diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/input/Makefile.am | 2 | ||||
-rw-r--r-- | src/input/base64.c | 133 | ||||
-rw-r--r-- | src/input/base64.h | 95 | ||||
-rw-r--r-- | src/input/input_cdda.c | 61 | ||||
-rw-r--r-- | src/input/sha1.c | 329 | ||||
-rw-r--r-- | src/input/sha1.h | 61 |
6 files changed, 674 insertions, 7 deletions
diff --git a/src/input/Makefile.am b/src/input/Makefile.am index 5d834fb22..35672d934 100644 --- a/src/input/Makefile.am +++ b/src/input/Makefile.am @@ -108,7 +108,7 @@ xineplug_inp_rtsp_la_SOURCES = input_rtsp.c net_buf_ctrl.c xineplug_inp_rtsp_la_LIBADD = $(XINE_LIB) libreal/libreal.la librtsp/librtsp.la xineplug_inp_rtsp_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@ -xineplug_inp_cdda_la_SOURCES = input_cdda.c media_helper.c +xineplug_inp_cdda_la_SOURCES = input_cdda.c media_helper.c sha1.c sha1.h base64.c base64.h xineplug_inp_cdda_la_LIBADD = $(XINE_LIB) xineplug_inp_cdda_la_LDFLAGS = -avoid-version -module @XINE_PLUGIN_MIN_SYMS@ diff --git a/src/input/base64.c b/src/input/base64.c new file mode 100644 index 000000000..777d29ac1 --- /dev/null +++ b/src/input/base64.c @@ -0,0 +1,133 @@ +/* + * Copyright (C) 2000 Robert Kaye + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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 + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * Base64 encoding modified for Musicbrainz + * relicensed under the GNU General Public License for use in xine-lib + * + */ +/* -------------------------------------------------------------------------- + + MusicBrainz -- The Internet music metadatabase + + Copyright (C) 2000 Robert Kaye + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + $Id: base64.c,v 1.1 2004/05/05 09:11:39 hadess Exp $ + +----------------------------------------------------------------------------*/ +/* + * Program: RFC-822 routines (originally from SMTP) + * + * Author: Mark Crispin + * Networks and Distributed Computing + * Computing & Communications + * University of Washington + * Administration Building, AG-44 + * Seattle, WA 98195 + * Internet: MRC@CAC.Washington.EDU + * + * Date: 27 July 1988 + * Last Edited: 10 September 1998 + * + * Sponsorship: The original version of this work was developed in the + * Symbolic Systems Resources Group of the Knowledge Systems + * Laboratory at Stanford University in 1987-88, and was funded + * by the Biomedical Research Technology Program of the National + * Institutes of Health under grant number RR-00785. + * + * Original version Copyright 1988 by The Leland Stanford Junior University + * Copyright 1998 by the University of Washington + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, provided + * that the above copyright notices appear in all copies and that both the + * above copyright notices and this permission notice appear in supporting + * documentation, and that the name of the University of Washington or The + * Leland Stanford Junior University not be used in advertising or publicity + * pertaining to distribution of the software without specific, written prior + * permission. This software is made available "as is", and + * THE UNIVERSITY OF WASHINGTON AND THE LELAND STANFORD JUNIOR UNIVERSITY + * DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO THIS SOFTWARE, + * INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE, AND IN NO EVENT SHALL THE UNIVERSITY OF + * WASHINGTON OR THE LELAND STANFORD JUNIOR UNIVERSITY BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, TORT (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include <ctype.h> +#include <stdio.h> +#include <time.h> +#include <stdlib.h> + + +/* NOTE: This is not true RFC822 anymore. The use of the characters + '/', '+', and '=' is no bueno when the ID will be used as part of a URL. + '_', '.', and '-' have been used instead +*/ + +/* Convert binary contents to BASE64 + * Accepts: source + * length of source + * pointer to return destination length + * Returns: destination as BASE64 + */ + +unsigned char *rfc822_binary (void *src,unsigned long srcl,unsigned long *len) +{ + unsigned char *ret,*d; + unsigned char *s = (unsigned char *) src; + char *v = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._"; + unsigned long i = ((srcl + 2) / 3) * 4; + *len = i += 2 * ((i / 60) + 1); + d = ret = (unsigned char *) malloc ((size_t) ++i); + for (i = 0; srcl; s += 3) { /* process tuplets */ + *d++ = v[s[0] >> 2]; /* byte 1: high 6 bits (1) */ + /* byte 2: low 2 bits (1), high 4 bits (2) */ + *d++ = v[((s[0] << 4) + (--srcl ? (s[1] >> 4) : 0)) & 0x3f]; + /* byte 3: low 4 bits (2), high 2 bits (3) */ + *d++ = srcl ? v[((s[1] << 2) + (--srcl ? (s[2] >> 6) : 0)) & 0x3f] : '-'; + /* byte 4: low 6 bits (3) */ + *d++ = srcl ? v[s[2] & 0x3f] : '-'; + if (srcl) srcl--; /* count third character if processed */ + if ((++i) == 15) { /* output 60 characters? */ + i = 0; /* restart line break count, insert CRLF */ + *d++ = '\015'; *d++ = '\012'; + } + } + *d = '\0'; /* tie off string */ + + return ret; /* return the resulting string */ +} diff --git a/src/input/base64.h b/src/input/base64.h new file mode 100644 index 000000000..72feef885 --- /dev/null +++ b/src/input/base64.h @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2000 Robert Kaye + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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 + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * Base64 encoding modified for Musicbrainz + * relicensed under the GNU General Public License for use in xine-lib + * + */ +/* -------------------------------------------------------------------------- + + MusicBrainz -- The Internet music metadatabase + + Copyright (C) 2000 Robert Kaye + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + $Id: base64.h,v 1.1 2004/05/05 09:11:39 hadess Exp $ + +----------------------------------------------------------------------------*/ +/* + * Program: RFC-822 routines (originally from SMTP) + * + * Author: Mark Crispin + * Networks and Distributed Computing + * Computing & Communications + * University of Washington + * Administration Building, AG-44 + * Seattle, WA 98195 + * Internet: MRC@CAC.Washington.EDU + * + * Date: 27 July 1988 + * Last Edited: 10 September 1998 + * + * Sponsorship: The original version of this work was developed in the + * Symbolic Systems Resources Group of the Knowledge Systems + * Laboratory at Stanford University in 1987-88, and was funded + * by the Biomedical Research Technology Program of the National + * Institutes of Health under grant number RR-00785. + * + * Original version Copyright 1988 by The Leland Stanford Junior University + * Copyright 1998 by the University of Washington + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, provided + * that the above copyright notices appear in all copies and that both the + * above copyright notices and this permission notice appear in supporting + * documentation, and that the name of the University of Washington or The + * Leland Stanford Junior University not be used in advertising or publicity + * pertaining to distribution of the software without specific, written prior + * permission. This software is made available "as is", and + * THE UNIVERSITY OF WASHINGTON AND THE LELAND STANFORD JUNIOR UNIVERSITY + * DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO THIS SOFTWARE, + * INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE, AND IN NO EVENT SHALL THE UNIVERSITY OF + * WASHINGTON OR THE LELAND STANFORD JUNIOR UNIVERSITY BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, TORT (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifndef BASE64_H +#define BASE64_H + +unsigned char *rfc822_binary (void *src,unsigned long srcl,unsigned long *len); + +#endif diff --git a/src/input/input_cdda.c b/src/input/input_cdda.c index 1ad33179a..d2025c4d2 100644 --- a/src/input/input_cdda.c +++ b/src/input/input_cdda.c @@ -20,7 +20,7 @@ * Compact Disc Digital Audio (CDDA) Input Plugin * by Mike Melanson (melanson@pcisys.net) * - * $Id: input_cdda.c,v 1.52 2004/05/02 15:17:39 valtri Exp $ + * $Id: input_cdda.c,v 1.53 2004/05/05 09:11:39 hadess Exp $ */ #ifdef HAVE_CONFIG_H @@ -54,6 +54,7 @@ #define LOG */ +#include "sha1.h" #include "xine_internal.h" #include "xineutils.h" #include "input_plugin.h" @@ -452,14 +453,20 @@ static int read_cdrom_toc(int fd, cdrom_toc *toc) { return -1; } +#define XA_INTERVAL ((60 + 90 + 2) * CD_FRAMES) + toc->leadout_track.track_mode = (tocentry.cdte_ctrl & 0x04) ? 1 : 0; toc->leadout_track.first_frame_minute = tocentry.cdte_addr.msf.minute; toc->leadout_track.first_frame_second = tocentry.cdte_addr.msf.second; toc->leadout_track.first_frame_frame = tocentry.cdte_addr.msf.frame; - toc->leadout_track.first_frame = - (tocentry.cdte_addr.msf.minute * CD_SECONDS_PER_MINUTE * CD_FRAMES_PER_SECOND) + - (tocentry.cdte_addr.msf.second * CD_FRAMES_PER_SECOND) + - tocentry.cdte_addr.msf.frame; + if (!ms.xa_flag) { + toc->leadout_track.first_frame = + (tocentry.cdte_addr.msf.minute * CD_SECONDS_PER_MINUTE * CD_FRAMES_PER_SECOND) + + (tocentry.cdte_addr.msf.second * CD_FRAMES_PER_SECOND) + + tocentry.cdte_addr.msf.frame; + } else { + toc->leadout_track.first_frame = ms.addr.lba - XA_INTERVAL + 150; + } return 0; } @@ -1693,6 +1700,46 @@ static unsigned long _cdda_calc_cddb_id(cdda_input_plugin_t *this) { } /* + * Compute Musicbrainz CDIndex ID + */ +static void _cdda_cdindex(cdda_input_plugin_t *this, cdrom_toc *toc) { + char temp[10]; + SHA_INFO sha; + unsigned char digest[33], *base64; + int i, size; + + sha_init(&sha); + + sprintf(temp, "%02X", toc->first_track); + sha_update(&sha, (unsigned char*) temp, strlen(temp)); + + sprintf(temp, "%02X", toc->last_track - toc->ignore_last_track); + sha_update(&sha, (unsigned char*) temp, strlen(temp)); + + sprintf (temp, "%08X", toc->leadout_track.first_frame);// + 150); + sha_update(&sha, (unsigned char*) temp, strlen(temp)); + + for (i = toc->first_track; i <= toc->last_track - toc->ignore_last_track; i++) { + sprintf(temp, "%08X", toc->toc_entries[i - 1].first_frame); + sha_update(&sha, (unsigned char*) temp, strlen(temp)); + } + + for (i = toc->last_track - toc->ignore_last_track + 1; i < 100; i++) { + sha_update(&sha, (unsigned char*) temp, strlen(temp)); + } + + sha_final(digest, &sha); + + base64 = rfc822_binary(digest, 20, &size); + base64[size] = 0; + + printf ("disc id: %s\n", base64); + //_x_meta_info_set(this->stream, XINE_META_INFO_CDINDEX_DISCID, base64); + + free (base64); +} + +/* * return cbbd disc id. */ static unsigned long _cdda_get_cddb_id(cdda_input_plugin_t *this) { @@ -2137,7 +2184,9 @@ static int cdda_plugin_open (input_plugin_t *this_gen ) { /* invalidate cache */ this->cache_first = this->cache_last = -1; - + + /* get the Musicbrainz CDIndex */ + _cdda_cdindex (this, toc); /* * CDDB diff --git a/src/input/sha1.c b/src/input/sha1.c new file mode 100644 index 000000000..aa46f0311 --- /dev/null +++ b/src/input/sha1.c @@ -0,0 +1,329 @@ +/* (PD) 2001 The Bitzi Corporation + * Please see file COPYING or http://bitzi.com/publicdomain + * for more info. + * + * NIST Secure Hash Algorithm + * heavily modified by Uwe Hollerbach <uh@alumni.caltech edu> + * from Peter C. Gutmann's implementation as found in + * Applied Cryptography by Bruce Schneier + * Further modifications to include the "UNRAVEL" stuff, below + * + * This code is in the public domain + * + * $Id: sha1.c,v 1.1 2004/05/05 09:11:39 hadess Exp $ + */ + +#include <string.h> +#include "sha1.h" + +/* UNRAVEL should be fastest & biggest */ +/* UNROLL_LOOPS should be just as big, but slightly slower */ +/* both undefined should be smallest and slowest */ + +#define UNRAVEL +/* #define UNROLL_LOOPS */ + +/* SHA f()-functions */ + +#define f1(x,y,z) ((x & y) | (~x & z)) +#define f2(x,y,z) (x ^ y ^ z) +#define f3(x,y,z) ((x & y) | (x & z) | (y & z)) +#define f4(x,y,z) (x ^ y ^ z) + +/* SHA constants */ + +#define CONST1 0x5a827999L +#define CONST2 0x6ed9eba1L +#define CONST3 0x8f1bbcdcL +#define CONST4 0xca62c1d6L + +/* truncate to 32 bits -- should be a null op on 32-bit machines */ + +#define T32(x) ((x) & 0xffffffffL) + +/* 32-bit rotate */ + +#define R32(x,n) T32(((x << n) | (x >> (32 - n)))) + +/* the generic case, for when the overall rotation is not unraveled */ + +#define FG(n) \ + T = T32(R32(A,5) + f##n(B,C,D) + E + *WP++ + CONST##n); \ + E = D; D = C; C = R32(B,30); B = A; A = T + +/* specific cases, for when the overall rotation is unraveled */ + +#define FA(n) \ + T = T32(R32(A,5) + f##n(B,C,D) + E + *WP++ + CONST##n); B = R32(B,30) + +#define FB(n) \ + E = T32(R32(T,5) + f##n(A,B,C) + D + *WP++ + CONST##n); A = R32(A,30) + +#define FC(n) \ + D = T32(R32(E,5) + f##n(T,A,B) + C + *WP++ + CONST##n); T = R32(T,30) + +#define FD(n) \ + C = T32(R32(D,5) + f##n(E,T,A) + B + *WP++ + CONST##n); E = R32(E,30) + +#define FE(n) \ + B = T32(R32(C,5) + f##n(D,E,T) + A + *WP++ + CONST##n); D = R32(D,30) + +#define FT(n) \ + A = T32(R32(B,5) + f##n(C,D,E) + T + *WP++ + CONST##n); C = R32(C,30) + +/* do SHA transformation */ + +static void sha_transform(SHA_INFO *sha_info) +{ + int i; + SHA_BYTE *dp; + SHA_LONG T, A, B, C, D, E, W[80], *WP; + + dp = sha_info->data; + +/* +the following makes sure that at least one code block below is +traversed or an error is reported, without the necessity for nested +preprocessor if/else/endif blocks, which are a great pain in the +nether regions of the anatomy... +*/ +#undef SWAP_DONE + +#if (SHA_BYTE_ORDER == 1234) +#define SWAP_DONE + for (i = 0; i < 16; ++i) { + T = *((SHA_LONG *) dp); + dp += 4; + W[i] = ((T << 24) & 0xff000000) | ((T << 8) & 0x00ff0000) | + ((T >> 8) & 0x0000ff00) | ((T >> 24) & 0x000000ff); + } +#endif /* SHA_BYTE_ORDER == 1234 */ + +#if (SHA_BYTE_ORDER == 4321) +#define SWAP_DONE + for (i = 0; i < 16; ++i) { + T = *((SHA_LONG *) dp); + dp += 4; + W[i] = T32(T); + } +#endif /* SHA_BYTE_ORDER == 4321 */ + +#if (SHA_BYTE_ORDER == 12345678) +#define SWAP_DONE + for (i = 0; i < 16; i += 2) { + T = *((SHA_LONG *) dp); + dp += 8; + W[i] = ((T << 24) & 0xff000000) | ((T << 8) & 0x00ff0000) | + ((T >> 8) & 0x0000ff00) | ((T >> 24) & 0x000000ff); + T >>= 32; + W[i+1] = ((T << 24) & 0xff000000) | ((T << 8) & 0x00ff0000) | + ((T >> 8) & 0x0000ff00) | ((T >> 24) & 0x000000ff); + } +#endif /* SHA_BYTE_ORDER == 12345678 */ + +#if (SHA_BYTE_ORDER == 87654321) +#define SWAP_DONE + for (i = 0; i < 16; i += 2) { + T = *((SHA_LONG *) dp); + dp += 8; + W[i] = T32(T >> 32); + W[i+1] = T32(T); + } +#endif /* SHA_BYTE_ORDER == 87654321 */ + +#ifndef SWAP_DONE +#error Unknown byte order -- you need to add code here +#endif /* SWAP_DONE */ + + for (i = 16; i < 80; ++i) { + W[i] = W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16]; +#if (SHA_VERSION == 1) + W[i] = R32(W[i], 1); +#endif /* SHA_VERSION */ + } + A = sha_info->digest[0]; + B = sha_info->digest[1]; + C = sha_info->digest[2]; + D = sha_info->digest[3]; + E = sha_info->digest[4]; + WP = W; +#ifdef UNRAVEL + FA(1); FB(1); FC(1); FD(1); FE(1); FT(1); FA(1); FB(1); FC(1); FD(1); + FE(1); FT(1); FA(1); FB(1); FC(1); FD(1); FE(1); FT(1); FA(1); FB(1); + FC(2); FD(2); FE(2); FT(2); FA(2); FB(2); FC(2); FD(2); FE(2); FT(2); + FA(2); FB(2); FC(2); FD(2); FE(2); FT(2); FA(2); FB(2); FC(2); FD(2); + FE(3); FT(3); FA(3); FB(3); FC(3); FD(3); FE(3); FT(3); FA(3); FB(3); + FC(3); FD(3); FE(3); FT(3); FA(3); FB(3); FC(3); FD(3); FE(3); FT(3); + FA(4); FB(4); FC(4); FD(4); FE(4); FT(4); FA(4); FB(4); FC(4); FD(4); + FE(4); FT(4); FA(4); FB(4); FC(4); FD(4); FE(4); FT(4); FA(4); FB(4); + sha_info->digest[0] = T32(sha_info->digest[0] + E); + sha_info->digest[1] = T32(sha_info->digest[1] + T); + sha_info->digest[2] = T32(sha_info->digest[2] + A); + sha_info->digest[3] = T32(sha_info->digest[3] + B); + sha_info->digest[4] = T32(sha_info->digest[4] + C); +#else /* !UNRAVEL */ +#ifdef UNROLL_LOOPS + FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); + FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); + FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); + FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); + FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); + FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); + FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); + FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); +#else /* !UNROLL_LOOPS */ + for (i = 0; i < 20; ++i) { FG(1); } + for (i = 20; i < 40; ++i) { FG(2); } + for (i = 40; i < 60; ++i) { FG(3); } + for (i = 60; i < 80; ++i) { FG(4); } +#endif /* !UNROLL_LOOPS */ + sha_info->digest[0] = T32(sha_info->digest[0] + A); + sha_info->digest[1] = T32(sha_info->digest[1] + B); + sha_info->digest[2] = T32(sha_info->digest[2] + C); + sha_info->digest[3] = T32(sha_info->digest[3] + D); + sha_info->digest[4] = T32(sha_info->digest[4] + E); +#endif /* !UNRAVEL */ +} + +/* initialize the SHA digest */ + +void sha_init(SHA_INFO *sha_info) +{ + sha_info->digest[0] = 0x67452301L; + sha_info->digest[1] = 0xefcdab89L; + sha_info->digest[2] = 0x98badcfeL; + sha_info->digest[3] = 0x10325476L; + sha_info->digest[4] = 0xc3d2e1f0L; + sha_info->count_lo = 0L; + sha_info->count_hi = 0L; + sha_info->local = 0; +} + +/* update the SHA digest */ + +void sha_update(SHA_INFO *sha_info, SHA_BYTE *buffer, int count) +{ + int i; + SHA_LONG clo; + + clo = T32(sha_info->count_lo + ((SHA_LONG) count << 3)); + if (clo < sha_info->count_lo) { + ++sha_info->count_hi; + } + sha_info->count_lo = clo; + sha_info->count_hi += (SHA_LONG) count >> 29; + if (sha_info->local) { + i = SHA_BLOCKSIZE - sha_info->local; + if (i > count) { + i = count; + } + memcpy(((SHA_BYTE *) sha_info->data) + sha_info->local, buffer, i); + count -= i; + buffer += i; + sha_info->local += i; + if (sha_info->local == SHA_BLOCKSIZE) { + sha_transform(sha_info); + } else { + return; + } + } + while (count >= SHA_BLOCKSIZE) { + memcpy(sha_info->data, buffer, SHA_BLOCKSIZE); + buffer += SHA_BLOCKSIZE; + count -= SHA_BLOCKSIZE; + sha_transform(sha_info); + } + memcpy(sha_info->data, buffer, count); + sha_info->local = count; +} + +/* finish computing the SHA digest */ + +void sha_final(unsigned char digest[20], SHA_INFO *sha_info) +{ + int count; + SHA_LONG lo_bit_count, hi_bit_count; + + lo_bit_count = sha_info->count_lo; + hi_bit_count = sha_info->count_hi; + count = (int) ((lo_bit_count >> 3) & 0x3f); + ((SHA_BYTE *) sha_info->data)[count++] = 0x80; + if (count > SHA_BLOCKSIZE - 8) { + memset(((SHA_BYTE *) sha_info->data) + count, 0, SHA_BLOCKSIZE - count); + sha_transform(sha_info); + memset((SHA_BYTE *) sha_info->data, 0, SHA_BLOCKSIZE - 8); + } else { + memset(((SHA_BYTE *) sha_info->data) + count, 0, + SHA_BLOCKSIZE - 8 - count); + } + sha_info->data[56] = (unsigned char) ((hi_bit_count >> 24) & 0xff); + sha_info->data[57] = (unsigned char) ((hi_bit_count >> 16) & 0xff); + sha_info->data[58] = (unsigned char) ((hi_bit_count >> 8) & 0xff); + sha_info->data[59] = (unsigned char) ((hi_bit_count >> 0) & 0xff); + sha_info->data[60] = (unsigned char) ((lo_bit_count >> 24) & 0xff); + sha_info->data[61] = (unsigned char) ((lo_bit_count >> 16) & 0xff); + sha_info->data[62] = (unsigned char) ((lo_bit_count >> 8) & 0xff); + sha_info->data[63] = (unsigned char) ((lo_bit_count >> 0) & 0xff); + sha_transform(sha_info); + digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff); + digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff); + digest[ 2] = (unsigned char) ((sha_info->digest[0] >> 8) & 0xff); + digest[ 3] = (unsigned char) ((sha_info->digest[0] ) & 0xff); + digest[ 4] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff); + digest[ 5] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff); + digest[ 6] = (unsigned char) ((sha_info->digest[1] >> 8) & 0xff); + digest[ 7] = (unsigned char) ((sha_info->digest[1] ) & 0xff); + digest[ 8] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff); + digest[ 9] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff); + digest[10] = (unsigned char) ((sha_info->digest[2] >> 8) & 0xff); + digest[11] = (unsigned char) ((sha_info->digest[2] ) & 0xff); + digest[12] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff); + digest[13] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff); + digest[14] = (unsigned char) ((sha_info->digest[3] >> 8) & 0xff); + digest[15] = (unsigned char) ((sha_info->digest[3] ) & 0xff); + digest[16] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff); + digest[17] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff); + digest[18] = (unsigned char) ((sha_info->digest[4] >> 8) & 0xff); + digest[19] = (unsigned char) ((sha_info->digest[4] ) & 0xff); +} + +/* compute the SHA digest of a FILE stream */ + +#define BLOCK_SIZE 8192 + +void sha_stream(unsigned char digest[20], SHA_INFO *sha_info, FILE *fin) +{ + int i; + SHA_BYTE data[BLOCK_SIZE]; + + sha_init(sha_info); + while ((i = fread(data, 1, BLOCK_SIZE, fin)) > 0) { + sha_update(sha_info, data, i); + } + sha_final(digest, sha_info); +} + +/* print a SHA digest */ + +void sha_print(unsigned char digest[20]) +{ + int i, j; + + for (j = 0; j < 5; ++j) { + for (i = 0; i < 4; ++i) { + printf("%02x", *digest++); + } + printf("%c", (j < 4) ? ' ' : '\n'); + } +} + +char *sha_version(void) +{ +#if (SHA_VERSION == 1) + static char *version = "SHA-1"; +#else + static char *version = "SHA"; +#endif + return(version); +} + diff --git a/src/input/sha1.h b/src/input/sha1.h new file mode 100644 index 000000000..6657c92e3 --- /dev/null +++ b/src/input/sha1.h @@ -0,0 +1,61 @@ +/* NIST Secure Hash Algorithm */ +/* heavily modified by Uwe Hollerbach <uh@alumni.caltech edu> */ +/* from Peter C. Gutmann's implementation as found in */ +/* Applied Cryptography by Bruce Schneier */ +/* This code is in the public domain */ +/* $Id: sha1.h,v 1.1 2004/05/05 09:11:39 hadess Exp $ */ + +#ifndef SHA_H +#define SHA_H + +#include <stdlib.h> +#include <stdio.h> + +/* Useful defines & typedefs */ +typedef unsigned char SHA_BYTE; /* 8-bit quantity */ +typedef unsigned long SHA_LONG; /* 32-or-more-bit quantity */ + +#define SHA_BLOCKSIZE 64 +#define SHA_DIGESTSIZE 20 + +typedef struct { + SHA_LONG digest[5]; /* message digest */ + SHA_LONG count_lo, count_hi; /* 64-bit bit count */ + SHA_BYTE data[SHA_BLOCKSIZE]; /* SHA data buffer */ + int local; /* unprocessed amount in data */ +} SHA_INFO; + +void sha_init(SHA_INFO *); +void sha_update(SHA_INFO *, SHA_BYTE *, int); +void sha_final(unsigned char [20], SHA_INFO *); + +void sha_stream(unsigned char [20], SHA_INFO *, FILE *); +void sha_print(unsigned char [20]); +char *sha_version(void); + +#define SHA_VERSION 1 + +#ifdef HAVE_CONFIG_H +#include "config.h" + +#ifdef WORDS_BIGENDIAN +# if SIZEOF_LONG == 4 +# define SHA_BYTE_ORDER 4321 +# elif SIZEOF_LONG == 8 +# define SHA_BYTE_ORDER 87654321 +# endif +#else +# if SIZEOF_LONG == 4 +# define SHA_BYTE_ORDER 1234 +# elif SIZEOF_LONG == 8 +# define SHA_BYTE_ORDER 12345678 +# endif +#endif + +#else + +#define SHA_BYTE_ORDER 1234 + +#endif + +#endif /* SHA_H */ |