diff options
| -rw-r--r-- | hscript/meta.cc | 53 | ||||
| -rw-r--r-- | hscript/script.cc | 10 |
2 files changed, 59 insertions, 4 deletions
diff --git a/hscript/meta.cc b/hscript/meta.cc index 33a9326..6bf4587 100644 --- a/hscript/meta.cc +++ b/hscript/meta.cc @@ -10,7 +10,9 @@ * SPDX-License-Identifier: AGPL-3.0-only */ +#include <fstream> #include <regex> +#include <unistd.h> #include "meta.hh" #include "util/output.hh" @@ -63,9 +65,54 @@ bool Hostname::validate(ScriptOptions) const { return !any_failure; } -bool Hostname::execute(ScriptOptions) const { - /* Write the hostname to /etc/hostname in the target environment. */ - return false; +bool Hostname::execute(ScriptOptions opts) const { + /* Set the hostname of the target computer */ + std::string actual; + + if(this->_value.size() > 64) { + /* Linux has a nodename limit of 64 characters. + * That's fine, because we have a limit of 64 chars per segment. + * Assuming a dot is present, just chop at the first dot. */ + std::string::size_type dot = this->_value.find_first_of('.'); + if(dot == std::string::npos) { + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: nodename too long", + "Linux requires nodename to be <= 64 characters."); + return false; + } + std::copy_n(this->_value.cbegin(), dot, actual.begin()); + } else { + actual = this->_value; + } + + /* Runner.Execute.hostname. */ + if(opts.test(Simulate)) { + output_info("installfile:" + std::to_string(this->lineno()), + "hostname: set hostname to '" + actual + "'"); + } else { + if(sethostname(actual.c_str(), actual.size()) == -1) { + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: failed to set host name", + std::string(strerror(errno))); + return false; + } + } + + /* Runner.Execute.hostname.Write. */ + if(opts.test(Simulate)) { + output_info("installfile:" + std::to_string(this->lineno()), + "hostname: write '" + actual + "' to /etc/hostname"); + } else { + std::ofstream hostname_f("/target/etc/hostname"); + if(!hostname_f) { + output_error("installfile:" + std::to_string(this->lineno()), + "hostname: could not open /etc/hostname for writing"); + return false; + } + hostname_f << actual; + } + + return true; } diff --git a/hscript/script.cc b/hscript/script.cc index a31fbc3..0583a3c 100644 --- a/hscript/script.cc +++ b/hscript/script.cc @@ -387,11 +387,19 @@ bool Script::execute() const { output_step_end("validate"); if(!success) { /* Runner.Execute.Verify.Failure */ - output_error("validator", "The HorizonScript failed validation.", + output_error("validator", "The HorizonScript failed validation", "Check the output from the validator."); return false; } + output_step_start("metadata"); + if(!this->internal->hostname->execute(opts) || + !this->internal->rootpw->execute(opts)) { + output_error("metadata", "The HorizonScript failed to execute", + "Check the log file for more details."); + return false; + } + output_step_end("metadata"); return false; } |