convert sha256sum to checksum plugin
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berkeviktor@aol.com
parent
48045bdf6a
commit
6767185943
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/* XChat-WDK
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* Copyright (c) 2010 Berke Viktor.
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*
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* Use of OpenSSL SHA256 interface: http://adamlamers.com/?p=5
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <malloc.h>
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#include <errno.h>
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#include <openssl/sha.h>
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#include "xchat-plugin.h"
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#define BUFSIZE 32768
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static xchat_plugin *ph; /* plugin handle */
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void
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sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65])
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{
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int i = 0;
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for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
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{
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sprintf(outputBuffer + (i * 2), "%02x", hash[i]);
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}
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outputBuffer[64] = 0;
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}
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void
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sha256 (char *string, char outputBuffer[65])
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{
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int i;
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unsigned char hash[SHA256_DIGEST_LENGTH];
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SHA256_CTX sha256;
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SHA256_Init (&sha256);
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SHA256_Update (&sha256, string, strlen(string));
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SHA256_Final (hash, &sha256);
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for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
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{
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sprintf (outputBuffer + (i * 2), "%02x", hash[i]);
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}
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outputBuffer[64] = 0;
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}
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int
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sha256_file (char *path, char outputBuffer[65])
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{
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int bytesRead;
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unsigned char *buffer;
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unsigned char hash[SHA256_DIGEST_LENGTH];
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SHA256_CTX sha256;
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FILE *file = fopen (path, "rb");
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if (!file)
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{
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return -534;
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}
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SHA256_Init (&sha256);
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buffer = malloc (BUFSIZE);
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bytesRead = 0;
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if (!buffer)
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{
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return ENOMEM;
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}
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while ((bytesRead = fread (buffer, 1, BUFSIZE, file)))
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{
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SHA256_Update (&sha256, buffer, bytesRead);
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}
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SHA256_Final (hash, &sha256);
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sha256_hash_string (hash, outputBuffer);
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fclose (file);
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free (buffer);
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return 0;
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}
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int
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dccrecv_cb(char *word[], void *userdata)
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{
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unsigned char sum[65];
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sha256_file (word[2], sum);
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xchat_printf (ph, "DCC RECV %s from %s complete [%s cps]", word[1], word[3], word[4]);
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xchat_printf (ph, "SHA256 checksum for %s: %s\n", word[1], sum);
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return XCHAT_EAT_XCHAT;
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}
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int
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dccoffer_cb(char *word[], void *userdata)
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{
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unsigned char sum[65];
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sha256_file (word[3], sum);
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xchat_printf (ph, "Offering %s to %s", word[1], word[2]);
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xchat_printf (ph, "SHA256 checksum for %s: %s\n", word[1], sum);
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return XCHAT_EAT_XCHAT;
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}
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int
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xchat_plugin_init (xchat_plugin *plugin_handle, char **plugin_name, char **plugin_desc, char **plugin_version, char *arg)
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{
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ph = plugin_handle;
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*plugin_name = "Checksum";
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*plugin_desc = "Calculate checksum for DCC file transfers";
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*plugin_version = "1.0";
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xchat_hook_print(ph, "DCC RECV Complete", XCHAT_PRI_NORM, dccrecv_cb, NULL);
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xchat_hook_print(ph, "DCC Offer", XCHAT_PRI_NORM, dccoffer_cb, NULL);
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xchat_print (ph, "Checksum plugin loaded\n");
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return 1;
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}
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int
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xchat_plugin_deinit (void)
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{
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xchat_print (ph, "Checksum plugin unloaded\n");
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return 1;
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}
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@ -0,0 +1,18 @@
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include "..\..\src\makeinc.mak"
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all: checksum.obj checksum.def
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link $(LDFLAGS) $(LIBS) /dll /out:xcchecksum.dll /libpath:$(LUAPATH)\lib $(LUALIB).lib /def:checksum.def checksum.obj
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checksum.def:
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echo EXPORTS > checksum.def
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echo xchat_plugin_init >> checksum.def
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echo xchat_plugin_deinit >> checksum.def
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checksum.obj: checksum.c makefile.mak
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cl $(CFLAGS) /Dsnprintf=g_snprintf /I$(LUAPATH)\include checksum.c
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clean:
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del *.obj
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del *.dll
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del *.exp
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del *.lib
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@ -1,74 +0,0 @@
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/* this is a cleaned-up version of
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* http://adamlamers.com/?p=5
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*/
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#include <stdio.h>
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#include <malloc.h>
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#include <errno.h>
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#include "checksum.h"
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void
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sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65])
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{
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int i = 0;
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for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
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{
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sprintf(outputBuffer + (i * 2), "%02x", hash[i]);
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}
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outputBuffer[64] = 0;
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}
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void
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sha256 (char *string, char outputBuffer[65])
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{
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int i;
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unsigned char hash[SHA256_DIGEST_LENGTH];
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SHA256_CTX sha256;
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SHA256_Init (&sha256);
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SHA256_Update (&sha256, string, strlen(string));
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SHA256_Final (hash, &sha256);
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for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
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{
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sprintf (outputBuffer + (i * 2), "%02x", hash[i]);
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}
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outputBuffer[64] = 0;
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}
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int
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sha256_file (char *path, char outputBuffer[65])
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{
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int bytesRead;
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unsigned char *buffer;
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unsigned char hash[SHA256_DIGEST_LENGTH];
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SHA256_CTX sha256;
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FILE *file = fopen (path, "rb");
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if (!file)
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{
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return -534;
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}
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SHA256_Init (&sha256);
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buffer = malloc (BUFSIZE);
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bytesRead = 0;
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if (!buffer)
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{
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return ENOMEM;
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}
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while ((bytesRead = fread (buffer, 1, BUFSIZE, file)))
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{
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SHA256_Update (&sha256, buffer, bytesRead);
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}
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SHA256_Final (hash, &sha256);
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sha256_hash_string (hash, outputBuffer);
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fclose (file);
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free (buffer);
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return 0;
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}
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@ -1,6 +0,0 @@
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#include <openssl/sha.h>
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#define BUFSIZE 32768
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void sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65]);
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void sha256 (char *string, char outputBuffer[65]);
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int sha256_file (char *path, char outputBuffer[65]);
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