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glibc  2.9
Defines | Functions | Variables
tst-umask1.c File Reference
#include <fcntl.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include "../test-skeleton.c"

Go to the source code of this file.

Defines

#define nfcts   (sizeof (fcts) / sizeof (fcts[0]))
#define TEST_FUNCTION   do_test (argc < 2 ? "/tmp/tst-umask.tmp" : argv[1])

Functions

static int work (const char *fname, int mask)
static void * tf (void *arg)
static int do_test (const char *fname)

Variables

struct {
int(* fp )(const char *, mode_t)
const char * name
bool is_fd
fcts []
static pthread_barrier_t bar

Define Documentation

#define nfcts   (sizeof (fcts) / sizeof (fcts[0]))

Definition at line 40 of file tst-umask1.c.

#define TEST_FUNCTION   do_test (argc < 2 ? "/tmp/tst-umask.tmp" : argv[1])

Definition at line 136 of file tst-umask1.c.


Function Documentation

static int do_test ( const char *  fname) [static]

Definition at line 97 of file tst-umask1.c.

{
  int result = 0;

  umask (0);
  result |= work (fname, 0);

  pthread_barrier_init (&bar, NULL, 2);

  pthread_t th;
  if (pthread_create (&th, NULL, tf, (void *) fname) != 0)
    {
      puts ("cannot create thread");
      exit (1);
    }

  umask (022);
  result |= work (fname, 022);

  pthread_barrier_wait (&bar);

  pthread_barrier_wait (&bar);

  umask (0);

  pthread_barrier_wait (&bar);

  void *res;
  if (pthread_join (th, &res) != 0)
    {
      puts ("join failed");
      exit (1);
    }

  remove (fname);

  return result || res != NULL;
}

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static void* tf ( void *  arg) [static]

Definition at line 82 of file tst-umask1.c.

{
  pthread_barrier_wait (&bar);

  int result = work (arg, 022);

  pthread_barrier_wait (&bar);

  pthread_barrier_wait (&bar);

  return (work (arg, 0) | result) ? (void *) -1l : NULL;
}

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static int work ( const char *  fname,
int  mask 
) [static]

Definition at line 44 of file tst-umask1.c.

{
  int result = 0;
  size_t i;
  for (i = 0; i < nfcts; ++i)
    {
      remove (fname);
      int fd = fcts[i].fp (fname, 0777);
      if (fd == -1)
       {
         printf ("cannot %s %s: %m\n", fcts[i].name, fname);
         exit (1);
       }
      if (fcts[i].is_fd)
       close (fd);
      struct stat64 st;
      if (stat64 (fname, &st) == -1)
       {
         printf ("cannot stat %s after %s: %m\n", fname, fcts[i].name);
         exit (1);
       }

      if ((st.st_mode & mask) != 0)
       {
         printf ("mask not successful after %s: %x still set\n",
                fcts[i].name, (unsigned int) (st.st_mode & mask));
         result = 1;
       }
    }

  return result;
}

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Variable Documentation

pthread_barrier_t bar [static]

Definition at line 78 of file tst-umask1.c.

struct { ... } fcts[] [static]