53 lines
960 B
C
53 lines
960 B
C
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/*
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* Written by J.T. Conklin <jtc@NetBSD.org>.
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* Public domain.
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*/
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#if 0
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: l64a.c,v 1.13 2003/07/26 19:24:54 salo Exp $");
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdlib.h>
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#define ADOT 46 /* ASCII '.' */
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#define ASLASH ADOT + 1 /* ASCII '/' */
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#define A0 48 /* ASCII '0' */
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#define AA 65 /* ASCII 'A' */
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#define Aa 97 /* ASCII 'a' */
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char *
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l64a(long value)
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{
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static char buf[8];
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(void)l64a_r(value, buf, sizeof(buf));
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return (buf);
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}
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int
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l64a_r(long value, char *buffer, int buflen)
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{
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long v;
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int digit;
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v = value & (long)0xffffffff;
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for (; v != 0 && buflen > 1; buffer++, buflen--) {
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digit = v & 0x3f;
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if (digit < 2)
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*buffer = digit + ADOT;
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else if (digit < 12)
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*buffer = digit + A0 - 2;
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else if (digit < 38)
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*buffer = digit + AA - 12;
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else
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*buffer = digit + Aa - 38;
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v >>= 6;
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}
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return (v == 0 ? 0 : -1);
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}
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