1 /* 2 * Copyright (c) 2000 Markus Friedl. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "includes.h" 26 RCSID("$OpenBSD: uuencode.c,v 1.16 2002/09/09 14:54:15 markus Exp $"); 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 #include "xmalloc.h" 31 #include "uuencode.h" 32 33 int 34 uuencode(u_char *src, u_int srclength, 35 char *target, size_t targsize) 36 { 37 return __b64_ntop(src, srclength, target, targsize); 38 } 39 40 int 41 uudecode(const char *src, u_char *target, size_t targsize) 42 { 43 int len; 44 char *encoded, *p; 45 46 /* copy the 'readonly' source */ 47 encoded = xstrdup(src); 48 /* skip whitespace and data */ 49 for (p = encoded; *p == ' ' || *p == '\t'; p++) 50 ; 51 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++) 52 ; 53 /* and remove trailing whitespace because __b64_pton needs this */ 54 *p = '\0'; 55 len = __b64_pton((u_char *) encoded, target, targsize); 56 xfree(encoded); 57 return len; 58 } 59 60 void 61 dump_base64(FILE *fp, u_char *data, u_int len) 62 { 63 char *buf = xmalloc(2*len); 64 int i, n; 65 66 n = uuencode(data, len, buf, 2*len); 67 for (i = 0; i < n; i++) { 68 fprintf(fp, "%c", buf[i]); 69 if (i % 70 == 69) 70 fprintf(fp, "\n"); 71 } 72 if (i % 70 != 69) 73 fprintf(fp, "\n"); 74 xfree(buf); 75 } 76