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#include "log.h"
#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_ADDRESS_SIZE);
}
/* From utox/util.c */
int string_to_id(char_t *w, char_t *a)
{
char_t *end = w + TOX_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;
}
/* Parse the -L parameter */
/* true = success */
bool parse_local_port_forward(char *string, int *local_port, char **hostname, int *remote_port)
{
char *lport;
/* Alternative delimiter '@', as ':' is forbidden in some environments */
lport = strtok(string, ":@");
if(!(*local_port = atoi(lport)))
{
return false;
}
if(parse_pipe_port_forward(lport + strlen(lport), hostname, remote_port))
{
return *remote_port;
}
return false;
}
/* Parse the -W parameter */
/* true = success */
bool parse_pipe_port_forward(char *string, char **hostname, int *remote_port)
{
char *host;
char *rport;
/* Alternative delimiter '@', as ':' is forbidden in some environments */
host = strtok(string, ":@");
rport = strtok(NULL, "");
if(!host || !rport)
{
return false;
}
*hostname = host;
*remote_port = atoi(rport);
if(*remote_port > 0 && *remote_port < 65535)
{
/* This is tolerant of nonsense tokens after the port. */
return true;
}
else
{
/* Port 0 is not allowed in the input. Only a literal '*' can produce a
* port 0 in the output, which will be treated as a wildcard if this is
* a rule. */
if (rport[0] != '*')
{
return false;
}
/* Return an error if an extra token follows, but tolerate whitespace. */
return !strtok(rport+1, "\n\t ");
}
}
void* file_raw(char *path, uint32_t *size)
{
FILE *file;
char *data;
int len;
file = fopen(path, "rb");
if(!file) {
log_printf(L_WARNING, "File not found (%s)\n", path);
return NULL;
}
fseek(file, 0, SEEK_END);
len = ftell(file);
if(len <= 0)
{
fclose(file);
return NULL;
}
data = malloc(len);
if(!data) {
fclose(file);
return NULL;
}
fseek(file, 0, SEEK_SET);
if(fread(data, len, 1, file) != 1) {
log_printf(L_WARNING, "Read error (%s)\n", path);
fclose(file);
free(data);
return NULL;
}
fclose(file);
log_printf(L_DEBUG, "Read %u bytes (%s)\n", len, path);
if(size) {
*size = len;
}
return data;
}
const char *readable_connection_status(TOX_CONNECTION status)
{
switch(status)
{
case TOX_CONNECTION_NONE:
return "There is no connection";
case TOX_CONNECTION_TCP:
return "A TCP connection has been established (via TCP relay)";
case TOX_CONNECTION_UDP:
return "An UDP connection has been established";
default:
log_printf(L_WARNING, "Received unknown connection status %d\n", (int)status);
return "Unknown connection status";
}
}
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