126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
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// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include "http_utils.h"
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#ifndef mem_check
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#define mem_check(x) assert(x)
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#endif
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char *http_utils_join_string(const char *first_str, int len_first, const char *second_str, int len_second)
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{
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int first_str_len = len_first > 0 ? len_first : strlen(first_str);
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int second_str_len = len_second > 0 ? len_second : strlen(second_str);
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char *ret = NULL;
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if (first_str_len + second_str_len > 0) {
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ret = calloc(1, first_str_len + second_str_len + 1);
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mem_check(ret);
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memcpy(ret, first_str, first_str_len);
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memcpy(ret + first_str_len, second_str, second_str_len);
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}
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return ret;
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}
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char *http_utils_assign_string(char **str, const char *new_str, int len)
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{
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int l = len;
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if (new_str == NULL) {
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return NULL;
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}
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char *old_str = *str;
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if (l <= 0) {
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l = strlen(new_str);
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}
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if (old_str) {
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old_str = realloc(old_str, l + 1);
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mem_check(old_str);
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old_str[l] = 0;
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} else {
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old_str = calloc(1, l + 1);
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mem_check(old_str);
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}
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memcpy(old_str, new_str, l);
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*str = old_str;
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return old_str;
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}
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void http_utils_trim_whitespace(char **str)
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{
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char *end;
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char *start = *str;
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// Trim leading space
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while (isspace((unsigned char)*start)) start ++;
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if (*start == 0) { // All spaces?
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**str = 0;
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return;
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}
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// Trim trailing space
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end = (char *)(start + strlen(start) - 1);
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while (end > start && isspace((unsigned char)*end)) {
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end--;
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}
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// Write new null terminator
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*(end + 1) = 0;
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memmove(*str, start, strlen(start) + 1);
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}
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char *http_utils_get_string_between(const char *str, const char *begin, const char *end)
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{
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char *found = strstr(str, begin);
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char *ret = NULL;
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if (found) {
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found += strlen(begin);
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char *found_end = strstr(found, end);
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if (found_end) {
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ret = calloc(1, found_end - found + 1);
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mem_check(ret);
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memcpy(ret, found, found_end - found);
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return ret;
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}
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}
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return NULL;
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}
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int http_utils_str_starts_with(const char *str, const char *start)
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{
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int i;
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int match_str_len = strlen(str);
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int start_len = strlen(start);
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if (start_len > match_str_len) {
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return -1;
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}
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for (i = 0; i < start_len; i++) {
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if (str[i] != start[i]) {
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return 1;
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}
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}
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return 0;
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}
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void http_utils_ms_to_timeval(int timeout_ms, struct timeval *tv)
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{
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tv->tv_sec = timeout_ms / 1000;
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tv->tv_usec = (timeout_ms - (tv->tv_sec * 1000)) * 1000;
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}
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