1 files changed, 35 insertions, 0 deletions
diff --git a/klm/util/exception.cc b/klm/util/exception.cc
new file mode 100644
index 00000000..dd337a76
--- /dev/null
+++ b/klm/util/exception.cc
@@ -0,0 +1,35 @@
+#include "util/exception.hh"
+
+#include <errno.h>
+#include <string.h>
+
+namespace util {
+
+Exception::Exception() throw() {}
+Exception::~Exception() throw() {}
+
+namespace {
+// The XOPEN version.
+const char *HandleStrerror(int ret, const char *buf) {
+  if (!ret) return buf;
+  return NULL;
+}
+
+// The GNU version.
+const char *HandleStrerror(const char *ret, const char *buf) {
+  return ret;
+}
+} // namespace
+
+ErrnoException::ErrnoException() throw() : errno_(errno) {
+  char buf[200];
+  buf[0] = 0;
+  const char *add = HandleStrerror(strerror_r(errno, buf, 200), buf);
+  if (add) {
+    *this << add << ' ';
+  }
+}
+
+ErrnoException::~ErrnoException() throw() {}
+
+} // namespace util