1 files changed, 50 insertions, 0 deletions
diff --git a/modules/fd_unix/fd_unix.cpp b/modules/fd_unix/fd_unix.cpp
new file mode 100644
index 000000000..8b7b2648a
--- /dev/null
+++ b/modules/fd_unix/fd_unix.cpp
@@ -0,0 +1,50 @@
+/*************************************************
+* Pipe I/O for Unix Source File                  *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/pipe.h>
+#include <unistd.h>
+
+namespace Botan {
+
+/*************************************************
+* Write data from a pipe into a Unix fd          *
+*************************************************/
+int operator<<(int fd, Pipe& pipe)
+   {
+   SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+   while(pipe.remaining())
+      {
+      u32bit got = pipe.read(buffer, buffer.size());
+      u32bit position = 0;
+      while(got)
+         {
+         ssize_t ret = write(fd, buffer + position, got);
+         if(ret == -1)
+            throw Stream_IO_Error("Pipe output operator (unixfd) has failed");
+         position += ret;
+         got -= ret;
+         }
+      }
+   return fd;
+   }
+
+/*************************************************
+* Read data from a Unix fd into a pipe           *
+*************************************************/
+int operator>>(int fd, Pipe& pipe)
+   {
+   SecureVector<byte> buffer(DEFAULT_BUFFERSIZE);
+   while(true)
+      {
+      ssize_t ret = read(fd, buffer, buffer.size());
+      if(ret == 0) break;
+      if(ret == -1)
+         throw Stream_IO_Error("Pipe input operator (unixfd) has failed");
+      pipe.write(buffer, ret);
+      }
+   return fd;
+   }
+
+}