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/*
* deluxe-encode-harness.c
* contributed by Mark Griffin
*/
#include <stdio.h>
#include "oniguruma.h"
#include <stdlib.h>
#include <string.h>
#define DEFAULT_LIMIT 120
typedef unsigned char uint8_t;
static int
search(regex_t* reg, unsigned char* str, unsigned char* end)
{
int r;
unsigned char *start, *range;
OnigRegion *region;
region = onig_region_new();
start = str;
range = end;
r = onig_search(reg, str, end, start, range, region, ONIG_OPTION_NONE);
if (r >= 0) {
int i;
fprintf(stdout, "match at %d (%s)\n", r,
ONIGENC_NAME(onig_get_encoding(reg)));
for (i = 0; i < region->num_regs; i++) {
fprintf(stdout, "%d: (%d-%d)\n", i, region->beg[i], region->end[i]);
}
}
else if (r == ONIG_MISMATCH) {
fprintf(stdout, "search fail (%s)\n",
ONIGENC_NAME(onig_get_encoding(reg)));
}
else { /* error */
char s[ONIG_MAX_ERROR_MESSAGE_LEN];
onig_error_code_to_str((UChar* )s, r);
fprintf(stdout, "ERROR: %s\n", s);
fprintf(stdout, " (%s)\n", ONIGENC_NAME(onig_get_encoding(reg)));
onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
return -1;
}
onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
return 0;
}
static OnigCaseFoldType CF = ONIGENC_CASE_FOLD_MIN;
static int
exec_deluxe(OnigEncoding pattern_enc, OnigEncoding str_enc,
OnigOptionType options, char* apattern, char* apattern_end,
char* astr, char* astr_end)
{
int r;
regex_t* reg;
OnigCompileInfo ci;
OnigErrorInfo einfo;
UChar* pattern = (UChar* )apattern;
UChar* str = (UChar* )astr;
UChar* pattern_end = (UChar* )apattern_end;
unsigned char* end = (unsigned char* )astr_end;
onig_initialize(&str_enc, 1);
onig_set_retry_limit_in_match(DEFAULT_LIMIT);
onig_set_parse_depth_limit(DEFAULT_LIMIT);
ci.num_of_elements = 5;
ci.pattern_enc = pattern_enc;
ci.target_enc = str_enc;
ci.syntax = ONIG_SYNTAX_DEFAULT;
ci.option = options;
ci.case_fold_flag = CF;
r = onig_new_deluxe(®, pattern, pattern_end, &ci, &einfo);
if (r != ONIG_NORMAL) {
char s[ONIG_MAX_ERROR_MESSAGE_LEN];
onig_error_code_to_str((UChar* )s, r, &einfo);
fprintf(stdout, "ERROR: %s\n", s);
onig_end();
return -1;
}
if (onigenc_is_valid_mbc_string(str_enc, str, end) != 0) {
r = search(reg, str, end);
}
onig_free(reg);
onig_end();
return 0;
}
#define PATTERN_SIZE 48
#define NUM_CONTROL_BYTES 1
#define MIN_STR_SIZE 2
int LLVMFuzzerTestOneInput(const uint8_t * Data, size_t Size)
{
int r;
size_t remaining_size;
unsigned char *data;
unsigned char pat_encoding_choice;
unsigned char str_encoding_choice;
unsigned char *pattern;
unsigned char *str;
unsigned char *pattern_end;
unsigned char *str_end;
unsigned int num_encodings;
OnigEncodingType *pattern_enc;
OnigEncodingType *str_enc;
OnigEncodingType *encodings[] = {
ONIG_ENCODING_ASCII,
ONIG_ENCODING_ISO_8859_1,
ONIG_ENCODING_ISO_8859_2,
ONIG_ENCODING_ISO_8859_3,
ONIG_ENCODING_ISO_8859_4,
ONIG_ENCODING_ISO_8859_5,
ONIG_ENCODING_ISO_8859_6,
ONIG_ENCODING_ISO_8859_7,
ONIG_ENCODING_ISO_8859_8,
ONIG_ENCODING_ISO_8859_9,
ONIG_ENCODING_ISO_8859_10,
ONIG_ENCODING_ISO_8859_11,
ONIG_ENCODING_ISO_8859_13,
ONIG_ENCODING_ISO_8859_14,
ONIG_ENCODING_ISO_8859_15,
ONIG_ENCODING_ISO_8859_16,
ONIG_ENCODING_UTF8,
ONIG_ENCODING_UTF16_BE,
ONIG_ENCODING_UTF16_LE,
ONIG_ENCODING_UTF32_BE,
ONIG_ENCODING_UTF32_LE,
ONIG_ENCODING_EUC_JP,
ONIG_ENCODING_EUC_TW,
ONIG_ENCODING_EUC_KR,
ONIG_ENCODING_EUC_CN,
ONIG_ENCODING_SJIS,
//ONIG_ENCODING_KOI8,
ONIG_ENCODING_KOI8_R,
ONIG_ENCODING_CP1251,
ONIG_ENCODING_BIG5,
ONIG_ENCODING_GB18030,
};
if (Size <= (NUM_CONTROL_BYTES + PATTERN_SIZE + MIN_STR_SIZE))
return 0;
if (Size > 0x1000)
return 0;
remaining_size = Size;
data = (unsigned char *)(Data);
// pull off bytes to switch off
pat_encoding_choice = data[0];
data++;
remaining_size--;
str_encoding_choice = data[0];
data++;
remaining_size--;
// copy first PATTERN_SIZE bytes off to be the pattern
pattern = (unsigned char *)malloc(PATTERN_SIZE);
memcpy(pattern, data, PATTERN_SIZE);
pattern_end = pattern + PATTERN_SIZE;
data += PATTERN_SIZE;
remaining_size -= PATTERN_SIZE;
str = (unsigned char*)malloc(remaining_size);
memcpy(str, data, remaining_size);
str_end = str + remaining_size;
num_encodings = sizeof(encodings) / sizeof(encodings[0]);
pattern_enc = encodings[pat_encoding_choice % num_encodings];
str_enc = encodings[str_encoding_choice % num_encodings];
r = exec_deluxe(pattern_enc, str_enc, ONIG_OPTION_NONE, (char *)pattern, (char *)pattern_end, (char *)str, (char *)str_end);
free(pattern);
free(str);
return r;
}
#ifdef WITH_READ_MAIN
#include <unistd.h>
extern int main(int argc, char* argv[])
{
size_t n;
uint8_t Data[10000];
n = read(0, Data, sizeof(Data));
fprintf(stdout, "n: %ld\n", n);
LLVMFuzzerTestOneInput(Data, n);
return 0;
}
#endif /* WITH_READ_MAIN */
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