1 files changed, 47 insertions, 0 deletions
diff --git a/polycom_xmit/util.c b/polycom_xmit/util.c
new file mode 100644
index 0000000..d637174
--- /dev/null
+++ b/polycom_xmit/util.c
@@ -0,0 +1,47 @@
+#include "project.h"
+
+
+char *ICACHE_FLASH_ATTR
+bounded_strstr (char *haystack, uint32_t len, char *needle)
+{
+  char *end = haystack + len;
+  char *hptr, *nptr;
+
+  if (!*needle)
+    return NULL;
+
+  for (; (*haystack) && (haystack < end); ++haystack)
+    {
+
+      hptr = haystack;
+      nptr = needle;
+
+      while ((*hptr) == (*nptr))
+        {
+          nptr++;
+          hptr++;
+          if (!*nptr)
+            return haystack;
+          if (hptr >= end)
+            return NULL;
+        }
+    }
+
+  return NULL;
+}
+
+
+bool
+util_isspace (char c)
+{
+  switch (c)
+    {
+    case ' ':
+    case '\r':
+    case '\t':
+    case '\n':
+      return true;
+    default:
+      return false;
+    }
+}