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CURLOPT_AB...NIX_SOCKET(3) Library Functions Manual CURLOPT_AB...NIX_SOCKET(3) NAME CURLOPT_ABSTRACT_UNIX_SOCKET - abstract Unix domain socket SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ABSTRACT_UNIX_SOCKET, char *path); DESCRIPTION Enables the use of an abstract Unix domain socket instead of establishing a TCP connection to a host. The parameter should be a char * to a null-termi- nated string holding the path of the socket. The path is set to path pre- fixed by a NULL byte. This is the convention for abstract sockets, however it should be stressed that the path passed to this function should not con- tain a leading NULL byte. On non-supporting platforms, the abstract address is interpreted as an empty string and fails gracefully, generating a runtime error. This option shares the same semantics as CURLOPT_UNIX_SOCKET_PATH(3) in which documentation more details can be found. Internally, these two op- tions share the same storage and therefore only one of them can be set per handle. DEFAULT NULL PROTOCOLS This functionality affects all supported protocols EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; curl_easy_setopt(curl, CURLOPT_ABSTRACT_UNIX_SOCKET, "/tmp/foo.sock"); curl_easy_setopt(curl, CURLOPT_URL, "http://localhost/"); /* Perform the request */ result = curl_easy_perform(curl); curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.53.0 RETURN VALUE curl_easy_setopt(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLOPT_UNIX_SOCKET_PATH(3), unix(7) libcurl 2026-06-11 CURLOPT_AB...NIX_SOCKET(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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