mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
![Jens Osterkamp](/assets/img/avatar_default.png)
If the user wants to create a chardev of type socket but forgets to give a host= option, qemu_opt_get returns NULL. This NULL pointer is then fed into strlen a few lines below without a check which results in a segfault. This fixes it. Signed-off-by: Jens Osterkamp <jens@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
676 lines
19 KiB
C
676 lines
19 KiB
C
/*
|
|
* inet and unix socket functions for qemu
|
|
*
|
|
* (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; under version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
|
|
#include "qemu_socket.h"
|
|
#include "qemu-common.h" /* for qemu_isdigit */
|
|
|
|
#ifndef AI_ADDRCONFIG
|
|
# define AI_ADDRCONFIG 0
|
|
#endif
|
|
|
|
static int sockets_debug = 0;
|
|
static const int on=1, off=0;
|
|
|
|
/* used temporarely until all users are converted to QemuOpts */
|
|
static QemuOptsList dummy_opts = {
|
|
.name = "dummy",
|
|
.head = QTAILQ_HEAD_INITIALIZER(dummy_opts.head),
|
|
.desc = {
|
|
{
|
|
.name = "path",
|
|
.type = QEMU_OPT_STRING,
|
|
},{
|
|
.name = "host",
|
|
.type = QEMU_OPT_STRING,
|
|
},{
|
|
.name = "port",
|
|
.type = QEMU_OPT_STRING,
|
|
},{
|
|
.name = "to",
|
|
.type = QEMU_OPT_NUMBER,
|
|
},{
|
|
.name = "ipv4",
|
|
.type = QEMU_OPT_BOOL,
|
|
},{
|
|
.name = "ipv6",
|
|
.type = QEMU_OPT_BOOL,
|
|
},
|
|
{ /* end if list */ }
|
|
},
|
|
};
|
|
|
|
static int inet_getport(struct addrinfo *e)
|
|
{
|
|
struct sockaddr_in *i4;
|
|
struct sockaddr_in6 *i6;
|
|
|
|
switch (e->ai_family) {
|
|
case PF_INET6:
|
|
i6 = (void*)e->ai_addr;
|
|
return ntohs(i6->sin6_port);
|
|
case PF_INET:
|
|
i4 = (void*)e->ai_addr;
|
|
return ntohs(i4->sin_port);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void inet_setport(struct addrinfo *e, int port)
|
|
{
|
|
struct sockaddr_in *i4;
|
|
struct sockaddr_in6 *i6;
|
|
|
|
switch (e->ai_family) {
|
|
case PF_INET6:
|
|
i6 = (void*)e->ai_addr;
|
|
i6->sin6_port = htons(port);
|
|
break;
|
|
case PF_INET:
|
|
i4 = (void*)e->ai_addr;
|
|
i4->sin_port = htons(port);
|
|
break;
|
|
}
|
|
}
|
|
|
|
const char *inet_strfamily(int family)
|
|
{
|
|
switch (family) {
|
|
case PF_INET6: return "ipv6";
|
|
case PF_INET: return "ipv4";
|
|
case PF_UNIX: return "unix";
|
|
}
|
|
return "unknown";
|
|
}
|
|
|
|
static void inet_print_addrinfo(const char *tag, struct addrinfo *res)
|
|
{
|
|
struct addrinfo *e;
|
|
char uaddr[INET6_ADDRSTRLEN+1];
|
|
char uport[33];
|
|
|
|
for (e = res; e != NULL; e = e->ai_next) {
|
|
getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
|
|
uaddr,INET6_ADDRSTRLEN,uport,32,
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
fprintf(stderr,"%s: getaddrinfo: family %s, host %s, port %s\n",
|
|
tag, inet_strfamily(e->ai_family), uaddr, uport);
|
|
}
|
|
}
|
|
|
|
int inet_listen_opts(QemuOpts *opts, int port_offset)
|
|
{
|
|
struct addrinfo ai,*res,*e;
|
|
const char *addr;
|
|
char port[33];
|
|
char uaddr[INET6_ADDRSTRLEN+1];
|
|
char uport[33];
|
|
int slisten,rc,to,try_next;
|
|
|
|
memset(&ai,0, sizeof(ai));
|
|
ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
|
|
ai.ai_family = PF_UNSPEC;
|
|
ai.ai_socktype = SOCK_STREAM;
|
|
|
|
if ((qemu_opt_get(opts, "host") == NULL) ||
|
|
(qemu_opt_get(opts, "port") == NULL)) {
|
|
fprintf(stderr, "%s: host and/or port not specified\n", __FUNCTION__);
|
|
return -1;
|
|
}
|
|
pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port"));
|
|
addr = qemu_opt_get(opts, "host");
|
|
|
|
to = qemu_opt_get_number(opts, "to", 0);
|
|
if (qemu_opt_get_bool(opts, "ipv4", 0))
|
|
ai.ai_family = PF_INET;
|
|
if (qemu_opt_get_bool(opts, "ipv6", 0))
|
|
ai.ai_family = PF_INET6;
|
|
|
|
/* lookup */
|
|
if (port_offset)
|
|
snprintf(port, sizeof(port), "%d", atoi(port) + port_offset);
|
|
rc = getaddrinfo(strlen(addr) ? addr : NULL, port, &ai, &res);
|
|
if (rc != 0) {
|
|
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
|
gai_strerror(rc));
|
|
return -1;
|
|
}
|
|
if (sockets_debug)
|
|
inet_print_addrinfo(__FUNCTION__, res);
|
|
|
|
/* create socket + bind */
|
|
for (e = res; e != NULL; e = e->ai_next) {
|
|
getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
|
|
uaddr,INET6_ADDRSTRLEN,uport,32,
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol);
|
|
if (slisten < 0) {
|
|
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family), strerror(errno));
|
|
continue;
|
|
}
|
|
|
|
setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
|
|
#ifdef IPV6_V6ONLY
|
|
if (e->ai_family == PF_INET6) {
|
|
/* listen on both ipv4 and ipv6 */
|
|
setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
|
|
sizeof(off));
|
|
}
|
|
#endif
|
|
|
|
for (;;) {
|
|
if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) {
|
|
if (sockets_debug)
|
|
fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family), uaddr, inet_getport(e));
|
|
goto listen;
|
|
}
|
|
try_next = to && (inet_getport(e) <= to + port_offset);
|
|
if (!try_next || sockets_debug)
|
|
fprintf(stderr,"%s: bind(%s,%s,%d): %s\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family), uaddr, inet_getport(e),
|
|
strerror(errno));
|
|
if (try_next) {
|
|
inet_setport(e, inet_getport(e) + 1);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
closesocket(slisten);
|
|
}
|
|
fprintf(stderr, "%s: FAILED\n", __FUNCTION__);
|
|
freeaddrinfo(res);
|
|
return -1;
|
|
|
|
listen:
|
|
if (listen(slisten,1) != 0) {
|
|
perror("listen");
|
|
closesocket(slisten);
|
|
freeaddrinfo(res);
|
|
return -1;
|
|
}
|
|
snprintf(uport, sizeof(uport), "%d", inet_getport(e) - port_offset);
|
|
qemu_opt_set(opts, "host", uaddr);
|
|
qemu_opt_set(opts, "port", uport);
|
|
qemu_opt_set(opts, "ipv6", (e->ai_family == PF_INET6) ? "on" : "off");
|
|
qemu_opt_set(opts, "ipv4", (e->ai_family != PF_INET6) ? "on" : "off");
|
|
freeaddrinfo(res);
|
|
return slisten;
|
|
}
|
|
|
|
int inet_connect_opts(QemuOpts *opts)
|
|
{
|
|
struct addrinfo ai,*res,*e;
|
|
const char *addr;
|
|
const char *port;
|
|
char uaddr[INET6_ADDRSTRLEN+1];
|
|
char uport[33];
|
|
int sock,rc;
|
|
|
|
memset(&ai,0, sizeof(ai));
|
|
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
|
|
ai.ai_family = PF_UNSPEC;
|
|
ai.ai_socktype = SOCK_STREAM;
|
|
|
|
addr = qemu_opt_get(opts, "host");
|
|
port = qemu_opt_get(opts, "port");
|
|
if (addr == NULL || port == NULL) {
|
|
fprintf(stderr, "inet_connect: host and/or port not specified\n");
|
|
return -1;
|
|
}
|
|
|
|
if (qemu_opt_get_bool(opts, "ipv4", 0))
|
|
ai.ai_family = PF_INET;
|
|
if (qemu_opt_get_bool(opts, "ipv6", 0))
|
|
ai.ai_family = PF_INET6;
|
|
|
|
/* lookup */
|
|
if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) {
|
|
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
|
gai_strerror(rc));
|
|
return -1;
|
|
}
|
|
if (sockets_debug)
|
|
inet_print_addrinfo(__FUNCTION__, res);
|
|
|
|
for (e = res; e != NULL; e = e->ai_next) {
|
|
if (getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
|
|
uaddr,INET6_ADDRSTRLEN,uport,32,
|
|
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
|
fprintf(stderr,"%s: getnameinfo: oops\n", __FUNCTION__);
|
|
continue;
|
|
}
|
|
sock = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol);
|
|
if (sock < 0) {
|
|
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family), strerror(errno));
|
|
continue;
|
|
}
|
|
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
|
|
|
|
/* connect to peer */
|
|
if (connect(sock,e->ai_addr,e->ai_addrlen) < 0) {
|
|
if (sockets_debug || NULL == e->ai_next)
|
|
fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family),
|
|
e->ai_canonname, uaddr, uport, strerror(errno));
|
|
closesocket(sock);
|
|
continue;
|
|
}
|
|
if (sockets_debug)
|
|
fprintf(stderr, "%s: connect(%s,%s,%s,%s): OK\n", __FUNCTION__,
|
|
inet_strfamily(e->ai_family),
|
|
e->ai_canonname, uaddr, uport);
|
|
freeaddrinfo(res);
|
|
return sock;
|
|
}
|
|
freeaddrinfo(res);
|
|
return -1;
|
|
}
|
|
|
|
int inet_dgram_opts(QemuOpts *opts)
|
|
{
|
|
struct addrinfo ai, *peer = NULL, *local = NULL;
|
|
const char *addr;
|
|
const char *port;
|
|
char uaddr[INET6_ADDRSTRLEN+1];
|
|
char uport[33];
|
|
int sock = -1, rc;
|
|
|
|
/* lookup peer addr */
|
|
memset(&ai,0, sizeof(ai));
|
|
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
|
|
ai.ai_family = PF_UNSPEC;
|
|
ai.ai_socktype = SOCK_DGRAM;
|
|
|
|
addr = qemu_opt_get(opts, "host");
|
|
port = qemu_opt_get(opts, "port");
|
|
if (addr == NULL || strlen(addr) == 0) {
|
|
addr = "localhost";
|
|
}
|
|
if (port == NULL || strlen(port) == 0) {
|
|
fprintf(stderr, "inet_dgram: port not specified\n");
|
|
return -1;
|
|
}
|
|
|
|
if (qemu_opt_get_bool(opts, "ipv4", 0))
|
|
ai.ai_family = PF_INET;
|
|
if (qemu_opt_get_bool(opts, "ipv6", 0))
|
|
ai.ai_family = PF_INET6;
|
|
|
|
if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) {
|
|
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
|
gai_strerror(rc));
|
|
return -1;
|
|
}
|
|
if (sockets_debug) {
|
|
fprintf(stderr, "%s: peer (%s:%s)\n", __FUNCTION__, addr, port);
|
|
inet_print_addrinfo(__FUNCTION__, peer);
|
|
}
|
|
|
|
/* lookup local addr */
|
|
memset(&ai,0, sizeof(ai));
|
|
ai.ai_flags = AI_PASSIVE;
|
|
ai.ai_family = peer->ai_family;
|
|
ai.ai_socktype = SOCK_DGRAM;
|
|
|
|
addr = qemu_opt_get(opts, "localaddr");
|
|
port = qemu_opt_get(opts, "localport");
|
|
if (addr == NULL || strlen(addr) == 0) {
|
|
addr = NULL;
|
|
}
|
|
if (!port || strlen(port) == 0)
|
|
port = "0";
|
|
|
|
if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) {
|
|
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
|
gai_strerror(rc));
|
|
return -1;
|
|
}
|
|
if (sockets_debug) {
|
|
fprintf(stderr, "%s: local (%s:%s)\n", __FUNCTION__, addr, port);
|
|
inet_print_addrinfo(__FUNCTION__, local);
|
|
}
|
|
|
|
/* create socket */
|
|
sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol);
|
|
if (sock < 0) {
|
|
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
|
|
inet_strfamily(peer->ai_family), strerror(errno));
|
|
goto err;
|
|
}
|
|
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on));
|
|
|
|
/* bind socket */
|
|
if (getnameinfo((struct sockaddr*)local->ai_addr,local->ai_addrlen,
|
|
uaddr,INET6_ADDRSTRLEN,uport,32,
|
|
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
|
fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__);
|
|
goto err;
|
|
}
|
|
if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) {
|
|
fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__,
|
|
inet_strfamily(local->ai_family), uaddr, inet_getport(local));
|
|
goto err;
|
|
}
|
|
|
|
/* connect to peer */
|
|
if (getnameinfo((struct sockaddr*)peer->ai_addr, peer->ai_addrlen,
|
|
uaddr, INET6_ADDRSTRLEN, uport, 32,
|
|
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
|
fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__);
|
|
goto err;
|
|
}
|
|
if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) {
|
|
fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__,
|
|
inet_strfamily(peer->ai_family),
|
|
peer->ai_canonname, uaddr, uport, strerror(errno));
|
|
goto err;
|
|
}
|
|
|
|
freeaddrinfo(local);
|
|
freeaddrinfo(peer);
|
|
return sock;
|
|
|
|
err:
|
|
if (-1 != sock)
|
|
closesocket(sock);
|
|
if (local)
|
|
freeaddrinfo(local);
|
|
if (peer)
|
|
freeaddrinfo(peer);
|
|
return -1;
|
|
}
|
|
|
|
/* compatibility wrapper */
|
|
static int inet_parse(QemuOpts *opts, const char *str)
|
|
{
|
|
const char *optstr, *h;
|
|
char addr[64];
|
|
char port[33];
|
|
int pos;
|
|
|
|
/* parse address */
|
|
if (str[0] == ':') {
|
|
/* no host given */
|
|
addr[0] = '\0';
|
|
if (1 != sscanf(str,":%32[^,]%n",port,&pos)) {
|
|
fprintf(stderr, "%s: portonly parse error (%s)\n",
|
|
__FUNCTION__, str);
|
|
return -1;
|
|
}
|
|
} else if (str[0] == '[') {
|
|
/* IPv6 addr */
|
|
if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) {
|
|
fprintf(stderr, "%s: ipv6 parse error (%s)\n",
|
|
__FUNCTION__, str);
|
|
return -1;
|
|
}
|
|
qemu_opt_set(opts, "ipv6", "on");
|
|
} else if (qemu_isdigit(str[0])) {
|
|
/* IPv4 addr */
|
|
if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) {
|
|
fprintf(stderr, "%s: ipv4 parse error (%s)\n",
|
|
__FUNCTION__, str);
|
|
return -1;
|
|
}
|
|
qemu_opt_set(opts, "ipv4", "on");
|
|
} else {
|
|
/* hostname */
|
|
if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) {
|
|
fprintf(stderr, "%s: hostname parse error (%s)\n",
|
|
__FUNCTION__, str);
|
|
return -1;
|
|
}
|
|
}
|
|
qemu_opt_set(opts, "host", addr);
|
|
qemu_opt_set(opts, "port", port);
|
|
|
|
/* parse options */
|
|
optstr = str + pos;
|
|
h = strstr(optstr, ",to=");
|
|
if (h)
|
|
qemu_opt_set(opts, "to", h+4);
|
|
if (strstr(optstr, ",ipv4"))
|
|
qemu_opt_set(opts, "ipv4", "on");
|
|
if (strstr(optstr, ",ipv6"))
|
|
qemu_opt_set(opts, "ipv6", "on");
|
|
return 0;
|
|
}
|
|
|
|
int inet_listen(const char *str, char *ostr, int olen,
|
|
int socktype, int port_offset)
|
|
{
|
|
QemuOpts *opts;
|
|
char *optstr;
|
|
int sock = -1;
|
|
|
|
opts = qemu_opts_create(&dummy_opts, NULL, 0);
|
|
if (inet_parse(opts, str) == 0) {
|
|
sock = inet_listen_opts(opts, port_offset);
|
|
if (sock != -1 && ostr) {
|
|
optstr = strchr(str, ',');
|
|
if (qemu_opt_get_bool(opts, "ipv6", 0)) {
|
|
snprintf(ostr, olen, "[%s]:%s%s",
|
|
qemu_opt_get(opts, "host"),
|
|
qemu_opt_get(opts, "port"),
|
|
optstr ? optstr : "");
|
|
} else {
|
|
snprintf(ostr, olen, "%s:%s%s",
|
|
qemu_opt_get(opts, "host"),
|
|
qemu_opt_get(opts, "port"),
|
|
optstr ? optstr : "");
|
|
}
|
|
}
|
|
}
|
|
qemu_opts_del(opts);
|
|
return sock;
|
|
}
|
|
|
|
int inet_connect(const char *str, int socktype)
|
|
{
|
|
QemuOpts *opts;
|
|
int sock = -1;
|
|
|
|
opts = qemu_opts_create(&dummy_opts, NULL, 0);
|
|
if (inet_parse(opts, str) == 0)
|
|
sock = inet_connect_opts(opts);
|
|
qemu_opts_del(opts);
|
|
return sock;
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
|
|
int unix_listen_opts(QemuOpts *opts)
|
|
{
|
|
struct sockaddr_un un;
|
|
const char *path = qemu_opt_get(opts, "path");
|
|
int sock, fd;
|
|
|
|
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
|
if (sock < 0) {
|
|
perror("socket(unix)");
|
|
return -1;
|
|
}
|
|
|
|
memset(&un, 0, sizeof(un));
|
|
un.sun_family = AF_UNIX;
|
|
if (path && strlen(path)) {
|
|
snprintf(un.sun_path, sizeof(un.sun_path), "%s", path);
|
|
} else {
|
|
char *tmpdir = getenv("TMPDIR");
|
|
snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX",
|
|
tmpdir ? tmpdir : "/tmp");
|
|
/*
|
|
* This dummy fd usage silences the mktemp() unsecure warning.
|
|
* Using mkstemp() doesn't make things more secure here
|
|
* though. bind() complains about existing files, so we have
|
|
* to unlink first and thus re-open the race window. The
|
|
* worst case possible is bind() failing, i.e. a DoS attack.
|
|
*/
|
|
fd = mkstemp(un.sun_path); close(fd);
|
|
qemu_opt_set(opts, "path", un.sun_path);
|
|
}
|
|
|
|
unlink(un.sun_path);
|
|
if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
|
|
fprintf(stderr, "bind(unix:%s): %s\n", un.sun_path, strerror(errno));
|
|
goto err;
|
|
}
|
|
if (listen(sock, 1) < 0) {
|
|
fprintf(stderr, "listen(unix:%s): %s\n", un.sun_path, strerror(errno));
|
|
goto err;
|
|
}
|
|
|
|
if (sockets_debug)
|
|
fprintf(stderr, "bind(unix:%s): OK\n", un.sun_path);
|
|
return sock;
|
|
|
|
err:
|
|
closesocket(sock);
|
|
return -1;
|
|
}
|
|
|
|
int unix_connect_opts(QemuOpts *opts)
|
|
{
|
|
struct sockaddr_un un;
|
|
const char *path = qemu_opt_get(opts, "path");
|
|
int sock;
|
|
|
|
if (NULL == path) {
|
|
fprintf(stderr, "unix connect: no path specified\n");
|
|
return -1;
|
|
}
|
|
|
|
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
|
if (sock < 0) {
|
|
perror("socket(unix)");
|
|
return -1;
|
|
}
|
|
|
|
memset(&un, 0, sizeof(un));
|
|
un.sun_family = AF_UNIX;
|
|
snprintf(un.sun_path, sizeof(un.sun_path), "%s", path);
|
|
if (connect(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
|
|
fprintf(stderr, "connect(unix:%s): %s\n", path, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
if (sockets_debug)
|
|
fprintf(stderr, "connect(unix:%s): OK\n", path);
|
|
return sock;
|
|
}
|
|
|
|
/* compatibility wrapper */
|
|
int unix_listen(const char *str, char *ostr, int olen)
|
|
{
|
|
QemuOpts *opts;
|
|
char *path, *optstr;
|
|
int sock, len;
|
|
|
|
opts = qemu_opts_create(&dummy_opts, NULL, 0);
|
|
|
|
optstr = strchr(str, ',');
|
|
if (optstr) {
|
|
len = optstr - str;
|
|
if (len) {
|
|
path = qemu_malloc(len+1);
|
|
snprintf(path, len+1, "%.*s", len, str);
|
|
qemu_opt_set(opts, "path", path);
|
|
qemu_free(path);
|
|
}
|
|
} else {
|
|
qemu_opt_set(opts, "path", str);
|
|
}
|
|
|
|
sock = unix_listen_opts(opts);
|
|
|
|
if (sock != -1 && ostr)
|
|
snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : "");
|
|
qemu_opts_del(opts);
|
|
return sock;
|
|
}
|
|
|
|
int unix_connect(const char *path)
|
|
{
|
|
QemuOpts *opts;
|
|
int sock;
|
|
|
|
opts = qemu_opts_create(&dummy_opts, NULL, 0);
|
|
qemu_opt_set(opts, "path", path);
|
|
sock = unix_connect_opts(opts);
|
|
qemu_opts_del(opts);
|
|
return sock;
|
|
}
|
|
|
|
#else
|
|
|
|
int unix_listen_opts(QemuOpts *opts)
|
|
{
|
|
fprintf(stderr, "unix sockets are not available on windows\n");
|
|
return -1;
|
|
}
|
|
|
|
int unix_connect_opts(QemuOpts *opts)
|
|
{
|
|
fprintf(stderr, "unix sockets are not available on windows\n");
|
|
return -1;
|
|
}
|
|
|
|
int unix_listen(const char *path, char *ostr, int olen)
|
|
{
|
|
fprintf(stderr, "unix sockets are not available on windows\n");
|
|
return -1;
|
|
}
|
|
|
|
int unix_connect(const char *path)
|
|
{
|
|
fprintf(stderr, "unix sockets are not available on windows\n");
|
|
return -1;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
static void socket_cleanup(void)
|
|
{
|
|
WSACleanup();
|
|
}
|
|
#endif
|
|
|
|
int socket_init(void)
|
|
{
|
|
#ifdef _WIN32
|
|
WSADATA Data;
|
|
int ret, err;
|
|
|
|
ret = WSAStartup(MAKEWORD(2,2), &Data);
|
|
if (ret != 0) {
|
|
err = WSAGetLastError();
|
|
fprintf(stderr, "WSAStartup: %d\n", err);
|
|
return -1;
|
|
}
|
|
atexit(socket_cleanup);
|
|
#endif
|
|
return 0;
|
|
}
|