1/* vi: set sw=4 ts=4: */ 2/* 3 * ascii-to-numbers implementations for busybox 4 * 5 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> 6 * 7 * Licensed under GPLv2, see file LICENSE in this tarball for details. 8 */ 9 10/* Provides extern declarations of functions */ 11#define DECLARE_STR_CONV(type, T, UT) \ 12\ 13unsigned type xstrto##UT##_range_sfx(const char *str, int b, unsigned type l, unsigned type u, const struct suffix_mult *sfx); \ 14unsigned type xstrto##UT##_range(const char *str, int b, unsigned type l, unsigned type u); \ 15unsigned type xstrto##UT##_sfx(const char *str, int b, const struct suffix_mult *sfx); \ 16unsigned type xstrto##UT(const char *str, int b); \ 17unsigned type xato##UT##_range_sfx(const char *str, unsigned type l, unsigned type u, const struct suffix_mult *sfx); \ 18unsigned type xato##UT##_range(const char *str, unsigned type l, unsigned type u); \ 19unsigned type xato##UT##_sfx(const char *str, const struct suffix_mult *sfx); \ 20unsigned type xato##UT(const char *str); \ 21type xstrto##T##_range_sfx(const char *str, int b, type l, type u, const struct suffix_mult *sfx); \ 22type xstrto##T##_range(const char *str, int b, type l, type u); \ 23type xato##T##_range_sfx(const char *str, type l, type u, const struct suffix_mult *sfx); \ 24type xato##T##_range(const char *str, type l, type u); \ 25type xato##T##_sfx(const char *str, const struct suffix_mult *sfx); \ 26type xato##T(const char *str); \ 27 28/* Unsigned long long functions always exist */ 29DECLARE_STR_CONV(long long, ll, ull) 30 31 32/* Provides inline definitions of functions */ 33/* (useful for mapping them to the type of the same width) */ 34#define DEFINE_EQUIV_STR_CONV(narrow, N, W, UN, UW) \ 35\ 36static ALWAYS_INLINE \ 37unsigned narrow xstrto##UN##_range_sfx(const char *str, int b, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \ 38{ return xstrto##UW##_range_sfx(str, b, l, u, sfx); } \ 39static ALWAYS_INLINE \ 40unsigned narrow xstrto##UN##_range(const char *str, int b, unsigned narrow l, unsigned narrow u) \ 41{ return xstrto##UW##_range(str, b, l, u); } \ 42static ALWAYS_INLINE \ 43unsigned narrow xstrto##UN##_sfx(const char *str, int b, const struct suffix_mult *sfx) \ 44{ return xstrto##UW##_sfx(str, b, sfx); } \ 45static ALWAYS_INLINE \ 46unsigned narrow xstrto##UN(const char *str, int b) \ 47{ return xstrto##UW(str, b); } \ 48static ALWAYS_INLINE \ 49unsigned narrow xato##UN##_range_sfx(const char *str, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \ 50{ return xato##UW##_range_sfx(str, l, u, sfx); } \ 51static ALWAYS_INLINE \ 52unsigned narrow xato##UN##_range(const char *str, unsigned narrow l, unsigned narrow u) \ 53{ return xato##UW##_range(str, l, u); } \ 54static ALWAYS_INLINE \ 55unsigned narrow xato##UN##_sfx(const char *str, const struct suffix_mult *sfx) \ 56{ return xato##UW##_sfx(str, sfx); } \ 57static ALWAYS_INLINE \ 58unsigned narrow xato##UN(const char *str) \ 59{ return xato##UW(str); } \ 60static ALWAYS_INLINE \ 61narrow xstrto##N##_range_sfx(const char *str, int b, narrow l, narrow u, const struct suffix_mult *sfx) \ 62{ return xstrto##W##_range_sfx(str, b, l, u, sfx); } \ 63static ALWAYS_INLINE \ 64narrow xstrto##N##_range(const char *str, int b, narrow l, narrow u) \ 65{ return xstrto##W##_range(str, b, l, u); } \ 66static ALWAYS_INLINE \ 67narrow xato##N##_range_sfx(const char *str, narrow l, narrow u, const struct suffix_mult *sfx) \ 68{ return xato##W##_range_sfx(str, l, u, sfx); } \ 69static ALWAYS_INLINE \ 70narrow xato##N##_range(const char *str, narrow l, narrow u) \ 71{ return xato##W##_range(str, l, u); } \ 72static ALWAYS_INLINE \ 73narrow xato##N##_sfx(const char *str, const struct suffix_mult *sfx) \ 74{ return xato##W##_sfx(str, sfx); } \ 75static ALWAYS_INLINE \ 76narrow xato##N(const char *str) \ 77{ return xato##W(str); } \ 78 79/* If long == long long, then just map them one-to-one */ 80#if ULONG_MAX == ULLONG_MAX 81DEFINE_EQUIV_STR_CONV(long, l, ll, ul, ull) 82#else 83/* Else provide extern defs */ 84DECLARE_STR_CONV(long, l, ul) 85#endif 86 87/* Same for int -> [long] long */ 88#if UINT_MAX == ULLONG_MAX 89DEFINE_EQUIV_STR_CONV(int, i, ll, u, ull) 90#elif UINT_MAX == ULONG_MAX 91DEFINE_EQUIV_STR_CONV(int, i, l, u, ul) 92#else 93DECLARE_STR_CONV(int, i, u) 94#endif 95 96/* Specialized */ 97 98int BUG_xatou32_unimplemented(void); 99static ALWAYS_INLINE uint32_t xatou32(const char *numstr) 100{ 101 if (UINT_MAX == 0xffffffff) 102 return xatou(numstr); 103 if (ULONG_MAX == 0xffffffff) 104 return xatoul(numstr); 105 return BUG_xatou32_unimplemented(); 106} 107 108/* Non-aborting kind of convertors */ 109 110unsigned long long bb_strtoull(const char *arg, char **endp, int base); 111long long bb_strtoll(const char *arg, char **endp, int base); 112 113#if ULONG_MAX == ULLONG_MAX 114static ALWAYS_INLINE 115unsigned long bb_strtoul(const char *arg, char **endp, int base) 116{ return bb_strtoull(arg, endp, base); } 117static ALWAYS_INLINE 118long bb_strtol(const char *arg, char **endp, int base) 119{ return bb_strtoll(arg, endp, base); } 120#else 121unsigned long bb_strtoul(const char *arg, char **endp, int base); 122long bb_strtol(const char *arg, char **endp, int base); 123#endif 124 125#if UINT_MAX == ULLONG_MAX 126static ALWAYS_INLINE 127unsigned bb_strtou(const char *arg, char **endp, int base) 128{ return bb_strtoull(arg, endp, base); } 129static ALWAYS_INLINE 130int bb_strtoi(const char *arg, char **endp, int base) 131{ return bb_strtoll(arg, endp, base); } 132#elif UINT_MAX == ULONG_MAX 133static ALWAYS_INLINE 134unsigned bb_strtou(const char *arg, char **endp, int base) 135{ return bb_strtoul(arg, endp, base); } 136static ALWAYS_INLINE 137int bb_strtoi(const char *arg, char **endp, int base) 138{ return bb_strtol(arg, endp, base); } 139#else 140unsigned bb_strtou(const char *arg, char **endp, int base); 141int bb_strtoi(const char *arg, char **endp, int base); 142#endif 143 144int BUG_bb_strtou32_unimplemented(void); 145static ALWAYS_INLINE 146uint32_t bb_strtou32(const char *arg, char **endp, int base) 147{ 148 if (sizeof(uint32_t) == sizeof(unsigned)) 149 return bb_strtou(arg, endp, base); 150 if (sizeof(uint32_t) == sizeof(unsigned long)) 151 return bb_strtoul(arg, endp, base); 152 return BUG_bb_strtou32_unimplemented(); 153} 154 155/* Floating point */ 156 157/* double bb_strtod(const char *arg, char **endp); */ 158