1 files changed, 70 insertions, 0 deletions
diff --git a/test/core/util/parse_hexstring.c b/test/core/util/parse_hexstring.c
new file mode 100644
index 0000000000..888d03bc68
--- /dev/null
+++ b/test/core/util/parse_hexstring.c
@@ -0,0 +1,70 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/util/parse_hexstring.h"
+#include <grpc/support/log.h>
+
+gpr_slice parse_hexstring(const char *hexstring) {
+  int nibbles = 0;
+  const char *p = 0;
+  gpr_uint8 *out;
+  gpr_uint8 temp;
+  gpr_slice slice;
+
+  for (p = hexstring; *p; p++) {
+    nibbles += (*p >= '0' && *p <= '9') || (*p >= 'a' && *p <= 'f');
+  }
+
+  GPR_ASSERT((nibbles & 1) == 0);
+
+  slice = gpr_slice_malloc(nibbles / 2);
+  out = GPR_SLICE_START_PTR(slice);
+
+  nibbles = 0;
+  temp = 0;
+  for (p = hexstring; *p; p++) {
+    if (*p >= '0' && *p <= '9') {
+      temp = (temp << 4) | (*p - '0');
+      nibbles++;
+    } else if (*p >= 'a' && *p <= 'f') {
+      temp = (temp << 4) | (*p - 'a' + 10);
+      nibbles++;
+    }
+    if (nibbles == 2) {
+      *out++ = temp;
+      nibbles = 0;
+    }
+  }
+
+  return slice;
+}