diff options
author | berkeviktor@aol.com <berkeviktor@aol.com> | 2011-02-24 04:13:14 +0100 |
---|---|---|
committer | berkeviktor@aol.com <berkeviktor@aol.com> | 2011-02-24 04:13:14 +0100 |
commit | f16af8be941b596dedac3bf4e371ee2d21f4b598 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /plugins/checksum | |
parent | c6a031659b54230099c863b7ccdc03de4a4c7a2d (diff) |
nuke the repo
Diffstat (limited to 'plugins/checksum')
-rw-r--r-- | plugins/checksum/checksum.c | 351 | ||||
-rw-r--r-- | plugins/checksum/makefile.mak | 18 |
2 files changed, 0 insertions, 369 deletions
diff --git a/plugins/checksum/checksum.c b/plugins/checksum/checksum.c deleted file mode 100644 index 170daa5b..00000000 --- a/plugins/checksum/checksum.c +++ /dev/null @@ -1,351 +0,0 @@ -/* XChat-WDK - * Copyright (c) 2010-2011 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 <string.h> -#include <malloc.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <openssl/sha.h> - -#include "xchat-plugin.h" - -#define BUFSIZE 32768 -#define DEFAULT_MAX_HASH_SIZE 268435456 /* default size is 256 MB */ -#define FILE_BUF_SIZE 512 - -#ifndef snprintf -#define snprintf _snprintf -#endif -#ifndef stat64 -#define stat64 _stat64 -#endif - -static xchat_plugin *ph; /* plugin handle */ -static int config_fail; /* variable for config availability */ - -static void -sha256_hash_string (unsigned char hash[SHA256_DIGEST_LENGTH], char outputBuffer[65]) -{ - int i; - for (i = 0; i < SHA256_DIGEST_LENGTH; i++) - { - sprintf (outputBuffer + (i * 2), "%02x", hash[i]); - } - outputBuffer[64] = 0; -} - -static 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; -} - -static 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; -} - -static void -init () -{ - /* check whether the config file exists, if it doesn't, try to create it */ - FILE * file_in; - FILE * file_out; - char buffer[FILE_BUF_SIZE]; - - config_fail = 0; - snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs")); - - if ((file_in = fopen (buffer, "r")) == NULL) - { - if ((file_out = fopen (buffer, "w")) == NULL) - { - config_fail = 1; - } else - { - fprintf (file_out, "%llu\n", (unsigned long long) DEFAULT_MAX_HASH_SIZE); - fclose (file_out); - } - } else - { - fclose (file_in); - } - - /* nasty easter egg: if FILE_BUF_SIZE is set to 1024 and you build for x86, you can do fclose () - at the end of init (), which is plain wrong as it will only work if fopen () != 0. */ -} - -static unsigned long long -get_max_hash_size () -{ - FILE * file_in; - char buffer[FILE_BUF_SIZE]; - unsigned long long max_hash_size; - - if (config_fail) - { - return (unsigned long long) DEFAULT_MAX_HASH_SIZE; - } else - { - snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs")); - file_in = fopen (buffer, "r"); - fscanf (file_in, "%llu", &max_hash_size); - - fclose (file_in); - return max_hash_size; - } -} - -static void -print_size () -{ - unsigned long long size; - char suffix[3]; - - size = get_max_hash_size (); - - if (size >= 1073741824) - { - size /= 1073741824; - snprintf (suffix, sizeof (suffix), "GB"); - } else if (size >= 1048576) - { - size /= 1048576; - snprintf (suffix, sizeof (suffix), "MB"); - } else if (size >= 1024) - { - size /= 1024; - snprintf (suffix, sizeof (suffix), "kB"); - } else - { - snprintf (suffix, sizeof (suffix), "B"); - } - xchat_printf (ph, "File size limit for checksums: %llu %s\n", size, suffix); -} - -static void -increase_max_hash_size () -{ - unsigned long long size; - FILE * file_out; - char buffer[FILE_BUF_SIZE]; - - if (config_fail) - { - xchat_printf (ph, "Config file is unavailable, falling back to the default value\n"); - print_size (); - } else - { - size = get_max_hash_size (); - if (size <= ULLONG_MAX/2) - { - size *= 2; - } - - snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs")); - file_out = fopen (buffer, "w"); - fprintf (file_out, "%llu\n", size); - fclose (file_out); - print_size (); - } -} - -static void -decrease_max_hash_size () -{ - unsigned long long size; - FILE * file_out; - char buffer[FILE_BUF_SIZE]; - - if (config_fail) - { - xchat_printf (ph, "Config file is unavailable, falling back to the default value\n"); - print_size (); - } else - { - size = get_max_hash_size (); - if (size >= 2) - { - size /= 2; - } - - snprintf (buffer, sizeof (buffer), "%s/checksum.conf", xchat_get_info (ph, "xchatdirfs")); - file_out = fopen (buffer, "w"); - fprintf (file_out, "%llu\n", size); - fclose (file_out); - print_size (); - } -} - -static int -dccrecv_cb (char *word[], void *userdata) -{ - int result; - struct stat64 buffer; /* buffer for storing file info */ - char sum[65]; /* buffer for checksum */ - - result = stat64 (word[2], &buffer); - if (result == 0) /* stat returns 0 on success */ - { - if (buffer.st_size <= get_max_hash_size ()) - { - sha256_file (word[2], sum); /* word[2] is the full filename */ - /* try to print the checksum in the privmsg tab of the sender */ - xchat_set_context (ph, xchat_find_context (ph, NULL, word[3])); - xchat_printf (ph, "SHA-256 checksum for %s (local): %s\n", word[1], sum); - } else - { - xchat_set_context (ph, xchat_find_context (ph, NULL, word[3])); - xchat_printf (ph, "SHA-256 checksum for %s (local): (size limit reached, no checksum calculated, you can increase it with /CHECKSUM INC)\n", word[1]); - } - } else - { - xchat_printf (ph, "File access error\n"); - } - - return XCHAT_EAT_NONE; -} - -static int -dccoffer_cb (char *word[], void *userdata) -{ - int result; - struct stat64 buffer; /* buffer for storing file info */ - char sum[65]; /* buffer for checksum */ - - result = stat64 (word[3], &buffer); - if (result == 0) /* stat returns 0 on success */ - { - if (buffer.st_size <= get_max_hash_size ()) - { - sha256_file (word[3], sum); /* word[3] is the full filename */ - xchat_commandf (ph, "quote PRIVMSG %s :SHA-256 checksum for %s (remote): %s", word[2], word[1], sum); - } else - { - xchat_set_context (ph, xchat_find_context (ph, NULL, word[3])); - xchat_printf (ph, "quote PRIVMSG %s :SHA-256 checksum for %s (remote): (size limit reached, no checksum calculated)", word[2], word[1]); - } - } else - { - xchat_printf (ph, "File access error\n"); - } - - return XCHAT_EAT_NONE; -} - -static void -checksum (char *word[], void *userdata) -{ - if (!stricmp ("GET", word[2])) - { - print_size (); - } else if (!stricmp ("INC", word[2])) - { - increase_max_hash_size (); - } else if (!stricmp ("DEC", word[2])) - { - decrease_max_hash_size (); - } else - { - xchat_printf (ph, "Usage: /CHECKSUM GET|INC|DEC\n"); - xchat_printf (ph, " GET - print the maximum file size to be hashed\n"); - xchat_printf (ph, " INC - double the maximum file size to be hashed\n"); - xchat_printf (ph, " DEC - halve the maximum file size to be hashed\n"); - } -} - -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 = "2.0"; - - init (); - - xchat_hook_command (ph, "CHECKSUM", XCHAT_PRI_NORM, checksum, "Usage: /CHECKSUM GET|INC|DEC", 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; -} diff --git a/plugins/checksum/makefile.mak b/plugins/checksum/makefile.mak deleted file mode 100644 index ec8e0455..00000000 --- a/plugins/checksum/makefile.mak +++ /dev/null @@ -1,18 +0,0 @@ -include "..\..\src\makeinc.mak" - -all: checksum.obj checksum.def - link $(LDFLAGS) $(LIBS) /dll /out:xcchecksum.dll /def:checksum.def checksum.obj - -checksum.def: - echo EXPORTS > checksum.def - echo xchat_plugin_init >> checksum.def - echo xchat_plugin_deinit >> checksum.def - -checksum.obj: checksum.c makefile.mak - cl $(CFLAGS) /I.. checksum.c - -clean: - del *.obj - del *.dll - del *.exp - del *.lib |