1 /* 2 * Written by J.T. Conklin <jtc@NetBSD.org>. 3 * Public domain. 4 */ 5 6 #if 0 7 #if defined(LIBC_SCCS) && !defined(lint) 8 __RCSID("$NetBSD: l64a.c,v 1.13 2003/07/26 19:24:54 salo Exp $"); 9 #endif /* not lint */ 10 #endif 11 12 #include <sys/cdefs.h> 13 #include <stdint.h> 14 #include <stdlib.h> 15 16 char * 17 l64a(long value) 18 { 19 static char buf[7]; 20 21 (void)l64a_r(value, buf, sizeof(buf)); 22 return (buf); 23 } 24 25 int 26 l64a_r(long value, char *buffer, int buflen) 27 { 28 static const char chars[] = 29 "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; 30 uint32_t v; 31 32 v = value; 33 while (buflen-- > 0) { 34 if (v == 0) { 35 *buffer = '\0'; 36 return (0); 37 } 38 *buffer++ = chars[v & 0x3f]; 39 v >>= 6; 40 } 41 return (-1); 42 } 43