
   3 #include <sys/types.h>
   4 #include <errno.h>
   5 #include <fcntl.h>
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <stdio.h>
   9
  10 #define TRIALS 100
  11 #define MAX_ERROR 4
  12
  13 char name[20] = {"TMP14."};
  14 int subtest = 1;
  15
  16 #include "common.c"
  17
  18 int main(void);
  19 void e(int n);
  20 void quit(void);
  21
  22 int main()
  23 {
  24   int fd0, i, pid;
  25
  26   start(14);
  27
  28   pid = getpid();
  29   sprintf(&name[6], "%x", pid);
  30
  31   for (i = 0; i < TRIALS; i++) {
  32         if ( (fd0 = creat(name, 0777)) < 0) e(1);
  33         if (write(fd0, name, 20) != 20) e(2);
  34         if (unlink(name) != 0) e(3);
  35         if (close(fd0) != 0) e(4);
  36   }
  37
  38   fd0 = creat(name, 0777);
  39   write(fd0, name, 20);
  40   unlink(name);
  41   quit();
  42   return(-1);                   /* impossible */
  43 }
  44