src/test/mmap_tmpfs.c

/* -*- Mode: C; tab-width: 8; c-basic-offset: 2; indent-tabs-mode: nil; -*- */

#include "util.h"

#define TEST_FILENAME "foo.so"
#define TOKEN "hello kitty"

int main(void) {
  int fd = open(TEST_FILENAME, O_CREAT | O_EXCL | O_RDWR, 0700);
  char* bytes;

  write(fd, TOKEN, sizeof(TOKEN));
  close(fd);

  fd = open(TEST_FILENAME, O_RDONLY);
  bytes = (char*)mmap(NULL, 4096, PROT_READ | PROT_EXEC, MAP_PRIVATE, fd, 0);
  test_assert(bytes != MAP_FAILED);
  test_assert(!strcmp(bytes, TOKEN));
  munmap(bytes, 4096);
  close(fd);

  unlink(TEST_FILENAME);

  atomic_puts("EXIT-SUCCESS");
  return 0;
}