Optimized memset calls and also some initializations

diff --git a/src/oclHashcat.c b/src/oclHashcat.c
index 4da285c..7f56853 100644 (file)
--- a/src/oclHashcat.c
+++ b/src/oclHashcat.c
@@ -901,7 +901,7 @@ void status_display ()
     return;
   }
 
-  char tmp_buf[1000];
+  char tmp_buf[1000] = { 0 };
 
   uint tmp_len = 0;
 
@@ -1019,7 +1019,7 @@ void status_display ()
     {
       wpa_t *wpa = (wpa_t *) data.esalts_buf;
 
-      uint pke[25];
+      uint pke[25] = { 0 };
 
       char *pke_ptr = (char *) pke;
 
@@ -1028,8 +1028,8 @@ void status_display ()
         pke[i] = byte_swap_32 (wpa->pke[i]);
       }
 
-      char mac1[6];
-      char mac2[6];
+      char mac1[6] = { 0 };
+      char mac2[6] = { 0 };
 
       memcpy (mac1, pke_ptr + 23, 6);
       memcpy (mac2, pke_ptr + 29, 6);
@@ -1063,7 +1063,7 @@ void status_display ()
     }
     else
     {
-      char out_buf[4096];
+      char out_buf[4096] = { 0 };
 
       ascii_digest (out_buf, 0, 0);
 
@@ -1083,8 +1083,8 @@ void status_display ()
   {
     if (data.hash_mode == 3000)
     {
-      char out_buf1[4096];
-      char out_buf2[4096];
+      char out_buf1[4096] = { 0 };
+      char out_buf2[4096] = { 0 };
 
       ascii_digest (out_buf1, 0, 0);
       ascii_digest (out_buf2, 0, 1);
@@ -1103,8 +1103,8 @@ void status_display ()
    * speed new
    */
 
-  u64   speed_cnt[DEVICES_MAX];
-  float speed_ms[DEVICES_MAX];
+  u64   speed_cnt[DEVICES_MAX] = { 0 };
+  float speed_ms[DEVICES_MAX]  = { 0 };
 
   for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
   {
@@ -1141,7 +1141,7 @@ void status_display ()
 
   float hashes_all_ms = 0;
 
-  float hashes_dev_ms[DEVICES_MAX];
+  float hashes_dev_ms[DEVICES_MAX] = { 0 };
 
   for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
   {
@@ -1190,11 +1190,11 @@ void status_display ()
 
   if (sec_run)
   {
-    char display_run[32];
+    char display_run[32] = { 0 };
 
     struct tm tm_run;
 
-    struct tm *tmp;
+    struct tm *tmp = NULL;
 
     #ifdef WIN
 
@@ -1208,7 +1208,9 @@ void status_display ()
 
     if (tmp != NULL)
     {
-      memcpy (&tm_run, tmp, sizeof (struct tm));
+      memset (&tm_run, 0, sizeof (tm_run));
+
+      memcpy (&tm_run, tmp, sizeof (tm_run));
 
       format_timer_display (&tm_run, display_run, sizeof (tm_run));
 
@@ -1320,11 +1322,11 @@ void status_display ()
       }
       else
       {
-        char display_etc[32];
+        char display_etc[32] = { 0 };
 
         struct tm tm_etc;
 
-        struct tm *tmp;
+        struct tm *tmp = NULL;
 
         #ifdef WIN
 
@@ -1338,6 +1340,8 @@ void status_display ()
 
         if (tmp != NULL)
         {
+          memset (&tm_etc, 0, sizeof (tm_etc));
+
           memcpy (&tm_etc, tmp, sizeof (tm_etc));
 
           format_timer_display (&tm_etc, display_etc, sizeof (display_etc));
@@ -1535,9 +1539,9 @@ void status_display ()
 
       if (data.hm_device[device_id].fan_supported == 1)
       {
-        char utilization[HM_STR_BUF_SIZE];
-        char temperature[HM_STR_BUF_SIZE];
-        char fanspeed[HM_STR_BUF_SIZE];
+        char utilization[HM_STR_BUF_SIZE] = { 0 };
+        char temperature[HM_STR_BUF_SIZE] = { 0 };
+        char fanspeed[HM_STR_BUF_SIZE] = { 0 };
 
         hm_device_val_to_str ((char *) utilization, HM_STR_BUF_SIZE, "%", hm_get_utilization_with_device_id (device_id));
         hm_device_val_to_str ((char *) temperature, HM_STR_BUF_SIZE, "c", hm_get_temperature_with_device_id (device_id));
@@ -1559,8 +1563,8 @@ void status_display ()
       }
       else
       {
-        char utilization[HM_STR_BUF_SIZE];
-        char temperature[HM_STR_BUF_SIZE];
+        char utilization[HM_STR_BUF_SIZE] = { 0 };
+        char temperature[HM_STR_BUF_SIZE] = { 0 };
 
         hm_device_val_to_str ((char *) utilization, HM_STR_BUF_SIZE, "%", hm_get_utilization_with_device_id (device_id));
         hm_device_val_to_str ((char *) temperature, HM_STR_BUF_SIZE, "c", hm_get_temperature_with_device_id (device_id));
@@ -1581,8 +1585,8 @@ static void status_benchmark ()
 
   if (data.words_cnt == 0) return;
 
-  u64   speed_cnt[DEVICES_MAX];
-  float speed_ms[DEVICES_MAX];
+  u64   speed_cnt[DEVICES_MAX] = { 0 };
+  float speed_ms[DEVICES_MAX]  = { 0 };
 
   for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
   {
@@ -1605,7 +1609,7 @@ static void status_benchmark ()
 
   float hashes_all_ms = 0;
 
-  float hashes_dev_ms[DEVICES_MAX];
+  float hashes_dev_ms[DEVICES_MAX] = { 0 };
 
   for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
   {
@@ -1836,11 +1840,11 @@ static void check_hash (hc_device_param_t *device_param, const uint salt_pos, co
   uint  debug_mode = data.debug_mode;
   char *debug_file = data.debug_file;
 
-  char debug_rule_buf[BLOCK_SIZE];
+  char debug_rule_buf[BLOCK_SIZE] = { 0 };
   int  debug_rule_len  = 0; // -1 error
   uint debug_plain_len = 0;
 
-  u8 debug_plain_ptr[BLOCK_SIZE];
+  u8 debug_plain_ptr[BLOCK_SIZE] = { 0 };
 
   // hash
 
@@ -1861,10 +1865,10 @@ static void check_hash (hc_device_param_t *device_param, const uint salt_pos, co
 
   u64 crackpos = device_param->words_off;
 
-  uint plain_buf[16];
+  uint plain_buf[16] = { 0 };
 
   u8 *plain_ptr = (u8 *) plain_buf;
-  unsigned int   plain_len = 0;
+  unsigned int plain_len = 0;
 
   if (data.attack_mode == ATTACK_MODE_STRAIGHT)
   {
@@ -2579,8 +2583,6 @@ static void run_kernel_bzero (hc_device_param_t *device_param, cl_mem buf, const
 
     char *tmp = (char *) mymalloc (FILLSZ);
 
-    memset (tmp, 0, FILLSZ);
-
     for (uint i = 0; i < size; i += FILLSZ)
     {
       const int left = size - i;
@@ -2744,7 +2746,7 @@ static void run_cracker (hc_device_param_t *device_param, const uint pw_cnt, con
 
       if (data.attack_mode == ATTACK_MODE_COMBI)
       {
-        char line_buf[BUFSIZ];
+        char line_buf[BUFSIZ] = { 0 };
 
         uint i = 0;
 
@@ -3657,7 +3659,7 @@ static void *thread_outfile_remove (void *p)
 
   if (esalt_size) hash_buf.esalt = (void   *) mymalloc (esalt_size);
 
-  uint digest_buf[64];
+  uint digest_buf[64] = { 0 };
 
   outfile_data_t *out_info = NULL;
 
@@ -3764,9 +3766,7 @@ static void *thread_outfile_remove (void *p)
 
               while (!feof (fp))
               {
-                char line_buf[BUFSIZ];
-
-                memset (line_buf, 0, BUFSIZ);
+                char line_buf[BUFSIZ] = { 0 };
 
                 char *ptr = fgets (line_buf, BUFSIZ - 1, fp);
 
@@ -3830,7 +3830,7 @@ static void *thread_outfile_remove (void *p)
                             wpa_t *wpas = (wpa_t *) data.esalts_buf;
                             wpa_t *wpa  = &wpas[salt_pos];
 
-                            uint pke[25];
+                            uint pke[25] = { 0 };
 
                             char *pke_ptr = (char *) pke;
 
@@ -3839,8 +3839,8 @@ static void *thread_outfile_remove (void *p)
                               pke[i] = byte_swap_32 (wpa->pke[i]);
                             }
 
-                            u8 mac1[6];
-                            u8 mac2[6];
+                            u8 mac1[6] = { 0 };
+                            u8 mac2[6] = { 0 };
 
                             memcpy (mac1, pke_ptr + 23, 6);
                             memcpy (mac2, pke_ptr + 29, 6);
@@ -4014,7 +4014,7 @@ static void *thread_calc_stdin (void *p)
 
     while (words_cur < kernel_blocks)
     {
-      char buf[BUFSIZ];
+      char buf[BUFSIZ] = { 0 };
 
       char *line_buf = fgets (buf, sizeof (buf), stdin);
 
@@ -4944,7 +4944,7 @@ static uint hlfmt_detect (FILE *fp, uint max_check)
 
   while (!feof (fp))
   {
-    char line_buf[BUFSIZ];
+    char line_buf[BUFSIZ] = { 0 };
 
     int line_len = fgetl (fp, line_buf);
 
@@ -5046,7 +5046,7 @@ int main (int argc, char **argv)
 
   if (compute)
   {
-    char display[100];
+    char display[100] = { 0 };
 
     snprintf (display, sizeof (display) - 1, "DISPLAY=%s", compute);
 
@@ -10124,14 +10124,12 @@ int main (int argc, char **argv)
     uint   dictstat_nmemb = 0;
     #endif
 
-    char dictstat[256];
+    char dictstat[256] = { 0 };
 
     FILE *dictstat_fp = NULL;
 
     if (keyspace == 0)
     {
-      memset (dictstat, 0, sizeof (dictstat));
-
       snprintf (dictstat, sizeof (dictstat) - 1, "%s/hashcat.dictstat", profile_dir);
 
       dictstat_fp = fopen (dictstat, "rb");
@@ -10262,7 +10260,7 @@ int main (int argc, char **argv)
       {
         line_num++;
 
-        char line_buf[BUFSIZ];
+        char line_buf[BUFSIZ] = { 0 };
 
         int line_len = fgetl (pot_fp, line_buf);
 
@@ -10848,7 +10846,6 @@ int main (int argc, char **argv)
                 log_info ("WARNING: Hash '%s': %s", input_buf, strparser (parser_status));
               }
 
-
               parser_status = parse_func (hash_buf + 16, 16, &hashes_buf[hashes_cnt]);
 
               hash_t *lm_hash_right = NULL;
@@ -10932,7 +10929,7 @@ int main (int argc, char **argv)
         {
           line_num++;
 
-          char line_buf[BUFSIZ];
+          char line_buf[BUFSIZ] = { 0 };
 
           int line_len = fgetl (fp, line_buf);
 
@@ -11768,9 +11765,7 @@ int main (int argc, char **argv)
         {
           while (!feof (fp))
           {
-            char line_buf[BUFSIZ];
-
-            memset (line_buf, 0, BUFSIZ);
+            char line_buf[BUFSIZ] =  { 0 };
 
             char *ptr = fgets (line_buf, BUFSIZ - 1, fp);
 
@@ -11814,10 +11809,7 @@ int main (int argc, char **argv)
 
                   // to be safe work with a copy (because of line_len loop, i etc)
 
-                  char line_buf_cpy[BUFSIZ];
-                  memset (line_buf_cpy, 0, BUFSIZ);
-
-                  memset (line_buf_cpy, 0, sizeof (line_buf_cpy));
+                  char line_buf_cpy[BUFSIZ] = { 0 };
 
                   memcpy (line_buf_cpy, line_buf, i);
 
@@ -11852,7 +11844,7 @@ int main (int argc, char **argv)
                   {
                     wpa_t *wpa = (wpa_t *) found->esalt;
 
-                    uint pke[25];
+                    uint pke[25] = { 0 };
 
                     char *pke_ptr = (char *) pke;
 
@@ -11861,8 +11853,8 @@ int main (int argc, char **argv)
                       pke[i] = byte_swap_32 (wpa->pke[i]);
                     }
 
-                    u8 mac1[6];
-                    u8 mac2[6];
+                    u8 mac1[6] = { 0 };
+                    u8 mac2[6] = { 0 };
 
                     memcpy (mac1, pke_ptr + 23, 6);
                     memcpy (mac2, pke_ptr + 29, 6);
@@ -12296,7 +12288,7 @@ 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];
+    char rule_buf[BUFSIZ] = { 0 };
 
     int rule_len = 0;
 
@@ -12310,8 +12302,8 @@ int main (int argc, char **argv)
 
       char *rp_file = rp_files[i];
 
-      char in[BLOCK_SIZE];
-      char out[BLOCK_SIZE];
+      char in[BLOCK_SIZE]  = { 0 };
+      char out[BLOCK_SIZE] = { 0 };
 
       FILE *fp = NULL;
 
@@ -12485,11 +12477,11 @@ int main (int argc, char **argv)
      * OpenCL platforms: detect
      */
 
-    cl_platform_id platforms[CL_PLATFORMS_MAX];
+    cl_platform_id platforms[CL_PLATFORMS_MAX] = { 0 };
 
     cl_uint platforms_cnt = 0;
 
-    cl_device_id platform_devices[DEVICES_MAX];
+    cl_device_id platform_devices[DEVICES_MAX] = { 0 };
 
     cl_uint platform_devices_cnt;
 
@@ -13012,7 +13004,7 @@ int main (int argc, char **argv)
       #if defined(WIN) && defined(HAVE_NVAPI)
       if (NvAPI_Initialize () == NVAPI_OK)
       {
-        HM_ADAPTER_NV nvGPUHandle[DEVICES_MAX];
+        HM_ADAPTER_NV nvGPUHandle[DEVICES_MAX] = { 0 };
 
         int tmp_in = hm_get_adapter_index_nv (nvGPUHandle);
 
@@ -13041,7 +13033,7 @@ int main (int argc, char **argv)
       {
         if (hc_NVML_nvmlInit (hm_dll_nv) == NVML_SUCCESS)
         {
-          HM_ADAPTER_NV nvGPUHandle[DEVICES_MAX];
+          HM_ADAPTER_NV nvGPUHandle[DEVICES_MAX] = { 0 };
 
           int tmp_in = hm_get_adapter_index_nv (nvGPUHandle);
 
@@ -13605,8 +13597,6 @@ int main (int argc, char **argv)
         {
           char *build_log = (char *) mymalloc (ret_val_size + 1);
 
-          memset (build_log, 0, ret_val_size + 1);
-
           clGetProgramBuildInfo (device_param->program, device_param->device, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
 
           puts (build_log);
@@ -13710,8 +13700,6 @@ int main (int argc, char **argv)
         {
           char *build_log = (char *) mymalloc (ret_val_size + 1);
 
-          memset (build_log, 0, ret_val_size + 1);
-
           clGetProgramBuildInfo (device_param->program_mp, device_param->device, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
 
           puts (build_log);
@@ -13819,8 +13807,6 @@ int main (int argc, char **argv)
         {
           char *build_log = (char *) mymalloc (ret_val_size + 1);
 
-          memset (build_log, 0, ret_val_size + 1);
-
           clGetProgramBuildInfo (device_param->program_amp, device_param->device, CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
 
           puts (build_log);
@@ -13924,14 +13910,10 @@ int main (int argc, char **argv)
 
       uint *result = (uint *) mymalloc (size_results);
 
-      memset (result, 0, size_results);
-
       device_param->result = result;
 
       pw_t *pws_buf = (pw_t *) mymalloc (size_pws);
 
-      memset (pws_buf, 0, size_pws);
-
       device_param->pws_buf = pws_buf;
 
       pw_cache_t *pw_caches = (pw_cache_t *) mycalloc (64, sizeof (pw_cache_t));
@@ -14583,8 +14565,8 @@ int main (int argc, char **argv)
 
       // find the bigger dictionary and use as base
 
-      FILE *fp1;
-      FILE *fp2;
+      FILE *fp1 = NULL;
+      FILE *fp2 = NULL;
 
       struct stat tmp_stat;
 
@@ -14770,7 +14752,7 @@ int main (int argc, char **argv)
                   return (-1);
                 }
 
-                char line_buf[BUFSIZ];
+                char line_buf[BUFSIZ] = { 0 };
 
                 while (!feof (mask_fp))
                 {
@@ -14909,7 +14891,7 @@ int main (int argc, char **argv)
             return (-1);
           }
 
-          char line_buf[BUFSIZ];
+          char line_buf[BUFSIZ] = { 0 };
 
           uint masks_avail = 1;
 
@@ -15086,7 +15068,7 @@ int main (int argc, char **argv)
             return (-1);
           }
 
-          char line_buf[BUFSIZ];
+          char line_buf[BUFSIZ] = { 0 };
 
           uint masks_avail = 1;
 

diff --git a/src/rp_kernel_on_cpu.c b/src/rp_kernel_on_cpu.c
index 57beae1..862cba5 100644 (file)
--- a/src/rp_kernel_on_cpu.c
+++ b/src/rp_kernel_on_cpu.c
@@ -742,7 +742,7 @@ static void lshift_block_N (const u32 in0[4], const u32 in1[4], u32 out0[4], u32
 
 static void append_block1 (const u32 offset, u32 dst0[4], u32 dst1[4], const u32 src_r0)
 {
-  u32 tmp[2];
+  u32 tmp[2] = { 0 };
 
   switch (offset & 3)
   {

diff --git a/src/shared.c b/src/shared.c
index 6af7ca8..4c9d798 100644 (file)
--- a/src/shared.c
+++ b/src/shared.c
@@ -97,7 +97,7 @@ void log_final (FILE *fp, const char *fmt, va_list ap)
     fputc ('\r', fp);
   }
 
-  char s[4096];
+  char s[4096] = { 0 };
 
   int max_len = (int) sizeof (s);
 
@@ -630,7 +630,7 @@ static void AES128_decrypt_cbc (const u32 key[4], const u32 iv[4], const u32 in[
 
   AES_set_decrypt_key ((const u8 *) key, 128, &skey);
 
-  u32 _iv[4];
+  u32 _iv[4] = { 0 };
 
   _iv[0] = iv[0];
   _iv[1] = iv[1];
@@ -639,8 +639,8 @@ static void AES128_decrypt_cbc (const u32 key[4], const u32 iv[4], const u32 in[
 
   for (int i = 0; i < 16; i += 4)
   {
-    u32 _in[4];
-    u32 _out[4];
+    u32 _in[4] = { 0 };
+    u32 _out[4] = { 0 };
 
     _in[0] = in[i + 0];
     _in[1] = in[i + 1];
@@ -670,9 +670,7 @@ static void juniper_decrypt_hash (char *in, char *out)
 {
   // base64 decode
 
-  u8 base64_buf[100];
-
-  memset (base64_buf, 0, sizeof (base64_buf));
+  u8 base64_buf[100] = { 0 };
 
   base64_decode (base64_to_int, (const u8 *) in, DISPLAY_LEN_MIN_501, base64_buf);
 
@@ -686,7 +684,7 @@ static void juniper_decrypt_hash (char *in, char *out)
 
   // reversed key
 
-  u32 juniper_key[4];
+  u32 juniper_key[4] = { 0 };
 
   juniper_key[0] = byte_swap_32 (0xa6707a7e);
   juniper_key[1] = byte_swap_32 (0x8df91059);
@@ -2448,7 +2446,7 @@ int tty_getchar()
   // Then it wants to read with getche () a keyboard input
   // which has never been made.
 
-  INPUT_RECORD buf[100];
+  INPUT_RECORD buf[100] = { 0 };
 
   DWORD num = 0;
 
@@ -3341,8 +3339,6 @@ void mp_add_cs_buf (uint *in_buf, size_t in_len, cs_t *css, int css_cnt)
 
   uint *css_uniq = (uint *) mymalloc (css_uniq_sz);
 
-  memset (css_uniq, 0, css_uniq_sz);
-
   size_t i;
 
   for (i = 0; i < cs->cs_len; i++)
@@ -3606,9 +3602,7 @@ void mp_setup_sys (cs_t *mp_sys)
 {
   uint pos;
   uint chr;
-  uint donec[CHARSIZ];
-
-  memset (donec, 0, sizeof (donec));
+  uint donec[CHARSIZ] = { 0 };
 
   for (pos = 0, chr =  'a'; chr <=  'z'; chr++) { donec[chr] = 1;
                                                   mp_sys[0].cs_buf[pos++] = chr;
@@ -3643,9 +3637,7 @@ void mp_setup_usr (cs_t *mp_sys, cs_t *mp_usr, char *buf, uint index)
   }
   else
   {
-    char mp_file[1024];
-
-    memset (mp_file, 0, sizeof (mp_file));
+    char mp_file[1024] = { 0 };
 
     size_t len = fread (mp_file, 1, sizeof (mp_file) - 1, fp);
 
@@ -3827,9 +3819,7 @@ void sp_setup_tbl (const char *shared_dir, char *hcstat, uint disable, uint clas
 
   if (hcstat == NULL)
   {
-    char hcstat_tmp[256];
-
-    memset (hcstat_tmp, 0, sizeof (hcstat_tmp));
+    char hcstat_tmp[256] = { 0 };
 
     snprintf (hcstat_tmp, sizeof (hcstat_tmp) - 1, "%s/%s", shared_dir, SP_HCSTAT);
 
@@ -3849,6 +3839,8 @@ void sp_setup_tbl (const char *shared_dir, char *hcstat, uint disable, uint clas
   {
     log_error ("%s: Could not load data", hcstat);
 
+    fclose (fd);
+
     exit (-1);
   }
 
@@ -3856,6 +3848,8 @@ void sp_setup_tbl (const char *shared_dir, char *hcstat, uint disable, uint clas
   {
     log_error ("%s: Could not load data", hcstat);
 
+    fclose (fd);
+
     exit (-1);
   }
 
@@ -5797,7 +5791,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
   uint len = 4096;
 
-  uint digest_buf[64];
+  uint digest_buf[64] = { 0 };
 
   u64 *digest_buf64 = (u64 *) digest_buf;
 
@@ -6014,9 +6008,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     if (opts_type & OPTS_TYPE_ST_HEX)
     {
-      char tmp[64];
-
-      memset (tmp, 0, sizeof (tmp));
+      char tmp[64] = { 0 };
 
       for (uint i = 0, j = 0; i < len; i += 1, j += 2)
       {
@@ -6039,24 +6031,17 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
   // some modes require special encoding
   //
 
-  uint out_buf_plain[256];
-  uint out_buf_salt[256];
-
-  char tmp_buf[1024];
-
-  memset (out_buf_plain, 0, sizeof (out_buf_plain));
-  memset (out_buf_salt,  0, sizeof (out_buf_salt));
+  uint out_buf_plain[256] = { 0 };
+  uint out_buf_salt[256] = { 0 };
 
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  char tmp_buf[1024] = { 0 };
 
   char *ptr_plain = (char *) out_buf_plain;
   char *ptr_salt  = (char *) out_buf_salt;
 
   if (hash_mode == 22)
   {
-    char username[30];
-
-    memset (username, 0, sizeof (username));
+    char username[30] = { 0 };
 
     memcpy (username, salt.salt_buf, salt.salt_len - 22);
 
@@ -6496,7 +6481,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     wpa_t *wpa = &wpas[salt_pos];
 
-    uint pke[25];
+    uint pke[25] = { 0 };
 
     char *pke_ptr = (char *) pke;
 
@@ -6505,8 +6490,8 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
       pke[i] = byte_swap_32 (wpa->pke[i]);
     }
 
-    unsigned char mac1[6];
-    unsigned char mac2[6];
+    unsigned char mac1[6] = { 0 };
+    unsigned char mac2[6] = { 0 };
 
     memcpy (mac1, pke_ptr + 23, 6);
     memcpy (mac2, pke_ptr + 29, 6);
@@ -6715,15 +6700,10 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     netntlm_t *netntlm = &netntlms[salt_pos];
 
-    char user_buf[64];
-    char domain_buf[64];
-    char srvchall_buf[1024];
-    char clichall_buf[1024];
-
-    memset (user_buf,     0, sizeof (user_buf));
-    memset (domain_buf,   0, sizeof (domain_buf));
-    memset (srvchall_buf, 0, sizeof (srvchall_buf));
-    memset (clichall_buf, 0, sizeof (clichall_buf));
+    char user_buf[64] = { 0 };
+    char domain_buf[64] = { 0 };
+    char srvchall_buf[1024] = { 0 };
+    char clichall_buf[1024] = { 0 };
 
     for (uint i = 0, j = 0; j < netntlm->user_len; i += 1, j += 2)
     {
@@ -6771,15 +6751,10 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     netntlm_t *netntlm = &netntlms[salt_pos];
 
-    char user_buf[64];
-    char domain_buf[64];
-    char srvchall_buf[1024];
-    char clichall_buf[1024];
-
-    memset (user_buf,     0, sizeof (user_buf));
-    memset (domain_buf,   0, sizeof (domain_buf));
-    memset (srvchall_buf, 0, sizeof (srvchall_buf));
-    memset (clichall_buf, 0, sizeof (clichall_buf));
+    char user_buf[64] = { 0 };
+    char domain_buf[64] = { 0 };
+    char srvchall_buf[1024] = { 0 };
+    char clichall_buf[1024] = { 0 };
 
     for (uint i = 0, j = 0; j < netntlm->user_len; i += 1, j += 2)
     {
@@ -6923,7 +6898,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     pbkdf2_sha512_t *pbkdf2_sha512  = &pbkdf2_sha512s[salt_pos];
 
-    uint esalt[16];
+    uint esalt[8] = { 0 };
 
     esalt[0] = byte_swap_32 (pbkdf2_sha512->salt_buf[0]);
     esalt[1] = byte_swap_32 (pbkdf2_sha512->salt_buf[1]);
@@ -7032,7 +7007,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     u8 *ptr_timestamp = (u8 *) krb5pa->timestamp;
     u8 *ptr_checksum  = (u8 *) krb5pa->checksum;
 
-    char data[128];
+    char data[128] = { 0 };
 
     char *ptr_data = data;
 
@@ -7120,7 +7095,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     cloudkey_t *cloudkey = &cloudkeys[salt_pos];
 
-    char data_buf[4096];
+    char data_buf[4096] = { 0 };
 
     for (int i = 0, j = 0; i < 512; i += 1, j += 8)
     {
@@ -7224,7 +7199,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     androidfde_t *androidfde = &androidfdes[salt_pos];
 
-    char tmp[3073];
+    char tmp[3073] = { 0 };
 
     for (uint i = 0, j = 0; i < 384; i += 1, j += 8)
     {
@@ -7251,9 +7226,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     uint r = salt.scrypt_r;
     uint p = salt.scrypt_p;
 
-    char base64_salt[32];
-
-    memset (base64_salt, 0, 32);
+    char base64_salt[32] = { 0 };
 
     base64_encode (int_to_base64, (const u8 *) salt.salt_buf, salt.salt_len, (u8 *) base64_salt);
 
@@ -7305,8 +7278,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     digest_buf[7] = byte_swap_32 (digest_buf[7]);
     digest_buf[8] = 0; // needed for base64_encode ()
 
-    char tmp_buf[64];
-    memset (tmp_buf, 0, sizeof (tmp_buf));
+    char tmp_buf[64] = { 0 };
 
     base64_encode (int_to_itoa64, (const u8 *) digest_buf, 32, (u8 *) tmp_buf);
     tmp_buf[43] = 0; // cut it here
@@ -7327,8 +7299,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     digest_buf[7] = byte_swap_32 (digest_buf[7]);
     digest_buf[8] = 0; // needed for base64_encode ()
 
-    char tmp_buf[64];
-    memset (tmp_buf, 0, sizeof (tmp_buf));
+    char tmp_buf[64] = { 0 };
 
     base64_encode (int_to_itoa64, (const u8 *) digest_buf, 32, (u8 *) tmp_buf);
     tmp_buf[43] = 0; // cut it here
@@ -7578,8 +7549,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     digest_buf[7] = byte_swap_32 (digest_buf[7]);
     digest_buf[8] = 0; // needed for base64_encode ()
 
-    char tmp_buf[64];
-    memset (tmp_buf, 0, sizeof (tmp_buf));
+    char tmp_buf[64] = { 0 };
 
     base64_encode (int_to_base64, (const u8 *) digest_buf, 32, (u8 *) tmp_buf);
 
@@ -7607,15 +7577,13 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     // challenge
 
-    char challenge[100];
-
-    memset (challenge, 0, sizeof (challenge));
+    char challenge[100] = { 0 };
 
     base64_encode (int_to_base64, (const u8 *) salt.salt_buf, salt.salt_len, (u8 *) challenge);
 
     // response
 
-    char tmp_buf[100];
+    char tmp_buf[100] = { 0 };
 
     uint tmp_len = snprintf (tmp_buf, 100, "%s %08x%08x%08x%08x",
       (char *) cram_md5->user,
@@ -7624,9 +7592,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
       digest_buf[2],
       digest_buf[3]);
 
-    char response[100];
-
-    memset (response, 0, sizeof (response));
+    char response[100] = { 0 };
 
     base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) response);
 
@@ -7634,9 +7600,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
   }
   else if (hash_mode == 10300)
   {
-    char tmp_buf[100];
-
-    memset (tmp_buf, 0, sizeof (tmp_buf));
+    char tmp_buf[100] = { 0 };
 
     memcpy (tmp_buf +  0, digest_buf, 20);
     memcpy (tmp_buf + 20, salt.salt_buf, salt.salt_len);
@@ -7645,9 +7609,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
 
     // base64 encode it
 
-    char base64_encoded[100];
-
-    memset (base64_encoded, 0, sizeof (base64_encoded));
+    char base64_encoded[100] = { 0 };
 
     base64_encode (int_to_base64, (const u8 *) tmp_buf, tmp_len, (u8 *) base64_encoded);
 
@@ -8098,7 +8060,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
   {
     // encode iteration count
 
-    char salt_iter[5];
+    char salt_iter[5] = { 0 };
 
     salt_iter[0] = int_to_itoa64 ((salt.salt_iter      ) & 0x3f);
     salt_iter[1] = int_to_itoa64 ((salt.salt_iter >>  6) & 0x3f);
@@ -8434,7 +8396,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
       digest_buf[ 2] = byte_swap_32 (digest_buf[ 2]);
       digest_buf[ 3] = byte_swap_32 (digest_buf[ 3]);
 
-      char buf[16];
+      char buf[16] = { 0 };
 
       memcpy (buf + 0, salt.salt_buf, 5);
       memcpy (buf + 5, digest_buf, 9);
@@ -8450,9 +8412,7 @@ void ascii_digest (char out_buf[4096], uint salt_pos, uint digest_pos)
     }
     else if (hash_type == HASH_TYPE_LOTUS8)
     {
-      char buf[52];
-
-      memset (buf, 0, sizeof (buf));
+      char buf[52] = { 0 };
 
       // salt
 
@@ -8516,7 +8476,7 @@ void to_hccap_t (hccap_t *hccap, uint salt_pos, uint digest_pos)
 
   if (wpa->keyver != 1)
   {
-    uint eapol_tmp[64];
+    uint eapol_tmp[64] = { 0 };
 
     for (uint i = 0; i < 64; i++)
     {
@@ -8530,7 +8490,7 @@ void to_hccap_t (hccap_t *hccap, uint salt_pos, uint digest_pos)
     memcpy (hccap->eapol, wpa->eapol, wpa->eapol_size);
   }
 
-  uint pke_tmp[25];
+  uint pke_tmp[25] = { 0 };
 
   for (int i = 5; i < 25; i++)
   {
@@ -8552,7 +8512,7 @@ void to_hccap_t (hccap_t *hccap, uint salt_pos, uint digest_pos)
 
   if (wpa->keyver != 1)
   {
-    uint digest_tmp[4];
+    uint digest_tmp[4] = { 0 };
 
     digest_tmp[0] = byte_swap_32 (digest_ptr[0]);
     digest_tmp[1] = byte_swap_32 (digest_ptr[1]);
@@ -8741,13 +8701,11 @@ restore_data_t *init_restore (int argc, char **argv)
 
       if (rd->pid)
       {
-        char pidbin[BUFSIZ];
+        char pidbin[BUFSIZ] = { 0 };
 
-        int pidbin_len;
+        int pidbin_len = -1;
 
         #ifdef _POSIX
-        memset (pidbin, 0, sizeof (pidbin));
-
         snprintf (pidbin, sizeof (pidbin) - 1, "/proc/%d/cmdline", rd->pid);
 
         FILE *fd = fopen (pidbin, "rb");
@@ -8779,11 +8737,9 @@ restore_data_t *init_restore (int argc, char **argv)
         #elif _WIN
         HANDLE hProcess = OpenProcess (PROCESS_ALL_ACCESS, FALSE, rd->pid);
 
-        char pidbin2[BUFSIZ];
+        char pidbin2[BUFSIZ] = { 0 };
 
-        int pidbin2_len;
-
-        memset (pidbin2, 0, sizeof (pidbin2));
+        int pidbin2_len = -1;
 
         pidbin_len = GetModuleFileName (NULL, pidbin, BUFSIZ);
         pidbin2_len = GetModuleFileNameEx (hProcess, NULL, pidbin2, BUFSIZ);
@@ -8857,7 +8813,7 @@ void read_restore (const char *eff_restore_file, restore_data_t *rd)
 
   for (uint i = 0; i < rd->argc; i++)
   {
-    char buf[BUFSIZ];
+    char buf[BUFSIZ] = { 0 };
 
     if (fgets (buf, BUFSIZ - 1, fp) == NULL)
     {
@@ -8875,7 +8831,7 @@ void read_restore (const char *eff_restore_file, restore_data_t *rd)
 
   fclose (fp);
 
-  char new_cwd[256];
+  char new_cwd[1024] = { 0 };
 
   char *nwd = getcwd (new_cwd, sizeof (new_cwd));
 
@@ -8896,7 +8852,6 @@ void read_restore (const char *eff_restore_file, restore_data_t *rd)
     log_info ("WARNING: Found old restore file, updating path to %s...", new_cwd);
   }
 
-
   if (chdir (rd->cwd))
   {
     log_error ("ERROR: cannot chdir to %s: %s", rd->cwd, strerror (errno));
@@ -9391,14 +9346,13 @@ uint set_kernel_loops (uint hash_mode)
 
 uint parse_and_store_salt (char *out, char *in, uint salt_len)
 {
-  u8 tmp[256];
+  u8 tmp[256] = { 0 };
 
   if (salt_len > sizeof (tmp))
   {
     return UINT_MAX;
   }
 
-  memset (tmp, 0, sizeof (tmp));
   memcpy (tmp, in, salt_len);
 
   if (data.opts_type & OPTS_TYPE_ST_HEX)
@@ -9531,9 +9485,7 @@ int bcrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_len = salt_len;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (bf64_to_int, (const u8 *) salt_pos, 22, tmp_buf);
 
@@ -9572,9 +9524,7 @@ int cisco4_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   u32 *digest = (u32 *) hash_buf->digest;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (itoa64_to_int, (const u8 *) input_buf, 43, tmp_buf);
 
@@ -9761,7 +9711,7 @@ int netscreen_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // unscramble
 
-  char clean_input_buf[32];
+  char clean_input_buf[32] = { 0 };
 
   char sig[6] = { 'n', 'r', 'c', 's', 't', 'n' };
   int  pos[6] = {   0,   6,  12,  17,  23,  29 };
@@ -10366,9 +10316,7 @@ int episerver_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_len = salt_len;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (base64_to_int, (const u8 *) hash_pos, 27, tmp_buf);
 
@@ -10410,9 +10358,7 @@ int descrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_len = 2;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (itoa64_to_int, (const u8 *) input_buf + 2, 11, tmp_buf);
 
@@ -10851,7 +10797,7 @@ int netntlmv1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   /* special case, last 8 byte do not need to be checked since they are brute-forced next */
 
-  uint digest_tmp[2];
+  uint digest_tmp[2] = { 0 };
 
   digest_tmp[0] = hex_to_u32 ((const u8 *) &hash_pos[32]);
   digest_tmp[1] = hex_to_u32 ((const u8 *) &hash_pos[40]);
@@ -10865,26 +10811,16 @@ int netntlmv1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
   {
     if ((netntlm->chall_buf[2] == 0) && (netntlm->chall_buf[3] == 0) && (netntlm->chall_buf[4] == 0) && (netntlm->chall_buf[5] == 0))
     {
-      uint w[16];
+      uint w[16] = { 0 };
 
       w[ 0] = netntlm->chall_buf[6];
       w[ 1] = netntlm->chall_buf[7];
       w[ 2] = netntlm->chall_buf[0];
       w[ 3] = netntlm->chall_buf[1];
       w[ 4] = 0x80;
-      w[ 5] = 0;
-      w[ 6] = 0;
-      w[ 7] = 0;
-      w[ 8] = 0;
-      w[ 9] = 0;
-      w[10] = 0;
-      w[11] = 0;
-      w[12] = 0;
-      w[13] = 0;
       w[14] = 16 * 8;
-      w[15] = 0;
 
-      uint dgst[4];
+      uint dgst[4] = { 0 };
 
       dgst[0] = MAGIC_A;
       dgst[1] = MAGIC_B;
@@ -10907,8 +10843,8 @@ int netntlmv1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
     transform_netntlmv1_key ((u8 *) key_md4, (u8 *) key_des);
 
-    uint Kc[16];
-    uint Kd[16];
+    uint Kc[16] = { 0 };
+    uint Kd[16] = { 0 };
 
     _des_keysetup (key_des, Kc, Kd, c_skb);
 
@@ -11428,9 +11364,7 @@ int ipb2_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   char *salt_buf = input_buf + 32 + 1;
 
-  uint salt_pc_block[16];
-
-  memset (salt_pc_block, 0, sizeof (salt_pc_block));
+  uint salt_pc_block[16] = { 0 };
 
   char *salt_pc_block_ptr = (char *) salt_pc_block;
 
@@ -11442,12 +11376,7 @@ int ipb2_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt_pc_block[14] = salt_len * 8;
 
-  uint salt_pc_digest[4];
-
-  salt_pc_digest[0] = MAGIC_A;
-  salt_pc_digest[1] = MAGIC_B;
-  salt_pc_digest[2] = MAGIC_C;
-  salt_pc_digest[3] = MAGIC_D;
+  uint salt_pc_digest[4] = { MAGIC_A, MAGIC_B, MAGIC_C, MAGIC_D };
 
   md5_64 (salt_pc_block, salt_pc_digest);
 
@@ -11560,9 +11489,7 @@ int sha1b64_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   u32 *digest = (u32 *) hash_buf->digest;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (base64_to_int, (const u8 *) input_buf + 5, input_len - 5, tmp_buf);
 
@@ -11593,9 +11520,7 @@ int sha1b64s_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt_t *salt = hash_buf->salt;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   int tmp_len = base64_decode (base64_to_int, (const u8 *) input_buf + 6, input_len - 6, tmp_buf);
 
@@ -12143,7 +12068,7 @@ int ikepsk_md5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   char *in_off[9];
 
-  size_t in_len[9];
+  size_t in_len[9] = { 0 };
 
   in_off[0] = strtok (input_buf, ":");
 
@@ -12160,9 +12085,7 @@ int ikepsk_md5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
     in_len[i] = strlen (in_off[i]);
   }
 
-  char *ptr;
-
-  ptr = (char *) ikepsk->msg_buf;
+  char *ptr = (char *) ikepsk->msg_buf;
 
   for (i = 0; i < in_len[0]; i += 2) *ptr++ = hex_to_u8 ((const u8 *) in_off[0] + i);
   for (i = 0; i < in_len[1]; i += 2) *ptr++ = hex_to_u8 ((const u8 *) in_off[1] + i);
@@ -12230,7 +12153,7 @@ int ikepsk_sha1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   char *in_off[9];
 
-  size_t in_len[9];
+  size_t in_len[9] = { 0 };
 
   in_off[0] = strtok (input_buf, ":");
 
@@ -12247,9 +12170,7 @@ int ikepsk_sha1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
     in_len[i] = strlen (in_off[i]);
   }
 
-  char *ptr;
-
-  ptr = (char *) ikepsk->msg_buf;
+  char *ptr = (char *) ikepsk->msg_buf;
 
   for (i = 0; i < in_len[0]; i += 2) *ptr++ = hex_to_u8 ((const u8 *) in_off[0] + i);
   for (i = 0; i < in_len[1]; i += 2) *ptr++ = hex_to_u8 ((const u8 *) in_off[1] + i);
@@ -12401,7 +12322,7 @@ int truecrypt_parse_hash_1k (char *input_buf, uint input_len, hash_t *hash_buf)
     exit (-1);
   }
 
-  char buf[512];
+  char buf[512] = { 0 };
 
   int n = fread (buf, 1, sizeof (buf), fp);
 
@@ -12448,7 +12369,7 @@ int truecrypt_parse_hash_2k (char *input_buf, uint input_len, hash_t *hash_buf)
     exit (-1);
   }
 
-  char buf[512];
+  char buf[512] = { 0 };
 
   int n = fread (buf, 1, sizeof (buf), fp);
 
@@ -13005,9 +12926,7 @@ int episerver4_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_len = salt_len;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (base64_to_int, (const u8 *) hash_pos, 43, tmp_buf);
 
@@ -13108,9 +13027,7 @@ int sha512b64s_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt_t *salt = hash_buf->salt;
 
-  u8 tmp_buf[120];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[120] = { 0 };
 
   int tmp_len = base64_decode (base64_to_int, (const u8 *) input_buf + 9, input_len - 9, tmp_buf);
 
@@ -13986,9 +13903,7 @@ int nsec3_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
   // and one that includes only the real salt (stored into salt_buf[]).
   // the domain-name length is put into array position 7 of salt_buf_pc[] since there is not salt_pc_len
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base32_decode (itoa32_to_int, (const u8 *) hashbuf_pos, 32, tmp_buf);
 
@@ -14188,9 +14103,7 @@ int lotus6_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt_t *salt = hash_buf->salt;
 
-  u8 tmp_buf[120];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[120] = { 0 };
 
   base64_decode (lotus64_to_int, (const u8 *) input_buf + 2, input_len - 3, tmp_buf);
 
@@ -14219,9 +14132,7 @@ int lotus8_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt_t *salt = hash_buf->salt;
 
-  u8 tmp_buf[120];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[120] = { 0 };
 
   base64_decode (lotus64_to_int, (const u8 *) input_buf + 2, input_len - 3, tmp_buf);
 
@@ -14235,7 +14146,7 @@ int lotus8_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // iteration
 
-  char tmp_iter_buf[11];
+  char tmp_iter_buf[11] = { 0 };
 
   memcpy (tmp_iter_buf, tmp_buf + 16, 10);
 
@@ -14408,9 +14319,7 @@ int peoplesoft_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   u32 *digest = (u32 *) hash_buf->digest;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (base64_to_int, (const u8 *) input_buf, input_len, tmp_buf);
 
@@ -14631,9 +14540,7 @@ int scrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // base64 decode
 
-  u8 tmp_buf[33];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[33] = { 0 };
 
   int tmp_len = base64_decode (base64_to_int, (const u8 *) saltbuf_pos, hash_pos - saltbuf_pos, tmp_buf);
 
@@ -14671,7 +14578,7 @@ int juniper_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
    * parse line
    */
 
-  char decrypted[76]; // iv + hash
+  char decrypted[76] = { 0 }; // iv + hash
 
   juniper_decrypt_hash (input_buf, decrypted);
 
@@ -14745,9 +14652,7 @@ int cisco8_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // base64 decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   uint hash_len = input_len - 3 - salt_len - 1;
 
@@ -14805,9 +14710,7 @@ int cisco9_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // base64 decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   uint hash_len = input_len - 3 - salt_len - 1;
 
@@ -15930,9 +15833,7 @@ int djangopbkdf2_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // base64 decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   uint hash_len = input_len - (hash_pos - input_buf);
 
@@ -16024,9 +15925,7 @@ int crammd5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // base64 decode salt
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   salt_len = base64_decode (base64_to_int, (const u8 *) salt_pos, salt_len, tmp_buf);
 
@@ -16104,9 +16003,7 @@ int saph_sha1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   u32 base64_len = input_len - (base64_pos - input_buf);
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   u32 decoded_len = base64_decode (base64_to_int, (const u8 *) base64_pos, base64_len, tmp_buf);
 
@@ -16843,14 +16740,14 @@ int pdf14_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // md5
 
-  uint salt_pc_block[32];
+  uint salt_pc_block[32] = { 0 };
 
   char *salt_pc_ptr = (char *) salt_pc_block;
 
   memcpy (salt_pc_ptr, padding, 32);
   memcpy (salt_pc_ptr + 32, pdf->id_buf, pdf->id_len);
 
-  uint salt_pc_digest[4];
+  uint salt_pc_digest[4] = { 0 };
 
   md5_complete_no_limit (salt_pc_digest, salt_pc_block, 32 + pdf->id_len);
 
@@ -17140,9 +17037,7 @@ int pbkdf2_sha256_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   int hash_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_b64_len, tmp_buf);
 
@@ -18304,9 +18199,7 @@ int pbkdf2_md5_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   int hash_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_b64_len, tmp_buf);
 
@@ -18388,9 +18281,7 @@ int pbkdf2_sha1_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   int hash_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_b64_len, tmp_buf);
 
@@ -18477,9 +18368,7 @@ int pbkdf2_sha512_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   // decode hash
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   int hash_len = base64_decode (base64_to_int, (const u8 *) hash_pos, hash_b64_len, tmp_buf);
 
@@ -18597,9 +18486,7 @@ int bsdicrypt_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
 
   salt->salt_len = 4;
 
-  u8 tmp_buf[100];
-
-  memset (tmp_buf, 0, sizeof (tmp_buf));
+  u8 tmp_buf[100] = { 0 };
 
   base64_decode (itoa64_to_int, (const u8 *) input_buf + 9, 11, tmp_buf);
 
@@ -18833,7 +18720,7 @@ int cf10_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
    * we can precompute the first sha256 transform
    */
 
-  uint w[16];
+  uint w[16] = { 0 };
 
   w[ 0] = byte_swap_32 (salt->salt_buf[ 0]);
   w[ 1] = byte_swap_32 (salt->salt_buf[ 1]);
@@ -18852,16 +18739,7 @@ int cf10_parse_hash (char *input_buf, uint input_len, hash_t *hash_buf)
   w[14] = byte_swap_32 (salt->salt_buf[14]);
   w[15] = byte_swap_32 (salt->salt_buf[15]);
 
-  uint pc256[8];
-
-  pc256[0] = SHA256M_A;
-  pc256[1] = SHA256M_B;
-  pc256[2] = SHA256M_C;
-  pc256[3] = SHA256M_D;
-  pc256[4] = SHA256M_E;
-  pc256[5] = SHA256M_F;
-  pc256[6] = SHA256M_G;
-  pc256[7] = SHA256M_H;
+  uint pc256[8] = { SHA256M_A, SHA256M_B, SHA256M_C, SHA256M_D, SHA256M_E, SHA256M_F, SHA256M_G, SHA256M_H };
 
   sha256_64 (w, pc256);
 
@@ -20114,7 +19992,7 @@ int mangle_dupeblock_prepend (char arr[BLOCK_SIZE], int arr_len, int ulen)
 
   if ((arr_len + ulen) >= BLOCK_SIZE) return (arr_len);
 
-  char cs[100];
+  char cs[100] = { 0 };
 
   memcpy (cs, arr, ulen);
 
@@ -20391,7 +20269,7 @@ int _old_apply_rule (char *rule, int rule_len, char in[BLOCK_SIZE], int in_len,
 
   for (rule_pos = 0; rule_pos < rule_len; rule_pos++)
   {
-    int upos; int upos2;
+    int upos, upos2;
     int ulen;
 
     switch (rule[rule_pos])