mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
uudecode: fix to base64 decode by Jorgen Cederlof <jcz@google.com>
improved help texts # make bloatcheck function old new delta .rodata 127000 127032 +32 packed_usage 22156 22151 -5 uudecode_main 360 348 -12 uuencode_main 490 468 -22 read_base64 283 254 -29 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/4 up/down: 32/-68) Total: -36 bytes
This commit is contained in:
Denis Vlasenko
parent
8c1aaf3297
commit
746204b1b8
@ -70,7 +70,7 @@ static void read_base64(FILE *src_stream, FILE *dst_stream)
|
||||
{
|
||||
static const char base64_table[] =
|
||||
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n";
|
||||
int term_count = 0;
|
||||
int term_count = 1;
|
||||
|
||||
while (1) {
|
||||
char translated[4];
|
||||
@ -86,19 +86,19 @@ static void read_base64(FILE *src_stream, FILE *dst_stream)
|
||||
if (ch == EOF) {
|
||||
bb_error_msg_and_die("short file");
|
||||
}
|
||||
} while ((table_ptr = strchr(base64_table, ch)) == NULL);
|
||||
table_ptr = strchr(base64_table, ch);
|
||||
} while (table_ptr == NULL);
|
||||
|
||||
/* Convert encoded charcter to decimal */
|
||||
ch = table_ptr - base64_table;
|
||||
|
||||
if (*table_ptr == '=') {
|
||||
if (term_count == 0) {
|
||||
translated[count] = 0;
|
||||
translated[count] = '\0';
|
||||
break;
|
||||
}
|
||||
term_count++;
|
||||
}
|
||||
else if (*table_ptr == '\n') {
|
||||
} else if (*table_ptr == '\n') {
|
||||
/* Check for terminating line */
|
||||
if (term_count == 5) {
|
||||
return;
|
||||
@ -113,7 +113,9 @@ static void read_base64(FILE *src_stream, FILE *dst_stream)
|
||||
}
|
||||
|
||||
/* Merge 6 bit chars to 8 bit */
|
||||
fputc(translated[0] << 2 | translated[1] >> 4, dst_stream);
|
||||
if (count > 1) {
|
||||
fputc(translated[0] << 2 | translated[1] >> 4, dst_stream);
|
||||
}
|
||||
if (count > 2) {
|
||||
fputc(translated[1] << 4 | translated[2] >> 2, dst_stream);
|
||||
}
|
||||
@ -126,19 +128,16 @@ static void read_base64(FILE *src_stream, FILE *dst_stream)
|
||||
int uudecode_main(int argc, char **argv);
|
||||
int uudecode_main(int argc, char **argv)
|
||||
{
|
||||
FILE *src_stream;
|
||||
FILE *src_stream = stdin;
|
||||
char *outname = NULL;
|
||||
char *line;
|
||||
|
||||
opt_complementary = "?1"; /* 1 argument max */
|
||||
getopt32(argc, argv, "o:", &outname);
|
||||
argv += optind;
|
||||
|
||||
if (optind == argc) {
|
||||
src_stream = stdin;
|
||||
} else if (optind + 1 == argc) {
|
||||
src_stream = xfopen(argv[optind], "r");
|
||||
} else {
|
||||
bb_show_usage();
|
||||
}
|
||||
if (argv[0])
|
||||
src_stream = xfopen(argv[0], "r");
|
||||
|
||||
/* Search for the start of the encoding */
|
||||
while ((line = xmalloc_getline(src_stream)) != NULL) {
|
||||
@ -158,6 +157,7 @@ int uudecode_main(int argc, char **argv)
|
||||
continue;
|
||||
}
|
||||
|
||||
/* begin line found. decode and exit */
|
||||
mode = strtoul(line_ptr, NULL, 8);
|
||||
if (outname == NULL) {
|
||||
outname = strchr(line_ptr, ' ');
|
||||
@ -166,16 +166,48 @@ int uudecode_main(int argc, char **argv)
|
||||
}
|
||||
outname++;
|
||||
}
|
||||
if (LONE_DASH(outname)) {
|
||||
dst_stream = stdout;
|
||||
} else {
|
||||
dst_stream = stdout;
|
||||
if (NOT_LONE_DASH(outname)) {
|
||||
dst_stream = xfopen(outname, "w");
|
||||
chmod(outname, mode & (S_IRWXU | S_IRWXG | S_IRWXO));
|
||||
}
|
||||
free(line);
|
||||
decode_fn_ptr(src_stream, dst_stream);
|
||||
fclose_if_not_stdin(src_stream);
|
||||
/* fclose_if_not_stdin(src_stream); - redundant */
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
bb_error_msg_and_die("no 'begin' line");
|
||||
}
|
||||
|
||||
/* 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: $?
|
||||
done
|
||||
*/
|
||||
|
||||
@ -28,7 +28,7 @@ int uuencode_main(int argc, char **argv)
|
||||
RESERVE_CONFIG_BUFFER(dst_buf, DST_BUF_SIZE + 1);
|
||||
|
||||
tbl = bb_uuenc_tbl_std;
|
||||
if (getopt32(argc, argv, "m") & 1) {
|
||||
if (getopt32(argc, argv, "m")) {
|
||||
tbl = bb_uuenc_tbl_base64;
|
||||
}
|
||||
|
||||
@ -37,9 +37,6 @@ int uuencode_main(int argc, char **argv)
|
||||
src_stream = xfopen(argv[optind], "r");
|
||||
xstat(argv[optind], &stat_buf);
|
||||
mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
|
||||
if (src_stream == stdout) {
|
||||
puts("NULL");
|
||||
}
|
||||
break;
|
||||
case 1:
|
||||
mode = 0666 & ~umask(0666);
|
||||
|
||||
@ -3664,20 +3664,19 @@ USE_FEATURE_RUN_PARTS_FANCY("\n -l Prints names of all matching files even when
|
||||
"[pauses for 1 second]\n"
|
||||
|
||||
#define uudecode_trivial_usage \
|
||||
"[FILE]..."
|
||||
"[-o outfile] [infile]"
|
||||
#define uudecode_full_usage \
|
||||
"Uudecode a file" \
|
||||
"\n\nOptions:\n" \
|
||||
" -o FILE Direct output to FILE"
|
||||
"Uudecode a file\n" \
|
||||
"NB: finds outfile name in uuencoded source unless -o is given"
|
||||
#define uudecode_example_usage \
|
||||
"$ uudecode -o busybox busybox.uu\n" \
|
||||
"$ ls -l busybox\n" \
|
||||
"-rwxr-xr-x 1 ams ams 245264 Jun 7 21:35 busybox\n"
|
||||
|
||||
#define uuencode_trivial_usage \
|
||||
"[OPTION] [INFILE] REMOTEFILE"
|
||||
"[-m] [infile] stored_filename"
|
||||
#define uuencode_full_usage \
|
||||
"Uuencode a file" \
|
||||
"Uuencode a file to stdout" \
|
||||
"\n\nOptions:\n" \
|
||||
" -m Use base64 encoding per RFC1521"
|
||||
#define uuencode_example_usage \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user