2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 static const char copyright[] =
35 "@(#) Copyright (c) 1983, 1993\n\
36 The Regents of the University of California. All rights reserved.\n";
40 static char sccsid[] = "@(#)uuencode.c 8.2 (Berkeley) 4/2/94";
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
47 * uuencode [input] output
49 * Encode a file so it can be mailed to a remote system.
51 #include <sys/param.h>
52 #include <sys/socket.h>
55 #include <netinet/in.h>
67 extern int main_encode(int, char *[]);
68 extern int main_base64_encode(const char *, const char *);
70 static void encode(void);
71 static void base64_encode(void);
72 static int arg_to_col(const char *);
73 static void usage(void);
79 static int columns = 76;
82 main_base64_encode(const char *in, const char *w)
85 if (in != NULL && freopen(in, "r", stdin) == NULL)
89 columns = arg_to_col(w);
92 errx(1, "write error");
97 main_encode(int argc, char *argv[])
107 if (strcmp(basename(argv[0]), "b64encode") == 0)
110 while ((ch = getopt(argc, argv, "mo:rw:")) != -1) {
122 columns = arg_to_col(optarg);
133 case 2: /* optional first argument is input file */
134 if (!freopen(*argv, "r", stdin) || fstat(fileno(stdin), &sb))
136 #define RWX (S_IRWXU|S_IRWXG|S_IRWXO)
137 mode = sb.st_mode & RWX;
141 #define RW (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
142 mode = RW & ~umask(RW);
151 if (outfile != NULL) {
152 output = fopen(outfile, "w+");
154 err(1, "unable to open %s for output", outfile);
162 errx(1, "write error");
166 /* ENC is the basic 1 character encoding function to make a char printing */
167 #define ENC(c) ((c) ? ((c) & 077) + ' ': '`')
170 * Copy from in to out, encoding in base64 as you go along.
176 * This buffer's length should be a multiple of 24 bits to avoid "="
177 * padding. Once it reached ~1 KB, further expansion didn't improve
178 * performance for me.
180 unsigned char buf[1023];
181 char buf2[sizeof(buf) * 2 + 1];
187 fprintf(output, "begin-base64 %o %s\n", mode, *av);
188 while ((n = fread(buf, 1, sizeof(buf), stdin))) {
189 rv = b64_ntop(buf, n, buf2, nitems(buf2));
191 errx(1, "b64_ntop: error encoding base64");
196 for (int i = 0; i < rv; i += written) {
197 written = fprintf(output, "%.*s", columns - carry,
200 carry = (carry + written) % columns;
205 if (columns == 0 || carry != 0)
208 fprintf(output, "====\n");
212 * Copy from in to out, encoding as you go along.
222 (void)fprintf(output, "begin %o %s\n", mode, *av);
223 while ((n = fread(buf, 1, 45, stdin))) {
225 if (fputc(ch, output) == EOF)
227 for (p = buf; n > 0; n -= 3, p += 3) {
228 /* Pad with nulls if not a multiple of 3. */
236 if (fputc(ch, output) == EOF)
238 ch = ((*p << 4) & 060) | ((p[1] >> 4) & 017);
240 if (fputc(ch, output) == EOF)
242 ch = ((p[1] << 2) & 074) | ((p[2] >> 6) & 03);
244 if (fputc(ch, output) == EOF)
248 if (fputc(ch, output) == EOF)
251 if (fputc('\n', output) == EOF)
255 errx(1, "read error");
257 (void)fprintf(output, "%c\nend\n", ENC('\0'));
261 arg_to_col(const char *w)
267 option = strtol(w, &ep, 10);
268 if (option > INT_MAX)
270 else if (ep[0] != '\0')
277 err(2, "columns argument must be non-negative");
285 (void)fprintf(stderr,
286 "usage: uuencode [-m] [-o outfile] [infile] remotefile\n"
287 " b64encode [-o outfile] [infile] remotefile\n");