diff options
Diffstat (limited to 'hscript')
| -rw-r--r-- | hscript/meta.cc | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/hscript/meta.cc b/hscript/meta.cc index 84e026e..5897c8b 100644 --- a/hscript/meta.cc +++ b/hscript/meta.cc @@ -31,7 +31,36 @@ Key *Hostname::parseFromData(const std::string data, int lineno, int *errors, bool Hostname::validate(ScriptOptions) const { /* Validate that the name is a valid machine or DNS name */ - return false; + bool any_failure = false; + std::string::size_type last_dot = 0, next_dot = 0; + + if(!isalpha(this->_value[0])) { + any_failure = true; + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: must start with alphabetical character"); + } + + if(this->_value.size() > 320) { + any_failure = true; + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: value too long", + "valid host names must be less than 320 characters"); + } + + do { + next_dot = this->_value.find_first_of('.', next_dot + 1); + if(next_dot == std::string::npos) { + next_dot = this->_value.size(); + } + if(next_dot - last_dot > 64) { + any_failure = true; + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: component too long", + "each component must be less than 64 characters"); + } + } while(next_dot != this->_value.size()); + + return any_failure; } bool Hostname::execute(ScriptOptions) const { |