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sws: add UNIX domain socket support

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This extends sws with a --unix-socket option which causes the port to
be ignored (as the server now listens on the path specified by
--unix-socket). This feature will be available in the following patch
that enables checking for UNIX domain socket support.

Proxy support (CONNECT) is not considered nor tested. It does not make
sense anyway, first connecting through a TCP proxy, then let that TCP
proxy connect to a UNIX socket.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
This commit is contained in:
Peter Wu 2014-12-03 02:20:00 +01:00 committed by Daniel Stenberg
parent fb7d7e0022
commit e9c7a86220
2 changed files with 61 additions and 1 deletions
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9
tests/server/server_sockaddr.h
View File

@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -23,12 +23,19 @@
***************************************************************************/
#include "server_setup.h"
#ifdef HAVE_SYS_UN_H
#include <sys/un.h> /* for sockaddr_un */
#endif
typedef union {
struct sockaddr sa;
struct sockaddr_in sa4;
#ifdef ENABLE_IPV6
struct sockaddr_in6 sa6;
#endif
#ifdef USE_UNIX_SOCKETS
struct sockaddr_un sau;
#endif
} srvr_sockaddr_union_t;
#endif /* HEADER_CURL_SERVER_SOCKADDR_H */

53
tests/server/sws.c
View File

@ -70,6 +70,9 @@ static enum {
#ifdef ENABLE_IPV6
, socket_domain_inet6 = AF_INET6
#endif
#ifdef USE_UNIX_SOCKETS
socket_domain_unix = AF_UNIX,
#endif
} socket_domain = AF_INET;
static bool use_gopher = FALSE;
static int serverlogslocked = 0;
@ -1363,6 +1366,11 @@ static curl_socket_t connect_to(const char *ipaddr, unsigned short port)
rc = connect(serverfd, &serveraddr.sa, sizeof(serveraddr.sa6));
break;
#endif /* ENABLE_IPV6 */
#ifdef USE_UNIX_SOCKETS
case AF_UNIX:
logmsg("Proxying through UNIX socket is not (yet?) supported.");
return CURL_SOCKET_BAD;
#endif /* USE_UNIX_SOCKETS */
}
if(got_exit_signal) {
@ -1946,6 +1954,10 @@ int main(int argc, char *argv[])
int wrotepidfile = 0;
int flag;
unsigned short port = DEFAULT_PORT;
#ifdef USE_UNIX_SOCKETS
const char *unix_socket = NULL;
bool unlink_socket = false;
#endif
char *pidname= (char *)".http.pid";
struct httprequest req;
int rc;
@ -1967,6 +1979,9 @@ int main(int argc, char *argv[])
puts("sws IPv4"
#ifdef ENABLE_IPV6
"/IPv6"
#endif
#ifdef USE_UNIX_SOCKETS
"/unix"
#endif
);
return 0;
@ -2000,6 +2015,23 @@ int main(int argc, char *argv[])
#endif
arg++;
}
else if(!strcmp("--unix-socket", argv[arg])) {
arg++;
if(argc>arg) {
#ifdef USE_UNIX_SOCKETS
unix_socket = argv[arg];
if(strlen(unix_socket) >= sizeof(me.sau.sun_path)) {
fprintf(stderr, "sws: socket path must be shorter than %zu chars\n",
sizeof(me.sau.sun_path));
return 0;
}
socket_type = "unix";
socket_domain = AF_UNIX;
location_str = unix_socket;
#endif
arg++;
}
}
else if(!strcmp("--port", argv[arg])) {
arg++;
if(argc>arg) {
@ -2041,6 +2073,7 @@ int main(int argc, char *argv[])
" --pidfile [file]\n"
" --ipv4\n"
" --ipv6\n"
" --unix-socket [file]\n"
" --port [port]\n"
" --srcdir [path]\n"
" --connect [ip4-addr]\n"
@ -2104,6 +2137,14 @@ int main(int argc, char *argv[])
rc = bind(sock, &me.sa, sizeof(me.sa6));
break;
#endif /* ENABLE_IPV6 */
#ifdef USE_UNIX_SOCKETS
case AF_UNIX:
memset(&me.sau, 0, sizeof(me.sau));
me.sau.sun_family = AF_UNIX;
strncpy(me.sau.sun_path, unix_socket, sizeof(me.sau.sun_path));
rc = bind(sock, &me.sa, sizeof(me.sau));
break;
#endif /* USE_UNIX_SOCKETS */
}
if(0 != rc) {
error = SOCKERRNO;
@ -2124,6 +2165,11 @@ int main(int argc, char *argv[])
goto sws_cleanup;
}
#ifdef USE_UNIX_SOCKETS
/* listen succeeds, so let's assume a valid listening UNIX socket */
unlink_socket = true;
#endif
/*
** As soon as this server writes its pid file the test harness will
** attempt to connect to this server and initiate its verification.
@ -2264,6 +2310,13 @@ sws_cleanup:
if(sock != CURL_SOCKET_BAD)
sclose(sock);
#ifdef USE_UNIX_SOCKETS
if(unlink_socket && socket_domain == AF_UNIX) {
rc = unlink(unix_socket);
logmsg("unlink(%s) = %d (%s)", unix_socket, rc, strerror(rc));
}
#endif
if(got_exit_signal)
logmsg("signalled to die");