1 /** 2 * \file common.h 3 * 4 * Common definitions for LDNS 5 */ 6 7 /** 8 * a Net::DNS like library for C 9 * 10 * (c) NLnet Labs, 2004-2006 11 * 12 * See the file LICENSE for the license 13 */ 14 15 #ifndef LDNS_COMMON_H 16 #define LDNS_COMMON_H 17 18 /* 19 * The build configuration that is used in the distributed headers, 20 * as detected and determined by the auto configure script. 21 */ 22 #define LDNS_BUILD_CONFIG_HAVE_SSL 1 23 #define LDNS_BUILD_CONFIG_HAVE_INTTYPES_H 1 24 #define LDNS_BUILD_CONFIG_HAVE_ATTR_FORMAT 1 25 #define LDNS_BUILD_CONFIG_HAVE_ATTR_UNUSED 1 26 #define LDNS_BUILD_CONFIG_HAVE_SOCKLEN_T 1 27 28 /* 29 * HAVE_STDBOOL_H is not available when distributed as a library, but no build 30 * configuration variables may be used (like those above) because the header 31 * is sometimes only available when using special compiler flags to enable the 32 * c99 environment. Because we cannot force the usage of this flag, we have to 33 * provide a default type. Below what is suggested by the autoconf manual. 34 */ 35 /*@ignore@*/ 36 /* splint barfs on this construct */ 37 #ifdef HAVE_STDBOOL_H 38 # include <stdbool.h> 39 #else 40 # ifndef HAVE__BOOL 41 # ifdef __cplusplus 42 typedef bool _Bool; 43 # else 44 # define _Bool signed char 45 # endif 46 # endif 47 # define bool _Bool 48 # define false 0 49 # define true 1 50 # define __bool_true_false_are_defined 1 51 #endif 52 /*@end@*/ 53 54 #if LDNS_BUILD_CONFIG_HAVE_ATTR_FORMAT 55 #define ATTR_FORMAT(archetype, string_index, first_to_check) \ 56 __attribute__ ((format (archetype, string_index, first_to_check))) 57 #else /* !LDNS_BUILD_CONFIG_HAVE_ATTR_FORMAT */ 58 #define ATTR_FORMAT(archetype, string_index, first_to_check) /* empty */ 59 #endif /* !LDNS_BUILD_CONFIG_HAVE_ATTR_FORMAT */ 60 61 #if defined(__cplusplus) 62 #define ATTR_UNUSED(x) 63 #elif LDNS_BUILD_CONFIG_HAVE_ATTR_UNUSED 64 #define ATTR_UNUSED(x) x __attribute__((unused)) 65 #else /* !LDNS_BUILD_CONFIG_HAVE_ATTR_UNUSED */ 66 #define ATTR_UNUSED(x) x 67 #endif /* !LDNS_BUILD_CONFIG_HAVE_ATTR_UNUSED */ 68 69 #if !LDNS_BUILD_CONFIG_HAVE_SOCKLEN_T 70 typedef int socklen_t; 71 #endif 72 73 #endif /* LDNS_COMMON_H */ 74