mirror of
https://github.com/irungentoo/toxcore.git
synced 2024-03-22 13:30:51 +08:00
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
|
|
* Miscellaneous functions and data structures for doing random things.
|
|
*/
|
|
|
|
/*
|
|
* Copyright © 2016-2017 The TokTok team.
|
|
* Copyright © 2013 Tox project.
|
|
*
|
|
* This file is part of Tox, the free peer to peer instant messenger.
|
|
*
|
|
* Tox is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Tox is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <ctype.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
//Sleep function (x = milliseconds)
|
|
#if defined(_WIN32) || defined(__WIN32__) || defined (WIN32)
|
|
#include <windows.h>
|
|
#define c_sleep(x) Sleep(x)
|
|
#else
|
|
#include <unistd.h>
|
|
#define c_sleep(x) usleep(1000*(x))
|
|
#endif
|
|
|
|
// You are responsible for freeing the return value!
|
|
uint8_t *hex_string_to_bin(const char *hex_string)
|
|
{
|
|
// byte is represented by exactly 2 hex digits, so lenth of binary string
|
|
// is half of that of the hex one. only hex string with even length
|
|
// valid. the more proper implementation would be to check if strlen(hex_string)
|
|
// is odd and return error code if it is. we assume strlen is even. if it's not
|
|
// then the last byte just won't be written in 'ret'.
|
|
size_t i, len = strlen(hex_string) / 2;
|
|
uint8_t *ret = (uint8_t *)malloc(len);
|
|
const char *pos = hex_string;
|
|
|
|
for (i = 0; i < len; ++i, pos += 2) {
|
|
sscanf(pos, "%2hhx", &ret[i]);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Reimplementation of strncasecmp() function from strings.h, as strings.h is
|
|
* POSIX and not portable. Specifically it doesn't exist on MSVC.
|
|
*/
|
|
int tox_strncasecmp(const char *s1, const char *s2, size_t n)
|
|
{
|
|
while (n--) {
|
|
int c1 = tolower(*(s1++));
|
|
int c2 = tolower(*(s2++));
|
|
|
|
if (c1 == '\0' || c2 == '\0' || c1 != c2) {
|
|
return c1 - c2;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cmdline_parsefor_ipv46(int argc, char **argv, uint8_t *ipv6enabled)
|
|
{
|
|
int argvoffset = 0, argi;
|
|
|
|
for (argi = 1; argi < argc; argi++) {
|
|
if (!tox_strncasecmp(argv[argi], "--ipv", 5)) {
|
|
if (argv[argi][5] && !argv[argi][6]) {
|
|
char c = argv[argi][5];
|
|
|
|
if (c == '4') {
|
|
*ipv6enabled = 0;
|
|
} else if (c == '6') {
|
|
*ipv6enabled = 1;
|
|
} else {
|
|
printf("Invalid argument: %s. Try --ipv4 or --ipv6!\n", argv[argi]);
|
|
return -1;
|
|
}
|
|
} else {
|
|
printf("Invalid argument: %s. Try --ipv4 or --ipv6!\n", argv[argi]);
|
|
return -1;
|
|
}
|
|
|
|
if (argvoffset != argi - 1) {
|
|
printf("Argument must come first: %s.\n", argv[argi]);
|
|
return -1;
|
|
}
|
|
|
|
argvoffset++;
|
|
}
|
|
}
|
|
|
|
return argvoffset;
|
|
}
|