blob: 673ef36e70008f514e242f3aff0d015f40c30671
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Copyright (C) 2000 by Glenn McGrath |
4 | * |
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. |
7 | * |
8 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
9 | */ |
10 | |
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" |
16 | //usage: |
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" |
22 | //usage: "$\n" |
23 | |
24 | #include "libbb.h" |
25 | |
26 | enum { |
27 | SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */ |
28 | DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3), |
29 | }; |
30 | |
31 | int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
32 | int uuencode_main(int argc UNUSED_PARAM, char **argv) |
33 | { |
34 | struct stat stat_buf; |
35 | int src_fd = STDIN_FILENO; |
36 | const char *tbl; |
37 | mode_t mode; |
38 | char src_buf[SRC_BUF_SIZE]; |
39 | char dst_buf[DST_BUF_SIZE + 1]; |
40 | |
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; |
46 | } |
47 | argv += optind; |
48 | if (argv[1]) { |
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); |
52 | argv++; |
53 | } |
54 | |
55 | printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv); |
56 | while (1) { |
57 | size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE); |
58 | if (!size) |
59 | break; |
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); |
64 | bb_putchar('\n'); |
65 | if (tbl == bb_uuenc_tbl_std) { |
66 | bb_putchar(tbl[size]); |
67 | } |
68 | fflush(stdout); |
69 | xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3)); |
70 | } |
71 | printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n"); |
72 | |
73 | fflush_stdout_and_exit(EXIT_SUCCESS); |
74 | } |
75 |