116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: memsum.c /main/3 1995/11/01 17:34:05 rswiston $ */
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/***************************************************************
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* *
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* AT&T - PROPRIETARY *
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* *
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* THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
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* AT&T CORP. *
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* *
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* Copyright (c) 1995 AT&T Corp. *
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* All Rights Reserved *
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* *
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* This software is licensed by AT&T Corp. *
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* under the terms and conditions of the license in *
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* http://www.research.att.com/orgs/ssr/book/reuse *
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* *
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* This software was created by the *
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* Software Engineering Research Department *
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* AT&T Bell Laboratories *
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* *
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* For further information contact *
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* gsf@research.att.com *
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* *
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***************************************************************/
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/* : : generated by proto : : */
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#if !defined(__PROTO__)
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#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
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#if defined(__cplusplus)
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#define __MANGLE__ "C"
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#else
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#define __MANGLE__
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#endif
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#define __STDARG__
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#define __PROTO__(x) x
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#define __OTORP__(x)
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#define __PARAM__(n,o) n
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#if !defined(__STDC__) && !defined(__cplusplus)
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#if !defined(c_plusplus)
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#define const
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#endif
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#define signed
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#define void int
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#define volatile
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#define __V_ char
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#else
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#define __V_ void
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#endif
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#else
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#define __PROTO__(x) ()
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#define __OTORP__(x) x
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#define __PARAM__(n,o) o
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#define __MANGLE__
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#define __V_ char
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#define const
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#define signed
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#define void int
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#define volatile
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#endif
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#if defined(__cplusplus) || defined(c_plusplus)
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#define __VARARG__ ...
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#else
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#define __VARARG__
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#endif
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#if defined(__STDARG__)
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#define __VA_START__(p,a) va_start(p,a)
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#else
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#define __VA_START__(p,a) va_start(p)
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#endif
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#endif
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#include "hashlib.h"
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/*
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* return a running 32 bit checksum of buffer b of length n
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*
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* c is the return value from a previous
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* memsum() or strsum() call, 0 on the first call
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*
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* the result is the same on all implementations
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*/
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unsigned long
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memsum __PARAM__((const __V_* ap, int n, register unsigned long c), (ap, n, c)) __OTORP__(const __V_* ap; int n; register unsigned long c;){
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register const unsigned char* p = (const unsigned char*)ap;
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register const unsigned char* e = p + n;
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while (p < e) HASHPART(c, *p++);
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#if LONG_MAX > 2147483647
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return(c & 0xffffffff);
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#else
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return(c);
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#endif
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}
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