| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * ascii-to-numbers implementations for busybox
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| 4 | *
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| 5 | * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
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| 6 | *
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| 7 | * Licensed under GPLv2, see file LICENSE in this tarball for details.
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| 8 | */
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| 9 |
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| 10 | #include "libbb.h"
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| 11 |
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| 12 | #define type long long
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| 13 | #define xstrtou(rest) xstrtoull##rest
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| 14 | #define xstrto(rest) xstrtoll##rest
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| 15 | #define xatou(rest) xatoull##rest
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| 16 | #define xato(rest) xatoll##rest
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| 17 | #define XSTR_UTYPE_MAX ULLONG_MAX
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| 18 | #define XSTR_TYPE_MAX LLONG_MAX
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| 19 | #define XSTR_TYPE_MIN LLONG_MIN
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| 20 | #define XSTR_STRTOU strtoull
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| 21 | #include "xatonum_template.c"
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| 22 |
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| 23 | #if ULONG_MAX != ULLONG_MAX
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| 24 | #define type long
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| 25 | #define xstrtou(rest) xstrtoul##rest
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| 26 | #define xstrto(rest) xstrtol##rest
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| 27 | #define xatou(rest) xatoul##rest
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| 28 | #define xato(rest) xatol##rest
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| 29 | #define XSTR_UTYPE_MAX ULONG_MAX
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| 30 | #define XSTR_TYPE_MAX LONG_MAX
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| 31 | #define XSTR_TYPE_MIN LONG_MIN
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| 32 | #define XSTR_STRTOU strtoul
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| 33 | #include "xatonum_template.c"
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| 34 | #endif
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| 35 |
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| 36 | #if UINT_MAX != ULONG_MAX
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| 37 | static ALWAYS_INLINE
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| 38 | unsigned bb_strtoui(const char *str, char **end, int b)
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| 39 | {
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| 40 | unsigned long v = strtoul(str, end, b);
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| 41 | if (v > UINT_MAX) {
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| 42 | errno = ERANGE;
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| 43 | return UINT_MAX;
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| 44 | }
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| 45 | return v;
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| 46 | }
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| 47 | #define type int
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| 48 | #define xstrtou(rest) xstrtou##rest
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| 49 | #define xstrto(rest) xstrtoi##rest
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| 50 | #define xatou(rest) xatou##rest
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| 51 | #define xato(rest) xatoi##rest
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| 52 | #define XSTR_UTYPE_MAX UINT_MAX
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| 53 | #define XSTR_TYPE_MAX INT_MAX
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| 54 | #define XSTR_TYPE_MIN INT_MIN
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| 55 | /* libc has no strtoui, so we need to create/use our own */
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| 56 | #define XSTR_STRTOU bb_strtoui
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| 57 | #include "xatonum_template.c"
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| 58 | #endif
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| 59 |
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| 60 | /* A few special cases */
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| 61 |
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| 62 | int xatoi_u(const char *numstr)
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| 63 | {
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| 64 | return xatou_range(numstr, 0, INT_MAX);
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| 65 | }
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| 66 |
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| 67 | uint16_t xatou16(const char *numstr)
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| 68 | {
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| 69 | return xatou_range(numstr, 0, 0xffff);
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| 70 | }
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