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.
10 //config:config UUENCODE
11 //config: bool "uuencode (4.6 kb)"
14 //config: uuencode is used to uuencode a file.
16 //applet:IF_UUENCODE(APPLET(uuencode, BB_DIR_USR_BIN, BB_SUID_DROP))
18 //kbuild:lib-$(CONFIG_UUENCODE) += uuencode.o
20 //usage:#define uuencode_trivial_usage
21 //usage: "[-m] [FILE] STORED_FILENAME"
22 //usage:#define uuencode_full_usage "\n\n"
23 //usage: "Uuencode FILE (or stdin) to stdout\n"
24 //usage: "\n -m Use base64 encoding per RFC1521"
26 //usage:#define uuencode_example_usage
27 //usage: "$ uuencode busybox busybox\n"
28 //usage: "begin 755 busybox\n"
29 //usage: "<encoded file snipped>\n"
30 //usage: "$ uudecode busybox busybox > busybox.uu\n"
36 SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */
37 DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
40 int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
41 int uuencode_main(int argc UNUSED_PARAM, char **argv)
44 int src_fd = STDIN_FILENO;
47 char src_buf[SRC_BUF_SIZE];
48 char dst_buf[DST_BUF_SIZE + 1];
50 tbl = bb_uuenc_tbl_std;
51 mode = 0666 & ~umask(0666);
52 opt_complementary = "-1:?2"; /* must have 1 or 2 args */
53 if (getopt32(argv, "m")) {
54 tbl = bb_uuenc_tbl_base64;
58 src_fd = xopen(argv[0], O_RDONLY);
59 fstat(src_fd, &stat_buf);
60 mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
64 printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv);
66 size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
69 if ((ssize_t)size < 0)
70 bb_perror_msg_and_die(bb_msg_read_error);
71 /* Encode the buffer we just read in */
72 bb_uuencode(dst_buf, src_buf, size, tbl);
74 if (tbl == bb_uuenc_tbl_std) {
75 bb_putchar(tbl[size]);
78 xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
80 printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n");
82 fflush_stdout_and_exit(EXIT_SUCCESS);