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In addition to unix domain sockets, Linux also supports an abstract namespace which is independent of the filesystem. In order to support it, add new CURLOPT_ABSTRACT_UNIX_SOCKET option which uses the same storage as CURLOPT_UNIX_SOCKET_PATH internally, along with a flag to specify abstract socket. On non-supporting platforms, the abstract address will be interpreted as an empty string and fail gracefully. Also add new --abstract-unix-socket tool parameter. Signed-off-by: Isaac Boukris <iboukris@gmail.com> Reported-by: Chungtsun Li (typeless) Reviewed-by: Daniel Stenberg Reviewed-by: Peter Wu Closes #1197 Fixes #1061
59 lines
2.5 KiB
Groff
59 lines
2.5 KiB
Groff
.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at https://curl.haxx.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.\"
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.TH CURLOPT_ABSTRACT_UNIX_SOCKET 3 "08 Jan 2017" "libcurl 7.53.0" "curl_easy_setopt options"
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.SH NAME
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CURLOPT_ABSTRACT_UNIX_SOCKET \- set an abstract Unix domain socket
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.SH SYNOPSIS
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ABSTRACT_UNIX_SOCKET, char *path);
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.SH DESCRIPTION
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Enables the use of an abstract Unix domain socket instead of establishing a TCP
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connection to a host. The parameter should be a char * to a zero terminated string
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holding the path of the socket. The path will be set to \fIpath\fP prefixed by a
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NULL byte (this is the convention for abstract sockets, however it should be stressed
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that the path passed to this function should not contain a leading NULL).
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On non-supporting platforms, the abstract address will be interpreted as an empty
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string and fail gracefully, generating a run-time error.
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This option shares the same semantics as
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.BR CURLOPT_UNIX_SOCKET_PATH "(3)
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in which documentation more details can be found. Internally, these two options share
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the same storage and therefore only one of them can be set per handle.
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.SH DEFAULT
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Default is NULL.
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.SH EXAMPLE
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.nf
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curl_easy_setopt(curl_handle, CURLOPT_ABSTRACT_UNIX_SOCKET, "/tmp/foo.sock");
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curl_easy_setopt(curl_handle, CURLOPT_URL, "http://localhost/");
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.fi
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.SH AVAILABILITY
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Since 7.53.0.
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH "SEE ALSO"
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.BR CURLOPT_UNIX_SOCKET_PATH "(3), " unix "(7), "
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