LibCore: Use syscall wrappers in MappedFile::map_from_fd_and_close()

cubiclove · Nov 23, 2021 · a62d16f · a62d16f
1 parent 58fb3eb
commit a62d16f
Showing 1 changed file with 4 additions and 6 deletions.
diff --git a/Userland/Libraries/LibCore/MappedFile.cpp b/Userland/Libraries/LibCore/MappedFile.cpp
@@ -7,6 +7,7 @@
 #include <AK/ScopeGuard.h>
 #include <AK/String.h>
 #include <LibCore/MappedFile.h>
+#include <LibCore/System.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/mman.h>
@@ -26,18 +27,15 @@ ErrorOr<NonnullRefPtr<MappedFile>> MappedFile::map(String const& path)
 
 ErrorOr<NonnullRefPtr<MappedFile>> MappedFile::map_from_fd_and_close(int fd, [[maybe_unused]] String const& path)
 {
- if (fcntl(fd, F_SETFD, FD_CLOEXEC) < 0)
- return Error::from_errno(errno);
+ TRY(Core::System::fcntl(fd, F_SETFD, FD_CLOEXEC));
 
  ScopeGuard fd_close_guard = [fd] {
  close(fd);
  };
 
- struct stat st;
- if (fstat(fd, &st) < 0)
- return Error::from_errno(errno);
+ auto stat = TRY(Core::System::fstat(fd));
+ auto size = stat.st_size;
 
- auto size = st.st_size;
  auto* ptr = mmap(nullptr, size, PROT_READ, MAP_SHARED, fd, 0);
 
  if (ptr == MAP_FAILED)