1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Copyright (C) 2000 by Glenn McGrath
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4 | *
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5 | * based on the function base64_encode from http.c in wget v1.6
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6 | * Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
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7 | *
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8 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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9 | */
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10 |
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11 | #include "libbb.h"
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12 |
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13 | enum {
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14 | SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */
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15 | DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
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16 | };
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17 |
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18 | int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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19 | int uuencode_main(int argc UNUSED_PARAM, char **argv)
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20 | {
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21 | struct stat stat_buf;
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22 | int src_fd = STDIN_FILENO;
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23 | const char *tbl;
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24 | mode_t mode;
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25 | char src_buf[SRC_BUF_SIZE];
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26 | char dst_buf[DST_BUF_SIZE + 1];
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27 |
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28 | tbl = bb_uuenc_tbl_std;
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29 | mode = 0666 & ~umask(0666);
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30 | opt_complementary = "-1:?2"; /* must have 1 or 2 args */
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31 | if (getopt32(argv, "m")) {
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32 | tbl = bb_uuenc_tbl_base64;
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33 | }
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34 | argv += optind;
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35 | if (argv[1]) {
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36 | src_fd = xopen(argv[0], O_RDONLY);
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37 | fstat(src_fd, &stat_buf);
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38 | mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
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39 | argv++;
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40 | }
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41 |
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42 | printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv);
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43 | while (1) {
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44 | size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
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45 | if (!size)
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46 | break;
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47 | if ((ssize_t)size < 0)
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48 | bb_perror_msg_and_die(bb_msg_read_error);
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49 | /* Encode the buffer we just read in */
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50 | bb_uuencode(dst_buf, src_buf, size, tbl);
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51 | bb_putchar('\n');
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52 | if (tbl == bb_uuenc_tbl_std) {
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53 | bb_putchar(tbl[size]);
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54 | }
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55 | fflush(stdout);
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56 | xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
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57 | }
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58 | printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n");
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59 |
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60 | fflush_stdout_and_exit(EXIT_SUCCESS);
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61 | }
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