[llvm-commits] CVS: llvm/lib/System/Win32/Path.cpp

[Reid Spencer]

Changes in directory llvm/lib/System/Win32:

Path.cpp updated: 1.14 -> 1.15
---
Log message:

Add the getMagicNumber method.
Patch contributed by Henrik Bach. Thanks Henrik!


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Diffs of the changes:  (+19 -0)

Index: llvm/lib/System/Win32/Path.cpp
diff -u llvm/lib/System/Win32/Path.cpp:1.14 llvm/lib/System/Win32/Path.cpp:1.15
--- llvm/lib/System/Win32/Path.cpp:1.14	Mon Dec 13 23:26:43 2004
+++ llvm/lib/System/Win32/Path.cpp	Tue Dec 14 12:42:13 2004
@@ -565,6 +565,25 @@
   return true;
 }
 
+bool Path::getMagicNumber(std::string& Magic, unsigned len) const {
+  if (!isFile())
+    return false;
+  assert(len < 1024 && "Request for magic string too long");
+  char* buf = (char*) alloca(1 + len);
+  std::ofstream ofs(path.c_str(),std::ofstream::in);
+  if (!ofs.is_open())
+    return false;
+  std::ifstream ifs(path.c_str());
+  if (!ifs.is_open())
+    return false;
+  ifs.read(buf, len);
+  ofs.close();
+  ifs.close();
+  buf[len] = '\0';
+  Magic = buf;
+  return true;
+}
+
 }
 }