From d6c74352427367a334d37469962bbcf1b9ae364c Mon Sep 17 00:00:00 2001 From: Timo Teras Date: Thu, 17 Apr 2008 14:09:13 +0000 Subject: Initial commit of some stuff written so far. Still in state of flux. Expect breakage and major changes. --- src/md5.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/md5.h (limited to 'src/md5.h') diff --git a/src/md5.h b/src/md5.h new file mode 100644 index 0000000..6996c4d --- /dev/null +++ b/src/md5.h @@ -0,0 +1,60 @@ +/* md5.h - Compute MD5 checksum of files or strings according to the + * definition of MD5 in RFC 1321 from April 1992. + * Copyright (C) 1995-1999 Free Software Foundation, Inc. + * + * 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, 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 + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef MD5_H +#define MD5_H + +#include + +typedef unsigned char md5sum_t[16]; +typedef u_int32_t md5_uint32; + +struct md5_ctx +{ + md5_uint32 A; + md5_uint32 B; + md5_uint32 C; + md5_uint32 D; + + md5_uint32 total[2]; + md5_uint32 buflen; + char buffer[128]; +}; + +/* Initialize structure containing state of computation. + (RFC 1321, 3.3: Step 3) */ +void md5_init(struct md5_ctx *ctx); + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is NOT required that LEN is a multiple of 64. */ +void md5_process(struct md5_ctx *ctx, const void *buffer, size_t len); + +/* Process the remaining bytes in the buffer and put result from CTX + in first 16 bytes following RESBUF. The result is always in little + endian byte order, so that a byte-wise output yields to the wanted + ASCII representation of the message digest. + + IMPORTANT: On some systems it is required that RESBUF is correctly + aligned for a 32 bits value. */ +void md5_finish(struct md5_ctx *ctx, md5sum_t resbuf); + +#endif + -- cgit v1.2.3