Document the URL syntax

README

@@ -23,6 +23,21 @@ stat(), read(), ...
 
 examples/nfsclient-sync.c provides examples on how to use this API
 
+URL-FORMAT:
+===========
+Libnfs uses RFC2224 style URLs extended with libnfs specific url arguments some minor extensions.
+The basic syntax of these URLs is :
+
+nfs://<server|ipv4>/path[?arg=val[&arg=val]*]
+
+Arguments supported by libnfs are :
+ tcp-syncnt=<int>  : Number of SYNs to send during the seccion establish
+                     before failing settin up the tcp connection to the
+                     server.
+ uid=<int>         : UID value to use when talking to the server.
+                     default it 65534 on Windows and getuid() on unixen.
+ gid=<int>         : GID value to use when talking to the server.
+                     default it 65534 on Windows and getgid() on unixen.
 
 
 ROOT vs NON-ROOT

include/nfsc/libnfs.h

@@ -111,6 +111,24 @@ EXTERN struct nfs_context *nfs_init_context(void);
 EXTERN void nfs_destroy_context(struct nfs_context *nfs);
 
 
+/*
+ * URL parsing functions.
+ * These functions all parse a URL of the form 
+ * nfs://server/path/file?argv=val[&arg=val]*
+ * and returns a nfs_url.
+ *
+ * Apart from parsing the URL the functions will also update
+ * the nfs context to reflect settings controlled via url arguments.
+ *
+ * Current URL arguments are :
+ * tcp-syncnt=<int>  : Number of SYNs to send during the seccion establish
+ *                     before failing settin up the tcp connection to the
+ *                     server.
+ * uid=<int>         : UID value to use when talking to the server.
+ *                     default it 65534 on Windows and getuid() on unixen.
+ * gid=<int>         : GID value to use when talking to the server.
+ *                     default it 65534 on Windows and getgid() on unixen.
+ */
 /*
  * Parse a complete NFS URL including, server, path and
  * filename. Fail if any component is missing.