comparison: honeyd/cdefs.h
honeyd/cdefs.h
- changeset 747
- 0b57a67721e7
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| 1 /* | |
| 2 ** cdefs.h: ISO C interface | |
| 3 ** Most of this file was developed by Sendmail, Incorporated, so: | |
| 4 ** | |
| 5 ** Copyright (c) 2000-2002 Sendmail, Inc. and its suppliers. | |
| 6 ** | |
| 7 ** Permission to use, copy, modify, and distribute this software for | |
| 8 ** any purpose with or without fee is hereby granted, provided that | |
| 9 ** the above copyright notice and this permission notice appear in all | |
| 10 ** copies. | |
| 11 ** | |
| 12 ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
| 13 ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 14 ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 15 ** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR | |
| 16 ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 17 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 18 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
| 19 ** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 20 ** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 21 ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 22 ** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 23 ** SUCH DAMAGE. | |
| 24 ** | |
| 25 */ | |
| 26 | |
| 27 /* | |
| 28 ** BSD and Linux already have <sys/cdefs.h> which defines a set of C | |
| 29 ** language portability macros that are a defacto standard in the open | |
| 30 ** source community. This file allows for building on platforms lacking | |
| 31 ** these definitions. | |
| 32 */ | |
| 33 #ifndef HOND_CDEFS_H | |
| 34 # define HOND_CDEFS_H | |
| 35 | |
| 36 # if defined(__cplusplus) | |
| 37 # define __BEGIN_DECLS extern "C" { | |
| 38 # define __END_DECLS }; | |
| 39 # else /* defined(__cplusplus) */ | |
| 40 # define __BEGIN_DECLS | |
| 41 # define __END_DECLS | |
| 42 # endif /* defined(__cplusplus) */ | |
| 43 # if defined(__STDC__) || defined(__cplusplus) | |
| 44 # ifndef __P | |
| 45 # define __P(protos) protos | |
| 46 # endif /* __P */ | |
| 47 # define __CONCAT(x,y) x ## y | |
| 48 # define __STRING(x) #x | |
| 49 # else /* defined(__STDC__) || defined(__cplusplus) */ | |
| 50 # define __P(protos) () | |
| 51 # define __CONCAT(x,y) x/**/y | |
| 52 # define __STRING(x) "x" | |
| 53 # define const | |
| 54 # define signed | |
| 55 # define volatile | |
| 56 # endif /* defined(__STDC__) || defined(__cplusplus) */ | |
| 57 | |
| 58 /* | |
| 59 ** Define HOND_DEAD, a macro used to declare functions that do not return | |
| 60 ** to their caller. | |
| 61 */ | |
| 62 # ifndef HOND_DEAD | |
| 63 # if __GNUC__ >= 2 | |
| 64 # if __GNUC__ == 2 && __GNUC_MINOR__ < 5 | |
| 65 # define HOND_DEAD(proto) volatile proto | |
| 66 # else /* __GNUC__ == 2 && __GNUC_MINOR__ < 5 */ | |
| 67 # define HOND_DEAD(proto) proto __attribute__((__noreturn__)) | |
| 68 # endif /* __GNUC__ == 2 && __GNUC_MINOR__ < 5 */ | |
| 69 # else /* __GNUC__ >= 2 */ | |
| 70 # define HOND_DEAD(proto) proto | |
| 71 # endif /* __GNUC__ >= 2 */ | |
| 72 # endif /* HOND_DEAD */ | |
| 73 | |
| 74 /* | |
| 75 ** Define HOND_UNUSED, a macro used to declare variables that may be unused. | |
| 76 */ | |
| 77 # ifndef HOND_UNUSED | |
| 78 # if __GNUC__ >= 2 | |
| 79 # if __GNUC__ == 2 && __GNUC_MINOR__ < 7 | |
| 80 # define HOND_UNUSED(decl) decl | |
| 81 # else /* __GNUC__ == 2 && __GNUC_MINOR__ < 7 */ | |
| 82 # define HOND_UNUSED(decl) decl __attribute__((__unused__)) | |
| 83 # endif /* __GNUC__ == 2 && __GNUC_MINOR__ < 7 */ | |
| 84 # else /* __GNUC__ >= 2 */ | |
| 85 # define HOND_UNUSED(decl) decl | |
| 86 # endif /* __GNUC__ >= 2 */ | |
| 87 # endif /* HOND_UNUSED */ | |
| 88 | |
| 89 /* | |
| 90 ** The HOND_NONVOLATILE macro is used to declare variables that are not | |
| 91 ** volatile, but which must be declared volatile when compiling with | |
| 92 ** gcc -O -Wall in order to suppress bogus warning messages. | |
| 93 ** | |
| 94 ** Variables that actually are volatile should be declared volatile | |
| 95 ** using the "volatile" keyword. If a variable actually is volatile, | |
| 96 ** then HOND_NONVOLATILE should not be used. | |
| 97 ** | |
| 98 ** To compile source code with gcc and see all non-bogus warnings use: | |
| 99 ** | |
| 100 ** gcc -O -Wall -DHOND_OMIT_BOGUS_WARNINGS ... | |
| 101 ** | |
| 102 ** Do not use -DHOND_OMIT_BOGUS_WARNINGS when compiling production | |
| 103 ** software, because there is a performance hit. | |
| 104 */ | |
| 105 # ifdef HOND_OMIT_BOGUS_WARNINGS | |
| 106 # define HOND_NONVOLATILE volatile | |
| 107 # else /* HOND_OMIT_BOGUS_WARNINGS */ | |
| 108 # define HOND_NONVOLATILE | |
| 109 # endif /* HOND_OMIT_BOGUS_WARNINGS */ | |
| 110 | |
| 111 /* | |
| 112 ** Turn on format string argument checking. | |
| 113 */ | |
| 114 # ifndef HOND_CONF_FORMAT_TEST | |
| 115 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 | |
| 116 # define HOND_CONF_FORMAT_TEST 1 | |
| 117 # else /* __GNUC__ == 2 && __GNUC_MINOR__ >= 7 */ | |
| 118 # define HOND_CONF_FORMAT_TEST 0 | |
| 119 # endif /* __GNUC__ == 2 && __GNUC_MINOR__ >= 7 */ | |
| 120 # endif /* HOND_CONF_FORMAT_TEST */ | |
| 121 | |
| 122 # ifndef PRINTFLIKE | |
| 123 # if HOND_CONF_FORMAT_TEST | |
| 124 # define PRINTFLIKE(x,y) __attribute__ ((__format__ (__printf__, x, y))) | |
| 125 # else /* HOND_CONF_FORMAT_TEST */ | |
| 126 # define PRINTFLIKE(x,y) | |
| 127 # endif /* HOND_CONF_FORMAT_TEST */ | |
| 128 # endif /* ! PRINTFLIKE */ | |
| 129 | |
| 130 # ifndef SCANFLIKE | |
| 131 # if HOND_CONF_FORMAT_TEST | |
| 132 # define SCANFLIKE(x,y) __attribute__ ((__format__ (__scanf__, x, y))) | |
| 133 # else /* HOND_CONF_FORMAT_TEST */ | |
| 134 # define SCANFLIKE(x,y) | |
| 135 # endif /* HOND_CONF_FORMAT_TEST */ | |
| 136 # endif /* ! SCANFLIKE */ | |
| 137 | |
| 138 #endif /* ! HOND_CDEFS_H */ | |
| 139 |
