Merge branch 'master' of https://github.com/prownd/tigervnc

diff --cc BUILDING.txt
Simple merge

diff --cc CMakeLists.txt
Simple merge

diff --cc unix/vncpasswd/vncpasswd.cxx
index 877ebcbd4c84fef907fe3c9bca7e06d458fd22fa,b067719b6ce28e1ecb126495dabc269bd442e5ca..b17e73ddc69ff1d1ab6c8a3339901f8f4e7c0eaa
--- 1/unix/vncpasswd/vncpasswd.cxx
--- 2/unix/vncpasswd/vncpasswd.cxx
+++ b/unix/vncpasswd/vncpasswd.cxx
@@@ -116,8 -149,22 +149,22 @@@ static std::vector<uint8_t> readpasswor
        continue;
      }
  
+     if (first.size() > 8) {
+       fprintf(stderr,"Password should not be greater than 8 characters\nBecause only 8 valid characters are used - try again\n");
+       continue;
+     }
+ 
+ #ifdef HAVE_PWQUALITY
+     //the function return score of password quality
+     int r = check_passwd_pwquality(passwd);
+     if (r < 0){
+       printf("Password quality check failed, please set it correctly.\n");
+       continue;
+     }
+ #endif
+ 
      passwd = getpassword("Verify:");
 -    if (passwd == NULL) {
 +    if (passwd == nullptr) {
        perror("getpass error");
        exit(1);
      }