95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/* $OpenBSD: uuencode.c,v 1.25 2009/03/05 11:30:50 djm Exp $ */
|
|
/*
|
|
* Copyright (c) 2000 Markus Friedl. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <netinet/in.h>
|
|
#include <resolv.h>
|
|
#include <stdio.h>
|
|
|
|
#include "xmalloc.h"
|
|
#include "uuencode.h"
|
|
|
|
/*
|
|
* Encode binary 'src' of length 'srclength', writing base64-encoded text
|
|
* to 'target' of size 'targsize'. Will always nul-terminate 'target'.
|
|
* Returns the number of bytes stored in 'target' or -1 on error (inc.
|
|
* 'targsize' too small).
|
|
*/
|
|
int
|
|
uuencode(const u_char *src, u_int srclength,
|
|
char *target, size_t targsize)
|
|
{
|
|
return __b64_ntop(src, srclength, target, targsize);
|
|
}
|
|
|
|
/*
|
|
* Decode base64-encoded 'src' into buffer 'target' of 'targsize' bytes.
|
|
* Will skip leading and trailing whitespace. Returns the number of bytes
|
|
* stored in 'target' or -1 on error (inc. targsize too small).
|
|
*/
|
|
int
|
|
uudecode(const char *src, u_char *target, size_t targsize)
|
|
{
|
|
int len;
|
|
char *encoded, *p;
|
|
|
|
/* copy the 'readonly' source */
|
|
encoded = xstrdup(src);
|
|
/* skip whitespace and data */
|
|
for (p = encoded; *p == ' ' || *p == '\t'; p++)
|
|
;
|
|
for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
|
|
;
|
|
/* and remove trailing whitespace because __b64_pton needs this */
|
|
*p = '\0';
|
|
len = __b64_pton(encoded, target, targsize);
|
|
xfree(encoded);
|
|
return len;
|
|
}
|
|
|
|
void
|
|
dump_base64(FILE *fp, u_char *data, u_int len)
|
|
{
|
|
char *buf;
|
|
int i, n;
|
|
|
|
if (len > 65536) {
|
|
fprintf(fp, "dump_base64: len > 65536\n");
|
|
return;
|
|
}
|
|
buf = xmalloc(2*len);
|
|
n = uuencode(data, len, buf, 2*len);
|
|
for (i = 0; i < n; i++) {
|
|
fprintf(fp, "%c", buf[i]);
|
|
if (i % 70 == 69)
|
|
fprintf(fp, "\n");
|
|
}
|
|
if (i % 70 != 69)
|
|
fprintf(fp, "\n");
|
|
xfree(buf);
|
|
}
|