uuencode.c revision 98937
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#include "xmalloc.h" 27#include "uuencode.h" 28RCSID("$OpenBSD: uuencode.c,v 1.15 2002/03/04 17:27:39 stevesk Exp $"); 29 30int 31uuencode(u_char *src, u_int srclength, 32 char *target, size_t targsize) 33{ 34 return __b64_ntop(src, srclength, target, targsize); 35} 36 37int 38uudecode(const char *src, u_char *target, size_t targsize) 39{ 40 int len; 41 char *encoded, *p; 42 43 /* copy the 'readonly' source */ 44 encoded = xstrdup(src); 45 /* skip whitespace and data */ 46 for (p = encoded; *p == ' ' || *p == '\t'; p++) 47 ; 48 for (; *p != '\0' && *p != ' ' && *p != '\t'; p++) 49 ; 50 /* and remove trailing whitespace because __b64_pton needs this */ 51 *p = '\0'; 52 len = __b64_pton(encoded, target, targsize); 53 xfree(encoded); 54 return len; 55} 56 57void 58dump_base64(FILE *fp, u_char *data, u_int len) 59{ 60 u_char *buf = xmalloc(2*len); 61 int i, n; 62 63 n = uuencode(data, len, buf, 2*len); 64 for (i = 0; i < n; i++) { 65 fprintf(fp, "%c", buf[i]); 66 if (i % 70 == 69) 67 fprintf(fp, "\n"); 68 } 69 if (i % 70 != 69) 70 fprintf(fp, "\n"); 71 xfree(buf); 72} 73