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/*-
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#if 0
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: a64l.c,v 1.8 2000/01/22 22:19:19 mycroft Exp $");
#endif /* not lint */
#endif
#include <sys/cdefs.h>
#include <stdlib.h>
#include <inttypes.h>
#define ADOT 46 /* ASCII '.' */
#define ASLASH 47 /* ASCII '/' */
#define A0 48 /* ASCII '0' */
#define AA 65 /* ASCII 'A' */
#define Aa 97 /* ASCII 'a' */
long
a64l(const char *s)
{
long shift;
int digit, i, value;
value = 0;
shift = 0;
for (i = 0; *s != '\0' && i < 6; i++, s++) {
if (*s <= ASLASH)
digit = *s - ASLASH + 1;
else if (*s <= A0 + 9)
digit = *s - A0 + 2;
else if (*s <= AA + 25)
digit = *s - AA + 12;
else
digit = *s - Aa + 38;
value |= digit << shift;
shift += 6;
}
return (value);
}
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