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/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2000 by Glenn McGrath
*
* based on the function base64_encode from http.c in wget v1.6
* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//usage:#define uuencode_trivial_usage
//usage: "[-m] [FILE] STORED_FILENAME"
//usage:#define uuencode_full_usage "\n\n"
//usage: "Uuencode FILE (or stdin) to stdout\n"
//usage: "\n -m Use base64 encoding per RFC1521"
//usage:
//usage:#define uuencode_example_usage
//usage: "$ uuencode busybox busybox\n"
//usage: "begin 755 busybox\n"
//usage: "<encoded file snipped>\n"
//usage: "$ uudecode busybox busybox > busybox.uu\n"
//usage: "$\n"
#include "libbb.h"
enum {
SRC_BUF_SIZE = 15*3, /* This *MUST* be a multiple of 3 */
DST_BUF_SIZE = 4 * ((SRC_BUF_SIZE + 2) / 3),
};
int uuencode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int uuencode_main(int argc UNUSED_PARAM, char **argv)
{
struct stat stat_buf;
int src_fd = STDIN_FILENO;
const char *tbl;
mode_t mode;
char src_buf[SRC_BUF_SIZE];
char dst_buf[DST_BUF_SIZE + 1];
tbl = bb_uuenc_tbl_std;
mode = 0666 & ~umask(0666);
opt_complementary = "-1:?2"; /* must have 1 or 2 args */
if (getopt32(argv, "m")) {
tbl = bb_uuenc_tbl_base64;
}
argv += optind;
if (argv[1]) {
src_fd = xopen(argv[0], O_RDONLY);
fstat(src_fd, &stat_buf);
mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
argv++;
}
printf("begin%s %o %s", tbl == bb_uuenc_tbl_std ? "" : "-base64", mode, *argv);
while (1) {
size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
if (!size)
break;
if ((ssize_t)size < 0)
bb_perror_msg_and_die(bb_msg_read_error);
/* Encode the buffer we just read in */
bb_uuencode(dst_buf, src_buf, size, tbl);
bb_putchar('\n');
if (tbl == bb_uuenc_tbl_std) {
bb_putchar(tbl[size]);
}
fflush(stdout);
xwrite(STDOUT_FILENO, dst_buf, 4 * ((size + 2) / 3));
}
printf(tbl == bb_uuenc_tbl_std ? "\n`\nend\n" : "\n====\n");
fflush_stdout_and_exit(EXIT_SUCCESS);
}
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