#include <nng/nng.h>
int nng_url_parse(nng_url **urlp, const char *str);| This documentation is for version v1.7.1 of NNG, but the latest released version is v1.8.0. see the documentation for v1.8.0 for the most up-to-date information. |
nng_url_parse(3)
NAME
nng_url_parse - create URL structure from a string
SYNOPSIS
DESCRIPTION
The nng_url_parse() function parses the string str containing an
RFC 3986 compliant URL, and creates
an
nng_url structure containing the results.
A pointer to the resulting structure is stored in urlp.
The structure may disposed of when no longer needed by calling
nng_url_free().
URL Canonicalization
The nng_url_parse() function also canonicalizes the results, as
follows:
-
The URL is parsed into the various components.
-
The
u_scheme,u_hostname,u_host, andu_portmembers are converted to lower case. -
Percent-encoded values for unreserved characters converted to their unencoded forms.
-
Additionally URL percent-encoded values for characters in the path and with numeric values larger than 127 (i.e. not ASCII) are decoded.
-
The resulting
u_pathis checked for invalid UTF-8 sequences, consisting of surrogate pairs, illegal byte sequences, or overlong encodings. If this check fails, then the entire URL is considered invalid, and the function returnsNNG_EINVAL. -
Path segments consisting of
.and..are resolved as per RFC 3986 6.2.2.3. -
Further, empty path segments are removed, meaning that duplicate slash (
/) separators are removed from the path. -
If a port was not specified, but the scheme defines a default port, then
u_portwill be filled in with the value of the default port.
Only the u_userinfo, u_query, and u_fragment members will ever be
NULL. The other members will be filled in with either default values
or the empty string if they cannot be determined from str.
|
RETURN VALUES
This function returns 0 on success, and non-zero otherwise.
ERRORS
NNG_ENOMEM
|
Insufficient free memory exists to allocate a message. |
NNG_EINVAL
|
An invalid URL was supplied. |