Merge branch 'feature/upstream' into develop

5 files changed, 712 insertions, 0 deletions

diff --git a/harnesses/ascii_compatible.dict b/harnesses/ascii_compatible.dict
new file mode 100644
index 0000000..820bf47
--- /dev/null
+++ b/harnesses/ascii_compatible.dict
@@ -0,0 +1,111 @@
+# First-pass fuzzing dictionary for Oniguruma by Mark Griffin
+"\\o{17777777777}"
+"\\777"
+"\\u"
+"\\uFFFF"
+"\\xFF"
+"\\x{70000000}"
+"\\C-"
+"\\M-\\C-"
+"\\X"
+"\\p{"
+"\\p{^"
+"}"
+"]"
+")"
+"\\n"
+"\\r"
+"\\R"
+"\\W"
+"\\w"
+"\\s"
+"\\S"
+"\\d"
+"\\O"
+"\\X"
+"\\b"
+"\\y"
+"\\Y"
+"\\A"
+"\\z"
+"\\K"
+"\\G"
+"\\p{Print}"
+"\\p{ASCII}"
+"\\p{Alnum}"
+"{0,2}"
+"{3,}"
+"{,3}"
+"{5}"
+"{4,2}"
+"??"
+"*?"
+"+?"
+"*+"
+"{1,3}+"
+"(?>"
+"\\B"
+"(?y{"
+"[abcd1-9]"
+"[\\w\\d"
+"[\\p{Alphabetic}"
+"[\\P{Arabic}"
+"[\\x{ffff}"
+"[a-w&&"
+"[^"
+"[:graph:]"
+"[^:cntrl:]"
+"(?i:"
+"(?i)"
+"(?m:"
+"(?x:"
+"(?W:"
+"(?y-:"
+"(?y{w}:"
+"(?P:"
+"(?#"
+"(?:"
+"(?="
+"(?!"
+"(?<="
+"(?<!"
+"(?>"
+"(?<name>"
+"(?{"
+"(?{....}[x])"
+"(?{.}[x]>)"
+"(?{{{.}}})"
+"(?~"
+"(?~a)"
+"(?~|a|.*)"
+"(?~|(?:a|b))"
+"(?~|)"
+"(?(.) |.)"
+"(?('-n'))"
+"(?(n+0))"
+"(?(n+1))"
+"(?(n-1))"
+"(?(<name+0>))"
+"(?(<name+1>))"
+"(?(<name-1>))"
+"(*ERROR{-2000})"
+"(*COUNT[tag]{X})"
+"\\1"
+"\\2"
+"\\k<name>"
+"\\k<1>"
+"\\k<2>"
+"\\k<-1>"
+"\\k<-2>"
+"\\k<name+0>"
+"\\k<name+1>"
+"\\k<name-1>"
+"\\g<-1>"
+"\\g<name>"
+"name"
+"(?<name>a|b\\g<name>c)"
+"(?-i:\\g<name>)"
+"\\N{name}"
+"\\p{Hiragana}"
+"\\p{Katakana}"
+"\\p{Emoji}"
diff --git a/harnesses/deluxe-encode-harness.c b/harnesses/deluxe-encode-harness.c
new file mode 100644
index 0000000..e1f84a5
--- /dev/null
+++ b/harnesses/deluxe-encode-harness.c
@@ -0,0 +1,239 @@
+/*
+ * 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 int
+exec(OnigEncoding enc, OnigOptionType options,
+     char* apattern, char* apattern_end, char* astr, char* astr_end)
+{
+  int r;
+  regex_t* reg;
+  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(&enc, 1);
+  onig_set_retry_limit_in_match(DEFAULT_LIMIT);
+  onig_set_parse_depth_limit(DEFAULT_LIMIT);
+
+  r = onig_new(&reg, pattern, pattern_end,
+               options, enc, ONIG_SYNTAX_DEFAULT, &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;
+  }
+
+  r = search(reg, str, end);
+
+  onig_free(reg);
+  onig_end();
+  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(&reg, 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+4);
+  memset(pattern, 0, PATTERN_SIZE+4);
+  memcpy(pattern, data, PATTERN_SIZE);
+  pattern_end = pattern + PATTERN_SIZE;
+  data += PATTERN_SIZE;
+  remaining_size -= PATTERN_SIZE;
+
+  str = (unsigned char*)malloc(remaining_size+4);
+  memset(str, 0, remaining_size+4);
+  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 */
diff --git a/harnesses/dict_conv.py b/harnesses/dict_conv.py
new file mode 100644
index 0000000..f721293
--- /dev/null
+++ b/harnesses/dict_conv.py
@@ -0,0 +1,72 @@
+# -*- coding: utf-8 -*-
+# dict_conv.py  (Python3 script)
+
+import sys
+
+ENC_UTF16_BE = 1
+ENC_UTF16_LE = 2
+
+def add_char(enc, s, c):
+  if enc == ENC_UTF16_BE:
+    s += "\\x00"
+
+  s += c
+  if enc == ENC_UTF16_LE:
+    s += "\\x00"
+
+  return s
+
+def conv(enc, s):
+  n = len(s)
+  r = ""
+  i = 0
+  while i < n:
+    c = s[i]
+    if c == '\\':
+      c = s[i+1]
+      if c == '\\' or c == '"':
+        r = add_char(enc, r, "\\" + c)
+        i += 2
+        continue
+      else:
+        raise("Unknown escape {0}".format(s))
+
+    r = add_char(enc, r, c)
+    i += 1
+
+  return r
+
+def main(enc):
+  print("# This file was generated by dict_conv.py.")
+  for line in sys.stdin:
+    s = line.strip()
+    if s[0] == '#':
+      print(s)
+      continue
+
+    if s[0] == '"' and s[-1] == '"':
+      s = conv(enc, s[1:-1])
+      print("\"{0}\"".format(s))
+    else:
+      raise("Invalid format {0}".format(s))
+
+def usage(argv):
+  raise RuntimeError("Usage: python {0} utf16_be/utf16_le".format(argv[0]))
+
+
+if __name__ == "__main__":
+  argv = sys.argv
+  argc = len(argv)
+
+  if argc >= 2:
+    s = argv[1]
+    if s == 'utf16_be':
+      enc = ENC_UTF16_BE
+    elif s == 'utf16_le':
+      enc = ENC_UTF16_LE
+    else:
+      usage(argv)
+  else:
+    usage(argv)
+
+  main(enc)
diff --git a/harnesses/encode-harness.c b/harnesses/encode-harness.c
new file mode 100644
index 0000000..e57fd4f
--- /dev/null
+++ b/harnesses/encode-harness.c
@@ -0,0 +1,170 @@
+/*
+ * encode-harness.c
+ * contributed by Mark Griffin
+ */
+#include <stdio.h>
+#include "oniguruma.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#define PARSE_DEPTH_LIMIT   120
+#define RETRY_LIMIT        4000
+
+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 int
+exec(OnigEncoding enc, OnigOptionType options,
+     char* apattern, char* apattern_end, char* astr, UChar* end)
+{
+  int r;
+  regex_t* reg;
+  OnigErrorInfo einfo;
+  UChar* pattern = (UChar* )apattern;
+  UChar* str     = (UChar* )astr;
+  UChar* pattern_end = (UChar* )apattern_end;
+
+  onig_initialize(&enc, 1);
+  onig_set_retry_limit_in_match(RETRY_LIMIT);
+  onig_set_parse_depth_limit(PARSE_DEPTH_LIMIT);
+
+  r = onig_new(&reg, pattern, pattern_end,
+               options, enc, ONIG_SYNTAX_DEFAULT, &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(enc, str, end) != 0) {
+    r = search(reg, str, end);
+  }
+
+  onig_free(reg);
+  onig_end();
+  return 0;
+}
+
+#define PATTERN_SIZE 32
+#define NUM_CONTROL_BYTES 1
+#define MIN_STR_SIZE  1
+int LLVMFuzzerTestOneInput(const uint8_t * Data, size_t Size)
+{
+  if (Size <= (NUM_CONTROL_BYTES + PATTERN_SIZE + MIN_STR_SIZE))
+    return 0;
+  if (Size > 0x1000)
+    return 0;
+
+  unsigned char *pattern_end;
+  unsigned char *str_null_end;
+
+  size_t remaining_size = Size;
+  unsigned char *data = (unsigned char *)(Data);
+
+  // pull off one byte to switch off
+  unsigned char encoding_choice = data[0];
+  data++;
+  remaining_size--;
+
+  // copy first PATTERN_SIZE bytes off to be the pattern
+  unsigned char *pattern = (unsigned char *)malloc(PATTERN_SIZE+4);
+  memset(pattern, 0, PATTERN_SIZE+4);
+  memcpy(pattern, data, PATTERN_SIZE);
+  pattern_end = pattern + PATTERN_SIZE;
+  data += PATTERN_SIZE;
+  remaining_size -= PATTERN_SIZE;
+
+  unsigned char *str = (unsigned char*)malloc(remaining_size+4);
+  memset(str, 0, remaining_size+4);
+  memcpy(str, data, remaining_size);
+  str_null_end = str + remaining_size;
+
+  int r;
+  OnigEncodingType *encodings[] = {
+	  ONIG_ENCODING_SJIS,
+	  ONIG_ENCODING_EUC_JP,
+	  ONIG_ENCODING_CP1251,
+	  ONIG_ENCODING_ISO_8859_1,
+	  ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_KOI8_R,
+    ONIG_ENCODING_BIG5
+  };
+
+  OnigEncodingType *enc;
+
+#ifdef UTF16_BE
+  enc = ONIG_ENCODING_UTF16_BE;
+#else
+#ifdef UTF16_LE
+  enc = ONIG_ENCODING_UTF16_LE;
+#else
+  int num_encodings = sizeof(encodings)/sizeof(encodings[0]);
+  enc = encodings[encoding_choice % num_encodings];
+#endif
+#endif
+
+  r = exec(enc, ONIG_OPTION_NONE, (char *)pattern, (char *)pattern_end,
+           (char *)str, str_null_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 */
diff --git a/harnesses/syntax-harness.c b/harnesses/syntax-harness.c
new file mode 100644
index 0000000..0fb3587
--- /dev/null
+++ b/harnesses/syntax-harness.c
@@ -0,0 +1,120 @@
+/*
+ * syntax-harness.c
+ * contributed by Mark Griffin
+ */
+#include <stdio.h>
+#include <string.h>
+#include "oniguruma.h"
+
+#include <stdlib.h>
+
+#define DEFAULT_LIMIT 120
+typedef unsigned char uint8_t;
+
+extern int exec(OnigSyntaxType* syntax, char* apattern, char* astr)
+{
+  int r;
+  unsigned char *start, *range, *end;
+  regex_t* reg;
+  OnigErrorInfo einfo;
+  OnigRegion *region;
+  UChar* pattern = (UChar* )apattern;
+  UChar* str     = (UChar* )astr;
+
+  r = onig_new(&reg, pattern, pattern + strlen((char* )pattern),
+               ONIG_OPTION_DEFAULT, ONIG_ENCODING_ASCII, syntax, &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);
+    return -1;
+  }
+
+  region = onig_region_new();
+
+  end   = str + strlen((char* )str);
+  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\n", r);
+    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\n");
+  }
+  else { /* error */
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str((UChar* )s, r);
+    fprintf(stdout, "ERROR: %s\n", s);
+    onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+    onig_free(reg);
+    return -1;
+  }
+
+  onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+  onig_free(reg);
+  return 0;
+}
+
+#define PATTERN_SIZE 64
+#define NUM_CONTROL_BYTES 1
+#define MIN_STR_SIZE  1
+int LLVMFuzzerTestOneInput(const uint8_t * Data, size_t Size)
+{
+  if (Size <= (NUM_CONTROL_BYTES + PATTERN_SIZE + MIN_STR_SIZE))
+    return 0;
+  if (Size > 0x1000)
+    return 0;
+  size_t remaining_size = Size;
+  unsigned char *data = (unsigned char *)(Data);
+
+  // pull off one byte to switch syntax choice
+  unsigned char syntax_choice = data[0];
+  data++;
+  remaining_size--;
+
+  // copy first PATTERN_SIZE bytes off to be the pattern
+  unsigned char *pattern = (unsigned char *)malloc(PATTERN_SIZE+1);
+  memset(pattern, 0, PATTERN_SIZE+1);
+  memcpy(pattern, data, PATTERN_SIZE);
+  data += PATTERN_SIZE;
+  remaining_size -= PATTERN_SIZE;
+
+  unsigned char *str = (unsigned char*)malloc(remaining_size+1);
+  memset(str, 0, remaining_size+1);
+  memcpy(str, data, remaining_size);
+  
+  OnigEncoding use_encs[] = { ONIG_ENCODING_ASCII };
+  onig_initialize(use_encs, sizeof(use_encs)/sizeof(use_encs[0]));
+
+  onig_set_retry_limit_in_match(DEFAULT_LIMIT);
+  onig_set_parse_depth_limit(DEFAULT_LIMIT);
+
+  OnigSyntaxType *syntaxes[] = {
+    ONIG_SYNTAX_POSIX_EXTENDED,
+    ONIG_SYNTAX_EMACS,
+    ONIG_SYNTAX_GREP,
+    ONIG_SYNTAX_GNU_REGEX,
+    ONIG_SYNTAX_JAVA,
+    ONIG_SYNTAX_PERL_NG,
+    ONIG_SYNTAX_RUBY,
+    ONIG_SYNTAX_ONIGURUMA,
+  }; 
+  OnigSyntaxType *syntax = syntaxes[syntax_choice % 8];
+  
+  int r;
+  r = exec(syntax, (char *)pattern, (char *)str);
+  // r = exec(ONIG_SYNTAX_JAVA, "\\p{XDigit}\\P{XDigit}[a-c&&b-g]", "bgc");
+
+  onig_end();
+
+  free(pattern);
+  free(str);
+
+  return 0;
+}