source: branches/3.2/mindi-busybox/coreutils/uuencode.c @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
File size: 2.1 KB
Line 
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
26enum {
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
31int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
32int 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}
Note: See TracBrowser for help on using the repository browser.