HostInfoOpenBSD.cpp

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//===-- HostInfoOpenBSD.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/openbsd/HostInfoOpenBSD.h"
#include "lldb/Host/Config.h"
 
#include <climits>
#include <cstdio>
#include <cstring>
#include <optional>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <unistd.h>
 
using namespace lldb_private;
 
llvm::VersionTuple HostInfoOpenBSD::GetOSVersion() {
  struct utsname un;
 
  ::memset(&un, 0, sizeof(un));
  if (::uname(&un) < 0)
    return llvm::VersionTuple();
 
  uint32_t major, minor;
  int status = ::sscanf(un.release, "%" PRIu32 ".%" PRIu32, &major, &minor);
  switch (status) {
  case 1:
    return llvm::VersionTuple(major);
  case 2:
    return llvm::VersionTuple(major, minor);
  }
  return llvm::VersionTuple();
}
 
std::optional<std::string> HostInfoOpenBSD::GetOSBuildString() {
  int mib[2] = {CTL_KERN, KERN_OSREV};
  uint32_t osrev = 0;
  size_t osrev_len = sizeof(osrev);
 
  if (::sysctl(mib, 2, &osrev, &osrev_len, NULL, 0) == 0)
    return llvm::formatv("{0,8:8}", osrev).str();
 
  return std::nullopt;
}
 
FileSpec HostInfoOpenBSD::GetProgramFileSpec() {
  static FileSpec g_program_filespec;
 
#if HAVE_GETEXECPATH
  if (!g_program_filespec) {
    char path[PATH_MAX];
 
    if (getexecpath(path, sizeof(path)) != -1)
      g_program_filespec.SetFile(path, FileSpec::Style::native);
  }
#endif
  return g_program_filespec;
}