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#include "util.h"
#include <string.h>
#include <tox/tox.h>
#include <stdio.h>
#include <stdlib.h>
void writechecksum(uint8_t *address)
{
uint8_t *checksum = address + 36;
uint32_t i;
for (i = 0; i < 36; ++i)
checksum[i % 2] ^= address[i];
}
/* From utox/util.c */
void to_hex(char_t *a, const char_t *p, int size)
{
char_t b, c;
const char_t *end = p + size;
while(p != end) {
b = *p++;
c = (b & 0xF);
b = (b >> 4);
if(b < 10) {
*a++ = b + '0';
} else {
*a++ = b - 10 + 'A';
}
if(c < 10) {
*a++ = c + '0';
} else {
*a++ = c - 10 + 'A';
}
}
a = '\0';
}
/* From utox/util.c */
void id_to_string(char_t *dest, const char_t *src)
{
to_hex(dest, src, TOX_FRIEND_ADDRESS_SIZE);
}
/* From utox/util.c */
int string_to_id(char_t *w, char_t *a)
{
char_t *end = w + TOX_FRIEND_ADDRESS_SIZE;
while(w != end) {
char_t c, v;
c = *a++;
if(c >= '0' && c <= '9') {
v = (c - '0') << 4;
} else if(c >= 'A' && c <= 'F') {
v = (c - 'A' + 10) << 4;
} else if(c >= 'a' && c <= 'f') {
v = (c - 'a' + 10) << 4;
} else {
return 0;
}
c = *a++;
if(c >= '0' && c <= '9') {
v |= (c - '0');
} else if(c >= 'A' && c <= 'F') {
v |= (c - 'A' + 10);
} else if(c >= 'a' && c <= 'f') {
v |= (c - 'a' + 10);
} else {
return 0;
}
*w++ = v;
}
return 1;
}
/* 0 = success */
int parse_local_port_forward(char *string, int *local_port, char **hostname, int *remote_port)
{
char *lport;
char *host;
char *rport;
lport = strtok(string, ":");
host = strtok(NULL, ":");
rport = strtok(NULL, ":");
if(!lport || !host || !rport)
{
return -1;
}
*local_port = atoi(lport);
*hostname = host;
*remote_port = atoi(rport);
return 0;
}
void* file_raw(char *path, uint32_t *size)
{
FILE *file;
char *data;
int len;
file = fopen(path, "rb");
if(!file) {
fprintf(stderr, "File not found (%s)\n", path);
return NULL;
}
fseek(file, 0, SEEK_END);
len = ftell(file);
data = malloc(len);
if(!data) {
fclose(file);
return NULL;
}
fseek(file, 0, SEEK_SET);
if(fread(data, len, 1, file) != 1) {
fprintf(stderr, "Read error (%s)\n", path);
fclose(file);
free(data);
return NULL;
}
fclose(file);
fprintf(stderr, "Read %u bytes (%s)\n", len, path);
if(size) {
*size = len;
}
return data;
}
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