diff options
Diffstat (limited to 'lib/libc/stdlib/l64a.c')
| -rw-r--r-- | lib/libc/stdlib/l64a.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/lib/libc/stdlib/l64a.c b/lib/libc/stdlib/l64a.c index bc10553..c281d7d 100644 --- a/lib/libc/stdlib/l64a.c +++ b/lib/libc/stdlib/l64a.c @@ -12,18 +12,13 @@ __RCSID("$NetBSD: l64a.c,v 1.13 2003/07/26 19:24:54 salo Exp $"); #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <stdint.h> #include <stdlib.h> -#define ADOT 46 /* ASCII '.' */ -#define ASLASH ADOT + 1 /* ASCII '/' */ -#define A0 48 /* ASCII '0' */ -#define AA 65 /* ASCII 'A' */ -#define Aa 97 /* ASCII 'a' */ - char * l64a(long value) { - static char buf[8]; + static char buf[7]; (void)l64a_r(value, buf, sizeof(buf)); return (buf); @@ -32,21 +27,18 @@ l64a(long value) int l64a_r(long value, char *buffer, int buflen) { - long v; - int digit; - - v = value & (long)0xffffffff; - for (; v != 0 && buflen > 1; buffer++, buflen--) { - digit = v & 0x3f; - if (digit < 2) - *buffer = digit + ADOT; - else if (digit < 12) - *buffer = digit + A0 - 2; - else if (digit < 38) - *buffer = digit + AA - 12; - else - *buffer = digit + Aa - 38; + static const char chars[] = + "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; + uint32_t v; + + v = value; + while (buflen-- > 0) { + if (v == 0) { + *buffer = '\0'; + return (0); + } + *buffer++ = chars[v & 0x3f]; v >>= 6; } - return (v == 0 ? 0 : -1); + return (-1); } |
