busybox/coreutils/uuencode.c
Denys Vlasenko ee06264a29 base64: new applet
function                                             old     new   delta
base64_main                                            -     217    +217
packed_usage                                       27181   27229     +48
read_base64                                          348     373     +25
applet_names                                        2299    2306      +7
bbconfig_config_bz2                                 4942    4948      +6
applet_main                                         1352    1356      +4
applet_nameofs                                       676     678      +2
applet_install_loc                                   169     170      +1
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 7/0 up/down: 310/0)             Total: 310 bytes

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
2010-08-31 14:09:22 +02:00

62 lines
1.6 KiB
C

/* 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.
*/
#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);
}