82 lines
3.1 KiB
C
82 lines
3.1 KiB
C
/*
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* Copyright (c) 2010, Oracle and/or its affiliates.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef XPRINTF_H
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#define XPRINTF_H
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#include <stdio.h>
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#include <stdarg.h>
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#include <X11/Xfuncproto.h>
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#ifndef _X_RESTRICT_KYWD
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#if defined(restrict) /* assume autoconf set it correctly */ || \
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(defined(__STDC__) && (__STDC_VERSION__ - 0 >= 199901L)) /* C99 */
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#define _X_RESTRICT_KYWD restrict
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#elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* gcc w/C89+extensions */
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#define _X_RESTRICT_KYWD __restrict__
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#else
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#define _X_RESTRICT_KYWD
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#endif
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#endif
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/*
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* These functions provide a portable implementation of the common (but not
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* yet universal) asprintf & vasprintf routines to allocate a buffer big
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* enough to sprintf the arguments to. The XNF variants terminate the server
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* if the allocation fails.
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* The buffer allocated is returned in the pointer provided in the first
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* argument. The return value is the size of the allocated buffer, or -1
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* on failure.
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*/
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extern _X_EXPORT int
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Xasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
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_X_ATTRIBUTE_PRINTF(2, 3);
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extern _X_EXPORT int
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Xvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
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_X_ATTRIBUTE_PRINTF(2, 0);
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extern _X_EXPORT int
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XNFasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
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_X_ATTRIBUTE_PRINTF(2, 3);
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extern _X_EXPORT int
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XNFvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
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_X_ATTRIBUTE_PRINTF(2, 0);
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#if !defined(HAVE_ASPRINTF) && !defined(HAVE_VASPRINTF)
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#define asprintf Xasprintf
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#define vasprintf Xvasprintf
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#endif
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/*
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* These functions provide a portable implementation of the linux kernel
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* scnprintf & vscnprintf routines that return the number of bytes actually
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* copied during a snprintf, (excluding the final '\0').
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*/
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extern _X_EXPORT int
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Xscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, ...)
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_X_ATTRIBUTE_PRINTF(3,4);
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extern _X_EXPORT int
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Xvscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, va_list va)
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_X_ATTRIBUTE_PRINTF(3,0);
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#endif /* XPRINTF_H */
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