2006-07-03 01:17:05 +05:30
|
|
|
/* vi: set sw=4 ts=4: */
|
2003-11-06 08:47:23 +05:30
|
|
|
/*
|
2010-08-16 23:44:46 +05:30
|
|
|
* Copyright 2003, Glenn McGrath
|
2000-06-13 12:24:53 +05:30
|
|
|
*
|
2010-08-16 23:44:46 +05:30
|
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
2000-06-13 12:24:53 +05:30
|
|
|
*
|
2010-08-16 23:44:46 +05:30
|
|
|
* Based on specification from
|
|
|
|
* http://www.opengroup.org/onlinepubs/007904975/utilities/uuencode.html
|
2000-06-13 12:24:53 +05:30
|
|
|
*
|
2010-08-16 23:44:46 +05:30
|
|
|
* Bugs: the spec doesn't mention anything about "`\n`\n" prior to the
|
|
|
|
* "end" line
|
2000-06-13 12:24:53 +05:30
|
|
|
*/
|
2016-11-23 19:16:56 +05:30
|
|
|
//config:config UUDECODE
|
2018-12-28 07:50:17 +05:30
|
|
|
//config: bool "uudecode (5.8 kb)"
|
2016-11-23 19:16:56 +05:30
|
|
|
//config: default y
|
|
|
|
//config: help
|
2017-07-21 13:20:55 +05:30
|
|
|
//config: uudecode is used to decode a uuencoded file.
|
2016-11-23 19:16:56 +05:30
|
|
|
|
|
|
|
//applet:IF_UUDECODE(APPLET(uudecode, BB_DIR_USR_BIN, BB_SUID_DROP))
|
|
|
|
|
|
|
|
//kbuild:lib-$(CONFIG_UUDECODE) += uudecode.o
|
2011-03-31 18:13:25 +05:30
|
|
|
|
|
|
|
//usage:#define uudecode_trivial_usage
|
|
|
|
//usage: "[-o OUTFILE] [INFILE]"
|
|
|
|
//usage:#define uudecode_full_usage "\n\n"
|
|
|
|
//usage: "Uudecode a file\n"
|
2012-03-05 18:53:26 +05:30
|
|
|
//usage: "Finds OUTFILE in uuencoded source unless -o is given"
|
2011-03-31 18:13:25 +05:30
|
|
|
//usage:
|
|
|
|
//usage:#define uudecode_example_usage
|
|
|
|
//usage: "$ uudecode -o busybox busybox.uu\n"
|
|
|
|
//usage: "$ ls -l busybox\n"
|
|
|
|
//usage: "-rwxr-xr-x 1 ams ams 245264 Jun 7 21:35 busybox\n"
|
|
|
|
|
2007-05-27 00:30:18 +05:30
|
|
|
#include "libbb.h"
|
2000-06-13 12:24:53 +05:30
|
|
|
|
2010-08-31 17:39:22 +05:30
|
|
|
#if ENABLE_UUDECODE
|
2010-09-16 21:21:13 +05:30
|
|
|
static void FAST_FUNC read_stduu(FILE *src_stream, FILE *dst_stream, int flags UNUSED_PARAM)
|
2000-06-13 12:24:53 +05:30
|
|
|
{
|
2003-11-06 08:47:23 +05:30
|
|
|
char *line;
|
|
|
|
|
2015-10-05 18:40:44 +05:30
|
|
|
for (;;) {
|
2008-03-17 14:37:36 +05:30
|
|
|
int encoded_len, str_len;
|
|
|
|
char *line_ptr, *dst;
|
2015-10-05 18:40:44 +05:30
|
|
|
size_t line_len;
|
|
|
|
|
|
|
|
line_len = 64 * 1024;
|
|
|
|
line = xmalloc_fgets_str_len(src_stream, "\n", &line_len);
|
|
|
|
if (!line)
|
|
|
|
break;
|
2017-07-14 20:54:59 +05:30
|
|
|
/* Handle both Unix and MSDOS text.
|
|
|
|
* Note: space should not be trimmed, some encoders use it instead of "`"
|
|
|
|
* for padding of last incomplete 4-char block.
|
|
|
|
*/
|
2015-10-05 18:40:44 +05:30
|
|
|
str_len = line_len;
|
2017-07-14 20:54:59 +05:30
|
|
|
while (--str_len >= 0
|
|
|
|
&& (line[str_len] == '\n' || line[str_len] == '\r')
|
|
|
|
) {
|
2015-10-05 18:40:44 +05:30
|
|
|
line[str_len] = '\0';
|
2017-07-14 20:54:59 +05:30
|
|
|
}
|
2003-11-06 08:47:23 +05:30
|
|
|
|
|
|
|
if (strcmp(line, "end") == 0) {
|
2008-03-17 14:37:36 +05:30
|
|
|
return; /* the only non-error exit */
|
2003-11-06 08:47:23 +05:30
|
|
|
}
|
|
|
|
|
2008-03-17 14:37:36 +05:30
|
|
|
line_ptr = line;
|
|
|
|
while (*line_ptr) {
|
|
|
|
*line_ptr = (*line_ptr - 0x20) & 0x3f;
|
|
|
|
line_ptr++;
|
|
|
|
}
|
|
|
|
str_len = line_ptr - line;
|
|
|
|
|
|
|
|
encoded_len = line[0] * 4 / 3;
|
|
|
|
/* Check that line is not too short. (we tolerate
|
2017-07-14 20:54:59 +05:30
|
|
|
* overly _long_ line to accommodate possible extra "`").
|
2008-03-17 14:37:36 +05:30
|
|
|
* Empty line case is also caught here. */
|
|
|
|
if (str_len <= encoded_len) {
|
|
|
|
break; /* go to bb_error_msg_and_die("short file"); */
|
|
|
|
}
|
|
|
|
if (encoded_len <= 0) {
|
2003-11-06 08:47:23 +05:30
|
|
|
/* Ignore the "`\n" line, why is it even in the encode file ? */
|
2008-03-17 14:37:36 +05:30
|
|
|
free(line);
|
2003-11-06 08:47:23 +05:30
|
|
|
continue;
|
|
|
|
}
|
2008-03-17 14:37:36 +05:30
|
|
|
if (encoded_len > 60) {
|
libbb: reduce the overhead of single parameter bb_error_msg() calls
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02 15:05:03 +05:30
|
|
|
bb_simple_error_msg_and_die("line too long");
|
2003-11-06 08:47:23 +05:30
|
|
|
}
|
2004-03-15 13:59:22 +05:30
|
|
|
|
2008-03-17 14:37:36 +05:30
|
|
|
dst = line;
|
|
|
|
line_ptr = line + 1;
|
|
|
|
do {
|
2003-11-06 08:47:23 +05:30
|
|
|
/* Merge four 6 bit chars to three 8 bit chars */
|
2008-03-17 14:37:36 +05:30
|
|
|
*dst++ = line_ptr[0] << 2 | line_ptr[1] >> 4;
|
|
|
|
encoded_len--;
|
|
|
|
if (encoded_len == 0) {
|
2003-11-06 08:47:23 +05:30
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2008-03-17 14:37:36 +05:30
|
|
|
*dst++ = line_ptr[1] << 4 | line_ptr[2] >> 2;
|
|
|
|
encoded_len--;
|
|
|
|
if (encoded_len == 0) {
|
2003-11-06 08:47:23 +05:30
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2008-03-17 14:37:36 +05:30
|
|
|
*dst++ = line_ptr[2] << 6 | line_ptr[3];
|
|
|
|
line_ptr += 4;
|
|
|
|
encoded_len -= 2;
|
|
|
|
} while (encoded_len > 0);
|
|
|
|
fwrite(line, 1, dst - line, dst_stream);
|
2003-11-06 08:47:23 +05:30
|
|
|
free(line);
|
|
|
|
}
|
libbb: reduce the overhead of single parameter bb_error_msg() calls
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02 15:05:03 +05:30
|
|
|
bb_simple_error_msg_and_die("short file");
|
2000-06-13 12:24:53 +05:30
|
|
|
}
|
|
|
|
|
2007-10-11 15:35:36 +05:30
|
|
|
int uudecode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
2008-07-05 14:48:54 +05:30
|
|
|
int uudecode_main(int argc UNUSED_PARAM, char **argv)
|
2000-06-13 12:24:53 +05:30
|
|
|
{
|
2008-03-17 14:37:36 +05:30
|
|
|
FILE *src_stream;
|
2003-11-06 08:47:23 +05:30
|
|
|
char *outname = NULL;
|
|
|
|
char *line;
|
|
|
|
|
2017-08-09 01:25:02 +05:30
|
|
|
getopt32(argv, "^" "o:" "\0" "?1"/* 1 arg max*/, &outname);
|
2007-06-05 05:02:35 +05:30
|
|
|
argv += optind;
|
2003-11-06 08:47:23 +05:30
|
|
|
|
2010-08-31 17:39:22 +05:30
|
|
|
if (!argv[0])
|
2008-03-17 14:37:36 +05:30
|
|
|
*--argv = (char*)"-";
|
2010-08-31 17:39:22 +05:30
|
|
|
src_stream = xfopen_stdin(argv[0]);
|
2003-11-06 08:47:23 +05:30
|
|
|
|
|
|
|
/* Search for the start of the encoding */
|
2008-03-27 01:34:27 +05:30
|
|
|
while ((line = xmalloc_fgetline(src_stream)) != NULL) {
|
2010-09-16 21:21:13 +05:30
|
|
|
void FAST_FUNC (*decode_fn_ptr)(FILE *src, FILE *dst, int flags);
|
2006-09-24 01:26:21 +05:30
|
|
|
char *line_ptr;
|
|
|
|
FILE *dst_stream;
|
|
|
|
int mode;
|
2007-01-11 22:50:00 +05:30
|
|
|
|
2015-03-12 22:18:34 +05:30
|
|
|
if (is_prefixed_with(line, "begin-base64 ")) {
|
2003-11-06 08:47:23 +05:30
|
|
|
line_ptr = line + 13;
|
|
|
|
decode_fn_ptr = read_base64;
|
2015-03-12 22:18:34 +05:30
|
|
|
} else if (is_prefixed_with(line, "begin ")) {
|
2003-11-06 08:47:23 +05:30
|
|
|
line_ptr = line + 6;
|
|
|
|
decode_fn_ptr = read_stduu;
|
2006-09-24 01:26:21 +05:30
|
|
|
} else {
|
|
|
|
free(line);
|
|
|
|
continue;
|
2003-11-06 08:47:23 +05:30
|
|
|
}
|
|
|
|
|
2007-06-05 05:02:35 +05:30
|
|
|
/* begin line found. decode and exit */
|
2008-03-17 14:37:36 +05:30
|
|
|
mode = bb_strtou(line_ptr, NULL, 8);
|
2006-09-24 01:26:21 +05:30
|
|
|
if (outname == NULL) {
|
|
|
|
outname = strchr(line_ptr, ' ');
|
2011-10-18 15:37:05 +05:30
|
|
|
if (!outname)
|
2006-09-24 01:26:21 +05:30
|
|
|
break;
|
|
|
|
outname++;
|
2015-10-05 18:40:44 +05:30
|
|
|
trim(outname); /* remove trailing space (and '\r' for DOS text) */
|
2011-10-18 15:37:05 +05:30
|
|
|
if (!outname[0])
|
|
|
|
break;
|
2006-09-24 01:26:21 +05:30
|
|
|
}
|
2007-06-05 05:02:35 +05:30
|
|
|
dst_stream = stdout;
|
2021-12-12 05:04:15 +05:30
|
|
|
if (NOT_LONE_DASH(outname)
|
|
|
|
/* https://pubs.opengroup.org/onlinepubs/9699919799/utilities/uudecode.html
|
|
|
|
* https://pubs.opengroup.org/onlinepubs/9699919799/utilities/uuencode.html
|
|
|
|
* The above says that output file name specified in input file
|
|
|
|
* or overridden by -o OUTFILE can be special "/dev/stdout" string.
|
|
|
|
* This usually works "implicitly": many systems have /dev/stdout.
|
|
|
|
* If ENABLE_DESKTOP, support that explicitly:
|
|
|
|
*/
|
|
|
|
&& (!ENABLE_DESKTOP || strcmp(outname, "/dev/stdout") != 0)
|
|
|
|
) {
|
2008-07-22 04:35:26 +05:30
|
|
|
dst_stream = xfopen_for_write(outname);
|
2008-03-17 14:37:36 +05:30
|
|
|
fchmod(fileno(dst_stream), mode & (S_IRWXU | S_IRWXG | S_IRWXO));
|
2003-11-06 08:47:23 +05:30
|
|
|
}
|
|
|
|
free(line);
|
2010-09-16 21:21:13 +05:30
|
|
|
decode_fn_ptr(src_stream, dst_stream, /*flags:*/ BASE64_FLAG_UU_STOP + BASE64_FLAG_NO_STOP_CHAR);
|
2007-06-05 05:02:35 +05:30
|
|
|
/* fclose_if_not_stdin(src_stream); - redundant */
|
2007-01-21 02:59:32 +05:30
|
|
|
return EXIT_SUCCESS;
|
2003-11-06 08:47:23 +05:30
|
|
|
}
|
libbb: reduce the overhead of single parameter bb_error_msg() calls
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02 15:05:03 +05:30
|
|
|
bb_simple_error_msg_and_die("no 'begin' line");
|
2000-06-13 12:24:53 +05:30
|
|
|
}
|
2010-08-31 17:39:22 +05:30
|
|
|
#endif
|
|
|
|
|
2020-11-26 03:17:00 +05:30
|
|
|
//config:config BASE32
|
|
|
|
//config: bool "base32 (4.9 kb)"
|
|
|
|
//config: default y
|
|
|
|
//config: help
|
|
|
|
//config: Base32 encode and decode
|
2010-08-31 17:39:22 +05:30
|
|
|
|
|
|
|
//config:config BASE64
|
2018-12-28 07:50:17 +05:30
|
|
|
//config: bool "base64 (4.9 kb)"
|
2010-08-31 17:39:22 +05:30
|
|
|
//config: default y
|
|
|
|
//config: help
|
2017-07-21 13:20:55 +05:30
|
|
|
//config: Base64 encode and decode
|
2010-08-31 17:39:22 +05:30
|
|
|
|
2020-11-26 03:17:00 +05:30
|
|
|
//usage:#define base32_trivial_usage
|
2020-11-27 19:55:31 +05:30
|
|
|
//usage: "[-d] [-w COL] [FILE]"
|
2020-11-26 03:17:00 +05:30
|
|
|
//usage:#define base32_full_usage "\n\n"
|
2021-06-13 04:38:48 +05:30
|
|
|
//usage: "Base32 encode or decode FILE to standard output\n"
|
2020-11-26 03:17:00 +05:30
|
|
|
//usage: "\n -d Decode data"
|
2020-11-27 19:55:31 +05:30
|
|
|
//usage: "\n -w COL Wrap lines at COL (default 76, 0 disables)"
|
2020-11-26 03:17:00 +05:30
|
|
|
////usage: "\n -i When decoding, ignore non-alphabet characters"
|
|
|
|
|
2010-08-31 17:39:22 +05:30
|
|
|
//usage:#define base64_trivial_usage
|
2020-11-27 19:55:31 +05:30
|
|
|
//usage: "[-d] [-w COL] [FILE]"
|
2010-08-31 17:39:22 +05:30
|
|
|
//usage:#define base64_full_usage "\n\n"
|
2021-06-13 04:38:48 +05:30
|
|
|
//usage: "Base64 encode or decode FILE to standard output\n"
|
2010-08-31 17:39:22 +05:30
|
|
|
//usage: "\n -d Decode data"
|
2020-11-27 19:55:31 +05:30
|
|
|
//usage: "\n -w COL Wrap lines at COL (default 76, 0 disables)"
|
2021-06-14 03:28:17 +05:30
|
|
|
///////: "\n -i When decoding, ignore non-alphabet characters"
|
|
|
|
// -i is accepted but has no effect: currently, decode_base32/64() functions
|
|
|
|
// (called via read_base64()) skip invalid chars unconditionally.
|
2010-08-31 17:39:22 +05:30
|
|
|
|
2020-11-26 03:17:00 +05:30
|
|
|
// APPLET_ODDNAME:name main location suid_type help
|
|
|
|
//applet:IF_BASE32(APPLET_ODDNAME(base32, baseNUM, BB_DIR_BIN, BB_SUID_DROP, base32))
|
|
|
|
//applet:IF_BASE64(APPLET_ODDNAME(base64, baseNUM, BB_DIR_BIN, BB_SUID_DROP, base64))
|
|
|
|
|
|
|
|
//kbuild:lib-$(CONFIG_BASE64) += uudecode.o
|
|
|
|
//kbuild:lib-$(CONFIG_BASE32) += uudecode.o
|
|
|
|
|
|
|
|
#if ENABLE_BASE32 || ENABLE_BASE64
|
|
|
|
|
|
|
|
# if ENABLE_BASE32
|
|
|
|
static void bb_b32encode(char *p, const void *src, int length)
|
|
|
|
{
|
|
|
|
#define tbl bb_uuenc_tbl_base32
|
|
|
|
const unsigned char *s = src;
|
|
|
|
|
|
|
|
/* Transform 5x8 bits to 8x5 bits */
|
|
|
|
while (length > 0) {
|
|
|
|
unsigned cur, next;
|
|
|
|
|
|
|
|
length--;
|
|
|
|
cur = *s++;
|
|
|
|
*p++ = tbl[cur >> 3]; // xxxxx--- -------- -------- -------- --------
|
|
|
|
cur &= 7;
|
|
|
|
|
|
|
|
next = 0;
|
|
|
|
if (--length >= 0)
|
|
|
|
next = *s++;
|
|
|
|
*p++ = tbl[(cur << 2) + (next >> 6)]; // -----xxx xx------ -------- -------- --------
|
|
|
|
cur = next & 0x3f;
|
|
|
|
|
|
|
|
*p++ = tbl[cur >> 1]; // -------- --xxxxx- -------- -------- --------
|
|
|
|
cur &= 1;
|
|
|
|
|
|
|
|
next = 0;
|
|
|
|
if (--length >= 0)
|
|
|
|
next = *s++;
|
|
|
|
*p++ = tbl[(cur << 4) + (next >> 4)]; // -------- -------x xxxx---- -------- --------
|
|
|
|
cur = next & 0xf;
|
|
|
|
|
|
|
|
next = 0;
|
|
|
|
if (--length >= 0)
|
|
|
|
next = *s++;
|
|
|
|
*p++ = tbl[(cur << 1) + (next >> 7)]; // -------- -------- ----xxxx x------- --------
|
|
|
|
cur = next & 0x7f;
|
|
|
|
|
|
|
|
*p++ = tbl[cur >> 2]; // -------- -------- -------- -xxxxx-- --------
|
|
|
|
cur &= 3;
|
|
|
|
|
|
|
|
next = 0;
|
|
|
|
if (--length >= 0)
|
|
|
|
next = *s++;
|
|
|
|
*p++ = tbl[(cur << 3) + (next >> 5)]; // -------- -------- -------- ------xx xxx-----
|
|
|
|
cur = next & 0x1f;
|
|
|
|
|
|
|
|
*p++ = tbl[cur]; // -------- -------- -------- -------- ---xxxxx
|
|
|
|
}
|
|
|
|
#undef tbl
|
|
|
|
/* Zero-terminate */
|
|
|
|
*p = '\0';
|
|
|
|
/* Pad as necessary */
|
|
|
|
length = ((-length) * 3) >> 1; /* -4 => 6 pad chars, -3 => 4, -2 => 3, -1 => 1 */
|
|
|
|
while (length--) {
|
|
|
|
*--p = '=';
|
|
|
|
}
|
|
|
|
}
|
|
|
|
# else
|
|
|
|
void bb_b32encode(char *p, const void *src, int length); /* undefined */
|
|
|
|
# endif
|
|
|
|
|
|
|
|
int baseNUM_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
|
|
int baseNUM_main(int argc UNUSED_PARAM, char **argv)
|
2010-08-31 17:39:22 +05:30
|
|
|
{
|
|
|
|
FILE *src_stream;
|
|
|
|
unsigned opts;
|
2020-11-27 19:55:31 +05:30
|
|
|
unsigned col = 76;
|
2010-08-31 17:39:22 +05:30
|
|
|
|
2021-06-14 03:28:17 +05:30
|
|
|
opts = getopt32(argv, "^" "diw:+" "\0" "?1"/* 1 arg max*/, &col);
|
2010-08-31 17:39:22 +05:30
|
|
|
argv += optind;
|
|
|
|
|
|
|
|
if (!argv[0])
|
|
|
|
*--argv = (char*)"-";
|
|
|
|
src_stream = xfopen_stdin(argv[0]);
|
2020-11-27 19:55:31 +05:30
|
|
|
if (opts & 1) {
|
2020-11-28 18:52:52 +05:30
|
|
|
/* -d: decode */
|
2020-11-26 03:17:00 +05:30
|
|
|
int flags = (unsigned char)EOF;
|
|
|
|
if (ENABLE_BASE32 && (!ENABLE_BASE64 || applet_name[4] == '3'))
|
|
|
|
flags = ((unsigned char)EOF) | BASE64_32;
|
|
|
|
read_base64(src_stream, stdout, flags);
|
2010-08-31 17:39:22 +05:30
|
|
|
} else {
|
|
|
|
enum {
|
2020-11-27 19:55:31 +05:30
|
|
|
SRC_BUF_SIZE = 3 * 5 * 32, /* this *MUST* be a multiple of 3 and 5 */
|
2020-11-28 18:52:52 +05:30
|
|
|
DST_BUF_SIZE = 8 * ((SRC_BUF_SIZE + 4) / 5), /* max growth on encode (base32 case) */
|
2010-08-31 17:39:22 +05:30
|
|
|
};
|
2020-11-27 20:09:23 +05:30
|
|
|
/* Use one buffer for both input and output:
|
2020-11-28 18:52:52 +05:30
|
|
|
* encoding reads input "left-to-right",
|
2020-11-27 20:09:23 +05:30
|
|
|
* it's safe to place source at the end of the buffer and
|
2020-11-28 18:52:52 +05:30
|
|
|
* overwrite it while encoding, just be careful to have a gap.
|
2020-11-27 20:09:23 +05:30
|
|
|
*/
|
|
|
|
char dst_buf[((DST_BUF_SIZE + /*gap:*/ 16) /*round up to 16:*/ | 0xf) + 1];
|
|
|
|
#define src_buf (dst_buf + sizeof(dst_buf) - SRC_BUF_SIZE)
|
|
|
|
int src_fd, rem;
|
2020-11-27 19:55:31 +05:30
|
|
|
|
2020-11-27 20:09:23 +05:30
|
|
|
src_fd = fileno(src_stream);
|
|
|
|
rem = 0;
|
2010-08-31 17:39:22 +05:30
|
|
|
while (1) {
|
2020-11-27 19:55:31 +05:30
|
|
|
size_t size = full_read(src_fd, src_buf, SRC_BUF_SIZE);
|
2010-08-31 17:39:22 +05:30
|
|
|
if ((ssize_t)size < 0)
|
libbb: reduce the overhead of single parameter bb_error_msg() calls
Back in 2007, commit 0c97c9d43707 ("'simple' error message functions by
Loic Grenie") introduced bb_simple_perror_msg() to allow for a lower
overhead call to bb_perror_msg() when only a string was being printed
with no parameters. This saves space for some CPU architectures because
it avoids the overhead of a call to a variadic function. However there
has never been a simple version of bb_error_msg(), and since 2007 many
new calls to bb_perror_msg() have been added that only take a single
parameter and so could have been using bb_simple_perror_message().
This changeset introduces 'simple' versions of bb_info_msg(),
bb_error_msg(), bb_error_msg_and_die(), bb_herror_msg() and
bb_herror_msg_and_die(), and replaces all calls that only take a
single parameter, or use something like ("%s", arg), with calls to the
corresponding 'simple' version.
Since it is likely that single parameter calls to the variadic functions
may be accidentally reintroduced in the future a new debugging config
option WARN_SIMPLE_MSG has been introduced. This uses some macro magic
which will cause any such calls to generate a warning, but this is
turned off by default to avoid use of the unpleasant macros in normal
circumstances.
This is a large changeset due to the number of calls that have been
replaced. The only files that contain changes other than simple
substitution of function calls are libbb.h, libbb/herror_msg.c,
libbb/verror_msg.c and libbb/xfuncs_printf.c. In miscutils/devfsd.c,
networking/udhcp/common.h and util-linux/mdev.c additonal macros have
been added for logging so that single parameter and multiple parameter
logging variants exist.
The amount of space saved varies considerably by architecture, and was
found to be as follows (for 'defconfig' using GCC 7.4):
Arm: -92 bytes
MIPS: -52 bytes
PPC: -1836 bytes
x86_64: -938 bytes
Note that for the MIPS architecture only an exception had to be made
disabling the 'simple' calls for 'udhcp' (in networking/udhcp/common.h)
because it made these files larger on MIPS.
Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2019-07-02 15:05:03 +05:30
|
|
|
bb_simple_perror_msg_and_die(bb_msg_read_error);
|
2020-11-27 19:55:31 +05:30
|
|
|
if (size == 0) {
|
|
|
|
if (rem != 0) bb_putchar('\n');
|
|
|
|
break;
|
|
|
|
}
|
2020-11-26 03:17:00 +05:30
|
|
|
|
2010-08-31 17:39:22 +05:30
|
|
|
/* Encode the buffer we just read in */
|
2020-11-26 03:17:00 +05:30
|
|
|
if (ENABLE_BASE32 && (!ENABLE_BASE64 || applet_name[4] == '3')) {
|
|
|
|
bb_b32encode(dst_buf, src_buf, size);
|
|
|
|
size = 8 * ((size + 4) / 5);
|
|
|
|
} else {
|
|
|
|
bb_uuencode(dst_buf, src_buf, size, bb_uuenc_tbl_base64);
|
|
|
|
size = 4 * ((size + 2) / 3);
|
|
|
|
}
|
|
|
|
|
2020-11-27 19:55:31 +05:30
|
|
|
if (col == 0) {
|
2021-02-04 01:17:14 +05:30
|
|
|
fputs_stdout(dst_buf);
|
2020-11-27 19:55:31 +05:30
|
|
|
} else {
|
|
|
|
char *result = dst_buf;
|
|
|
|
if (rem == 0)
|
|
|
|
rem = col;
|
|
|
|
while (1) {
|
|
|
|
int out = size < rem ? size : rem;
|
|
|
|
rem -= out;
|
|
|
|
printf(rem != 0 ? "%.*s" : "%.*s\n", out, result);
|
|
|
|
if (rem != 0)
|
|
|
|
break;
|
|
|
|
size -= out;
|
|
|
|
if (size == 0)
|
|
|
|
break;
|
|
|
|
result += out;
|
|
|
|
rem = col;
|
|
|
|
}
|
|
|
|
}
|
2010-08-31 17:39:22 +05:30
|
|
|
}
|
2020-11-27 20:09:23 +05:30
|
|
|
#undef src_buf
|
2010-08-31 17:39:22 +05:30
|
|
|
}
|
|
|
|
|
|
|
|
fflush_stdout_and_exit(EXIT_SUCCESS);
|
|
|
|
}
|
|
|
|
#endif
|
2007-06-05 05:02:35 +05:30
|
|
|
|
|
|
|
/* Test script.
|
|
|
|
Put this into an empty dir with busybox binary, an run.
|
|
|
|
|
|
|
|
#!/bin/sh
|
|
|
|
test -x busybox || { echo "No ./busybox?"; exit; }
|
|
|
|
ln -sf busybox uudecode
|
|
|
|
ln -sf busybox uuencode
|
|
|
|
>A_null
|
|
|
|
echo -n A >A
|
|
|
|
echo -n AB >AB
|
|
|
|
echo -n ABC >ABC
|
|
|
|
echo -n ABCD >ABCD
|
|
|
|
echo -n ABCDE >ABCDE
|
|
|
|
echo -n ABCDEF >ABCDEF
|
|
|
|
cat busybox >A_bbox
|
|
|
|
for f in A*; do
|
|
|
|
echo uuencode $f
|
|
|
|
./uuencode $f <$f >u_$f
|
|
|
|
./uuencode -m $f <$f >m_$f
|
|
|
|
done
|
|
|
|
mkdir unpk_u unpk_m 2>/dev/null
|
|
|
|
for f in u_*; do
|
|
|
|
./uudecode <$f -o unpk_u/${f:2}
|
|
|
|
diff -a ${f:2} unpk_u/${f:2} >/dev/null 2>&1
|
|
|
|
echo uudecode $f: $?
|
|
|
|
done
|
|
|
|
for f in m_*; do
|
|
|
|
./uudecode <$f -o unpk_m/${f:2}
|
|
|
|
diff -a ${f:2} unpk_m/${f:2} >/dev/null 2>&1
|
|
|
|
echo uudecode $f: $?
|
|
|
|
done
|
|
|
|
*/
|