1 files changed, 47 insertions, 0 deletions
diff --git a/lib_generic/string.c b/lib_generic/string.c
index b375b8124..6e69457e5 100644
--- a/lib_generic/string.c
+++ b/lib_generic/string.c
@@ -307,6 +307,53 @@ char * strpbrk(const char * cs,const char * ct)
 }
 #endif
 
+#ifndef __HAVE_ARCH_STRTOK_R
+/**
+ * strtok - Split a string into tokens
+ * @s: The string to be searched
+ * @ct: The characters to search for
+ *
+ * Dumped from rockbox-3.1 strok.c:
+ *     Copyright (C) 2002 by Daniel Stenberg
+ *     $Id: strtok.c 17847 2008-06-28 18:10:04Z bagder $
+ */
+char *
+strtok_r(char *ptr, const char *sep, char **end)
+{
+    if (!ptr)
+        /* we got NULL input so then we get our last position instead */
+        ptr = *end;
+
+    /* pass all letters that are including in the separator string */
+    while (*ptr && strchr(sep, *ptr))
+        ++ptr;
+
+    if (*ptr) {
+        /* so this is where the next piece of string starts */
+        char *start = ptr;
+
+        /* set the end pointer to the first byte after the start */
+        *end = start + 1;
+
+        /* scan through the string to find where it ends, it ends on a
+           null byte or a character that exists in the separator string */
+        while (**end && !strchr(sep, **end))
+            ++*end;
+
+        if (**end) {
+            /* the end is not a null byte */
+            **end = '\0';  /* zero terminate it! */
+            ++*end;        /* advance last pointer to beyond the null byte */
+        }
+
+        return start; /* return the position where the string starts */
+    }
+
+    /* we ended up on a null byte, there are no more strings to find! */
+    return NULL;
+}
+#endif
+
 #ifndef __HAVE_ARCH_STRTOK
 /**
  * strtok - Split a string into tokens