From 0fdebf904da0db7fe3c3690f02cf84f8a6f981b6 Mon Sep 17 00:00:00 2001
From: Jens Steube <jens.steube@gmail.com>
Date: Sat, 26 Mar 2016 10:37:59 +0100
Subject: [PATCH] Replace BUFSIZ with HCBUFSIZ and move them from stack to heap

---
 include/common.h                        |   9 +-
 include/shared.h                        |   4 +-
 src/oclHashcat.c                        | 112 +++++++++++++++---------
 src/shared.c                            |  61 +++++++------
 tools/rules_test/cpu_rules.c            |   4 +-
 tools/rules_test/cpu_rules.h            |   2 +-
 tools/rules_test/kernel2cpu_rule_test.c |  16 ++--
 7 files changed, 123 insertions(+), 85 deletions(-)

diff --git a/include/common.h b/include/common.h
index 1b784a342..079d7d57a 100644
--- a/include/common.h
+++ b/include/common.h
@@ -101,13 +101,12 @@ typedef uint64_t u64;
 
 typedef uint32_t uint; // we need to get rid of this sooner or later, for consistency
 
-#define EXEC_CACHE   128
+#define EXEC_CACHE    128
 
-#define SPEED_CACHE  128
-#define SPEED_MAXAGE 4096
+#define SPEED_CACHE   128
+#define SPEED_MAXAGE  4096
 
-#undef  BUFSIZ
-#define BUFSIZ 8192
+#define HCBUFSIZ      0x10000 // general large space buffer size in case the size is unknown at compile-time
 
 /**
  * functions
diff --git a/include/shared.h b/include/shared.h
index 634e07fc1..0b24d77e2 100644
--- a/include/shared.h
+++ b/include/shared.h
@@ -1666,8 +1666,8 @@ int mangle_title              (char arr[BLOCK_SIZE], int arr_len);
 int generate_random_rule (char rule_buf[RP_RULE_BUFSIZ], u32 rp_gen_func_min, u32 rp_gen_func_max);
 int _old_apply_rule (char *rule, int rule_len, char in[BLOCK_SIZE], int in_len, char out[BLOCK_SIZE]);
 
-int cpu_rule_to_kernel_rule (char rule_buf[BUFSIZ], uint rule_len, kernel_rule_t *rule);
-int kernel_rule_to_cpu_rule (char rule_buf[BUFSIZ], kernel_rule_t *rule);
+int cpu_rule_to_kernel_rule (char *rule_buf, uint rule_len, kernel_rule_t *rule);
+int kernel_rule_to_cpu_rule (char *rule_buf, kernel_rule_t *rule);
 
 void *thread_device_watch (void *p);
 void *thread_keypress     (void *p);
diff --git a/src/oclHashcat.c b/src/oclHashcat.c
index 37e1a2b0e..363abd194 100644
--- a/src/oclHashcat.c
+++ b/src/oclHashcat.c
@@ -3067,6 +3067,8 @@ static void autotune (hc_device_param_t *device_param)
 
 static void run_cracker (hc_device_param_t *device_param, const uint pws_cnt)
 {
+  char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
   // init speed timer
 
   uint speed_pos = device_param->speed_pos;
@@ -3180,8 +3182,6 @@ static void run_cracker (hc_device_param_t *device_param, const uint pws_cnt)
 
       if (data.attack_mode == ATTACK_MODE_COMBI)
       {
-        char line_buf[BUFSIZ] = { 0 };
-
         uint i = 0;
 
         while (i < innerloop_left)
@@ -3388,6 +3388,8 @@ static void run_cracker (hc_device_param_t *device_param, const uint pws_cnt)
   }
 
   device_param->speed_pos = speed_pos;
+
+  myfree (line_buf);
 }
 
 static void load_segment (wl_data_t *wl_data, FILE *fd)
@@ -4104,11 +4106,11 @@ static void *thread_outfile_remove (void *p)
 
               fseek (fp, out_info[j].seek, SEEK_SET);
 
+              char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
               while (!feof (fp))
               {
-                char line_buf[BUFSIZ] = { 0 };
-
-                char *ptr = fgets (line_buf, BUFSIZ - 1, fp);
+                char *ptr = fgets (line_buf, HCBUFSIZ - 1, fp);
 
                 if (ptr == NULL) break;
 
@@ -4253,6 +4255,8 @@ static void *thread_outfile_remove (void *p)
                 if (data.devices_status == STATUS_CRACKED) break;
               }
 
+              myfree (line_buf);
+
               out_info[j].seek = ftell (fp);
 
               //hc_thread_mutex_unlock (mux_display);
@@ -4362,6 +4366,8 @@ static void *thread_calc_stdin (void *p)
 
   autotune (device_param);
 
+  char *buf = (char *) mymalloc (HCBUFSIZ);
+
   const uint attack_kern = data.attack_kern;
 
   const uint kernel_power = device_param->kernel_power;
@@ -4381,9 +4387,7 @@ static void *thread_calc_stdin (void *p)
 
     while (words_cur < kernel_power)
     {
-      char buf[BUFSIZ] = { 0 };
-
-      char *line_buf = fgets (buf, sizeof (buf), stdin);
+      char *line_buf = fgets (buf, HCBUFSIZ - 1, stdin);
 
       if (line_buf == NULL) break;
 
@@ -4494,6 +4498,8 @@ static void *thread_calc_stdin (void *p)
   device_param->kernel_accel = 0;
   device_param->kernel_loops = 0;
 
+  myfree (buf);
+
   return NULL;
 }
 
@@ -4874,7 +4880,7 @@ static void weak_hash_check (hc_device_param_t *device_param, const uint salt_po
 
 // hlfmt hashcat
 
-static void hlfmt_hash_hashcat (char line_buf[BUFSIZ], int line_len, char **hashbuf_pos, int *hashbuf_len)
+static void hlfmt_hash_hashcat (char *line_buf, int line_len, char **hashbuf_pos, int *hashbuf_len)
 {
   if (data.username == 0)
   {
@@ -4903,7 +4909,7 @@ static void hlfmt_hash_hashcat (char line_buf[BUFSIZ], int line_len, char **hash
   }
 }
 
-static void hlfmt_user_hashcat (char line_buf[BUFSIZ], int line_len, char **userbuf_pos, int *userbuf_len)
+static void hlfmt_user_hashcat (char *line_buf, int line_len, char **userbuf_pos, int *userbuf_len)
 {
   char *pos = NULL;
   int   len = 0;
@@ -4933,7 +4939,7 @@ static void hlfmt_user_hashcat (char line_buf[BUFSIZ], int line_len, char **user
 
 // hlfmt pwdump
 
-static int hlfmt_detect_pwdump (char line_buf[BUFSIZ], int line_len)
+static int hlfmt_detect_pwdump (char *line_buf, int line_len)
 {
   int sep_cnt = 0;
 
@@ -4958,7 +4964,7 @@ static int hlfmt_detect_pwdump (char line_buf[BUFSIZ], int line_len)
   return 0;
 }
 
-static void hlfmt_hash_pwdump (char line_buf[BUFSIZ], int line_len, char **hashbuf_pos, int *hashbuf_len)
+static void hlfmt_hash_pwdump (char *line_buf, int line_len, char **hashbuf_pos, int *hashbuf_len)
 {
   char *pos = NULL;
   int   len = 0;
@@ -4998,7 +5004,7 @@ static void hlfmt_hash_pwdump (char line_buf[BUFSIZ], int line_len, char **hashb
   *hashbuf_len = len;
 }
 
-static void hlfmt_user_pwdump (char line_buf[BUFSIZ], int line_len, char **userbuf_pos, int *userbuf_len)
+static void hlfmt_user_pwdump (char *line_buf, int line_len, char **userbuf_pos, int *userbuf_len)
 {
   char *pos = NULL;
   int   len = 0;
@@ -5028,7 +5034,7 @@ static void hlfmt_user_pwdump (char line_buf[BUFSIZ], int line_len, char **userb
 
 // hlfmt passwd
 
-static int hlfmt_detect_passwd (char line_buf[BUFSIZ], int line_len)
+static int hlfmt_detect_passwd (char *line_buf, int line_len)
 {
   int sep_cnt = 0;
 
@@ -5053,7 +5059,7 @@ static int hlfmt_detect_passwd (char line_buf[BUFSIZ], int line_len)
   return 0;
 }
 
-static void hlfmt_hash_passwd (char line_buf[BUFSIZ], int line_len, char **hashbuf_pos, int *hashbuf_len)
+static void hlfmt_hash_passwd (char *line_buf, int line_len, char **hashbuf_pos, int *hashbuf_len)
 {
   char *pos = NULL;
   int   len = 0;
@@ -5081,7 +5087,7 @@ static void hlfmt_hash_passwd (char line_buf[BUFSIZ], int line_len, char **hashb
   *hashbuf_len = len;
 }
 
-static void hlfmt_user_passwd (char line_buf[BUFSIZ], int line_len, char **userbuf_pos, int *userbuf_len)
+static void hlfmt_user_passwd (char *line_buf, int line_len, char **userbuf_pos, int *userbuf_len)
 {
   char *pos = NULL;
   int   len = 0;
@@ -5111,7 +5117,7 @@ static void hlfmt_user_passwd (char line_buf[BUFSIZ], int line_len, char **userb
 
 // hlfmt shadow
 
-static int hlfmt_detect_shadow (char line_buf[BUFSIZ], int line_len)
+static int hlfmt_detect_shadow (char *line_buf, int line_len)
 {
   int sep_cnt = 0;
 
@@ -5125,19 +5131,19 @@ static int hlfmt_detect_shadow (char line_buf[BUFSIZ], int line_len)
   return 0;
 }
 
-static void hlfmt_hash_shadow (char line_buf[BUFSIZ], int line_len, char **hashbuf_pos, int *hashbuf_len)
+static void hlfmt_hash_shadow (char *line_buf, int line_len, char **hashbuf_pos, int *hashbuf_len)
 {
   hlfmt_hash_passwd (line_buf, line_len, hashbuf_pos, hashbuf_len);
 }
 
-static void hlfmt_user_shadow (char line_buf[BUFSIZ], int line_len, char **userbuf_pos, int *userbuf_len)
+static void hlfmt_user_shadow (char *line_buf, int line_len, char **userbuf_pos, int *userbuf_len)
 {
   hlfmt_user_passwd (line_buf, line_len, userbuf_pos, userbuf_len);
 }
 
 // hlfmt main
 
-static void hlfmt_hash (uint hashfile_format, char line_buf[BUFSIZ], int line_len, char **hashbuf_pos, int *hashbuf_len)
+static void hlfmt_hash (uint hashfile_format, char *line_buf, int line_len, char **hashbuf_pos, int *hashbuf_len)
 {
   switch (hashfile_format)
   {
@@ -5148,7 +5154,7 @@ static void hlfmt_hash (uint hashfile_format, char line_buf[BUFSIZ], int line_le
   }
 }
 
-static void hlfmt_user (uint hashfile_format, char line_buf[BUFSIZ], int line_len, char **userbuf_pos, int *userbuf_len)
+static void hlfmt_user (uint hashfile_format, char *line_buf, int line_len, char **userbuf_pos, int *userbuf_len)
 {
   switch (hashfile_format)
   {
@@ -5189,10 +5195,10 @@ static uint hlfmt_detect (FILE *fp, uint max_check)
 
   uint num_check = 0;
 
+  char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
   while (!feof (fp))
   {
-    char line_buf[BUFSIZ] = { 0 };
-
     int line_len = fgetl (fp, line_buf);
 
     if (line_len == 0) continue;
@@ -5206,6 +5212,8 @@ static uint hlfmt_detect (FILE *fp, uint max_check)
     num_check++;
   }
 
+  myfree (line_buf);
+
   uint hashlist_format = HLFMT_HASHCAT;
 
   for (int i = 1; i < HLFMTS_CNT; i++)
@@ -10527,12 +10535,12 @@ int main (int argc, char **argv)
 
       uint line_num = 0;
 
+      char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
       while (!feof (pot_fp))
       {
         line_num++;
 
-        char line_buf[BUFSIZ] = { 0 };
-
         int line_len = fgetl (pot_fp, line_buf);
 
         if (line_len == 0) continue;
@@ -10642,6 +10650,8 @@ int main (int argc, char **argv)
         pot_cnt++;
       }
 
+      myfree (line_buf);
+
       fclose (pot_fp);
 
       SUPPRESS_OUTPUT = 0;
@@ -11166,12 +11176,12 @@ int main (int argc, char **argv)
 
         uint line_num = 0;
 
+        char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
         while (!feof (fp))
         {
           line_num++;
 
-          char line_buf[BUFSIZ] = { 0 };
-
           int line_len = fgetl (fp, line_buf);
 
           if (line_len == 0) continue;
@@ -11309,6 +11319,8 @@ int main (int argc, char **argv)
           }
         }
 
+        myfree (line_buf);
+
         fclose (fp);
 
         if (data.quiet == 0) log_info_nn ("Parsed Hashes: %u/%u (%0.2f%%)", hashes_avail, hashes_avail, 100.00);
@@ -11824,11 +11836,17 @@ int main (int argc, char **argv)
 
         if (fp != NULL)
         {
+          char *line_buf = (char *) mymalloc (HCBUFSIZ);
+
+          // to be safe work with a copy (because of line_len loop, i etc)
+          // moved up here because it's easier to handle continue case
+          // it's just 64kb
+
+          char *line_buf_cpy = (char *) mymalloc (HCBUFSIZ);
+
           while (!feof (fp))
           {
-            char line_buf[BUFSIZ] =  { 0 };
-
-            char *ptr = fgets (line_buf, BUFSIZ - 1, fp);
+            char *ptr = fgets (line_buf, HCBUFSIZ - 1, fp);
 
             if (ptr == NULL) break;
 
@@ -11868,10 +11886,6 @@ int main (int argc, char **argv)
                   // here we have in line_buf: ESSID:MAC1:MAC2   (without the plain)
                   // manipulate salt_buf
 
-                  // to be safe work with a copy (because of line_len loop, i etc)
-
-                  char line_buf_cpy[BUFSIZ] = { 0 };
-
                   memcpy (line_buf_cpy, line_buf, i);
 
                   char *mac2_pos = strrchr (line_buf_cpy, ':');
@@ -11974,6 +11988,10 @@ int main (int argc, char **argv)
             }
           }
 
+          myfree (line_buf_cpy);
+
+          myfree (line_buf);
+
           fclose (fp);
         }
       }
@@ -12349,7 +12367,7 @@ int main (int argc, char **argv)
       all_kernel_rules_buf = (kernel_rule_t **) mycalloc (rp_files_cnt, sizeof (kernel_rule_t *));
     }
 
-    char rule_buf[BUFSIZ] = { 0 };
+    char *rule_buf = (char *) mymalloc (HCBUFSIZ);
 
     int rule_len = 0;
 
@@ -12379,7 +12397,7 @@ int main (int argc, char **argv)
 
       while (!feof (fp))
       {
-        memset (rule_buf, 0, BUFSIZ);
+        memset (rule_buf, 0, HCBUFSIZ);
 
         rule_len = fgetl (fp, rule_buf);
 
@@ -12507,7 +12525,7 @@ int main (int argc, char **argv)
             kernel_rules_avail += INCR_RULES;
           }
 
-          memset (rule_buf, 0, BLOCK_SIZE);
+          memset (rule_buf, 0, HCBUFSIZ);
 
           rule_len = (int) generate_random_rule (rule_buf, rp_gen_func_min, rp_gen_func_max);
 
@@ -12518,6 +12536,8 @@ int main (int argc, char **argv)
       }
     }
 
+    myfree (rule_buf);
+
     /**
      * generate NOP rules
      */
@@ -15095,11 +15115,11 @@ int main (int argc, char **argv)
                   return (-1);
                 }
 
-                char line_buf[BUFSIZ] = { 0 };
+                char *line_buf = (char *) mymalloc (HCBUFSIZ);
 
                 while (!feof (mask_fp))
                 {
-                  memset (line_buf, 0, BUFSIZ);
+                  memset (line_buf, 0, HCBUFSIZ);
 
                   int line_len = fgetl (mask_fp, line_buf);
 
@@ -15119,6 +15139,8 @@ int main (int argc, char **argv)
                   maskcnt++;
                 }
 
+                myfree (line_buf);
+
                 fclose (mask_fp);
               }
               else
@@ -15234,13 +15256,13 @@ int main (int argc, char **argv)
             return (-1);
           }
 
-          char line_buf[BUFSIZ] = { 0 };
+          char *line_buf = (char *) mymalloc (HCBUFSIZ);
 
           uint masks_avail = 1;
 
           while (!feof (mask_fp))
           {
-            memset (line_buf, 0, BUFSIZ);
+            memset (line_buf, 0, HCBUFSIZ);
 
             int line_len = fgetl (mask_fp, line_buf);
 
@@ -15260,6 +15282,8 @@ int main (int argc, char **argv)
             maskcnt++;
           }
 
+          myfree (line_buf);
+
           fclose (mask_fp);
 
           mask_from_file = 1;
@@ -15411,13 +15435,13 @@ int main (int argc, char **argv)
             return (-1);
           }
 
-          char line_buf[BUFSIZ] = { 0 };
+          char *line_buf = (char *) mymalloc (HCBUFSIZ);
 
           uint masks_avail = 1;
 
           while (!feof (mask_fp))
           {
-            memset (line_buf, 0, BUFSIZ);
+            memset (line_buf, 0, HCBUFSIZ);
 
             int line_len = fgetl (mask_fp, line_buf);
 
@@ -15437,6 +15461,8 @@ int main (int argc, char **argv)
             maskcnt++;
           }
 
+          myfree (line_buf);
+
           fclose (mask_fp);
 
           mask_from_file = 1;
diff --git a/src/shared.c b/src/shared.c
index f1002b7a9..aeb914f91 100644
--- a/src/shared.c
+++ b/src/shared.c
@@ -4197,13 +4197,13 @@ uint count_lines (FILE *fd)
 {
   uint cnt = 0;
 
-  char *buf = (char *) mymalloc (BUFSIZ + 1);
+  char *buf = (char *) mymalloc (HCBUFSIZ + 1);
 
   char prev = '\n';
 
   while (!feof (fd))
   {
-    size_t nread = fread (buf, sizeof (char), BUFSIZ, fd);
+    size_t nread = fread (buf, sizeof (char), HCBUFSIZ, fd);
 
     if (nread < 1) continue;
 
@@ -5453,7 +5453,7 @@ int fgetl (FILE *fp, char *line_buf)
 
     line_len++;
 
-    if (line_len == BUFSIZ) line_len--;
+    if (line_len == HCBUFSIZ) line_len--;
 
     if (c == '\n') break;
   }
@@ -8856,18 +8856,18 @@ restore_data_t *init_restore (int argc, char **argv)
 
       if (rd->pid)
       {
-        char pidbin[BUFSIZ] = { 0 };
+        char *pidbin = (char *) mymalloc (HCBUFSIZ);
 
         int pidbin_len = -1;
 
         #ifdef _POSIX
-        snprintf (pidbin, sizeof (pidbin) - 1, "/proc/%d/cmdline", rd->pid);
+        snprintf (pidbin, HCBUFSIZ - 1, "/proc/%d/cmdline", rd->pid);
 
         FILE *fd = fopen (pidbin, "rb");
 
         if (fd)
         {
-          pidbin_len = fread (pidbin, 1, BUFSIZ, fd);
+          pidbin_len = fread (pidbin, 1, HCBUFSIZ, fd);
 
           pidbin[pidbin_len] = 0;
 
@@ -8892,12 +8892,12 @@ restore_data_t *init_restore (int argc, char **argv)
         #elif _WIN
         HANDLE hProcess = OpenProcess (PROCESS_ALL_ACCESS, FALSE, rd->pid);
 
-        char pidbin2[BUFSIZ] = { 0 };
+        char *pidbin2 = (char *) mymalloc (HCBUFSIZ);
 
         int pidbin2_len = -1;
 
-        pidbin_len = GetModuleFileName (NULL, pidbin, BUFSIZ);
-        pidbin2_len = GetModuleFileNameEx (hProcess, NULL, pidbin2, BUFSIZ);
+        pidbin_len = GetModuleFileName (NULL, pidbin, HCBUFSIZ);
+        pidbin2_len = GetModuleFileNameEx (hProcess, NULL, pidbin2, HCBUFSIZ);
 
         pidbin[pidbin_len] = 0;
         pidbin2[pidbin2_len] = 0;
@@ -8911,7 +8911,12 @@ restore_data_t *init_restore (int argc, char **argv)
             exit (-1);
           }
         }
+
+        myfree (pidbin2);
+
         #endif
+
+        myfree (pidbin);
       }
 
       if (rd->version_bin < RESTORE_MIN)
@@ -8966,11 +8971,11 @@ void read_restore (const char *eff_restore_file, restore_data_t *rd)
 
   rd->argv = (char **) mycalloc (rd->argc, sizeof (char *));
 
+  char *buf = (char *) mymalloc (HCBUFSIZ);
+
   for (uint i = 0; i < rd->argc; i++)
   {
-    char buf[BUFSIZ] = { 0 };
-
-    if (fgets (buf, BUFSIZ - 1, fp) == NULL)
+    if (fgets (buf, HCBUFSIZ - 1, fp) == NULL)
     {
       log_error ("ERROR: cannot read %s", eff_restore_file);
 
@@ -8984,6 +8989,8 @@ void read_restore (const char *eff_restore_file, restore_data_t *rd)
     rd->argv[i] = mystrdup (buf);
   }
 
+  myfree (buf);
+
   fclose (fp);
 
   char new_cwd[1024] = { 0 };
@@ -9180,11 +9187,11 @@ tuning_db_t *tuning_db_init (const char *tuning_db_file)
 
   int line_num = 0;
 
+  char *buf = (char *) mymalloc (HCBUFSIZ);
+
   while (!feof (fp))
   {
-    char buf[BUFSIZ];
-
-    char *line_buf = fgets (buf, sizeof (buf) - 1, fp);
+    char *line_buf = fgets (buf, HCBUFSIZ - 1, fp);
 
     if (line_buf == NULL) break;
 
@@ -9313,6 +9320,8 @@ tuning_db_t *tuning_db_init (const char *tuning_db_file)
     }
   }
 
+  myfree (buf);
+
   fclose (fp);
 
   // todo: print loaded 'cnt' message
@@ -11540,11 +11549,11 @@ int sha1axcrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
   if ((input_len < DISPLAY_LEN_MIN_13300) || (input_len > DISPLAY_LEN_MAX_13300)) return (PARSER_GLOBAL_LENGTH);
 
   if (memcmp (SIGNATURE_AXCRYPT_SHA1, input_buf, 13)) return (PARSER_SIGNATURE_UNMATCHED);
- 
+
   u32 *digest = (u32 *) hash_buf->digest;
 
   input_buf +=14;
-  
+
   digest[0] = hex_to_u32 ((const u8 *) &input_buf[ 0]);
   digest[1] = hex_to_u32 ((const u8 *) &input_buf[ 8]);
   digest[2] = hex_to_u32 ((const u8 *) &input_buf[16]);
@@ -18943,22 +18952,22 @@ int axcrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
   char *salt_pos;
 
   char *wrapped_key_pos;
-  
+
   char *data_pos;
 
   salt->salt_iter = atoi (wrapping_rounds_pos);
-  
+
   salt_pos = strchr (wrapping_rounds_pos, '*');
 
   if (salt_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
-  
+
   uint wrapping_rounds_len = salt_pos - wrapping_rounds_pos;
 
   /* Skip '*' */
   salt_pos++;
-  
+
   data_pos = salt_pos;
-  
+
   wrapped_key_pos = strchr (salt_pos, '*');
 
   if (wrapped_key_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
@@ -18983,7 +18992,7 @@ int axcrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_buf[4] = hex_to_u32 ((const u8 *) &data_pos[ 0]);
   salt->salt_buf[5] = hex_to_u32 ((const u8 *) &data_pos[ 8]);
-  salt->salt_buf[6] = hex_to_u32 ((const u8 *) &data_pos[16]); 
+  salt->salt_buf[6] = hex_to_u32 ((const u8 *) &data_pos[16]);
   salt->salt_buf[7] = hex_to_u32 ((const u8 *) &data_pos[24]);
   salt->salt_buf[8] = hex_to_u32 ((const u8 *) &data_pos[32]);
   salt->salt_buf[9] = hex_to_u32 ((const u8 *) &data_pos[40]);
@@ -19574,7 +19583,7 @@ int conv_itoc (const u8 c)
 #define GET_P0_CONV(rule)      INCR_POS; rule_buf[rule_pos] = conv_itoc (((rule)->cmds[rule_cnt] >>  8) & 0xff)
 #define GET_P1_CONV(rule)      INCR_POS; rule_buf[rule_pos] = conv_itoc (((rule)->cmds[rule_cnt] >> 16) & 0xff)
 
-int cpu_rule_to_kernel_rule (char rule_buf[BUFSIZ], uint rule_len, kernel_rule_t *rule)
+int cpu_rule_to_kernel_rule (char *rule_buf, uint rule_len, kernel_rule_t *rule)
 {
   uint rule_pos;
   uint rule_cnt;
@@ -19790,11 +19799,11 @@ int cpu_rule_to_kernel_rule (char rule_buf[BUFSIZ], uint rule_len, kernel_rule_t
   return (0);
 }
 
-int kernel_rule_to_cpu_rule (char rule_buf[BUFSIZ], kernel_rule_t *rule)
+int kernel_rule_to_cpu_rule (char *rule_buf, kernel_rule_t *rule)
 {
   uint rule_cnt;
   uint rule_pos;
-  uint rule_len = BUFSIZ - 1; // maximum possible len
+  uint rule_len = HCBUFSIZ - 1; // maximum possible len
 
   char rule_cmd;
 
diff --git a/tools/rules_test/cpu_rules.c b/tools/rules_test/cpu_rules.c
index 1acc91286..98cc77bd3 100644
--- a/tools/rules_test/cpu_rules.c
+++ b/tools/rules_test/cpu_rules.c
@@ -486,7 +486,7 @@ int mangle_title (char arr[BLOCK_SIZE], int arr_len)
   return (arr_len);
 }
 
-int generate_random_rule (char rule_buf[RP_RULE_BUFSIZ], u32 rp_gen_func_min, u32 rp_gen_func_max)
+int generate_random_rule (char *rule_buf, u32 rp_gen_func_min, u32 rp_gen_func_max)
 {
   u32 rp_gen_num = get_random_num (rp_gen_func_min, rp_gen_func_max);
 
@@ -929,7 +929,7 @@ int apply_rule_cpu (char *rule, int rule_len, char in[BLOCK_SIZE], int in_len, c
   return (out_len);
 }
 
-int cpu_rule_to_kernel_rule (char rule_buf[BUFSIZ], uint rule_len, kernel_rule_t *rule)
+int cpu_rule_to_kernel_rule (char *rule_buf, uint rule_len, kernel_rule_t *rule)
 {
   uint rule_pos;
   uint rule_cnt;
diff --git a/tools/rules_test/cpu_rules.h b/tools/rules_test/cpu_rules.h
index 44bbc1e65..fcb36fae7 100644
--- a/tools/rules_test/cpu_rules.h
+++ b/tools/rules_test/cpu_rules.h
@@ -53,7 +53,7 @@ int mangle_chr_decr (u8 arr[BLOCK_SIZE], int arr_len, int upos);
 int mangle_title (char arr[BLOCK_SIZE], int arr_len);
 int generate_random_rule (char rule_buf[RP_RULE_BUFSIZ], u32 rp_gen_func_min, u32 rp_gen_func_max);
 int apply_rule_cpu (char *rule, int rule_len, char in[BLOCK_SIZE], int in_len, char out[BLOCK_SIZE]);
-int cpu_rule_to_kernel_rule (char rule_buf[BUFSIZ], uint rule_len, kernel_rule_t *rule);
+int cpu_rule_to_kernel_rule (char *rule_buf, uint rule_len, kernel_rule_t *rule);
 
 bool class_num (char c);
 bool class_lower (char c);
diff --git a/tools/rules_test/kernel2cpu_rule_test.c b/tools/rules_test/kernel2cpu_rule_test.c
index a9dcb0d56..acc1a0ec4 100644
--- a/tools/rules_test/kernel2cpu_rule_test.c
+++ b/tools/rules_test/kernel2cpu_rule_test.c
@@ -11,7 +11,7 @@
 #define RP_GEN_FUNC_MAX      4
 #define PW_MAX              32
 #define LINE_SIG_LEN        RP_GEN_FUNC_MAX * 2 + 1
-
+3
 int max_len = 0;
 
 #include "cpu_rules.h"
@@ -59,7 +59,9 @@ int main (int argc, char **argv)
 {
   FILE *fp = stdin;
 
-  char rule_buf[BUFSIZ];
+  char *rule_buf = (char *) malloc (HCBUFSIZ);
+
+  char *line_buf = (char *) mymalloc (HCBUFSIZ);
 
   int rp_gen_func_min = RP_GEN_FUNC_MIN;
   int rp_gen_func_max = RP_GEN_FUNC_MAX;
@@ -72,9 +74,7 @@ int main (int argc, char **argv)
 
     if (feof (fp)) break;
 
-    char line_buf[BUFSIZ + 1];
-
-    char *line_ptr = fgets (line_buf, BUFSIZ, fp);
+    char *line_ptr = fgets (line_buf, HCBUFSIZ - 1, fp);
 
     if (line_ptr == NULL) continue;
 
@@ -116,7 +116,7 @@ int main (int argc, char **argv)
       }
       else
       {
-        strncpy (rule_buf, argv[1], BUFSIZ);
+        strncpy (rule_buf, argv[1], HCBUFSIZ - 1);
 
         rule_len = strlen (rule_buf);
       }
@@ -204,5 +204,9 @@ int main (int argc, char **argv)
 
   fclose (fp);
 
+  free (line_buf);
+
+  free (rule_buf);
+
   return 0;
 }