bitlbee - personal fork of github.com/bitlbee/bitlbee

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author	Wilmer van der Gaast <wilmer@gaast.net>	2013-02-21 14:03:15 +0000
committer	Wilmer van der Gaast <wilmer@gaast.net>	2013-02-21 14:03:15 +0000
commit	06eef808b0ce5d7d7056240be6286aa79ac6a9ec (patch)
tree	f2ef90945c7595580ff4aeb33ee78320132c8ab4 /protocols/account.c
parent	12f500f085fe715b62e13c9b67b23f952c100a21 (diff)

For the lazy among us: When adding a Jabber/MSN contact within the same

domain like you, you can omit the domain name.

Diffstat (limited to 'protocols/account.c')

0 files changed, 0 insertions, 0 deletions

/********************************************************************\ * BitlBee -- An IRC to other IM-networks gateway * * * * Copyright 2002-2004 Sjoerd Hemminga and others * \********************************************************************/ /* A little bit of encryption for the users' passwords */ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License with the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* [WvG] This file can also be compiled into a stand-alone program which can encode/decode BitlBee account files. The main() will be included if CRYPTING_MAIN is defined. Or just do "make decode" and the programs will be built. */ #ifndef CRYPTING_MAIN #define BITLBEE_CORE #include "bitlbee.h" #include "irc.h" #include "md5.h" #include "crypting.h" #include <string.h> #include <stdio.h> #include <stdlib.h> #else typedef struct irc { char *password; } irc_t; #define set_add( a, b, c, d ) #define set_find( a, b ) NULL #include "md5.h" #include "crypting.h" #include <string.h> #include <stdio.h> #include <stdlib.h> #define irc_usermsg #endif /*\ * [SH] Do _not_ call this if it's not entirely sure that it will not cause * harm to another users file, since this does not check the password for * correctness. \*/ /* USE WITH CAUTION! Sets pass without checking */ void setpassnc (irc_t *irc, char *pass) { if (!set_find (irc, "password")) set_add (irc, "password", NULL, passchange); if (irc->password) g_free (irc->password); if (pass) { irc->password = g_strdup (pass); irc_usermsg (irc, "Password successfully changed"); } else { irc->password = NULL; } } char *passchange (irc_t *irc, void *set, char *value) { setpassnc (irc, value); return (NULL); } int setpass (irc_t *irc, char *pass, char* md5sum) { md5_state_t md5state; md5_byte_t digest[16]; int i, j; char digits[3]; md5_init (&md5state); md5_append (&md5state, (unsigned char *)pass, strlen (pass)); md5_finish (&md5state, digest); for (i = 0, j = 0; i < 16; i++, j += 2) { /* Check password for correctness */ g_snprintf (digits, sizeof (digits), "%02x\n", digest[i]); if (digits[0] != md5sum[j]) return (-1); if (digits[1] != md5sum[j + 1]) return (-1); } /* If pass is correct, we end up here and we set the pass */ setpassnc (irc, pass); return (0); } char *hashpass (irc_t *irc) { md5_state_t md5state; md5_byte_t digest[16]; int i; char digits[3]; char *rv; if (irc->password == NULL) return (NULL); rv = (char *)g_malloc (33); memset (rv, 0, 33); md5_init (&md5state); md5_append (&md5state, (unsigned char *)irc->password, strlen (irc->password)); md5_finish (&md5state, digest); for (i = 0; i < 16; i++) { /* Build a hash of the pass */ g_snprintf (digits, sizeof (digits), "%02x", digest[i]); strcat (rv, digits); } return (rv); } char *obfucrypt (irc_t *irc, char *line) { int i, j; char *rv; if (irc->password == NULL) return (NULL); rv = (char *)g_malloc (strlen (line) + 1); memset (rv, '\0', strlen (line) + 1); i = j = 0; while (*line) { /* Encrypt/obfuscate the line, using the password */ if (*(signed char*)line < 0) *line = - (*line); if (((signed char*)irc->password)[i] < 0) irc->password[i] = - irc->password[i]; rv[j] = *line + irc->password[i]; /* Overflow intended */ line++; if (!irc->password[++i]) i = 0; j++; } return (rv); } char *deobfucrypt (irc_t *irc, char *line) { int i, j; char *rv; if (irc->password == NULL) return (NULL); rv = (char *)g_malloc (strlen (line) + 1); memset (rv, '\0', strlen (line) + 1); i = j = 0; while (*line) { /* Decrypt/deobfuscate the line, using the pass */ rv[j] = *line - irc->password[i]; /* Overflow intended */ line++; if (!irc->password[++i]) i = 0; j++; } return (rv); } #ifdef CRYPTING_MAIN /* A little main() function for people who want a stand-alone program to encode/decode BitlCrypted files. */ int main( int argc, char *argv[] ) { irc_t *irc = g_malloc( sizeof( irc_t ) ); char *hash, *action, line[256]; char* (*func)( irc_t *, char * ); if( argc < 2 ) { fprintf( stderr, "Usage: %s <password>\n\n" "Reads from stdin, writes to stdout.\n" "Call as \"encode\" to encode, \"decode\" to decode.\n", argv[0] ); return( 1 ); } memset( irc, 0, sizeof( irc_t ) ); irc->password = g_strdup( argv[1] ); hash = hashpass( irc ); action = argv[0] + strlen( argv[0] ) - strlen( "encode" ); if( strcmp( action, "encode" ) == 0 ) { fwrite( hash, 32, 1, stdout ); func = obfucrypt; } else if( strcmp( action, "decode" ) == 0 ) { char hash2[32]; fread( hash2, 32, 1, stdin ); if( memcmp( hash, hash2, 32 ) != 0 ) { fprintf( stderr, "Passwords don't match. Can't decode.\n" ); return( 1 ); } func = deobfucrypt; } else { return( main( 0, NULL ) ); } while( fscanf( stdin, "%[^\n]255s", line ) > 0 ) { char *out; /* Flush the newline */ fgetc( stdin ); out = func( irc, line ); printf( "%s\n", out ); g_free( out ); } return( 0 ); } #endif


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