Rewrite based on wget uuencode function.
Saves aprox. 200 Bytes and in future can use common code between this and wget if BB_FEATURE_WGET_AUTHENTICATION is defined.
This commit is contained in:
Glenn L McGrath
parent
220238305f
commit
089decab65
@ -1,237 +1,188 @@
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/* uuencode.c -- uuencode utility.
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* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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/* vi: set sw=4 ts=4: */
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/*
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* Copyright (C) 2000 by Glenn McGrath
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*
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* This product is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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* based on the function base64_encode from http.c in wget v1.6
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* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
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*
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* This product is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* You should have received a copy of the GNU General Public License
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* along with this product; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* Original copyright notice is retained at the end of this file.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* Reworked to GNU style by Ian Lance Taylor, ian@airs.com, August 93. */
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/* Hacked to work with BusyBox by Alfred M. Szmidt */
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#include <stdio.h>
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#include <errno.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "busybox.h"
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#define RW (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
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static void encode __P ((void));
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/* Pointer to the translation table we currently use. */
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static const char *trans_ptr;
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/* The two currently defined translation tables. The first is the
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standard uuencoding, the second is base64 encoding. */
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static const char uu_std[64] = {
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'`', '!', '"', '#', '$', '%', '&', '\'',
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'(', ')', '*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', ':', ';', '<', '=', '>', '?',
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'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', '[', '\\', ']', '^', '_'
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/* Conversion table. for base 64 */
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static char tbl_base64[64] = {
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
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'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
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'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
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'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
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'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
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'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
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'w', 'x', 'y', 'z', '0', '1', '2', '3',
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'4', '5', '6', '7', '8', '9', '+', '/'
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};
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static const char uu_base64[64] = {
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
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'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
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'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
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'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
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'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
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'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
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'w', 'x', 'y', 'z', '0', '1', '2', '3',
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'4', '5', '6', '7', '8', '9', '+', '/'
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static char tbl_std[64] = {
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'`', '!', '"', '#', '$', '%', '&', '\'',
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'(', ')', '*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7',
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'8', '9', ':', ';', '<', '=', '>', '?',
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'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', '[', '\\', ']', '^', '_'
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};
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/* ENC is the basic 1 character encoding function to make a char printing. */
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#define ENC(Char) (trans_ptr[(Char) & 077])
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/* Copy from IN to OUT, encoding as you go along. */
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static void encode()
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{
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register int ch, n;
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char *p = NULL;
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char buf[80];
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while (1) {
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n = 0;
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do {
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register int m = fread (buf, 1, 45 - n, stdin);
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if (m == 0)
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break;
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n += m;
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}
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while (n < 45);
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if (n == 0)
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break;
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if (trans_ptr == uu_std)
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if (putchar (ENC (n)) == EOF)
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break;
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for (p = buf; n > 2; n -= 3, p += 3) {
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ch = *p >> 2;
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017);
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03);
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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ch = p[2] & 077;
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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}
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if (n != 0)
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break;
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if (putchar ('\n') == EOF)
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break;
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}
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while (n != 0) {
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char c1 = *p;
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char c2 = n == 1 ? 0 : p[1];
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ch = c1 >> 2;
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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ch = ((c1 << 4) & 060) | ((c2 >> 4) & 017);
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ch = ENC (ch);
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if (putchar (ch) == EOF)
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break;
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if (n == 1)
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ch = trans_ptr == uu_std ? ENC ('\0') : '=';
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else {
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ch = (c2 << 2) & 074;
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ch = ENC (ch);
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}
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if (putchar (ch) == EOF)
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break;
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ch = trans_ptr == uu_std ? ENC ('\0') : '=';
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if (putchar (ch) == EOF)
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break;
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putchar ('\n');
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break;
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}
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if (ferror (stdin))
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error_msg("Read error");
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if (trans_ptr == uu_std) {
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putchar (ENC ('\0'));
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putchar ('\n');
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}
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}
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int uuencode_main (int argc,
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char **argv)
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{
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int opt;
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struct stat sb;
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int mode;
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trans_ptr = uu_std; /* Standard encoding is old uu format */
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/* Parse any options */
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while ((opt = getopt (argc, argv, "m")) > 0) {
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switch (opt) {
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case 'm':
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trans_ptr = uu_base64;
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break;
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default:
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show_usage();
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}
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}
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switch (argc - optind) {
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case 2:
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/* Optional first argument is input file. */
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if (!freopen (argv[optind], "r", stdin) || fstat (fileno (stdin), &sb)) {
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perror_msg("%s", argv[optind]);
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return EXIT_FAILURE;
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}
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mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
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optind++;
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break;
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case 1:
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mode = RW & ~umask (RW);
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break;
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case 0:
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default:
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show_usage();
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}
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printf("begin%s %o %s\n", trans_ptr == uu_std ? "" : "-base64",
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mode, argv[optind]);
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encode();
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printf(trans_ptr == uu_std ? "end\n" : "====\n");
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if (ferror (stdout)) {
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error_msg("Write error");
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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/* Copyright (c) 1983 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
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*
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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/*
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* Encode the string S of length LENGTH to base64 format and place it
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* to STORE. STORE will be 0-terminated, and must point to a writable
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* buffer of at least 1+BASE64_LENGTH(length) bytes.
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* where BASE64_LENGTH(len) = (4 * ((LENGTH + 2) / 3))
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*/
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static void base64_encode (const char *s, const char *store, const int length, const char *tbl)
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{
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int i;
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unsigned char *p = (unsigned char *)store;
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/* Transform the 3x8 bits to 4x6 bits, as required by base64. */
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for (i = 0; i < length; i += 3) {
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*p++ = tbl[s[0] >> 2];
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*p++ = tbl[((s[0] & 3) << 4) + (s[1] >> 4)];
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*p++ = tbl[((s[1] & 0xf) << 2) + (s[2] >> 6)];
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*p++ = tbl[s[2] & 0x3f];
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s += 3;
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}
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/* Pad the result if necessary... */
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if (i == length + 1) {
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*(p - 1) = '=';
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}
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else if (i == length + 2) {
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*(p - 1) = *(p - 2) = '=';
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}
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/* ...and zero-terminate it. */
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*p = '\0';
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}
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int uuencode_main(int argc, char **argv)
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{
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const int src_buf_size = BUFSIZ; // This *MUST* be a multiple of 3
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const int dst_buf_size = 4 * ((src_buf_size + 2) / 3);
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RESERVE_BB_BUFFER(src_buf, src_buf_size + 1);
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RESERVE_BB_BUFFER(dst_buf, dst_buf_size + 1);
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struct stat stat_buf;
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FILE *src_stream = stdin;
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char *tbl = tbl_std;
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size_t size;
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mode_t mode;
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int opt;
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int column = 0;
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int write_size;
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int remaining;
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int buffer_offset = 0;
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while ((opt = getopt(argc, argv, "m")) != -1) {
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switch (opt) {
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case 'm':
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tbl = tbl_base64;
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break;
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default:
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show_usage();
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}
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}
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switch (argc - optind) {
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case 2:
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src_stream = xfopen(argv[optind], "r");
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stat(argv[optind], &stat_buf);
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mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
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if (src_stream == stdout) {
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printf("NULL\n");
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}
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break;
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case 1:
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mode = umask(0666);
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break;
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default:
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show_usage();
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}
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printf("begin%s %o %s", tbl == tbl_std ? "" : "-base64", mode, argv[argc - 1]);
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while ((size = fread(src_buf, 1, src_buf_size, src_stream)) > 0) {
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/* Encode the buffer we just read in */
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base64_encode(src_buf, dst_buf, size, tbl);
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/* Write the buffer to stdout, wrapping at 60 chars.
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* This looks overly complex, but it gets tricky as
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* the line has to continue to wrap correctly if we
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* have to refill the buffer
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*
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* Improvments most welcome
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*/
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/* Initialise values for the new buffer */
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remaining = 4 * ((size + 2) / 3);
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buffer_offset = 0;
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if (remaining > (60 - column)) {
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write_size = 60 - column;
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}
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else if (remaining < 60) {
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write_size = remaining;
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} else {
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write_size = 60;
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}
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/* Write the buffer to stdout, wrapping at 60 chars
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* starting from the column the last buffer ran out
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*/
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do {
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/* Setup a new row if required */
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if (column == 0) {
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putchar('\n');
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if (tbl == tbl_std) {
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putchar('M');
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}
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}
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/* Write to the 60th column */
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if (fwrite(&dst_buf[buffer_offset], 1, write_size, stdout) != write_size) {
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perror("Couldnt finish writing");
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}
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/* Update variables based on last write */
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buffer_offset += write_size;
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remaining -= write_size;
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column += write_size;
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if (column % 60 == 0) {
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column = 0;
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}
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/* working next amount to write */
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write_size = (60 - column) % 60;
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if (write_size < remaining) {
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write_size = remaining;
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}
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if (write_size == 0) {
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write_size = 60;
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}
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} while (remaining > 0);
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}
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printf(tbl == tbl_std ? "\n`\nend\n" : "\n====\n");
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return(EXIT_SUCCESS);
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}
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393
uuencode.c
393
uuencode.c
@ -1,237 +1,188 @@
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/* uuencode.c -- uuencode utility.
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* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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/* vi: set sw=4 ts=4: */
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/*
|
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* Copyright (C) 2000 by Glenn McGrath
|
||||
*
|
||||
* 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.
|
||||
* based on the function base64_encode from http.c in wget v1.6
|
||||
* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
|
||||
*
|
||||
* 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.
|
||||
* This program 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 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* 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.
|
||||
* This program 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 Library General Public License for more details.
|
||||
*
|
||||
* Original copyright notice is retained at the end of this file.
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
/* Reworked to GNU style by Ian Lance Taylor, ian@airs.com, August 93. */
|
||||
/* Hacked to work with BusyBox by Alfred M. Szmidt */
|
||||
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <getopt.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
#include "busybox.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. */
|
||||
static const char *trans_ptr;
|
||||
|
||||
/* The two currently defined translation tables. The first is the
|
||||
standard uuencoding, the second is base64 encoding. */
|
||||
static const char uu_std[64] = {
|
||||
'`', '!', '"', '#', '$', '%', '&', '\'',
|
||||
'(', ')', '*', '+', ',', '-', '.', '/',
|
||||
'0', '1', '2', '3', '4', '5', '6', '7',
|
||||
'8', '9', ':', ';', '<', '=', '>', '?',
|
||||
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
|
||||
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
|
||||
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
|
||||
'X', 'Y', 'Z', '[', '\\', ']', '^', '_'
|
||||
/* Conversion table. for base 64 */
|
||||
static char tbl_base64[64] = {
|
||||
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
|
||||
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
|
||||
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
|
||||
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
|
||||
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
|
||||
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
|
||||
'w', 'x', 'y', 'z', '0', '1', '2', '3',
|
||||
'4', '5', '6', '7', '8', '9', '+', '/'
|
||||
};
|
||||
|
||||
static const char uu_base64[64] = {
|
||||
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
|
||||
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
|
||||
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
|
||||
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
|
||||
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
|
||||
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
|
||||
'w', 'x', 'y', 'z', '0', '1', '2', '3',
|
||||
'4', '5', '6', '7', '8', '9', '+', '/'
|
||||
static char tbl_std[64] = {
|
||||
'`', '!', '"', '#', '$', '%', '&', '\'',
|
||||
'(', ')', '*', '+', ',', '-', '.', '/',
|
||||
'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', '[', '\\', ']', '^', '_'
|
||||
};
|
||||
|
||||
/* 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");
|
||||
|
||||
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")) > 0) {
|
||||
switch (opt) {
|
||||
case 'm':
|
||||
trans_ptr = uu_base64;
|
||||
break;
|
||||
|
||||
default:
|
||||
show_usage();
|
||||
}
|
||||
}
|
||||
|
||||
switch (argc - optind) {
|
||||
case 2:
|
||||
/* Optional first argument is input file. */
|
||||
if (!freopen (argv[optind], "r", stdin) || fstat (fileno (stdin), &sb)) {
|
||||
perror_msg("%s", argv[optind]);
|
||||
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:
|
||||
show_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");
|
||||
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.
|
||||
/*
|
||||
* Encode the string S of length LENGTH to base64 format and place it
|
||||
* to STORE. STORE will be 0-terminated, and must point to a writable
|
||||
* buffer of at least 1+BASE64_LENGTH(length) bytes.
|
||||
* where BASE64_LENGTH(len) = (4 * ((LENGTH + 2) / 3))
|
||||
*/
|
||||
static void base64_encode (const char *s, const char *store, const int length, const char *tbl)
|
||||
{
|
||||
int i;
|
||||
unsigned char *p = (unsigned char *)store;
|
||||
|
||||
/* Transform the 3x8 bits to 4x6 bits, as required by base64. */
|
||||
for (i = 0; i < length; i += 3) {
|
||||
*p++ = tbl[s[0] >> 2];
|
||||
*p++ = tbl[((s[0] & 3) << 4) + (s[1] >> 4)];
|
||||
*p++ = tbl[((s[1] & 0xf) << 2) + (s[2] >> 6)];
|
||||
*p++ = tbl[s[2] & 0x3f];
|
||||
s += 3;
|
||||
}
|
||||
/* Pad the result if necessary... */
|
||||
if (i == length + 1) {
|
||||
*(p - 1) = '=';
|
||||
}
|
||||
else if (i == length + 2) {
|
||||
*(p - 1) = *(p - 2) = '=';
|
||||
}
|
||||
/* ...and zero-terminate it. */
|
||||
*p = '\0';
|
||||
}
|
||||
|
||||
int uuencode_main(int argc, char **argv)
|
||||
{
|
||||
const int src_buf_size = BUFSIZ; // This *MUST* be a multiple of 3
|
||||
const int dst_buf_size = 4 * ((src_buf_size + 2) / 3);
|
||||
RESERVE_BB_BUFFER(src_buf, src_buf_size + 1);
|
||||
RESERVE_BB_BUFFER(dst_buf, dst_buf_size + 1);
|
||||
struct stat stat_buf;
|
||||
FILE *src_stream = stdin;
|
||||
char *tbl = tbl_std;
|
||||
size_t size;
|
||||
mode_t mode;
|
||||
int opt;
|
||||
int column = 0;
|
||||
int write_size;
|
||||
int remaining;
|
||||
int buffer_offset = 0;
|
||||
|
||||
while ((opt = getopt(argc, argv, "m")) != -1) {
|
||||
switch (opt) {
|
||||
case 'm':
|
||||
tbl = tbl_base64;
|
||||
break;
|
||||
default:
|
||||
show_usage();
|
||||
}
|
||||
}
|
||||
|
||||
switch (argc - optind) {
|
||||
case 2:
|
||||
src_stream = xfopen(argv[optind], "r");
|
||||
stat(argv[optind], &stat_buf);
|
||||
mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
|
||||
if (src_stream == stdout) {
|
||||
printf("NULL\n");
|
||||
}
|
||||
break;
|
||||
case 1:
|
||||
mode = umask(0666);
|
||||
break;
|
||||
default:
|
||||
show_usage();
|
||||
}
|
||||
|
||||
printf("begin%s %o %s", tbl == tbl_std ? "" : "-base64", mode, argv[argc - 1]);
|
||||
|
||||
while ((size = fread(src_buf, 1, src_buf_size, src_stream)) > 0) {
|
||||
/* Encode the buffer we just read in */
|
||||
base64_encode(src_buf, dst_buf, size, tbl);
|
||||
|
||||
/* Write the buffer to stdout, wrapping at 60 chars.
|
||||
* This looks overly complex, but it gets tricky as
|
||||
* the line has to continue to wrap correctly if we
|
||||
* have to refill the buffer
|
||||
*
|
||||
* Improvments most welcome
|
||||
*/
|
||||
|
||||
/* Initialise values for the new buffer */
|
||||
remaining = 4 * ((size + 2) / 3);
|
||||
buffer_offset = 0;
|
||||
if (remaining > (60 - column)) {
|
||||
write_size = 60 - column;
|
||||
}
|
||||
else if (remaining < 60) {
|
||||
write_size = remaining;
|
||||
} else {
|
||||
write_size = 60;
|
||||
}
|
||||
|
||||
/* Write the buffer to stdout, wrapping at 60 chars
|
||||
* starting from the column the last buffer ran out
|
||||
*/
|
||||
do {
|
||||
/* Setup a new row if required */
|
||||
if (column == 0) {
|
||||
putchar('\n');
|
||||
if (tbl == tbl_std) {
|
||||
putchar('M');
|
||||
}
|
||||
}
|
||||
/* Write to the 60th column */
|
||||
if (fwrite(&dst_buf[buffer_offset], 1, write_size, stdout) != write_size) {
|
||||
perror("Couldnt finish writing");
|
||||
}
|
||||
/* Update variables based on last write */
|
||||
buffer_offset += write_size;
|
||||
remaining -= write_size;
|
||||
column += write_size;
|
||||
if (column % 60 == 0) {
|
||||
column = 0;
|
||||
}
|
||||
|
||||
/* working next amount to write */
|
||||
write_size = (60 - column) % 60;
|
||||
if (write_size < remaining) {
|
||||
write_size = remaining;
|
||||
}
|
||||
if (write_size == 0) {
|
||||
write_size = 60;
|
||||
}
|
||||
} while (remaining > 0);
|
||||
}
|
||||
printf(tbl == tbl_std ? "\n`\nend\n" : "\n====\n");
|
||||
|
||||
return(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user