| 1 | /*
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| 2 | * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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| 3 | *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 5 | * copy of this software and associated documentation files (the "Software"),
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| 6 | * to deal in the Software without restriction, including without limitation
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the
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| 9 | * Software is furnished to do so, subject to the following conditions:
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| 10 | *
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| 11 | * The above copyright notice and this permission notice (including the next
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| 12 | * paragraph) shall be included in all copies or substantial portions of the
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| 13 | * Software.
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| 14 | *
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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| 21 | * DEALINGS IN THE SOFTWARE.
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| 22 | */
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| 23 |
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| 24 | #ifndef XPRINTF_H
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| 25 | #define XPRINTF_H
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| 26 |
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| 27 | #include <stdio.h>
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| 28 | #include <stdarg.h>
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| 29 | #include <X11/Xfuncproto.h>
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| 30 |
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| 31 | #ifndef _X_RESTRICT_KYWD
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| 32 | #if defined(restrict) /* assume autoconf set it correctly */ || \
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| 33 | (defined(__STDC__) && (__STDC_VERSION__ - 0 >= 199901L)) /* C99 */
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| 34 | #define _X_RESTRICT_KYWD restrict
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| 35 | #elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* gcc w/C89+extensions */
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| 36 | #define _X_RESTRICT_KYWD __restrict__
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| 37 | #else
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| 38 | #define _X_RESTRICT_KYWD
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| 39 | #endif
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| 40 | #endif
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| 41 |
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| 42 | /*
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| 43 | * These functions provide a portable implementation of the common (but not
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| 44 | * yet universal) asprintf & vasprintf routines to allocate a buffer big
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| 45 | * enough to sprintf the arguments to. The XNF variants terminate the server
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| 46 | * if the allocation fails.
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| 47 | * The buffer allocated is returned in the pointer provided in the first
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| 48 | * argument. The return value is the size of the allocated buffer, or -1
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| 49 | * on failure.
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| 50 | */
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| 51 | extern _X_EXPORT int
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| 52 | Xasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
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| 53 | _X_ATTRIBUTE_PRINTF(2, 3);
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| 54 | extern _X_EXPORT int
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| 55 | Xvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
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| 56 | _X_ATTRIBUTE_PRINTF(2, 0);
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| 57 | extern _X_EXPORT int
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| 58 | XNFasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, ...)
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| 59 | _X_ATTRIBUTE_PRINTF(2, 3);
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| 60 | extern _X_EXPORT int
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| 61 | XNFvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
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| 62 | _X_ATTRIBUTE_PRINTF(2, 0);
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| 63 |
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| 64 | #if !defined(HAVE_ASPRINTF) && !defined(HAVE_VASPRINTF)
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| 65 | #define asprintf Xasprintf
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| 66 | #define vasprintf Xvasprintf
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| 67 | #endif
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| 68 |
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| 69 | /*
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| 70 | * These functions provide a portable implementation of the linux kernel
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| 71 | * scnprintf & vscnprintf routines that return the number of bytes actually
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| 72 | * copied during a snprintf, (excluding the final '\0').
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| 73 | */
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| 74 | extern _X_EXPORT int
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| 75 | Xscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, ...)
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| 76 | _X_ATTRIBUTE_PRINTF(3,4);
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| 77 | extern _X_EXPORT int
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| 78 | Xvscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, va_list va)
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| 79 | _X_ATTRIBUTE_PRINTF(3,0);
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| 80 |
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| 81 | #endif /* XPRINTF_H */
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