1 /* 2 * Copyright (C) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include <stdlib.h> 17 #include <unistd.h> 18 #include <sys/wait.h> 19 #include <errno.h> 20 #include "test.h" 21 22 #define MALLOC_SIZE_S 0x20 23 #define MALLOC_SIZE_L 0x40 24 #define IDX_IN_CHUNK (-3) 25 get_slotnum(uint8_t * p)26static int get_slotnum(uint8_t *p) 27 { 28 return (p[IDX_IN_CHUNK] & 0x1f); 29 } 30 main(void)31int main(void) 32 { 33 void *p = malloc(MALLOC_SIZE_S); 34 void *q = malloc(MALLOC_SIZE_S); 35 void *r = malloc(MALLOC_SIZE_S); 36 if (!p || !q || !r) 37 t_error("malloc returned NULL\n"); 38 39 int slot_p_1 = get_slotnum((uint8_t *)p); 40 int slot_q_1 = get_slotnum((uint8_t *)q); 41 int slot_r_1 = get_slotnum((uint8_t *)r); 42 43 free(p); 44 free(q); 45 free(r); 46 47 p = malloc(MALLOC_SIZE_L); 48 q = malloc(MALLOC_SIZE_L); 49 r = malloc(MALLOC_SIZE_L); 50 if (!p || !q || !r) 51 t_error("malloc returned NULL\n"); 52 53 int slot_p_2 = get_slotnum((uint8_t *)p); 54 int slot_q_2 = get_slotnum((uint8_t *)q); 55 int slot_r_2 = get_slotnum((uint8_t *)r); 56 57 free(p); 58 free(q); 59 free(r); 60 61 if (((slot_p_1 + 1) == slot_q_1) && ((slot_q_1 + 1) == slot_r_1)) { 62 if (((slot_p_2 + 1) == slot_q_2) && ((slot_q_2 + 1) == slot_r_2)) 63 t_error("malloc(0) random error\n"); 64 } 65 return t_status; 66 } 67 68