148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/* XChat-WDK
|
|
* Copyright (c) 2010 Berke Viktor.
|
|
*
|
|
* Use of OpenSSL SHA256 interface: http://adamlamers.com/?p=5
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <malloc.h>
|
|
#include <errno.h>
|
|
#include <openssl/sha.h>
|
|
|
|
#include "xchat-plugin.h"
|
|
|
|
#define BUFSIZE 32768
|
|
|
|
static xchat_plugin *ph; /* plugin handle */
|
|
|
|
void
|
|
sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65])
|
|
{
|
|
int i = 0;
|
|
for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
|
|
{
|
|
sprintf(outputBuffer + (i * 2), "%02x", hash[i]);
|
|
}
|
|
outputBuffer[64] = 0;
|
|
}
|
|
|
|
void
|
|
sha256 (char *string, char outputBuffer[65])
|
|
{
|
|
int i;
|
|
unsigned char hash[SHA256_DIGEST_LENGTH];
|
|
SHA256_CTX sha256;
|
|
|
|
SHA256_Init (&sha256);
|
|
SHA256_Update (&sha256, string, strlen(string));
|
|
SHA256_Final (hash, &sha256);
|
|
|
|
for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
|
|
{
|
|
sprintf (outputBuffer + (i * 2), "%02x", hash[i]);
|
|
}
|
|
outputBuffer[64] = 0;
|
|
}
|
|
|
|
int
|
|
sha256_file (char *path, char outputBuffer[65])
|
|
{
|
|
int bytesRead;
|
|
unsigned char *buffer;
|
|
unsigned char hash[SHA256_DIGEST_LENGTH];
|
|
SHA256_CTX sha256;
|
|
|
|
FILE *file = fopen (path, "rb");
|
|
if (!file)
|
|
{
|
|
return -534;
|
|
}
|
|
|
|
SHA256_Init (&sha256);
|
|
buffer = malloc (BUFSIZE);
|
|
bytesRead = 0;
|
|
|
|
if (!buffer)
|
|
{
|
|
return ENOMEM;
|
|
}
|
|
|
|
while ((bytesRead = fread (buffer, 1, BUFSIZE, file)))
|
|
{
|
|
SHA256_Update (&sha256, buffer, bytesRead);
|
|
}
|
|
|
|
SHA256_Final (hash, &sha256);
|
|
sha256_hash_string (hash, outputBuffer);
|
|
|
|
fclose (file);
|
|
free (buffer);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
dccrecv_cb(char *word[], void *userdata)
|
|
{
|
|
unsigned char sum[65];
|
|
sha256_file (word[2], sum);
|
|
xchat_printf (ph, "DCC RECV %s from %s complete [%s cps]", word[1], word[3], word[4]);
|
|
xchat_printf (ph, "SHA256 checksum for %s: %s\n", word[1], sum);
|
|
return XCHAT_EAT_XCHAT;
|
|
}
|
|
|
|
int
|
|
dccoffer_cb(char *word[], void *userdata)
|
|
{
|
|
unsigned char sum[65];
|
|
sha256_file (word[3], sum);
|
|
xchat_printf (ph, "Offering %s to %s", word[1], word[2]);
|
|
xchat_printf (ph, "SHA256 checksum for %s: %s\n", word[1], sum);
|
|
return XCHAT_EAT_XCHAT;
|
|
}
|
|
|
|
int
|
|
xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
|
|
{
|
|
ph = plugin_handle;
|
|
|
|
*plugin_name = "Checksum";
|
|
*plugin_desc = "Calculate checksum for DCC file transfers";
|
|
*plugin_version = "1.0";
|
|
|
|
xchat_hook_print(ph, "DCC RECV Complete", XCHAT_PRI_NORM, dccrecv_cb, NULL);
|
|
xchat_hook_print(ph, "DCC Offer", XCHAT_PRI_NORM, dccoffer_cb, NULL);
|
|
|
|
xchat_print (ph, "Checksum plugin loaded\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
xchat_plugin_deinit (void)
|
|
{
|
|
xchat_print (ph, "Checksum plugin unloaded\n");
|
|
return 1;
|
|
}
|