92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2019 Jianhui Zhao <zhaojh329@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stddef.h>
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#include <stdbool.h>
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#include <inttypes.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#include <ctype.h>
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#include "utils.h"
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const char *saddr2str(struct sockaddr *addr, char buf[], int len, int *port)
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{
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if (addr->sa_family == AF_INET) {
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struct sockaddr_in *sin = (struct sockaddr_in *)addr;
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*port = ntohs(sin->sin_port);
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inet_ntop(AF_INET, &sin->sin_addr, buf, len);
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} else {
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
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*port = ntohs(sin6->sin6_port);
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inet_ntop(AF_INET6, &sin6->sin6_addr, buf, len);
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}
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return buf;
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}
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bool support_so_reuseport()
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{
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bool ok = false;
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int on = 1;
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int sock;
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sock = socket(AF_INET, SOCK_STREAM, 0);
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if (!setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(int)))
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ok = true;
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close(sock);
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return ok;
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}
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int urldecode(char *buf, int blen, const char *src, int slen)
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{
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int i;
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int len = 0;
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#define hex(x) \
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(((x) <= '9') ? ((x) - '0') : \
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(((x) <= 'F') ? ((x) - 'A' + 10) : \
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((x) - 'a' + 10)))
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for (i = 0; (i < slen) && (len < blen); i++) {
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if (src[i] != '%') {
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buf[len++] = src[i];
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continue;
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}
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if (i + 2 >= slen || !isxdigit(src[i + 1]) || !isxdigit(src[i + 2]))
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return -2;
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buf[len++] = (char)(16 * hex(src[i+1]) + hex(src[i+2]));
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i += 2;
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}
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buf[len] = 0;
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return (i == slen) ? len : -1;
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}
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