| 1 | /* vi: set sw=4 ts=4: */ |
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| 2 | /* |
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| 3 | * Copyright 2006, Bernhard Reutner-Fischer |
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| 4 | * |
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| 5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
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| 6 | */ |
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| 7 | #ifndef BB_PLATFORM_H |
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| 8 | #define BB_PLATFORM_H 1 |
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| 9 | |
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| 10 | |
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| 11 | /* Convenience macros to test the version of gcc. */ |
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| 12 | #undef __GNUC_PREREQ |
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| 13 | #if defined __GNUC__ && defined __GNUC_MINOR__ |
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| 14 | # define __GNUC_PREREQ(maj, min) \ |
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| 15 | ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) |
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| 16 | #else |
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| 17 | # define __GNUC_PREREQ(maj, min) 0 |
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| 18 | #endif |
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| 19 | |
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| 20 | /* __restrict is known in EGCS 1.2 and above. */ |
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| 21 | #if !__GNUC_PREREQ(2,92) |
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| 22 | # ifndef __restrict |
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| 23 | # define __restrict |
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| 24 | # endif |
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| 25 | #endif |
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| 26 | |
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| 27 | #if !__GNUC_PREREQ(2,7) |
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| 28 | # ifndef __attribute__ |
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| 29 | # define __attribute__(x) |
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| 30 | # endif |
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| 31 | #endif |
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| 32 | |
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| 33 | #undef inline |
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| 34 | #if defined(__STDC_VERSION__) && __STDC_VERSION__ > 199901L |
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| 35 | /* it's a keyword */ |
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| 36 | #elif __GNUC_PREREQ(2,7) |
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| 37 | # define inline __inline__ |
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| 38 | #else |
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| 39 | # define inline |
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| 40 | #endif |
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| 41 | |
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| 42 | #ifndef __const |
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| 43 | # define __const const |
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| 44 | #endif |
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| 45 | |
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| 46 | #define UNUSED_PARAM __attribute__ ((__unused__)) |
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| 47 | #define NORETURN __attribute__ ((__noreturn__)) |
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| 48 | /* "The malloc attribute is used to tell the compiler that a function |
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| 49 | * may be treated as if any non-NULL pointer it returns cannot alias |
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| 50 | * any other pointer valid when the function returns. This will often |
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| 51 | * improve optimization. Standard functions with this property include |
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| 52 | * malloc and calloc. realloc-like functions have this property as long |
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| 53 | * as the old pointer is never referred to (including comparing it |
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| 54 | * to the new pointer) after the function returns a non-NULL value." |
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| 55 | */ |
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| 56 | #define RETURNS_MALLOC __attribute__ ((malloc)) |
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| 57 | #define PACKED __attribute__ ((__packed__)) |
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| 58 | #define ALIGNED(m) __attribute__ ((__aligned__(m))) |
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| 59 | |
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| 60 | /* __NO_INLINE__: some gcc's do not honor inlining! :( */ |
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| 61 | #if __GNUC_PREREQ(3,0) && !defined(__NO_INLINE__) |
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| 62 | # define ALWAYS_INLINE __attribute__ ((always_inline)) inline |
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| 63 | /* I've seen a toolchain where I needed __noinline__ instead of noinline */ |
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| 64 | # define NOINLINE __attribute__((__noinline__)) |
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| 65 | # if !ENABLE_WERROR |
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| 66 | # define DEPRECATED __attribute__ ((__deprecated__)) |
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| 67 | # define UNUSED_PARAM_RESULT __attribute__ ((warn_unused_result)) |
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| 68 | # else |
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| 69 | # define DEPRECATED |
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| 70 | # define UNUSED_PARAM_RESULT |
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| 71 | # endif |
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| 72 | #else |
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| 73 | # define ALWAYS_INLINE inline |
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| 74 | # define NOINLINE |
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| 75 | # define DEPRECATED |
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| 76 | # define UNUSED_PARAM_RESULT |
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| 77 | #endif |
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| 78 | |
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| 79 | /* -fwhole-program makes all symbols local. The attribute externally_visible |
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| 80 | * forces a symbol global. */ |
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| 81 | #if __GNUC_PREREQ(4,1) |
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| 82 | # define EXTERNALLY_VISIBLE __attribute__(( visibility("default") )) |
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| 83 | //__attribute__ ((__externally_visible__)) |
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| 84 | #else |
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| 85 | # define EXTERNALLY_VISIBLE |
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| 86 | #endif |
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| 87 | |
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| 88 | /* At 4.4 gcc become much more anal about this, need to use "aliased" types */ |
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| 89 | #if __GNUC_PREREQ(4,4) |
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| 90 | # define FIX_ALIASING __attribute__((__may_alias__)) |
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| 91 | #else |
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| 92 | # define FIX_ALIASING |
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| 93 | #endif |
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| 94 | |
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| 95 | /* We use __extension__ in some places to suppress -pedantic warnings |
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| 96 | * about GCC extensions. This feature didn't work properly before |
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| 97 | * gcc 2.8. */ |
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| 98 | #if !__GNUC_PREREQ(2,8) |
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| 99 | # ifndef __extension__ |
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| 100 | # define __extension__ |
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| 101 | # endif |
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| 102 | #endif |
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| 103 | |
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| 104 | /* FAST_FUNC is a qualifier which (possibly) makes function call faster |
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| 105 | * and/or smaller by using modified ABI. It is usually only needed |
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| 106 | * on non-static, busybox internal functions. Recent versions of gcc |
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| 107 | * optimize statics automatically. FAST_FUNC on static is required |
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| 108 | * only if you need to match a function pointer's type */ |
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| 109 | #if __GNUC_PREREQ(3,0) && defined(i386) /* || defined(__x86_64__)? */ |
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| 110 | /* stdcall makes callee to pop arguments from stack, not caller */ |
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| 111 | # define FAST_FUNC __attribute__((regparm(3),stdcall)) |
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| 112 | /* #elif ... - add your favorite arch today! */ |
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| 113 | #else |
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| 114 | # define FAST_FUNC |
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| 115 | #endif |
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| 116 | |
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| 117 | /* Make all declarations hidden (-fvisibility flag only affects definitions) */ |
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| 118 | /* (don't include system headers after this until corresponding pop!) */ |
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| 119 | #if __GNUC_PREREQ(4,1) && !defined(__CYGWIN__) |
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| 120 | # define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN _Pragma("GCC visibility push(hidden)") |
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| 121 | # define POP_SAVED_FUNCTION_VISIBILITY _Pragma("GCC visibility pop") |
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| 122 | #else |
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| 123 | # define PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
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| 124 | # define POP_SAVED_FUNCTION_VISIBILITY |
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| 125 | #endif |
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| 126 | |
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| 127 | /* gcc-2.95 had no va_copy but only __va_copy. */ |
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| 128 | #if !__GNUC_PREREQ(3,0) |
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| 129 | # include <stdarg.h> |
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| 130 | # if !defined va_copy && defined __va_copy |
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| 131 | # define va_copy(d,s) __va_copy((d),(s)) |
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| 132 | # endif |
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| 133 | #endif |
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| 134 | |
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| 135 | |
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| 136 | /* ---- Endian Detection ------------------------------------ */ |
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| 137 | |
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| 138 | #include <limits.h> |
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| 139 | #if defined(__digital__) && defined(__unix__) |
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| 140 | # include <sex.h> |
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| 141 | #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) \ |
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| 142 | || defined(__APPLE__) |
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| 143 | # include <sys/resource.h> /* rlimit */ |
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| 144 | # include <machine/endian.h> |
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| 145 | # define bswap_64 __bswap64 |
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| 146 | # define bswap_32 __bswap32 |
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| 147 | # define bswap_16 __bswap16 |
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| 148 | #else |
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| 149 | # include <byteswap.h> |
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| 150 | # include <endian.h> |
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| 151 | #endif |
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| 152 | |
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| 153 | #if defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN |
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| 154 | # define BB_BIG_ENDIAN 1 |
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| 155 | # define BB_LITTLE_ENDIAN 0 |
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| 156 | #elif defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN |
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| 157 | # define BB_BIG_ENDIAN 0 |
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| 158 | # define BB_LITTLE_ENDIAN 1 |
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| 159 | #elif defined(_BYTE_ORDER) && _BYTE_ORDER == _BIG_ENDIAN |
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| 160 | # define BB_BIG_ENDIAN 1 |
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| 161 | # define BB_LITTLE_ENDIAN 0 |
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| 162 | #elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN |
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| 163 | # define BB_BIG_ENDIAN 0 |
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| 164 | # define BB_LITTLE_ENDIAN 1 |
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| 165 | #elif defined(BYTE_ORDER) && BYTE_ORDER == BIG_ENDIAN |
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| 166 | # define BB_BIG_ENDIAN 1 |
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| 167 | # define BB_LITTLE_ENDIAN 0 |
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| 168 | #elif defined(BYTE_ORDER) && BYTE_ORDER == LITTLE_ENDIAN |
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| 169 | # define BB_BIG_ENDIAN 0 |
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| 170 | # define BB_LITTLE_ENDIAN 1 |
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| 171 | #elif defined(__386__) |
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| 172 | # define BB_BIG_ENDIAN 0 |
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| 173 | # define BB_LITTLE_ENDIAN 1 |
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| 174 | #else |
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| 175 | # error "Can't determine endianness" |
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| 176 | #endif |
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| 177 | |
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| 178 | #if ULONG_MAX > 0xffffffff |
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| 179 | # define bb_bswap_64(x) bswap_64(x) |
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| 180 | #endif |
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| 181 | |
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| 182 | /* SWAP_LEnn means "convert CPU<->little_endian by swapping bytes" */ |
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| 183 | #if BB_BIG_ENDIAN |
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| 184 | # define SWAP_BE16(x) (x) |
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| 185 | # define SWAP_BE32(x) (x) |
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| 186 | # define SWAP_BE64(x) (x) |
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| 187 | # define SWAP_LE16(x) bswap_16(x) |
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| 188 | # define SWAP_LE32(x) bswap_32(x) |
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| 189 | # define SWAP_LE64(x) bb_bswap_64(x) |
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| 190 | # define IF_BIG_ENDIAN(...) __VA_ARGS__ |
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| 191 | # define IF_LITTLE_ENDIAN(...) |
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| 192 | #else |
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| 193 | # define SWAP_BE16(x) bswap_16(x) |
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| 194 | # define SWAP_BE32(x) bswap_32(x) |
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| 195 | # define SWAP_BE64(x) bb_bswap_64(x) |
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| 196 | # define SWAP_LE16(x) (x) |
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| 197 | # define SWAP_LE32(x) (x) |
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| 198 | # define SWAP_LE64(x) (x) |
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| 199 | # define IF_BIG_ENDIAN(...) |
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| 200 | # define IF_LITTLE_ENDIAN(...) __VA_ARGS__ |
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| 201 | #endif |
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| 202 | |
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| 203 | |
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| 204 | /* ---- Unaligned access ------------------------------------ */ |
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| 205 | |
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| 206 | #include <stdint.h> |
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| 207 | typedef int bb__aliased_int FIX_ALIASING; |
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| 208 | typedef uint16_t bb__aliased_uint16_t FIX_ALIASING; |
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| 209 | typedef uint32_t bb__aliased_uint32_t FIX_ALIASING; |
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| 210 | |
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| 211 | /* NB: unaligned parameter should be a pointer, aligned one - |
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| 212 | * a lvalue. This makes it more likely to not swap them by mistake |
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| 213 | */ |
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| 214 | #if defined(i386) || defined(__x86_64__) || defined(__powerpc__) |
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| 215 | # define move_from_unaligned_int(v, intp) ((v) = *(bb__aliased_int*)(intp)) |
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| 216 | # define move_from_unaligned16(v, u16p) ((v) = *(bb__aliased_uint16_t*)(u16p)) |
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| 217 | # define move_from_unaligned32(v, u32p) ((v) = *(bb__aliased_uint32_t*)(u32p)) |
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| 218 | # define move_to_unaligned16(u16p, v) (*(bb__aliased_uint16_t*)(u16p) = (v)) |
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| 219 | # define move_to_unaligned32(u32p, v) (*(bb__aliased_uint32_t*)(u32p) = (v)) |
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| 220 | /* #elif ... - add your favorite arch today! */ |
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| 221 | #else |
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| 222 | /* performs reasonably well (gcc usually inlines memcpy here) */ |
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| 223 | # define move_from_unaligned_int(v, intp) (memcpy(&(v), (intp), sizeof(int))) |
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| 224 | # define move_from_unaligned16(v, u16p) (memcpy(&(v), (u16p), 2)) |
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| 225 | # define move_from_unaligned32(v, u32p) (memcpy(&(v), (u32p), 4)) |
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| 226 | # define move_to_unaligned16(u16p, v) do { \ |
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| 227 | uint16_t __t = (v); \ |
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| 228 | memcpy((u16p), &__t, 4); \ |
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| 229 | } while (0) |
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| 230 | # define move_to_unaligned32(u32p, v) do { \ |
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| 231 | uint32_t __t = (v); \ |
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| 232 | memcpy((u32p), &__t, 4); \ |
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| 233 | } while (0) |
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| 234 | #endif |
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| 235 | |
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| 236 | |
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| 237 | /* ---- Size-saving "small" ints (arch-dependent) ----------- */ |
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| 238 | |
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| 239 | #if defined(i386) || defined(__x86_64__) || defined(__mips__) || defined(__cris__) |
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| 240 | /* add other arches which benefit from this... */ |
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| 241 | typedef signed char smallint; |
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| 242 | typedef unsigned char smalluint; |
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| 243 | #else |
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| 244 | /* for arches where byte accesses generate larger code: */ |
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| 245 | typedef int smallint; |
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| 246 | typedef unsigned smalluint; |
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| 247 | #endif |
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| 248 | |
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| 249 | /* ISO C Standard: 7.16 Boolean type and values <stdbool.h> */ |
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| 250 | #if (defined __digital__ && defined __unix__) |
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| 251 | /* old system without (proper) C99 support */ |
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| 252 | # define bool smalluint |
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| 253 | #else |
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| 254 | /* modern system, so use it */ |
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| 255 | # include <stdbool.h> |
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| 256 | #endif |
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| 257 | |
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| 258 | |
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| 259 | /*----- Kernel versioning ------------------------------------*/ |
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| 260 | |
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| 261 | #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) |
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| 262 | |
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| 263 | |
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| 264 | /* ---- Miscellaneous --------------------------------------- */ |
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| 265 | |
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| 266 | #if defined __GLIBC__ \ |
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| 267 | || defined __UCLIBC__ \ |
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| 268 | || defined __dietlibc__ \ |
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| 269 | || defined __BIONIC__ \ |
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| 270 | || defined _NEWLIB_VERSION |
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| 271 | # include <features.h> |
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| 272 | #endif |
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| 273 | |
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| 274 | /* Define bb_setpgrp */ |
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| 275 | #if defined(__digital__) && defined(__unix__) |
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| 276 | /* use legacy setpgrp(pid_t, pid_t) for now. move to platform.c */ |
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| 277 | # define bb_setpgrp() do { pid_t __me = getpid(); setpgrp(__me, __me); } while (0) |
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| 278 | #else |
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| 279 | # define bb_setpgrp() setpgrp() |
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| 280 | #endif |
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| 281 | |
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| 282 | /* fdprintf is more readable, we used it before dprintf was standardized */ |
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| 283 | #include <unistd.h> |
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| 284 | #define fdprintf dprintf |
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| 285 | |
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| 286 | /* Useful for defeating gcc's alignment of "char message[]"-like data */ |
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| 287 | #if 1 /* if needed: !defined(arch1) && !defined(arch2) */ |
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| 288 | # define ALIGN1 __attribute__((aligned(1))) |
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| 289 | # define ALIGN2 __attribute__((aligned(2))) |
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| 290 | # define ALIGN4 __attribute__((aligned(4))) |
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| 291 | #else |
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| 292 | /* Arches which MUST have 2 or 4 byte alignment for everything are here */ |
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| 293 | # define ALIGN1 |
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| 294 | # define ALIGN2 |
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| 295 | # define ALIGN4 |
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| 296 | #endif |
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| 297 | |
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| 298 | /* |
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| 299 | * For 0.9.29 and svn, __ARCH_USE_MMU__ indicates no-mmu reliably. |
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| 300 | * For earlier versions there is no reliable way to check if we are building |
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| 301 | * for a mmu-less system. |
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| 302 | */ |
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| 303 | #if ENABLE_NOMMU || \ |
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| 304 | (defined __UCLIBC__ && __UCLIBC_MAJOR__ >= 0 && __UCLIBC_MINOR__ >= 9 && \ |
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| 305 | __UCLIBC_SUBLEVEL__ > 28 && !defined __ARCH_USE_MMU__) |
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| 306 | # define BB_MMU 0 |
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| 307 | # define USE_FOR_NOMMU(...) __VA_ARGS__ |
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| 308 | # define USE_FOR_MMU(...) |
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| 309 | #else |
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| 310 | # define BB_MMU 1 |
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| 311 | # define USE_FOR_NOMMU(...) |
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| 312 | # define USE_FOR_MMU(...) __VA_ARGS__ |
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| 313 | #endif |
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| 314 | |
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| 315 | #if defined(__digital__) && defined(__unix__) |
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| 316 | # include <standards.h> |
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| 317 | # include <inttypes.h> |
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| 318 | # define PRIu32 "u" |
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| 319 | # if !defined ADJ_OFFSET_SINGLESHOT && defined MOD_CLKA && defined MOD_OFFSET |
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| 320 | # define ADJ_OFFSET_SINGLESHOT (MOD_CLKA | MOD_OFFSET) |
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| 321 | # endif |
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| 322 | # if !defined ADJ_FREQUENCY && defined MOD_FREQUENCY |
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| 323 | # define ADJ_FREQUENCY MOD_FREQUENCY |
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| 324 | # endif |
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| 325 | # if !defined ADJ_TIMECONST && defined MOD_TIMECONST |
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| 326 | # define ADJ_TIMECONST MOD_TIMECONST |
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| 327 | # endif |
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| 328 | # if !defined ADJ_TICK && defined MOD_CLKB |
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| 329 | # define ADJ_TICK MOD_CLKB |
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| 330 | # endif |
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| 331 | #endif |
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| 332 | |
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| 333 | #if defined(__CYGWIN__) |
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| 334 | # define MAXSYMLINKS SYMLOOP_MAX |
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| 335 | #endif |
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| 336 | |
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| 337 | |
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| 338 | /* ---- Who misses what? ------------------------------------ */ |
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| 339 | |
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| 340 | /* Assume all these functions and header files exist by default. |
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| 341 | * Platforms where it is not true will #undef them below. |
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| 342 | */ |
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| 343 | #define HAVE_CLEARENV 1 |
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| 344 | #define HAVE_FDATASYNC 1 |
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| 345 | #define HAVE_DPRINTF 1 |
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| 346 | #define HAVE_MEMRCHR 1 |
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| 347 | #define HAVE_MKDTEMP 1 |
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| 348 | #define HAVE_PTSNAME_R 1 |
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| 349 | #define HAVE_SETBIT 1 |
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| 350 | #define HAVE_SIGHANDLER_T 1 |
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| 351 | #define HAVE_STPCPY 1 |
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| 352 | #define HAVE_STRCASESTR 1 |
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| 353 | #define HAVE_STRCHRNUL 1 |
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| 354 | #define HAVE_STRSEP 1 |
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| 355 | #define HAVE_STRSIGNAL 1 |
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| 356 | #define HAVE_STRVERSCMP 1 |
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| 357 | #define HAVE_VASPRINTF 1 |
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| 358 | #define HAVE_UNLOCKED_STDIO 1 |
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| 359 | #define HAVE_UNLOCKED_LINE_OPS 1 |
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| 360 | #define HAVE_GETLINE 1 |
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| 361 | #define HAVE_XTABS 1 |
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| 362 | #define HAVE_MNTENT_H 1 |
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| 363 | #define HAVE_NET_ETHERNET_H 1 |
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| 364 | #define HAVE_SYS_STATFS_H 1 |
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| 365 | |
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| 366 | #if defined(__UCLIBC_MAJOR__) |
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| 367 | # if __UCLIBC_MAJOR__ == 0 \ |
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| 368 | && ( __UCLIBC_MINOR__ < 9 \ |
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| 369 | || (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ < 31) \ |
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| 370 | ) |
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| 371 | # undef HAVE_STRVERSCMP |
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| 372 | # endif |
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| 373 | #endif |
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| 374 | |
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| 375 | #if defined(__dietlibc__) |
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| 376 | # undef HAVE_STRCHRNUL |
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| 377 | #endif |
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| 378 | |
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| 379 | #if defined(__WATCOMC__) |
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| 380 | # undef HAVE_DPRINTF |
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| 381 | # undef HAVE_GETLINE |
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| 382 | # undef HAVE_MEMRCHR |
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| 383 | # undef HAVE_MKDTEMP |
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| 384 | # undef HAVE_SETBIT |
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| 385 | # undef HAVE_STPCPY |
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| 386 | # undef HAVE_STRCASESTR |
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| 387 | # undef HAVE_STRCHRNUL |
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| 388 | # undef HAVE_STRSEP |
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| 389 | # undef HAVE_STRSIGNAL |
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| 390 | # undef HAVE_STRVERSCMP |
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| 391 | # undef HAVE_VASPRINTF |
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| 392 | # undef HAVE_UNLOCKED_STDIO |
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| 393 | # undef HAVE_UNLOCKED_LINE_OPS |
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| 394 | # undef HAVE_NET_ETHERNET_H |
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| 395 | #endif |
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| 396 | |
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| 397 | #if defined(__CYGWIN__) |
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| 398 | # undef HAVE_CLEARENV |
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| 399 | # undef HAVE_FDPRINTF |
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| 400 | # undef HAVE_MEMRCHR |
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| 401 | # undef HAVE_PTSNAME_R |
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| 402 | # undef HAVE_STRVERSCMP |
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| 403 | # undef HAVE_UNLOCKED_LINE_OPS |
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| 404 | #endif |
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| 405 | |
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| 406 | /* These BSD-derived OSes share many similarities */ |
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| 407 | #if (defined __digital__ && defined __unix__) \ |
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| 408 | || defined __APPLE__ \ |
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| 409 | || defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__ |
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| 410 | # undef HAVE_CLEARENV |
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| 411 | # undef HAVE_FDATASYNC |
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| 412 | # undef HAVE_GETLINE |
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| 413 | # undef HAVE_MNTENT_H |
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| 414 | # undef HAVE_PTSNAME_R |
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| 415 | # undef HAVE_SYS_STATFS_H |
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| 416 | # undef HAVE_SIGHANDLER_T |
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| 417 | # undef HAVE_STRVERSCMP |
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| 418 | # undef HAVE_XTABS |
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| 419 | # undef HAVE_DPRINTF |
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| 420 | # undef HAVE_UNLOCKED_STDIO |
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| 421 | # undef HAVE_UNLOCKED_LINE_OPS |
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| 422 | #endif |
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| 423 | |
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| 424 | #if defined(__FreeBSD__) |
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| 425 | # undef HAVE_STRCHRNUL |
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| 426 | #endif |
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| 427 | |
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| 428 | #if defined(__NetBSD__) |
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| 429 | # define HAVE_GETLINE 1 /* Recent NetBSD versions have getline() */ |
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| 430 | #endif |
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| 431 | |
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| 432 | #if defined(__digital__) && defined(__unix__) |
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| 433 | # undef HAVE_STPCPY |
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| 434 | #endif |
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| 435 | |
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| 436 | #if defined(ANDROID) || defined(__ANDROID__) |
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| 437 | # undef HAVE_DPRINTF |
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| 438 | # undef HAVE_GETLINE |
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| 439 | # undef HAVE_STPCPY |
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| 440 | # undef HAVE_STRCHRNUL |
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| 441 | # undef HAVE_STRVERSCMP |
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| 442 | # undef HAVE_UNLOCKED_LINE_OPS |
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| 443 | # undef HAVE_NET_ETHERNET_H |
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| 444 | #endif |
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| 445 | |
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| 446 | /* |
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| 447 | * Now, define prototypes for all the functions defined in platform.c |
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| 448 | * These must come after all the HAVE_* macros are defined (or not) |
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| 449 | */ |
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| 450 | |
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| 451 | #ifndef HAVE_DPRINTF |
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| 452 | extern int dprintf(int fd, const char *format, ...); |
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| 453 | #endif |
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| 454 | |
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| 455 | #ifndef HAVE_MEMRCHR |
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| 456 | extern void *memrchr(const void *s, int c, size_t n) FAST_FUNC; |
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| 457 | #endif |
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| 458 | |
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| 459 | #ifndef HAVE_MKDTEMP |
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| 460 | extern char *mkdtemp(char *template) FAST_FUNC; |
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| 461 | #endif |
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| 462 | |
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| 463 | #ifndef HAVE_SETBIT |
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| 464 | # define setbit(a, b) ((a)[(b) >> 3] |= 1 << ((b) & 7)) |
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| 465 | # define clrbit(a, b) ((a)[(b) >> 3] &= ~(1 << ((b) & 7))) |
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| 466 | #endif |
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| 467 | |
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| 468 | #ifndef HAVE_SIGHANDLER_T |
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| 469 | typedef void (*sighandler_t)(int); |
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| 470 | #endif |
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| 471 | |
|---|
| 472 | #ifndef HAVE_STPCPY |
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| 473 | extern char *stpcpy(char *p, const char *to_add) FAST_FUNC; |
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| 474 | #endif |
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| 475 | |
|---|
| 476 | #ifndef HAVE_STRCASESTR |
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| 477 | extern char *strcasestr(const char *s, const char *pattern) FAST_FUNC; |
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| 478 | #endif |
|---|
| 479 | |
|---|
| 480 | #ifndef HAVE_STRCHRNUL |
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| 481 | extern char *strchrnul(const char *s, int c) FAST_FUNC; |
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| 482 | #endif |
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| 483 | |
|---|
| 484 | #ifndef HAVE_STRSEP |
|---|
| 485 | extern char *strsep(char **stringp, const char *delim) FAST_FUNC; |
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| 486 | #endif |
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| 487 | |
|---|
| 488 | #ifndef HAVE_STRSIGNAL |
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| 489 | /* Not exactly the same: instead of "Stopped" it shows "STOP" etc */ |
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| 490 | # define strsignal(sig) get_signame(sig) |
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| 491 | #endif |
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| 492 | |
|---|
| 493 | #ifndef HAVE_VASPRINTF |
|---|
| 494 | extern int vasprintf(char **string_ptr, const char *format, va_list p) FAST_FUNC; |
|---|
| 495 | #endif |
|---|
| 496 | |
|---|
| 497 | #ifndef HAVE_GETLINE |
|---|
| 498 | # include <stdio.h> /* for FILE */ |
|---|
| 499 | # include <sys/types.h> /* size_t */ |
|---|
| 500 | extern ssize_t getline(char **lineptr, size_t *n, FILE *stream) FAST_FUNC; |
|---|
| 501 | #endif |
|---|
| 502 | |
|---|
| 503 | #endif |
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