/* Declarations of functions and data types used for SHA1 sum library functions. Copyright (C) 2000, 2001, 2003 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 _ALPM_SHA1_H #define _ALPM_SHA1_H #include <stdio.h> #include <limits.h> #define rol(x,n) ( ((x) << (n)) | ((x) >> (32 -(n))) ) /* TODO check this comment */ /* The code below is from md5.h (from coreutils), little modifications */ #define UINT_MAX_32_BITS 4294967295U /* This new ifdef allows splint to not fail on its static code check */ #ifdef S_SPLINT_S typedef unsigned int sha_uint32; #else #if UINT_MAX == UINT_MAX_32_BITS typedef unsigned int sha_uint32; #else #if USHRT_MAX == UINT_MAX_32_BITS typedef unsigned short sha_uint32; #else #if ULONG_MAX == UINT_MAX_32_BITS typedef unsigned long sha_uint32; #else /* The following line is intended to evoke an error. Using #error is not portable enough. */ #error "Cannot determine unsigned 32-bit data type" #endif /* ULONG_MAX */ #endif /* USHRT_MAX */ #endif /* UINT_MAX */ #endif /* S_SPLINT_S */ /* We have to make a guess about the integer type equivalent in size to pointers which should always be correct. */ typedef unsigned long int sha_uintptr; /* Structure to save state of computation between the single steps. */ struct sha_ctx { sha_uint32 A; sha_uint32 B; sha_uint32 C; sha_uint32 D; sha_uint32 E; sha_uint32 total[2]; sha_uint32 buflen; char buffer[128]; }; /* Needed for pacman */ char *_alpm_SHAFile (char *); #endif /* _ALPM_SHA1_H */ /* vim: set ts=2 sw=2 noet: */