1 /* vi: set sw=4 ts=4: */
3 * Copyright (C) 2000 by Glenn McGrath
5 * based on the function base64_encode from http.c in wget v1.6
6 * Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
8 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
11 //usage:#define uuencode_trivial_usage
12 //usage: "[-m] [FILE] STORED_FILENAME"
13 //usage:#define uuencode_full_usage "\n\n"
14 //usage: "Uuencode FILE (or stdin) to stdout\n"
15 //usage: "\n -m Use base64 encoding per RFC1521"
17 //usage:#define uuencode_example_usage
18 //usage: "$ uuencode busybox busybox\n"
19 //usage: "begin 755 busybox\n"
20 //usage: "<encoded file snipped>\n"
21 //usage: "$ uudecode busybox busybox > busybox.uu\n"
27 SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */
28 DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
31 int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
32 int uuencode_main(int argc UNUSED_PARAM, char **argv)
35 int src_fd = STDIN_FILENO;
38 char src_buf[SRC_BUF_SIZE];
39 char dst_buf[DST_BUF_SIZE + 1];
41 tbl = bb_uuenc_tbl_std;
42 mode = 0666 & ~umask(0666);
43 opt_complementary = "-1:?2"; /* must have 1 or 2 args */
44 if (getopt32(argv, "m")) {
45 tbl = bb_uuenc_tbl_base64;
49 src_fd = xopen(argv[0], O_RDONLY);
50 fstat(src_fd, &stat_buf);
51 mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
55 printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv);
57 size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
60 if ((ssize_t)size < 0)
61 bb_perror_msg_and_die(bb_msg_read_error);
62 /* Encode the buffer we just read in */
63 bb_uuencode(dst_buf, src_buf, size, tbl);
65 if (tbl == bb_uuenc_tbl_std) {
66 bb_putchar(tbl[size]);
69 xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
71 printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n");
73 fflush_stdout_and_exit(EXIT_SUCCESS);