newtests/glibc_compat.c

/*
 * Copyright (C) 2014 The Android Open source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <search.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>

struct FooStruct {
  int x;
  int y;
  int z;
} FOOs[10];
size_t FOOCnt = 0;
const FOOSIZE = sizeof(struct FooStruct);

int match(const void *k, const void *v) {
  const struct FooStruct* key = (const struct FooStruct*) k;
  const struct FooStruct* val = (const struct FooStruct*) v;

  if ((NULL == key) || (NULL == val)) {
    printf("Bogus value passed to match.\n");
    exit(1);
  };

  if (key->x == val->x && key->y == val->y && key->z == val->z)
    return 0;

  return 1;
}

int InsertAtEnd(struct FooStruct* f) {
  size_t old_cnt = FOOCnt;
  if (NULL != lfind(f, FOOs, &FOOCnt, FOOSIZE, match)) {
    printf("Unexpectedly found FOO.\n");
    return 1;
  }

  struct FooStruct *ptr = lsearch(f, FOOs, &FOOCnt, FOOSIZE, match);
  if (ptr != &FOOs[old_cnt]) {
    printf("Expectedly to add at end.\n");
    return 1;
  }

  if (FOOCnt != (old_cnt + 1)) {
    printf("Expected to grow cnt %d vs %d.\n", (int) FOOCnt, (int) old_cnt);
    return 1;
  }

  if (lfind(f, FOOs, &FOOCnt, FOOSIZE, match) != ptr) {
    printf("Expected to find foo.\n");
    return 1;
  }
  return 0;
}

int main(int argc, char* argv[]) {
  struct FooStruct FooA = { 1, 2, 3 };
  struct FooStruct FooB = { 2, 3, 4 };

  int cnt = 0;
  cnt += InsertAtEnd(&FooA);
  cnt += InsertAtEnd(&FooB);
  return cnt;
}