Support reading from /proc

2 files changed, 10 insertions, 1 deletions

diff --git a/file.cpp b/file.cpp
index 0c28511..4e10035 100644
--- a/file.cpp
+++ b/file.cpp
@@ -8,10 +8,16 @@ using namespace std::string_literals;
 
 std::string Reichwein::File::getFile(const fs::path& filename)
 {
- std::ifstream file(filename.string(), std::ios::in | std::ios::binary | std::ios::ate);
+ std::ifstream file(filename.string(), std::ios::in | std::ios::binary);
 
  if (file.is_open()) {
+  file.seekg(0, std::ios::end);
   std::ifstream::pos_type fileSize = file.tellg();
+  if (fileSize < 0) { // on pseudo-files (e.g. /proc/*), this doesn't work. Use a slower workaround:
+   std::stringstream buffer;
+   buffer << file.rdbuf();
+   return buffer.str();
+  }
   file.seekg(0, std::ios::beg);
 
   std::string bytes(fileSize, ' ');
diff --git a/tests/test-file.cpp b/tests/test-file.cpp
new file mode 100644
index 0000000..13d0ded
--- /dev/null
+++ b/tests/test-file.cpp
@@ -0,0 +1,3 @@
+getFile
+
+getFile /proc