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/* uuencode.c -- uuencode utility.
* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
*
* This product is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This product is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this product; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Original copyright notice is retained at the end of this file.
*/
/* Reworked to GNU style by Ian Lance Taylor, ian@airs.com, August 93. */
/* Hacked to work with BusyBox by Alfred M. Szmidt */
#include "busybox.h"
#include <stdio.h>
#include <errno.h>
#include <getopt.h>
#include <pwd.h>
#define RW (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
static void encode __P ((void));
/* Pointer to the translation table we currently use. */
const char *trans_ptr;
/* The two currently defined translation tables. The first is the
standard uuencoding, the second is base64 encoding. */
const char uu_std[64] = {
'`', '!', '"', '#', '$', '%', '&', '\'',
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', ':', ';', '<', '=', '>', '?',
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '[', '\\', ']', '^', '_'
};
const char uu_base64[64] = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3',
'4', '5', '6', '7', '8', '9', '+', '/'
};
/* ENC is the basic 1 character encoding function to make a char printing. */
#define ENC(Char) (trans_ptr[(Char) & 077])
/* Copy from IN to OUT, encoding as you go along. */
static void encode()
{
register int ch, n;
char *p = NULL;
char buf[80];
while (1) {
n = 0;
do {
register int m = fread (buf, 1, 45 - n, stdin);
if (m == 0)
break;
n += m;
}
while (n < 45);
if (n == 0)
break;
if (trans_ptr == uu_std)
if (putchar (ENC (n)) == EOF)
break;
for (p = buf; n > 2; n -= 3, p += 3) {
ch = *p >> 2;
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017);
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03);
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
ch = p[2] & 077;
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
}
if (n != 0)
break;
if (putchar ('\n') == EOF)
break;
}
while (n != 0) {
char c1 = *p;
char c2 = n == 1 ? 0 : p[1];
ch = c1 >> 2;
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
ch = ((c1 << 4) & 060) | ((c2 >> 4) & 017);
ch = ENC (ch);
if (putchar (ch) == EOF)
break;
if (n == 1)
ch = trans_ptr == uu_std ? ENC ('\0') : '=';
else {
ch = (c2 << 2) & 074;
ch = ENC (ch);
}
if (putchar (ch) == EOF)
break;
ch = trans_ptr == uu_std ? ENC ('\0') : '=';
if (putchar (ch) == EOF)
break;
putchar ('\n');
break;
}
if (ferror (stdin))
error_msg("Read error\n");
if (trans_ptr == uu_std) {
putchar (ENC ('\0'));
putchar ('\n');
}
}
int uuencode_main (int argc,
char **argv)
{
int opt;
struct stat sb;
int mode;
trans_ptr = uu_std; /* Standard encoding is old uu format */
/* Parse any options */
while ((opt = getopt (argc, argv, "m")) != EOF) {
switch (opt) {
case 'm':
trans_ptr = uu_base64;
break;
case 0:
break;
default:
usage(uuencode_usage);
}
}
switch (argc - optind) {
case 2:
/* Optional first argument is input file. */
if (!freopen (argv[optind], "r", stdin) || fstat (fileno (stdin), &sb)) {
error_msg("%s: %s\n", argv[optind], strerror(errno));
return EXIT_FAILURE;
}
mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
optind++;
break;
case 1:
mode = RW & ~umask (RW);
break;
case 0:
default:
usage(uuencode_usage);
}
printf("begin%s %o %s\n", trans_ptr == uu_std ? "" : "-base64",
mode, argv[optind]);
encode();
printf(trans_ptr == uu_std ? "end\n" : "====\n");
if (ferror (stdout)) {
error_msg("Write error\n");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
/* Copyright (c) 1983 Regents of the University of California.
* 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.
*
* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
*
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
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