fixed compiler warnings and errors

cipher.cc

@@ -79,18 +79,22 @@ string cipher::encrypt(const string& source) {
   rijn.init(Rijndael::CBC,  Rijndael::Encrypt, key, Rijndael::Key32Bytes);
 
   /* encrypt the source */
-  unsigned char output[size + 16];
+  unsigned char *output = (unsigned char *)malloc(size + 16);
   int res = rijn.padEncrypt(plainText, (int)size, output);
 
   /* convert the result back to char[] */
-  char outText[res];
+  char *outText = (char *)malloc(res);
   for(int y=0; y<(res); y++) {
     outText[y] = output[y];
   }
 
+  free(output);
+  
   /* return the crypted string */
   if(res >= 0) {
-    return string(outText, res);
+    string text = string(outText, res);
+    free(outText);
+    return text;
   }
   else {
     cerr << "Failed to encrypt: " << error(res) << "!" << endl;
@@ -113,18 +117,23 @@ string cipher::decrypt(const string& source) {
   rijn.init(Rijndael::CBC,  Rijndael::Decrypt, key, Rijndael::Key32Bytes);
 
   /* decrypt the source */
-  unsigned char output[size];
+  unsigned char *output = (unsigned char *)malloc(size);
   int res = rijn.padDecrypt(cryptedText, (int)size, output);
 
   /* convert the result back to char[] */
-  char outText[res];
+  char *outText = (char *)malloc(res);
   for(int y=0; y<(res); y++) {
     outText[y] = output[y];
   }
 
+  free(output);
+  
   /* return the decrypted string */
-  if (res >= 0)
+  if (res >= 0) {
-    return string(outText, res);
+    string text = string(outText, res);
+    free(outText);
+    return text;
+  }
   else {
     cerr << "Failed to decrypt: " << error(res) << " (passphrase invalid?) !" << endl;
     exit(1);

dbtool.cc

@@ -127,7 +127,6 @@ int main(int argc, char *argv[]) {
 
 
 string readpass() {
-  char *pass;
   char *envpass;
   envpass = getenv(PW_VARNAME);
   if(envpass != NULL) {
@@ -136,7 +135,7 @@ string readpass() {
   }
   else {
 #ifdef HAVE_GETPASS
-    pass = getpass("passphrase: ");
+    char *pass = getpass("passphrase: ");
     string password = pass;
     free(pass);
 #else

engine.cc

@@ -45,8 +45,6 @@
  */
 
 
-
-
 #include "dbtool.h"
 #include "engine.h"
 #include "platform.h"
@@ -184,23 +182,35 @@ void Engine::dump() {
 }
 
 
-
-
 /*
  * search for regexp given in config.key
  */
 void Engine::regexp() {
   init();
   int num;
-  pcre *p_pcre;
-  pcre_extra *p_pcre_extra;
-  char *err_str;
   int sub_len = 9;
   int *sub_vec;
-  int erroffset;
+  int errnumber;
-  p_pcre_extra = NULL;
+  PCRE2_SIZE erroffset;
-  p_pcre = pcre_compile((char *)config.key.c_str(), 0,
+  pcre2_match_data *match_data;
-			(const char **)(&err_str), &erroffset, NULL);
+  
+  pcre2_code *p_pcre = pcre2_compile(
+                                 (PCRE2_SPTR)config.key.c_str(),               /* the pattern */
+                                 PCRE2_ZERO_TERMINATED, /* indicates pattern is zero-terminated */
+                                 0,                     /* default options */
+                                 &errnumber,          /* for error number */
+                                 &erroffset,          /* for error offset */
+                                 NULL);                 /* use default compile context */
+  
+  if (p_pcre == NULL) {
+    PCRE2_UCHAR buffer[256];
+    pcre2_get_error_message(errnumber, buffer, sizeof(buffer));
+    cerr << "PCRE2 compilation failed at offset: " << erroffset << " with: " << buffer << endl;
+    exit(1);
+  }
+
+  match_data = pcre2_match_data_create_from_pattern(p_pcre, NULL);
+  
 #ifdef HAVE_BERKELEY
   Dbc *dbcp;
   db->cursor(NULL, &dbcp, 0);
@@ -218,9 +228,10 @@ void Engine::regexp() {
       string K(key.dptr, key.dsize);
       string V(value.dptr, value.dsize);
 #endif
+      
       sub_vec = new int(sub_len);
-      num = pcre_exec(p_pcre, p_pcre_extra, (char *)K.c_str(),
+      num = pcre2_match(p_pcre, (PCRE2_SPTR)K.c_str(), (PCRE2_SIZE)K.length(), 0, 0, match_data, NULL);
-		      (int)K.length(), 0, 0, (int *)sub_vec, sub_len);
+
       if(num == 1){
         if(config.reverse == 1) {
           cout << decode(V);
@@ -243,7 +254,10 @@ void Engine::regexp() {
       key = gdbm_nextkey(db,key);
 #endif
     }
-    pcre_free(p_pcre);
+    
+    pcre2_match_data_free(match_data);
+    pcre2_code_free(p_pcre);
+
 #ifdef HAVE_BERKELEY
     dbcp->close();
     db->close(0);
@@ -253,10 +267,6 @@ void Engine::regexp() {
   }
 
 
-
-
-
-
   /*
    * Insert data into the db
    */
@@ -276,47 +286,72 @@ void Engine::from_input() {
     string value = "";
     string line = "";
 
-  int num, match;
+    int num;
-  pcre *p_pcre;
+
-  pcre_extra *p_pcre_extra;
+    int errnumber;
-  char *err_str;
+    PCRE2_SIZE erroffset;
-  int sub_len = 9;
+    pcre2_match_data *match_data;
-  int *sub_vec;
+    PCRE2_SIZE *ovector;
-  char *v1;
+  
-  char *v2;
+    pcre2_code *p_pcre = pcre2_compile(
-  int erroffset;
+                                       (PCRE2_SPTR)config.token.c_str(),
-  p_pcre_extra = NULL;
+                                       PCRE2_ZERO_TERMINATED,
-  p_pcre = pcre_compile((char *)config.token.c_str(), 0,
+                                       0,
-			(const char **)(&err_str), &erroffset, NULL);
+                                       &errnumber,
+                                       &erroffset,
+                                       NULL);
+  
+  if (p_pcre == NULL) {
+    PCRE2_UCHAR buffer[256];
+    pcre2_get_error_message(errnumber, buffer, sizeof(buffer));
+    cerr << "PCRE2 compilation failed at offset: " << erroffset << " with: " << buffer << endl;
+    exit(1);
+  }
+
+  match_data = pcre2_match_data_create_from_pattern(p_pcre, NULL);
+  
   while((c = fgetc(stream)) != EOF) {
       if(c == '\n') {
         // record end
         mode = "key";
         if(config.token != "") {
-	v1 = new char[line.length()];
+          //char **subs = new char*[2];
-	v2 = new char[line.length()];
+          char *subs[2];
-	sub_vec = new int[sub_len];
+          
-	num = pcre_exec(p_pcre, p_pcre_extra, (char *)line.c_str(),
+          num = pcre2_match(p_pcre, (PCRE2_SPTR)line.c_str(), (PCRE2_SIZE)line.length(), 0, 0, match_data, NULL);
-			(int)line.length(), 0, 0, (int *)sub_vec, sub_len);
+
           if(num < 0)
             cerr << "Token \"" << config.token << "\" did not match on \"" << line << "\"!\n";
           else if(num == 1)
             cerr << "Token " << config.token << " did not produce sub strings!\n";
           else {
-	  match = pcre_copy_substring((char *)line.c_str(), sub_vec, num, 1, v1, line.length());
+            ovector = pcre2_get_ovector_pointer(match_data);
-	  match = pcre_copy_substring((char *)line.c_str(), sub_vec, num, 2, v2, line.length());
+            
+            for (int i = 0; i < num; i++)  {
+              char * substring_start =  const_cast<char*>(line.c_str()) + ovector[2*i];
+
+              if (i == 2) {
+                  break;
+              }
+                        
+              subs[i] = substring_start;
+            }
+
+            free(ovector);
+
             if(config.reverse) {
-	    value = v1;
+              value = subs[0];
-	    key   = v2;
+              key   = subs[1];
             }
             else {
-	    value = v2;
+              value = subs[1];
-	    key   = v1;
+              key   = subs[0];
             }
           }
-	delete(sub_vec);
+          
-	pcre_free((void *)v1);
+          //delete(subs);
-	pcre_free((void *)v2);
+
+          
           line = "";
         }
         value = encode(value);
@@ -379,7 +414,10 @@ void Engine::from_input() {
           value += char(c);
       }
     }
-  pcre_free(p_pcre);
+
+  pcre2_match_data_free(match_data);
+  pcre2_code_free(p_pcre); 
+    
 #ifdef HAVE_BERKELEY
     db->close(0);
 #else
@@ -447,7 +485,6 @@ void Engine::insert() {
   }
 
 
-
   /*
    * update a database
    */
@@ -521,15 +558,14 @@ void Engine::update() {
   }
 
 
-
   /*
    * remove an entry
    */
   void Engine::remove() {
     init();
-  int ret;
     #ifdef HAVE_BERKELEY
     Dbt key((char *)config.key.c_str(), config.key.length() + 1);
+    int ret;
     if((ret = db->del(NULL, &key, 0)) != 0) {
       cerr << "Database error" << "(" << strerror(ret) << ")" << endl;
       exit(1);
@@ -537,13 +573,16 @@ void Engine::remove() {
     db->close(0);
 #else
     datum key   = {(char *)config.key.c_str(), config.key.length()};
-  ret = gdbm_delete(db, key);
+    int ret;
+    if((ret = gdbm_delete(db, key)) != 0) {
+      cerr << "Database error" << "(" << strerror(ret) << ")" << endl;
+      exit(1);
+    }
     gdbm_close(db);
 #endif
   }
 
 
-
   /*
    * search for specific data
    */
@@ -604,4 +643,3 @@ string Engine::decode(const string& data) {
     else
       return data;
   }
-

engine.h

@@ -58,9 +58,10 @@
 #include <string>
 
 extern "C" {
+#include "platform.h"
 #include <stdio.h>
 #include <stdlib.h>
-#include <pcre.h>
+#include <pcre2.h>
 }
 
 #ifdef HAVE_BERKELEY
@@ -74,8 +75,7 @@ extern "C" {
 #endif
 #endif
 
-#include "platform.h"
+#include <db_cxx.h>
-#include DB_CXX_HEADER
 
 #else
 

meson_options.txt

@@ -0,0 +1 @@
+# custom build options

rijndael.cc

@@ -1108,7 +1108,7 @@ int Rijndael::blockEncrypt(const UINT8 *input,int inputLen,UINT8 *outBuffer)
 					iv[3][0] = (iv[3][0] << 1) | (iv[3][1] >> 7);
 					iv[3][1] = (iv[3][1] << 1) | (iv[3][2] >> 7);
 					iv[3][2] = (iv[3][2] << 1) | (iv[3][3] >> 7);
-					iv[3][3] = (iv[3][3] << 1) | (outBuffer[k/8] >> (7-(k&7))) & 1;
+					iv[3][3] = (iv[3][3] << 1) | ((outBuffer[k/8] >> (7-(k&7))) & 1);
 				}
 			}
 		break;
@@ -1262,7 +1262,7 @@ int Rijndael::blockDecrypt(const UINT8 *input, int inputLen, UINT8 *outBuffer)
 					iv[3][0] = (iv[3][0] << 1) | (iv[3][1] >> 7);
 					iv[3][1] = (iv[3][1] << 1) | (iv[3][2] >> 7);
 					iv[3][2] = (iv[3][2] << 1) | (iv[3][3] >> 7);
-					iv[3][3] = (iv[3][3] << 1) | (input[k/8] >> (7-(k&7))) & 1;
+					iv[3][3] = (iv[3][3] << 1) | ((input[k/8] >> (7-(k&7))) & 1);
 					outBuffer[k/8] ^= (block[0] & 0x80) >> (k & 7);
 				}
 			}