1 /* btoa8.c: The opiebtoa8() library function. 2 3 %%% copyright-cmetz-96 4 This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved. 5 The Inner Net License Version 3 applies to this software. 6 You should have received a copy of the license with this software. If 7 you didn't get a copy, you may request one from <license@inner.net>. 8 9 History: 10 11 Modified by cmetz for OPIE 2.4. Use struct opie_otpkey for binary arg. 12 Created by cmetz for OPIE 2.3 (quick re-write). 13 */ 14 15 #include "opie_cfg.h" 16 #include "opie.h" 17 18 static char hextochar[16] = 19 {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; 20 21 char *opiebtoa8 FUNCTION((out, in), char *out AND struct opie_otpkey *inkey) 22 { 23 int i; 24 unsigned char *in = (unsigned char *)inkey; 25 char *c = out; 26 27 for (i = 0; i < 8; i++) { 28 *(c++) = hextochar[((*in) >> 4) & 0x0f]; 29 *(c++) = hextochar[(*in++) & 0x0f]; 30 } 31 *c = 0; 32 33 return out; 34 } 35