text: //===-- HostInfoFreeBSD.cpp -----------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #include "lldb/Host/freebsd/HostInfoFreeBSD.h"
  
  #include <stdio.h>
  #include <string.h>
  #include <sys/sysctl.h>
  #include <sys/types.h>
  #include <sys/utsname.h>
  #include <unistd.h>
  
  using namespace lldb_private;
  
  llvm::VersionTuple HostInfoFreeBSD::GetOSVersion() {
    struct utsname un;
  
    ::memset(&un, 0, sizeof(utsname));
    if (uname(&un) < 0)
      return llvm::VersionTuple();
  
    unsigned major, minor;
    if (2 == sscanf(un.release, "%u.%u", &major, &minor))
      return llvm::VersionTuple(major, minor);
    return llvm::VersionTuple();
  }
  
  bool HostInfoFreeBSD::GetOSBuildString(std::string &s) {
    int mib[2] = {CTL_KERN, KERN_OSREV};
    char osrev_str[12];
    uint32_t osrev = 0;
    size_t osrev_len = sizeof(osrev);
  
    if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0) {
      ::snprintf(osrev_str, sizeof(osrev_str), "%-8.8u", osrev);
      s.assign(osrev_str);
      return true;
    }
  
    s.clear();
    return false;
  }
  
  bool HostInfoFreeBSD::GetOSKernelDescription(std::string &s) {
    struct utsname un;
  
    ::memset(&un, 0, sizeof(utsname));
    s.clear();
  
    if (uname(&un) < 0)
      return false;
  
    s.assign(un.version);
  
    return true;
  }
  
  FileSpec HostInfoFreeBSD::GetProgramFileSpec() {
    static FileSpec g_program_filespec;
    if (!g_program_filespec) {
      int exe_path_mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, getpid()};
      char exe_path[PATH_MAX];
      size_t exe_path_size = sizeof(exe_path);
      if (sysctl(exe_path_mib, 4, exe_path, &exe_path_size, NULL, 0) == 0)
        g_program_filespec.SetFile(exe_path, FileSpec::Style::native);
    }
    return g_program_filespec;
  }
  