56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
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* Copyright (c) 2000-2001 Proofpoint, Inc. and its suppliers.
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* All rights reserved.
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the sendmail distribution.
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*
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* $Id: limits.h,v 1.7 2013-11-22 20:51:31 ca Exp $
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*/
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/*
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** <sm/limits.h>
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** This header file is a portability wrapper for <limits.h>.
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** It includes <limits.h>, then it ensures that the following macros
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** from the C 1999 standard for <limits.h> are defined:
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** LLONG_MIN, LLONG_MAX
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** ULLONG_MAX
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*/
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#ifndef SM_LIMITS_H
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# define SM_LIMITS_H
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# include <limits.h>
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# include <sm/types.h>
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# include <sys/param.h>
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/*
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** The following assumes two's complement binary arithmetic.
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*/
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# ifndef LLONG_MIN
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# define LLONG_MIN ((LONGLONG_T)(~(ULLONG_MAX >> 1)))
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# endif /* ! LLONG_MIN */
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# ifndef LLONG_MAX
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# define LLONG_MAX ((LONGLONG_T)(ULLONG_MAX >> 1))
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# endif /* ! LLONG_MAX */
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# ifndef ULLONG_MAX
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# define ULLONG_MAX ((ULONGLONG_T)(-1))
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# endif /* ! ULLONG_MAX */
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/*
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** PATH_MAX is defined by the POSIX standard. All modern systems
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** provide it. Older systems define MAXPATHLEN in <sys/param.h> instead.
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*/
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# ifndef PATH_MAX
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# ifdef MAXPATHLEN
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# define PATH_MAX MAXPATHLEN
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# else /* MAXPATHLEN */
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# define PATH_MAX 2048
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# endif /* MAXPATHLEN */
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# endif /* ! PATH_MAX */
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#endif /* ! SM_LIMITS_H */
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