magic: implement file descriptor support

1 files changed, 5 insertions, 4 deletions

diff --git a/cabinet/main.cpp b/cabinet/main.cpp
index 77a73ca..db2d43b 100644
--- a/cabinet/main.cpp
+++ b/cabinet/main.cpp
@@ -1,7 +1,8 @@
 #include <cabinet/magic.hpp>
 
+#include <fcntl.h>
+
 #include <cstdlib>
-#include <filesystem>
 #include <iostream>
 #include <print>
 
@@ -15,19 +16,19 @@ auto main(int argc, char ** argv) -> int
     return EXIT_FAILURE;
   }
 
-  auto magic = cab::magic::open(flags::follow_symlinks | flags::mime_type);
+  auto magic = cab::magic::open(flags::follow_symlinks | flags::mime_type | flags::forward_errors);
   if (!magic)
   {
     std::println(std::cerr, "Failed to initialize libmagic: {}", magic.error().message());
     return EXIT_FAILURE;
   }
 
-  auto mime_type = magic->process(std::filesystem::path{argv[1]});
+  auto fd = open(argv[1], O_RDONLY);
+  auto mime_type = magic->process(fd);
   if (!mime_type)
   {
     std::println(std::cerr, "Failed to determine file type: {}", mime_type.error());
     return EXIT_FAILURE;
   }
-
   std::println("{}: {}", argv[1], mime_type.value());
 }