CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CURLU, void *pointer);
.SH DESCRIPTION
Pass in a pointer to the \fIURL\fP to work with. The parameter should be a
-CURLU *. Setting \fICURLOPT_CURLU(3)\fP will explicitly override \fICURLOPT_URL(3)\fP.
+CURLU *. Setting \fICURLOPT_CURLU(3)\fP will explicitly override
+\fICURLOPT_URL(3)\fP.
+\fICURLOPT_URL(3)\fP or \fICURLOPT_CURLU(3)\fP \fBmust\fP be set before a
+transfer is started.
+
+libcurl will use this handle and its contents read-only and will not change
+its contents. An application can very well update the contents of the URL
+handle after a transfer is done and if the same handle is then used in a
+subsequest request the updated contents will then be used.
.SH DEFAULT
The default value of this parameter is NULL.
.SH PROTOCOLS
support. That may be useful if you accept the URL from an external source and
want to limit the accessibility.
-\fICURLOPT_URL(3)\fP is the only option that \fBmust\fP be set before a
+The \fICURLOPT_URL(3)\fP string will be ignored if \fICURLOPT_CURLU(3)\fP is
+set.
+
+\fICURLOPT_URL(3)\fP or \fICURLOPT_CURLU(3)\fP \fBmust\fP be set before a
transfer is started.
The host part of the URL contains the address of the server that you want to
.BR CURLOPT_VERBOSE "(3), " CURLOPT_PROTOCOLS "(3), "
.BR CURLOPT_FORBID_REUSE "(3), " CURLOPT_FRESH_CONNECT "(3), "
.BR curl_easy_perform "(3), "
-.BR CURLINFO_REDIRECT_URL "(3), " CURLOPT_PATH_AS_IS "(3), "
+.BR CURLINFO_REDIRECT_URL "(3), " CURLOPT_PATH_AS_IS "(3), " CURLOPT_CURLU "(3), "