-/* uuencode.c -- uuencode utility.
- * Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+/* vi: set sw=4 ts=4: */
+/*
+ * 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 "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;
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include "busybox.h"
-/* The two currently defined translation tables. The first is the
- standard uuencoding, the second is base64 encoding. */
-const char uu_std[64] = {
- '`', '!', '"', '#', '$', '%', '&', '\'',
- '(', ')', '*', '+', ',', '-', '.', '/',
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', ':', ';', '<', '=', '>', '?',
- '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
- 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
- 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
- 'X', 'Y', 'Z', '[', '\\', ']', '^', '_'
+/* Conversion table. for base 64 */
+static char tbl_base64[64] = {
+ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+ 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+ 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+ 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+ 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+ 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+ 'w', 'x', 'y', 'z', '0', '1', '2', '3',
+ '4', '5', '6', '7', '8', '9', '+', '/'
};
-const char uu_base64[64] = {
- 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
- 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
- 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
- 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
- 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
- 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
- 'w', 'x', 'y', 'z', '0', '1', '2', '3',
- '4', '5', '6', '7', '8', '9', '+', '/'
+static char tbl_std[64] = {
+ '`', '!', '"', '#', '$', '%', '&', '\'',
+ '(', ')', '*', '+', ',', '-', '.', '/',
+ '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()
+/*
+ * 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 uuencode (const char *s, const char *store, const int length, const char *tbl)
{
- 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))
- errorMsg("Read error\n");
-
- if (trans_ptr == uu_std) {
- putchar (ENC ('\0'));
- putchar ('\n');
- }
+ 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)
+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)) {
- errorMsg("%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)) {
- errorMsg("Write error\n");
- return EXIT_FAILURE;
- }
- return EXIT_SUCCESS;
+ const int src_buf_size = 60; // 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 = 0;
+ 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 = 0666 & ~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 */
+ uuencode(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;
+
+ /* Write the buffer to stdout, wrapping at 60 chars
+ * starting from the column the last buffer ran out
+ */
+ do {
+ if (remaining > (60 - column)) {
+ write_size = 60 - column;
+ }
+ else if (remaining < 60) {
+ write_size = remaining;
+ } else {
+ write_size = 60;
+ }
+
+ /* 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;
+ }
+ } while (remaining > 0);
+ }
+ printf(tbl == tbl_std ? "\n`\nend\n" : "\n====\n");
+
+ 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.
- */
-
-
projects / oweals / busybox.git / blobdiff