diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
commit | 73b16af8feec390afbabd9356d6e5e83c0390838 (patch) | |
tree | 3730020ba2f9caeb9d7815a975af51830b51ce11 /libbb/xatonum.c |
busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'libbb/xatonum.c')
-rw-r--r-- | libbb/xatonum.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/libbb/xatonum.c b/libbb/xatonum.c new file mode 100644 index 0000000..3cdf634 --- /dev/null +++ b/libbb/xatonum.c @@ -0,0 +1,70 @@ +/* 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 tarball for details. + */ + +#include "libbb.h" + +#define type long long +#define xstrtou(rest) xstrtoull##rest +#define xstrto(rest) xstrtoll##rest +#define xatou(rest) xatoull##rest +#define xato(rest) xatoll##rest +#define XSTR_UTYPE_MAX ULLONG_MAX +#define XSTR_TYPE_MAX LLONG_MAX +#define XSTR_TYPE_MIN LLONG_MIN +#define XSTR_STRTOU strtoull +#include "xatonum_template.c" + +#if ULONG_MAX != ULLONG_MAX +#define type long +#define xstrtou(rest) xstrtoul##rest +#define xstrto(rest) xstrtol##rest +#define xatou(rest) xatoul##rest +#define xato(rest) xatol##rest +#define XSTR_UTYPE_MAX ULONG_MAX +#define XSTR_TYPE_MAX LONG_MAX +#define XSTR_TYPE_MIN LONG_MIN +#define XSTR_STRTOU strtoul +#include "xatonum_template.c" +#endif + +#if UINT_MAX != ULONG_MAX +static ALWAYS_INLINE +unsigned bb_strtoui(const char *str, char **end, int b) +{ + unsigned long v = strtoul(str, end, b); + if (v > UINT_MAX) { + errno = ERANGE; + return UINT_MAX; + } + return v; +} +#define type int +#define xstrtou(rest) xstrtou##rest +#define xstrto(rest) xstrtoi##rest +#define xatou(rest) xatou##rest +#define xato(rest) xatoi##rest +#define XSTR_UTYPE_MAX UINT_MAX +#define XSTR_TYPE_MAX INT_MAX +#define XSTR_TYPE_MIN INT_MIN +/* libc has no strtoui, so we need to create/use our own */ +#define XSTR_STRTOU bb_strtoui +#include "xatonum_template.c" +#endif + +/* A few special cases */ + +int FAST_FUNC xatoi_u(const char *numstr) +{ + return xatou_range(numstr, 0, INT_MAX); +} + +uint16_t FAST_FUNC xatou16(const char *numstr) +{ + return xatou_range(numstr, 0, 0xffff); +} |