New upstream version 6.9.5upstream/6.9.5

1 files changed, 499 insertions, 0 deletions

diff --git a/harnesses/base.c b/harnesses/base.c
new file mode 100644
index 0000000..a88e6f2
--- /dev/null
+++ b/harnesses/base.c
@@ -0,0 +1,499 @@
+/*
+ * base.c  contributed by Mark Griffin
+ * Copyright (c) 2019-2020  K.Kosako
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <time.h>
+
+#include "oniguruma.h"
+
+#define PARSE_DEPTH_LIMIT           8
+#define RETRY_LIMIT              5000
+#define CALL_MAX_NEST_LEVEL         8
+//#define EXEC_PRINT_INTERVAL    500000
+//#define DUMP_DATA_INTERVAL     100000
+//#define STAT_PATH              "fuzzer.stat_log"
+
+typedef unsigned char uint8_t;
+
+#ifdef DUMP_INPUT
+static void
+dump_input(unsigned char* data, size_t len)
+{
+  static FILE* DumpFp;
+  static char end[] = { 'E', 'N', 'D' };
+
+  if (DumpFp == 0)
+    DumpFp = fopen("dump-input", "w");
+
+  fseek(DumpFp, 0, SEEK_SET);
+  fwrite(data, sizeof(unsigned char), len, DumpFp);
+  fwrite(end,  sizeof(char), sizeof(end), DumpFp);
+  fflush(DumpFp);
+}
+#endif
+
+#ifdef DUMP_DATA_INTERVAL
+static void
+dump_file(char* path, unsigned char* data, size_t len)
+{
+  FILE* fp;
+
+  fp = fopen(path, "w");
+  fwrite(data, sizeof(unsigned char), len, fp);
+  fclose(fp);
+}
+#endif
+
+#ifdef STANDALONE
+#include <ctype.h>
+
+static void
+dump_data(FILE* fp, unsigned char* data, int len)
+{
+  int i;
+
+  fprintf(fp, "{\n");
+  for (i = 0; i < len; i++) {
+    unsigned char c = data[i];
+
+    if (isprint((int )c)) {
+      if (c == '\\')
+        fprintf(fp, " '\\\\'");
+      else
+        fprintf(fp, " '%c'", c);
+    }
+    else {
+      fprintf(fp, "0x%02x", (int )c);
+    }
+
+    if (i == len - 1) {
+      fprintf(fp, "\n");
+    }
+    else {
+      if (i % 8 == 7)
+        fprintf(fp, ",\n");
+      else
+        fprintf(fp, ", ");
+    }
+  }
+  fprintf(fp, "};\n");
+}
+
+#else
+
+static void
+output_current_time(FILE* fp)
+{
+  char d[64];
+  time_t t;
+
+  t = time(NULL);
+  strftime(d, sizeof(d), "%m/%d %H:%M:%S", localtime(&t));
+
+  fprintf(fp, "%s", d);
+}
+
+#endif
+
+static int
+search(regex_t* reg, unsigned char* str, unsigned char* end, int backward)
+{
+  int r;
+  unsigned char *start, *range;
+  OnigRegion *region;
+
+  region = onig_region_new();
+
+  if (backward != 0) {
+    start = end;
+    range = str;
+  }
+  else {
+    start = str;
+    range = end;
+  }
+
+  r = onig_search(reg, str, end, start, range, region, ONIG_OPTION_NONE);
+  if (r >= 0) {
+#ifdef STANDALONE
+    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]);
+    }
+#endif
+  }
+  else if (r == ONIG_MISMATCH) {
+#ifdef STANDALONE
+    fprintf(stdout, "search fail (%s)\n",
+            ONIGENC_NAME(onig_get_encoding(reg)));
+#endif
+  }
+  else { /* error */
+#ifdef STANDALONE
+    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)));
+#endif
+    onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+
+    if (r == ONIGERR_STACK_BUG ||
+        r == ONIGERR_UNDEFINED_BYTECODE ||
+        r == ONIGERR_UNEXPECTED_BYTECODE)
+      return -2;
+
+    return -1;
+  }
+
+  onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
+  return 0;
+}
+
+static long INPUT_COUNT;
+static long EXEC_COUNT;
+static long EXEC_COUNT_INTERVAL;
+static long REGEX_SUCCESS_COUNT;
+static long VALID_STRING_COUNT;
+
+static int
+exec(OnigEncoding enc, OnigOptionType options, OnigSyntaxType* syntax,
+     char* apattern, char* apattern_end, char* astr, UChar* end, int backward)
+{
+  int r;
+  regex_t* reg;
+  OnigErrorInfo einfo;
+  UChar* pattern = (UChar* )apattern;
+  UChar* str     = (UChar* )astr;
+  UChar* pattern_end = (UChar* )apattern_end;
+
+  EXEC_COUNT++;
+  EXEC_COUNT_INTERVAL++;
+
+  onig_initialize(&enc, 1);
+  onig_set_retry_limit_in_search(RETRY_LIMIT);
+#ifdef PARSE_DEPTH_LIMIT
+  onig_set_parse_depth_limit(PARSE_DEPTH_LIMIT);
+#endif
+  onig_set_subexp_call_max_nest_level(CALL_MAX_NEST_LEVEL);
+
+  r = onig_new(&reg, pattern, pattern_end,
+               options, enc, syntax, &einfo);
+  if (r != ONIG_NORMAL) {
+    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
+    onig_error_code_to_str((UChar* )s, r, &einfo);
+#ifdef STANDALONE
+    fprintf(stdout, "ERROR: %s\n", s);
+#endif
+    onig_end();
+
+    if (r == ONIGERR_PARSER_BUG ||
+        r == ONIGERR_STACK_BUG  ||
+        r == ONIGERR_UNDEFINED_BYTECODE ||
+        r == ONIGERR_UNEXPECTED_BYTECODE) {
+      return -2;
+    }
+    else
+      return -1;
+  }
+  REGEX_SUCCESS_COUNT++;
+
+  r = search(reg, pattern, pattern_end, backward);
+  if (r == -2) return -2;
+
+  if (onigenc_is_valid_mbc_string(enc, str, end) != 0) {
+    VALID_STRING_COUNT++;
+    r = search(reg, str, end, backward);
+    if (r == -2) return -2;
+  }
+
+  onig_free(reg);
+  onig_end();
+  return 0;
+}
+
+static int
+alloc_exec(OnigEncoding enc, OnigOptionType options, OnigSyntaxType* syntax,
+           int backward, int pattern_size, size_t remaining_size, unsigned char *data)
+{
+  int r;
+  unsigned char *pattern_end;
+  unsigned char *str_null_end;
+
+  // copy first PATTERN_SIZE bytes off to be the pattern
+  unsigned char *pattern = (unsigned char *)malloc(pattern_size != 0 ? pattern_size : 1);
+  memcpy(pattern, data, pattern_size);
+  pattern_end = pattern + pattern_size;
+  data += pattern_size;
+  remaining_size -= pattern_size;
+
+#if defined(UTF16_BE) || defined(UTF16_LE)
+  if (remaining_size % 2 == 1) remaining_size--;
+#endif
+
+  unsigned char *str = (unsigned char*)malloc(remaining_size != 0 ? remaining_size : 1);
+  memcpy(str, data, remaining_size);
+  str_null_end = str + remaining_size;
+
+  r = exec(enc, options, syntax,
+           (char *)pattern, (char *)pattern_end,
+           (char *)str, str_null_end, backward);
+
+  free(pattern);
+  free(str);
+  return r;
+}
+
+#define OPTIONS_MASK  (ONIG_OPTION_IGNORECASE | ONIG_OPTION_EXTEND | ONIG_OPTION_MULTILINE | ONIG_OPTION_SINGLELINE | ONIG_OPTION_FIND_LONGEST | ONIG_OPTION_FIND_NOT_EMPTY | ONIG_OPTION_NEGATE_SINGLELINE | ONIG_OPTION_DONT_CAPTURE_GROUP | ONIG_OPTION_CAPTURE_GROUP)
+
+
+#ifdef SYNTAX_TEST
+#define NUM_CONTROL_BYTES      6
+#else
+#define NUM_CONTROL_BYTES      5
+#endif
+
+int LLVMFuzzerTestOneInput(const uint8_t * Data, size_t Size)
+{
+#if !defined(UTF16_BE) && !defined(UTF16_LE)
+  static OnigEncoding encodings[] = {
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_ASCII,
+    ONIG_ENCODING_EUC_JP,
+    ONIG_ENCODING_EUC_TW,
+    ONIG_ENCODING_EUC_KR,
+    ONIG_ENCODING_EUC_CN,
+    ONIG_ENCODING_SJIS,
+    ONIG_ENCODING_KOI8_R,
+    ONIG_ENCODING_CP1251,
+    ONIG_ENCODING_BIG5,
+    ONIG_ENCODING_GB18030,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    ONIG_ENCODING_UTF8,
+    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
+  };
+  unsigned char encoding_choice;
+#endif
+
+#ifdef SYNTAX_TEST
+  static 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_ONIGURUMA
+  };
+
+#ifdef STANDALONE
+  static char* syntax_names[] = {
+    "Posix Extended",
+    "Emacs",
+    "Grep",
+    "GNU Regex",
+    "Java",
+    "Perl+NG",
+    "Oniguruma"
+  };
+#endif
+
+  unsigned char syntax_choice;
+#endif
+
+  int r;
+  int backward;
+  int pattern_size;
+  size_t remaining_size;
+  unsigned char *data;
+  unsigned char pattern_size_choice;
+  OnigOptionType  options;
+  OnigEncoding    enc;
+  OnigSyntaxType* syntax;
+
+#ifndef STANDALONE
+  static FILE* STAT_FP;
+#endif
+
+  INPUT_COUNT++;
+
+#ifdef DUMP_DATA_INTERVAL
+  if (INPUT_COUNT % DUMP_DATA_INTERVAL == 0) {
+    char path[20];
+    sprintf(path, "dump-%ld", INPUT_COUNT);
+    dump_file(path, (unsigned char* )Data, Size);
+  }
+#endif
+
+  if (Size < NUM_CONTROL_BYTES) return 0;
+
+  remaining_size = Size;
+  data = (unsigned char* )(Data);
+
+#ifdef UTF16_BE
+  enc = ONIG_ENCODING_UTF16_BE;
+#else
+#ifdef UTF16_LE
+  enc = ONIG_ENCODING_UTF16_LE;
+#else
+  encoding_choice = data[0];
+  data++;
+  remaining_size--;
+
+  int num_encodings = sizeof(encodings)/sizeof(encodings[0]);
+  enc = encodings[encoding_choice % num_encodings];
+#endif
+#endif
+
+#ifdef SYNTAX_TEST
+  syntax_choice = data[0];
+  data++;
+  remaining_size--;
+
+  int num_syntaxes = sizeof(syntaxes)/sizeof(syntaxes[0]);
+  syntax = syntaxes[syntax_choice % num_syntaxes];
+#else
+  syntax = ONIG_SYNTAX_DEFAULT;
+#endif
+
+  if ((data[1] & 0xc0) == 0)
+    options = (data[0] | (data[1] << 8)) & OPTIONS_MASK;
+  else
+    options = data[0] & ONIG_OPTION_IGNORECASE;
+
+  data++;
+  remaining_size--;
+  data++;
+  remaining_size--;
+
+  pattern_size_choice = data[0];
+  data++;
+  remaining_size--;
+
+  backward = (data[0] == 0xbb);
+  data++;
+  remaining_size--;
+
+  if (remaining_size == 0)
+    pattern_size = 0;
+  else {
+    pattern_size = (int )pattern_size_choice % remaining_size;
+#if defined(UTF16_BE) || defined(UTF16_LE)
+    if (pattern_size % 2 == 1) pattern_size--;
+#endif
+  }
+
+#ifdef STANDALONE
+  dump_data(stdout, data, pattern_size);
+#ifdef SYNTAX_TEST
+  fprintf(stdout,
+          "enc: %s, syntax: %s, options: %u, pattern_size: %d, back:%d\n",
+          ONIGENC_NAME(enc),
+          syntax_names[syntax_choice % num_syntaxes],
+          options,
+          pattern_size, backward);
+#else
+  fprintf(stdout, "enc: %s, options: %u, pattern_size: %d, back:%d\n",
+          ONIGENC_NAME(enc), options, pattern_size, backward);
+#endif
+#endif
+
+#ifdef DUMP_INPUT
+  dump_input((unsigned char* )Data, Size);
+#endif
+
+  r = alloc_exec(enc, options, syntax, backward, pattern_size,
+                 remaining_size, data);
+  if (r == -2) exit(-2);
+
+#ifndef STANDALONE
+#ifdef EXEC_PRINT_INTERVAL
+  if (EXEC_COUNT_INTERVAL == EXEC_PRINT_INTERVAL) {
+    float fexec, freg, fvalid;
+
+    if (STAT_FP == 0) {
+#ifdef STAT_PATH
+      STAT_FP = fopen(STAT_PATH, "a");
+#else
+      STAT_FP = stdout;
+#endif
+    }
+
+    output_current_time(STAT_FP);
+
+    if (INPUT_COUNT != 0) { // overflow check
+      fexec  = (float )EXEC_COUNT / INPUT_COUNT;
+      freg   = (float )REGEX_SUCCESS_COUNT / INPUT_COUNT;
+      fvalid = (float )VALID_STRING_COUNT / INPUT_COUNT;
+
+      fprintf(STAT_FP, ": %ld: EXEC:%.2f, REG:%.2f, VALID:%.2f\n",
+              EXEC_COUNT, fexec, freg, fvalid);
+      fflush(STAT_FP);
+    }
+    else {
+      fprintf(STAT_FP, ": ignore (input count overflow)\n");
+    }
+
+    EXEC_COUNT_INTERVAL = 0;
+  }
+  else if (EXEC_COUNT == 1) {
+    output_current_time(stdout);
+    fprintf(stdout, ": ------------ START ------------\n");
+  }
+#endif
+#endif
+
+  return r;
+}
+
+#ifdef STANDALONE
+
+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 /* STANDALONE */