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 source tree.
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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 FAST_FUNC xatoi_positive(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 FAST_FUNC 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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