1 files changed, 53 insertions, 0 deletions
diff --git a/botan/src/filters/fd_unix/fd_unix.cpp b/botan/src/filters/fd_unix/fd_unix.cpp
new file mode 100644
index 0000000..7f19b0a
--- /dev/null
+++ b/botan/src/filters/fd_unix/fd_unix.cpp
@@ -0,0 +1,53 @@
+/*
+* Pipe I/O for Unix
+* (C) 1999-2007 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/pipe.h>
+#include <botan/exceptn.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;
+   }
+
+}