/* * Copyright (c) 2022 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include #include "filepath_util.h" /** * @tc.name : readv_0100 * @tc.desc : read data into multiple buffers * @tc.level : Level 0 */ void readv_0100(void) { char path[PATH_MAX] = {0}; FILE_ABSOLUTE_PATH(STR_FILE_TXT, path); int fd = open(path, O_RDWR | O_CREAT, TEST_MODE); char buf1[] = "hello"; char buf2[] = "world"; struct iovec ios[] = {{buf1, strlen(buf1)}, {buf2, strlen(buf2)}}; ssize_t result = writev(fd, ios, sizeof(ios) / sizeof(struct iovec)); if (result != strlen(buf1) + strlen(buf2)) { t_error("%s failed: result = %ld\n", __func__, result); } lseek(fd, 0, SEEK_SET); memset(buf1, 0, sizeof(buf1)); memset(buf2, 0, sizeof(buf2)); result = readv(fd, ios, sizeof(ios) / sizeof(struct iovec)); if (result != strlen(buf1) + strlen(buf2)) { t_error("%s failed: result = %ld\n", __func__, result); } if (strcmp(buf1, "hello")) { t_error("%s failed: buf1 = %s\n", __func__, buf1); } if (strcmp(buf2, "world")) { t_error("%s failed: buf2 = %s\n", __func__, buf2); } remove(path); } /** * @tc.name : readv_0200 * @tc.desc : read data into multiple buffers with invalid parameters * @tc.level : Level 2 */ void readv_0200(void) { errno = 0; ssize_t result = readv(-1, NULL, -1); if (result == 0) { t_error("%s failed: result = %ld\n", __func__, result); } if (errno == 0) { t_error("%s failed: errno = %d\n", __func__, errno); } } int main(int argc, char *argv[]) { readv_0100(); readv_0200(); return t_status; }