/* vi: set sw=4 ts=4: */ /* * ascii-to-numbers implementations for busybox * * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org> * * Licensed under GPLv2, see file LICENSE in this source tree. */ PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN /* Provides extern declarations of functions */ #define DECLARE_STR_CONV(type, T, UT) \ \ unsigned type xstrto##UT##_range_sfx(const char *str, int b, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \ unsigned type xstrto##UT##_range(const char *str, int b, unsigned type l, unsigned type u) FAST_FUNC; \ unsigned type xstrto##UT##_sfx(const char *str, int b, const struct suffix_mult *sfx) FAST_FUNC; \ unsigned type xstrto##UT(const char *str, int b) FAST_FUNC; \ unsigned type xato##UT##_range_sfx(const char *str, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \ unsigned type xato##UT##_range(const char *str, unsigned type l, unsigned type u) FAST_FUNC; \ unsigned type xato##UT##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \ unsigned type xato##UT(const char *str) FAST_FUNC; \ type xstrto##T##_range_sfx(const char *str, int b, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \ type xstrto##T##_range(const char *str, int b, type l, type u) FAST_FUNC; \ type xstrto##T(const char *str, int b) FAST_FUNC; \ type xato##T##_range_sfx(const char *str, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \ type xato##T##_range(const char *str, type l, type u) FAST_FUNC; \ type xato##T##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \ type xato##T(const char *str) FAST_FUNC; \ /* Unsigned long long functions always exist */ DECLARE_STR_CONV(long long, ll, ull) /* Provides inline definitions of functions */ /* (useful for mapping them to the type of the same width) */ #define DEFINE_EQUIV_STR_CONV(narrow, N, W, UN, UW) \ \ static ALWAYS_INLINE \ unsigned narrow xstrto##UN##_range_sfx(const char *str, int b, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \ { return xstrto##UW##_range_sfx(str, b, l, u, sfx); } \ static ALWAYS_INLINE \ unsigned narrow xstrto##UN##_range(const char *str, int b, unsigned narrow l, unsigned narrow u) \ { return xstrto##UW##_range(str, b, l, u); } \ static ALWAYS_INLINE \ unsigned narrow xstrto##UN##_sfx(const char *str, int b, const struct suffix_mult *sfx) \ { return xstrto##UW##_sfx(str, b, sfx); } \ static ALWAYS_INLINE \ unsigned narrow xstrto##UN(const char *str, int b) \ { return xstrto##UW(str, b); } \ static ALWAYS_INLINE \ unsigned narrow xato##UN##_range_sfx(const char *str, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \ { return xato##UW##_range_sfx(str, l, u, sfx); } \ static ALWAYS_INLINE \ unsigned narrow xato##UN##_range(const char *str, unsigned narrow l, unsigned narrow u) \ { return xato##UW##_range(str, l, u); } \ static ALWAYS_INLINE \ unsigned narrow xato##UN##_sfx(const char *str, const struct suffix_mult *sfx) \ { return xato##UW##_sfx(str, sfx); } \ static ALWAYS_INLINE \ unsigned narrow xato##UN(const char *str) \ { return xato##UW(str); } \ static ALWAYS_INLINE \ narrow xstrto##N##_range_sfx(const char *str, int b, narrow l, narrow u, const struct suffix_mult *sfx) \ { return xstrto##W##_range_sfx(str, b, l, u, sfx); } \ static ALWAYS_INLINE \ narrow xstrto##N##_range(const char *str, int b, narrow l, narrow u) \ { return xstrto##W##_range(str, b, l, u); } \ static ALWAYS_INLINE \ narrow xstrto##N(const char *str, int b) \ { return xstrto##W(str, b); } \ static ALWAYS_INLINE \ narrow xato##N##_range_sfx(const char *str, narrow l, narrow u, const struct suffix_mult *sfx) \ { return xato##W##_range_sfx(str, l, u, sfx); } \ static ALWAYS_INLINE \ narrow xato##N##_range(const char *str, narrow l, narrow u) \ { return xato##W##_range(str, l, u); } \ static ALWAYS_INLINE \ narrow xato##N##_sfx(const char *str, const struct suffix_mult *sfx) \ { return xato##W##_sfx(str, sfx); } \ static ALWAYS_INLINE \ narrow xato##N(const char *str) \ { return xato##W(str); } \ /* If long == long long, then just map them one-to-one */ #if ULONG_MAX == ULLONG_MAX DEFINE_EQUIV_STR_CONV(long, l, ll, ul, ull) #else /* Else provide extern defs */ DECLARE_STR_CONV(long, l, ul) #endif /* Same for int -> [long] long */ #if UINT_MAX == ULLONG_MAX DEFINE_EQUIV_STR_CONV(int, i, ll, u, ull) #elif UINT_MAX == ULONG_MAX DEFINE_EQUIV_STR_CONV(int, i, l, u, ul) #else DECLARE_STR_CONV(int, i, u) #endif /* Specialized */ uint32_t BUG_xatou32_unimplemented(void); static ALWAYS_INLINE uint32_t xatou32(const char *numstr) { if (UINT_MAX == 0xffffffff) return xatou(numstr); if (ULONG_MAX == 0xffffffff) return xatoul(numstr); return BUG_xatou32_unimplemented(); } /* Non-aborting kind of convertors: bb_strto[u][l]l */ /* On exit: errno = 0 only if there was non-empty, '\0' terminated value * errno = EINVAL if value was not '\0' terminated, but otherwise ok * Return value is still valid, caller should just check whether end[0] * is a valid terminating char for particular case. OTOH, if caller * requires '\0' terminated input, [s]he can just check errno == 0. * errno = ERANGE if value had alphanumeric terminating char ("1234abcg"). * errno = ERANGE if value is out of range, missing, etc. * errno = ERANGE if value had minus sign for strtouXX (even "-0" is not ok ) * return value is all-ones in this case. */ unsigned long long bb_strtoull(const char *arg, char **endp, int base) FAST_FUNC; long long bb_strtoll(const char *arg, char **endp, int base) FAST_FUNC; #if ULONG_MAX == ULLONG_MAX static ALWAYS_INLINE unsigned long bb_strtoul(const char *arg, char **endp, int base) { return bb_strtoull(arg, endp, base); } static ALWAYS_INLINE long bb_strtol(const char *arg, char **endp, int base) { return bb_strtoll(arg, endp, base); } #else unsigned long bb_strtoul(const char *arg, char **endp, int base) FAST_FUNC; long bb_strtol(const char *arg, char **endp, int base) FAST_FUNC; #endif #if UINT_MAX == ULLONG_MAX static ALWAYS_INLINE unsigned bb_strtou(const char *arg, char **endp, int base) { return bb_strtoull(arg, endp, base); } static ALWAYS_INLINE int bb_strtoi(const char *arg, char **endp, int base) { return bb_strtoll(arg, endp, base); } #elif UINT_MAX == ULONG_MAX static ALWAYS_INLINE unsigned bb_strtou(const char *arg, char **endp, int base) { return bb_strtoul(arg, endp, base); } static ALWAYS_INLINE int bb_strtoi(const char *arg, char **endp, int base) { return bb_strtol(arg, endp, base); } #else unsigned bb_strtou(const char *arg, char **endp, int base) FAST_FUNC; int bb_strtoi(const char *arg, char **endp, int base) FAST_FUNC; #endif uint32_t BUG_bb_strtou32_unimplemented(void); static ALWAYS_INLINE uint32_t bb_strtou32(const char *arg, char **endp, int base) { if (sizeof(uint32_t) == sizeof(unsigned)) return bb_strtou(arg, endp, base); if (sizeof(uint32_t) == sizeof(unsigned long)) return bb_strtoul(arg, endp, base); return BUG_bb_strtou32_unimplemented(); } static ALWAYS_INLINE int32_t bb_strtoi32(const char *arg, char **endp, int base) { if (sizeof(int32_t) == sizeof(int)) return bb_strtoi(arg, endp, base); if (sizeof(int32_t) == sizeof(long)) return bb_strtol(arg, endp, base); return BUG_bb_strtou32_unimplemented(); } /* Floating point */ double bb_strtod(const char *arg, char **endp) FAST_FUNC; POP_SAVED_FUNCTION_VISIBILITY