| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Samba utility functions
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| 4 | Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
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| 5 |
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| 6 | This program is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 3 of the License, or
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| 9 | (at your option) any later version.
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| 10 |
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| 11 | This program is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 18 | */
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| 19 |
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| 20 | #ifndef __UTIL_ATTR_H__
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| 21 | #define __UTIL_ATTR_H__
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| 22 |
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| 23 | #ifndef _UNUSED_
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| 24 | #ifdef __GNUC__
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| 25 | /** gcc attribute used on function parameters so that it does not emit
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| 26 | * warnings about them being unused. **/
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| 27 | # define _UNUSED_ __attribute__ ((unused))
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| 28 | #else
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| 29 | # define _UNUSED_
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| 30 | /** Feel free to add definitions for other compilers here. */
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| 31 | #endif
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| 32 | #endif
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| 33 | #ifndef UNUSED
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| 34 | #define UNUSED(param) param _UNUSED_
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| 35 | #endif
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| 36 |
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| 37 | #ifndef _DEPRECATED_
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| 38 | #ifdef HAVE___ATTRIBUTE__
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| 39 | #define _DEPRECATED_ __attribute__ ((deprecated))
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| 40 | #else
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| 41 | #define _DEPRECATED_
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| 42 | #endif
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| 43 | #endif
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| 44 |
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| 45 | #ifndef _WARN_UNUSED_RESULT_
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| 46 | #ifdef HAVE___ATTRIBUTE__
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| 47 | #define _WARN_UNUSED_RESULT_ __attribute__ ((warn_unused_result))
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| 48 | #else
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| 49 | #define _WARN_UNUSED_RESULT_
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| 50 | #endif
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| 51 | #endif
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| 52 |
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| 53 | #ifndef _NORETURN_
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| 54 | #ifdef HAVE___ATTRIBUTE__
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| 55 | #define _NORETURN_ __attribute__ ((noreturn))
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| 56 | #else
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| 57 | #define _NORETURN_
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| 58 | #endif
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| 59 | #endif
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| 60 |
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| 61 | #ifndef _PURE_
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| 62 | #ifdef HAVE___ATTRIBUTE__
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| 63 | #define _PURE_ __attribute__((pure))
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| 64 | #else
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| 65 | #define _PURE_
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| 66 | #endif
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| 67 | #endif
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| 68 |
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| 69 | #ifndef NONNULL
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| 70 | #ifdef HAVE___ATTRIBUTE__
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| 71 | #define NONNULL(param) param __attribute__((nonnull))
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| 72 | #else
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| 73 | #define NONNULL(param) param
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| 74 | #endif
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| 75 | #endif
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| 76 |
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| 77 | #ifndef PRINTF_ATTRIBUTE
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| 78 | #ifdef HAVE___ATTRIBUTE__
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| 79 | /** Use gcc attribute to check printf fns. a1 is the 1-based index of
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| 80 | * the parameter containing the format, and a2 the index of the first
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| 81 | * argument. Note that some gcc 2.x versions don't handle this
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| 82 | * properly **/
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| 83 | #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
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| 84 | #else
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| 85 | #define PRINTF_ATTRIBUTE(a1, a2)
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| 86 | #endif
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| 87 | #endif
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| 88 |
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| 89 | #ifndef FORMAT_ATTRIBUTE
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| 90 | #ifdef HAVE___ATTRIBUTE__
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| 91 | /** Use gcc attribute to check printf fns. a1 is argument to format()
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| 92 | * in the above macro. This is needed to support Heimdal's printf
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| 93 | * decorations. Note that some gcc 2.x versions don't handle this
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| 94 | * properly. **/
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| 95 | #define FORMAT_ATTRIBUTE(a) __attribute__ ((format a))
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| 96 | #else
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| 97 | #define FORMAT_ATTRIBUTE(a)
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| 98 | #endif
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| 99 | #endif
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| 100 |
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| 101 | #endif /* __UTIL_ATTR_H__ */
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