oxmox
17f68cf8fe
git-subtree-dir: external/nng git-subtree-split: 169221da8d53b2ca4fda76f894bee8505887a7c6
59 lines
1.7 KiB
Text
59 lines
1.7 KiB
Text
= nng_http_handler_set_host(3http)
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//
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// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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//
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// This document is supplied under the terms of the MIT License, a
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// copy of which should be located in the distribution where this
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// file was obtained (LICENSE.txt). A copy of the license may also be
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// found online at https://opensource.org/licenses/MIT.
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//
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== NAME
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nng_http_handler_set_host - set host for HTTP handler
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== SYNOPSIS
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[source, c]
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----
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#include <nng/nng.h>
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#include <nng/supplemental/http/http.h>
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int nng_http_handler_set_host(nng_http_handler *handler, const char *host);
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----
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== DESCRIPTION
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The `nng_http_handler_set_host()` function is used to limit the scope of the
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_handler_ so that it will only be called when the specified _host_ matches
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the value of the `Host:` HTTP header.
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TIP: This can be used to create servers with multiple handlers for virtual
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hosting.
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The value of the _host_ can include a colon and port, and should match
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exactly the value of the `Host` header sent by the client.
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(Canonicalization of the host name is performed though.)
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TIP: As the server framework does not support listening on multiple
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ports, the port number can be elided.
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The matching test only considers
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the hostname or IP address, and ignores any trailing port number.
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== RETURN VALUES
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This function returns 0 on success, and non-zero otherwise.
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== ERRORS
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[horizontal]
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`NNG_ENOMEM`:: Insufficient free memory to perform the operation.
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`NNG_ENOTSUP`:: No support for HTTP in the library.
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== SEE ALSO
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[.text-left]
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xref:nng_http_handler_alloc.3http.adoc[nng_http_handler_alloc(3http)],
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xref:nng_http_server_add_handler.3http.adoc[nng_http_server_add_handler(3http)],
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xref:nng.7.adoc[nng(7)]
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