mirror of
https://github.com/sheumann/hush.git
synced 2024-05-28 21:41:30 +00:00
- fix bug where we did not reject invalid classes like '[[:alpha'
- debloat while at it: text data bss dec hex filename 1554 0 19 1573 625 tr.o.oorig 1357 0 16 1373 55d tr.o
This commit is contained in:
Bernhard Reutner-Fischer
parent
52a9db6bb8
commit
eceecea568
163
coreutils/tr.c
163
coreutils/tr.c
|
|
@ -15,64 +15,61 @@
|
|||
*
|
||||
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
||||
*/
|
||||
|
||||
/* http://www.opengroup.org/onlinepubs/009695399/utilities/tr.html
|
||||
* TODO: xdigit, graph, print
|
||||
*/
|
||||
#include "busybox.h"
|
||||
|
||||
// Even with -funsigned-char, gcc still complains about char as an array index.
|
||||
|
||||
#define GCC4_IS_STUPID int
|
||||
|
||||
#define ASCII 0377
|
||||
|
||||
#define TR_OPT_complement (1<<0)
|
||||
#define TR_OPT_delete (1<<1)
|
||||
#define TR_OPT_squeeze_reps (1<<2)
|
||||
/* some "globals" shared across this file */
|
||||
static char com_fl, del_fl, sq_fl;
|
||||
/* these last are pointers to static buffers declared in tr_main */
|
||||
static char *poutput, *pvector, *pinvec, *poutvec;
|
||||
|
||||
static void convert(void)
|
||||
static void ATTRIBUTE_NORETURN convert(const smalluint flags)
|
||||
{
|
||||
int read_chars = 0, in_index = 0, out_index = 0, c, coded, last = -1;
|
||||
size_t read_chars = 0, in_index = 0, out_index = 0, c, coded, last = -1;
|
||||
|
||||
for (;;) {
|
||||
// If we're out of input, flush output and read more input.
|
||||
|
||||
/* If we're out of input, flush output and read more input. */
|
||||
if (in_index == read_chars) {
|
||||
if (out_index) {
|
||||
if (write(1, (char *) poutput, out_index) != out_index)
|
||||
bb_error_msg_and_die(bb_msg_write_error);
|
||||
xwrite(STDOUT_FILENO, (char *)poutput, out_index);
|
||||
out_index = 0;
|
||||
}
|
||||
|
||||
if ((read_chars = read(0, bb_common_bufsiz1, BUFSIZ)) <= 0) {
|
||||
if (write(1, (char *) poutput, out_index) != out_index)
|
||||
bb_error_msg(bb_msg_write_error);
|
||||
exit(0);
|
||||
if ((read_chars = read(STDIN_FILENO, bb_common_bufsiz1, BUFSIZ)) <= 0) {
|
||||
if (write(STDOUT_FILENO, (char *)poutput, out_index) != out_index)
|
||||
bb_perror_msg(bb_msg_write_error);
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
in_index = 0;
|
||||
}
|
||||
c = bb_common_bufsiz1[in_index++];
|
||||
coded = pvector[c];
|
||||
if (del_fl && pinvec[c])
|
||||
if ((flags & TR_OPT_delete) && pinvec[c])
|
||||
continue;
|
||||
if (sq_fl && last == coded && (pinvec[c] || poutvec[coded]))
|
||||
if ((flags & TR_OPT_squeeze_reps) && last == coded &&
|
||||
(pinvec[c] || poutvec[coded]))
|
||||
continue;
|
||||
poutput[out_index++] = last = coded;
|
||||
}
|
||||
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
static void map(char *string1, unsigned int string1_len,
|
||||
char *string2, unsigned int string2_len)
|
||||
static void map(unsigned char *string1, unsigned int string1_len,
|
||||
unsigned char *string2, unsigned int string2_len)
|
||||
{
|
||||
char last = '0';
|
||||
unsigned int i, j;
|
||||
|
||||
for (j = 0, i = 0; i < string1_len; i++) {
|
||||
if (string2_len <= j)
|
||||
pvector[(GCC4_IS_STUPID)string1[i]] = last;
|
||||
pvector[string1[i]] = last;
|
||||
else
|
||||
pvector[(GCC4_IS_STUPID)string1[i]] = last = string2[j++];
|
||||
pvector[string1[i]] = last = string2[j++];
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -84,15 +81,35 @@ static void map(char *string1, unsigned int string1_len,
|
|||
static unsigned int expand(const char *arg, char *buffer)
|
||||
{
|
||||
char *buffer_start = buffer;
|
||||
int i, ac;
|
||||
|
||||
unsigned i; /* XXX: FIXME: use unsigned char? */
|
||||
unsigned char ac;
|
||||
#if ENABLE_FEATURE_TR_CLASSES
|
||||
#define CLO ":]"
|
||||
const char * const classes[] = {
|
||||
"alpha"CLO, "alnum"CLO, "digit"CLO, "lower"CLO, "upper"CLO, "space"CLO,
|
||||
"blank"CLO, "punct"CLO, "cntrl"CLO, NULL
|
||||
};
|
||||
#define CLASS_invalid 0 /* we increment the retval */
|
||||
#define CLASS_alpha 1
|
||||
#define CLASS_alnum 2
|
||||
#define CLASS_digit 3
|
||||
#define CLASS_lower 4
|
||||
#define CLASS_upper 5
|
||||
#define CLASS_space 6
|
||||
#define CLASS_blank 7
|
||||
#define CLASS_punct 8
|
||||
#define CLASS_cntrl 9
|
||||
//#define CLASS_xdigit 10
|
||||
//#define CLASS_graph 11
|
||||
//#define CLASS_print 12
|
||||
#endif
|
||||
while (*arg) {
|
||||
if (*arg == '\\') {
|
||||
arg++;
|
||||
*buffer++ = bb_process_escape_sequence(&arg);
|
||||
} else if (*(arg+1) == '-') {
|
||||
ac = *(arg+2);
|
||||
if(ac == 0) {
|
||||
if (ac == 0) {
|
||||
*buffer++ = *arg++;
|
||||
continue;
|
||||
}
|
||||
|
|
@ -104,50 +121,42 @@ static unsigned int expand(const char *arg, char *buffer)
|
|||
arg++;
|
||||
i = *arg++;
|
||||
if (ENABLE_FEATURE_TR_CLASSES && i == ':') {
|
||||
if (strncmp(arg, "alpha", 5) == 0) {
|
||||
for (i = 'A'; i <= 'Z'; i++)
|
||||
*buffer++ = i;
|
||||
for (i = 'a'; i <= 'z'; i++)
|
||||
*buffer++ = i;
|
||||
smalluint j;
|
||||
{ /* not really pretty.. */
|
||||
char *tmp = xstrndup(arg, 7); // warning: xdigit needs 8, not 7
|
||||
j = index_in_str_array(classes, tmp) + 1;
|
||||
free(tmp);
|
||||
}
|
||||
else if (strncmp(arg, "alnum", 5) == 0) {
|
||||
if (j == CLASS_alnum || j == CLASS_digit) {
|
||||
for (i = '0'; i <= '9'; i++)
|
||||
*buffer++ = i;
|
||||
}
|
||||
if (j == CLASS_alpha || j == CLASS_alnum || j == CLASS_upper) {
|
||||
for (i = 'A'; i <= 'Z'; i++)
|
||||
*buffer++ = i;
|
||||
}
|
||||
if (j == CLASS_alpha || j == CLASS_alnum || j == CLASS_lower) {
|
||||
for (i = 'a'; i <= 'z'; i++)
|
||||
*buffer++ = i;
|
||||
}
|
||||
else if (strncmp(arg, "digit", 5) == 0)
|
||||
for (i = '0'; i <= '9'; i++)
|
||||
*buffer++ = i;
|
||||
else if (strncmp(arg, "lower", 5) == 0)
|
||||
for (i = 'a'; i <= 'z'; i++)
|
||||
*buffer++ = i;
|
||||
else if (strncmp(arg, "upper", 5) == 0)
|
||||
for (i = 'A'; i <= 'Z'; i++)
|
||||
*buffer++ = i;
|
||||
else if (strncmp(arg, "space", 5) == 0) {
|
||||
const char s[] = "\t\n\v\f\r ";
|
||||
strcat((char*)buffer, s);
|
||||
buffer += sizeof(s) - 1;
|
||||
}
|
||||
else if (strncmp(arg, "blank", 5) == 0) {
|
||||
if (j == CLASS_space || j == CLASS_blank) {
|
||||
*buffer++ = '\t';
|
||||
if (j == CLASS_space) {
|
||||
*buffer++ = '\n';
|
||||
*buffer++ = '\v';
|
||||
*buffer++ = '\f';
|
||||
*buffer++ = '\r';
|
||||
}
|
||||
*buffer++ = ' ';
|
||||
}
|
||||
/* gcc gives a warning if braces aren't used here */
|
||||
else if (strncmp(arg, "punct", 5) == 0) {
|
||||
if (j == CLASS_punct || j == CLASS_cntrl) {
|
||||
for (i = 0; i <= ASCII; i++)
|
||||
if (isprint(i) && (!isalnum(i)) && (!isspace(i)))
|
||||
if ((j == CLASS_punct &&
|
||||
isprint(i) && (!isalnum(i)) && (!isspace(i))) ||
|
||||
(j == CLASS_cntrl && iscntrl(i)))
|
||||
*buffer++ = i;
|
||||
}
|
||||
else if (strncmp(arg, "cntrl", 5) == 0) {
|
||||
for (i = 0; i <= ASCII; i++)
|
||||
if (iscntrl(i))
|
||||
*buffer++ = i;
|
||||
}
|
||||
else {
|
||||
if (j == CLASS_invalid) {
|
||||
*buffer++ = '[';
|
||||
*buffer++ = ':';
|
||||
continue;
|
||||
|
|
@ -156,8 +165,7 @@ static unsigned int expand(const char *arg, char *buffer)
|
|||
}
|
||||
if (ENABLE_FEATURE_TR_EQUIV && i == '=') {
|
||||
*buffer++ = *arg;
|
||||
/* skip the closing =] */
|
||||
arg += 3;
|
||||
arg += 3; /* Skip the closing =] */
|
||||
continue;
|
||||
}
|
||||
if (*arg++ != '-') {
|
||||
|
|
@ -168,11 +176,10 @@ static unsigned int expand(const char *arg, char *buffer)
|
|||
ac = *arg++;
|
||||
while (i <= ac)
|
||||
*buffer++ = i++;
|
||||
arg++; /* Skip the assumed ']' */
|
||||
arg++; /* Skip the assumed ']' */
|
||||
} else
|
||||
*buffer++ = *arg++;
|
||||
}
|
||||
|
||||
return (buffer - buffer_start);
|
||||
}
|
||||
|
||||
|
|
@ -197,10 +204,11 @@ int tr_main(int argc, char **argv);
|
|||
int tr_main(int argc, char **argv)
|
||||
{
|
||||
unsigned char *ptr;
|
||||
int output_length=0, input_length;
|
||||
int output_length = 0, input_length;
|
||||
int idx = 1;
|
||||
int i;
|
||||
RESERVE_CONFIG_BUFFER(output, BUFSIZ);
|
||||
smalluint flags = 0;
|
||||
RESERVE_CONFIG_UBUFFER(output, BUFSIZ);
|
||||
RESERVE_CONFIG_BUFFER(vector, ASCII+1);
|
||||
RESERVE_CONFIG_BUFFER(invec, ASCII+1);
|
||||
RESERVE_CONFIG_BUFFER(outvec, ASCII+1);
|
||||
|
|
@ -213,19 +221,14 @@ int tr_main(int argc, char **argv)
|
|||
|
||||
if (argc > 1 && argv[idx][0] == '-') {
|
||||
for (ptr = (unsigned char *) &argv[idx][1]; *ptr; ptr++) {
|
||||
switch (*ptr) {
|
||||
case 'c':
|
||||
com_fl = TRUE;
|
||||
break;
|
||||
case 'd':
|
||||
del_fl = TRUE;
|
||||
break;
|
||||
case 's':
|
||||
sq_fl = TRUE;
|
||||
break;
|
||||
default:
|
||||
if (*ptr == 'c')
|
||||
flags |= TR_OPT_complement;
|
||||
else if (*ptr == 'd')
|
||||
flags |= TR_OPT_delete;
|
||||
else if (*ptr == 's')
|
||||
flags |= TR_OPT_squeeze_reps;
|
||||
else
|
||||
bb_show_usage();
|
||||
}
|
||||
}
|
||||
idx++;
|
||||
}
|
||||
|
|
@ -236,7 +239,7 @@ int tr_main(int argc, char **argv)
|
|||
|
||||
if (argv[idx] != NULL) {
|
||||
input_length = expand(argv[idx++], bb_common_bufsiz1);
|
||||
if (com_fl)
|
||||
if (flags & TR_OPT_complement)
|
||||
input_length = complement(bb_common_bufsiz1, input_length);
|
||||
if (argv[idx] != NULL) {
|
||||
if (*argv[idx] == '\0')
|
||||
|
|
@ -245,10 +248,10 @@ int tr_main(int argc, char **argv)
|
|||
map(bb_common_bufsiz1, input_length, output, output_length);
|
||||
}
|
||||
for (i = 0; i < input_length; i++)
|
||||
invec[(GCC4_IS_STUPID)bb_common_bufsiz1[i]] = TRUE;
|
||||
invec[(unsigned char)bb_common_bufsiz1[i]] = TRUE;
|
||||
for (i = 0; i < output_length; i++)
|
||||
outvec[(GCC4_IS_STUPID)output[i]] = TRUE;
|
||||
outvec[output[i]] = TRUE;
|
||||
}
|
||||
convert();
|
||||
return 0;
|
||||
convert(flags);
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -25,12 +25,11 @@ int index_in_substr_array(const char * const string_array[], const char *key)
|
|||
{
|
||||
int i;
|
||||
int len = strlen(key);
|
||||
if (!len)
|
||||
return -1;
|
||||
|
||||
for (i = 0; string_array[i] != 0; i++) {
|
||||
if (strncmp(string_array[i], key, len) == 0) {
|
||||
return i;
|
||||
if (len) {
|
||||
for (i = 0; string_array[i] != 0; i++) {
|
||||
if (strncmp(string_array[i], key, len) == 0) {
|
||||
return i;
|
||||
}
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
|
|
|
|||
4
testsuite/tr/tr-d-alnum-works
Normal file
4
testsuite/tr/tr-d-alnum-works
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
echo testing | tr -d '[[:alnum:]]' > logfile.gnu
|
||||
echo testing | busybox tr -d '[[:alnum:]]' > logfile.bb
|
||||
|
||||
diff -u logfile.gnu logfile.bb
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
echo testing | tr -d aeiou > logfile.gnu
|
||||
echo testing | busybox tr -d aeiou > logfile.bb
|
||||
|
||||
cmp logfile.gnu logfile.bb
|
||||
diff -u logfile.gnu logfile.bb
|
||||
|
|
|
|||
19
testsuite/tr/tr-rejects-wrong-class
Normal file
19
testsuite/tr/tr-rejects-wrong-class
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
echo t12esting | tr -d '[[:alpha:]]' > logfile.gnu
|
||||
echo t12esting | tr -d '[:alpha:]' >> logfile.gnu
|
||||
echo t12esting | tr -d '[[:alpha:]' >> logfile.gnu
|
||||
echo t12esting | tr -d '[[:alpha:' >> logfile.gnu
|
||||
echo t12esting | tr -d '[[:alpha' >> logfile.gnu
|
||||
echo t12esting | tr -d '[:alpha:]' >> logfile.gnu
|
||||
echo t12esting | tr -d '[:alpha:' >> logfile.gnu
|
||||
echo t12esting | tr -d '[:alpha' >> logfile.gnu
|
||||
|
||||
echo t12esting | busybox tr -d '[[:alpha:]]' > logfile.bb
|
||||
echo t12esting | busybox tr -d '[:alpha:]' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[[:alpha:]' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[[:alpha:' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[[:alpha' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[:alpha:]' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[:alpha:' >> logfile.bb
|
||||
echo t12esting | busybox tr -d '[:alpha' >> logfile.bb
|
||||
|
||||
diff -u logfile.gnu logfile.bb
|
||||
|
|
@ -17,8 +17,10 @@ tr_test ()
|
|||
run_tr " " '[:blank:]' 12
|
||||
run_tr 'a b' '[= =]' X
|
||||
run_tr "[:" '[:' ab
|
||||
run_tr " .,:" '[:punct:]' 12
|
||||
run_tr " .,:" '[:cntrl:]' 12
|
||||
}
|
||||
|
||||
bb= tr_test > logfile.gnu
|
||||
bb=busybox tr_test > logfile.bb
|
||||
cmp logfile.gnu logfile.bb
|
||||
diff -u logfile.gnu logfile.bb
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user