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Commit | Line | Data |
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1 | /* | |
2 | * inet and unix socket functions for qemu | |
3 | * | |
4 | * (c) 2008 Gerd Hoffmann <kraxel@redhat.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; under version 2 of the License. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | #include <stdio.h> | |
16 | #include <stdlib.h> | |
17 | #include <string.h> | |
18 | #include <ctype.h> | |
19 | #include <errno.h> | |
20 | #include <unistd.h> | |
21 | ||
22 | #include "qemu_socket.h" | |
23 | #include "qemu-common.h" /* for qemu_isdigit */ | |
24 | ||
25 | #ifndef AI_ADDRCONFIG | |
26 | # define AI_ADDRCONFIG 0 | |
27 | #endif | |
28 | ||
29 | static const int on=1, off=0; | |
30 | ||
31 | /* used temporarely until all users are converted to QemuOpts */ | |
32 | static QemuOptsList dummy_opts = { | |
33 | .name = "dummy", | |
34 | .head = QTAILQ_HEAD_INITIALIZER(dummy_opts.head), | |
35 | .desc = { | |
36 | { | |
37 | .name = "path", | |
38 | .type = QEMU_OPT_STRING, | |
39 | },{ | |
40 | .name = "host", | |
41 | .type = QEMU_OPT_STRING, | |
42 | },{ | |
43 | .name = "port", | |
44 | .type = QEMU_OPT_STRING, | |
45 | },{ | |
46 | .name = "to", | |
47 | .type = QEMU_OPT_NUMBER, | |
48 | },{ | |
49 | .name = "ipv4", | |
50 | .type = QEMU_OPT_BOOL, | |
51 | },{ | |
52 | .name = "ipv6", | |
53 | .type = QEMU_OPT_BOOL, | |
54 | }, | |
55 | { /* end if list */ } | |
56 | }, | |
57 | }; | |
58 | ||
59 | static int inet_getport(struct addrinfo *e) | |
60 | { | |
61 | struct sockaddr_in *i4; | |
62 | struct sockaddr_in6 *i6; | |
63 | ||
64 | switch (e->ai_family) { | |
65 | case PF_INET6: | |
66 | i6 = (void*)e->ai_addr; | |
67 | return ntohs(i6->sin6_port); | |
68 | case PF_INET: | |
69 | i4 = (void*)e->ai_addr; | |
70 | return ntohs(i4->sin_port); | |
71 | default: | |
72 | return 0; | |
73 | } | |
74 | } | |
75 | ||
76 | static void inet_setport(struct addrinfo *e, int port) | |
77 | { | |
78 | struct sockaddr_in *i4; | |
79 | struct sockaddr_in6 *i6; | |
80 | ||
81 | switch (e->ai_family) { | |
82 | case PF_INET6: | |
83 | i6 = (void*)e->ai_addr; | |
84 | i6->sin6_port = htons(port); | |
85 | break; | |
86 | case PF_INET: | |
87 | i4 = (void*)e->ai_addr; | |
88 | i4->sin_port = htons(port); | |
89 | break; | |
90 | } | |
91 | } | |
92 | ||
93 | const char *inet_strfamily(int family) | |
94 | { | |
95 | switch (family) { | |
96 | case PF_INET6: return "ipv6"; | |
97 | case PF_INET: return "ipv4"; | |
98 | case PF_UNIX: return "unix"; | |
99 | } | |
100 | return "unknown"; | |
101 | } | |
102 | ||
103 | int inet_listen_opts(QemuOpts *opts, int port_offset) | |
104 | { | |
105 | struct addrinfo ai,*res,*e; | |
106 | const char *addr; | |
107 | char port[33]; | |
108 | char uaddr[INET6_ADDRSTRLEN+1]; | |
109 | char uport[33]; | |
110 | int slisten, rc, to, port_min, port_max, p; | |
111 | ||
112 | memset(&ai,0, sizeof(ai)); | |
113 | ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; | |
114 | ai.ai_family = PF_UNSPEC; | |
115 | ai.ai_socktype = SOCK_STREAM; | |
116 | ||
117 | if ((qemu_opt_get(opts, "host") == NULL) || | |
118 | (qemu_opt_get(opts, "port") == NULL)) { | |
119 | fprintf(stderr, "%s: host and/or port not specified\n", __FUNCTION__); | |
120 | return -1; | |
121 | } | |
122 | pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); | |
123 | addr = qemu_opt_get(opts, "host"); | |
124 | ||
125 | to = qemu_opt_get_number(opts, "to", 0); | |
126 | if (qemu_opt_get_bool(opts, "ipv4", 0)) | |
127 | ai.ai_family = PF_INET; | |
128 | if (qemu_opt_get_bool(opts, "ipv6", 0)) | |
129 | ai.ai_family = PF_INET6; | |
130 | ||
131 | /* lookup */ | |
132 | if (port_offset) | |
133 | snprintf(port, sizeof(port), "%d", atoi(port) + port_offset); | |
134 | rc = getaddrinfo(strlen(addr) ? addr : NULL, port, &ai, &res); | |
135 | if (rc != 0) { | |
136 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
137 | gai_strerror(rc)); | |
138 | return -1; | |
139 | } | |
140 | ||
141 | /* create socket + bind */ | |
142 | for (e = res; e != NULL; e = e->ai_next) { | |
143 | getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, | |
144 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
145 | NI_NUMERICHOST | NI_NUMERICSERV); | |
146 | slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); | |
147 | if (slisten < 0) { | |
148 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, | |
149 | inet_strfamily(e->ai_family), strerror(errno)); | |
150 | continue; | |
151 | } | |
152 | ||
153 | setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); | |
154 | #ifdef IPV6_V6ONLY | |
155 | if (e->ai_family == PF_INET6) { | |
156 | /* listen on both ipv4 and ipv6 */ | |
157 | setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off, | |
158 | sizeof(off)); | |
159 | } | |
160 | #endif | |
161 | ||
162 | port_min = inet_getport(e); | |
163 | port_max = to ? to + port_offset : port_min; | |
164 | for (p = port_min; p <= port_max; p++) { | |
165 | inet_setport(e, p); | |
166 | if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { | |
167 | goto listen; | |
168 | } | |
169 | if (p == port_max) { | |
170 | fprintf(stderr,"%s: bind(%s,%s,%d): %s\n", __FUNCTION__, | |
171 | inet_strfamily(e->ai_family), uaddr, inet_getport(e), | |
172 | strerror(errno)); | |
173 | } | |
174 | } | |
175 | closesocket(slisten); | |
176 | } | |
177 | fprintf(stderr, "%s: FAILED\n", __FUNCTION__); | |
178 | freeaddrinfo(res); | |
179 | return -1; | |
180 | ||
181 | listen: | |
182 | if (listen(slisten,1) != 0) { | |
183 | perror("listen"); | |
184 | closesocket(slisten); | |
185 | freeaddrinfo(res); | |
186 | return -1; | |
187 | } | |
188 | snprintf(uport, sizeof(uport), "%d", inet_getport(e) - port_offset); | |
189 | qemu_opt_set(opts, "host", uaddr); | |
190 | qemu_opt_set(opts, "port", uport); | |
191 | qemu_opt_set(opts, "ipv6", (e->ai_family == PF_INET6) ? "on" : "off"); | |
192 | qemu_opt_set(opts, "ipv4", (e->ai_family != PF_INET6) ? "on" : "off"); | |
193 | freeaddrinfo(res); | |
194 | return slisten; | |
195 | } | |
196 | ||
197 | int inet_connect_opts(QemuOpts *opts) | |
198 | { | |
199 | struct addrinfo ai,*res,*e; | |
200 | const char *addr; | |
201 | const char *port; | |
202 | char uaddr[INET6_ADDRSTRLEN+1]; | |
203 | char uport[33]; | |
204 | int sock,rc; | |
205 | ||
206 | memset(&ai,0, sizeof(ai)); | |
207 | ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; | |
208 | ai.ai_family = PF_UNSPEC; | |
209 | ai.ai_socktype = SOCK_STREAM; | |
210 | ||
211 | addr = qemu_opt_get(opts, "host"); | |
212 | port = qemu_opt_get(opts, "port"); | |
213 | if (addr == NULL || port == NULL) { | |
214 | fprintf(stderr, "inet_connect: host and/or port not specified\n"); | |
215 | return -1; | |
216 | } | |
217 | ||
218 | if (qemu_opt_get_bool(opts, "ipv4", 0)) | |
219 | ai.ai_family = PF_INET; | |
220 | if (qemu_opt_get_bool(opts, "ipv6", 0)) | |
221 | ai.ai_family = PF_INET6; | |
222 | ||
223 | /* lookup */ | |
224 | if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) { | |
225 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
226 | gai_strerror(rc)); | |
227 | return -1; | |
228 | } | |
229 | ||
230 | for (e = res; e != NULL; e = e->ai_next) { | |
231 | if (getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, | |
232 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
233 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
234 | fprintf(stderr,"%s: getnameinfo: oops\n", __FUNCTION__); | |
235 | continue; | |
236 | } | |
237 | sock = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); | |
238 | if (sock < 0) { | |
239 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, | |
240 | inet_strfamily(e->ai_family), strerror(errno)); | |
241 | continue; | |
242 | } | |
243 | setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); | |
244 | ||
245 | /* connect to peer */ | |
246 | if (connect(sock,e->ai_addr,e->ai_addrlen) < 0) { | |
247 | if (NULL == e->ai_next) | |
248 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, | |
249 | inet_strfamily(e->ai_family), | |
250 | e->ai_canonname, uaddr, uport, strerror(errno)); | |
251 | closesocket(sock); | |
252 | continue; | |
253 | } | |
254 | freeaddrinfo(res); | |
255 | return sock; | |
256 | } | |
257 | freeaddrinfo(res); | |
258 | return -1; | |
259 | } | |
260 | ||
261 | int inet_dgram_opts(QemuOpts *opts) | |
262 | { | |
263 | struct addrinfo ai, *peer = NULL, *local = NULL; | |
264 | const char *addr; | |
265 | const char *port; | |
266 | char uaddr[INET6_ADDRSTRLEN+1]; | |
267 | char uport[33]; | |
268 | int sock = -1, rc; | |
269 | ||
270 | /* lookup peer addr */ | |
271 | memset(&ai,0, sizeof(ai)); | |
272 | ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; | |
273 | ai.ai_family = PF_UNSPEC; | |
274 | ai.ai_socktype = SOCK_DGRAM; | |
275 | ||
276 | addr = qemu_opt_get(opts, "host"); | |
277 | port = qemu_opt_get(opts, "port"); | |
278 | if (addr == NULL || strlen(addr) == 0) { | |
279 | addr = "localhost"; | |
280 | } | |
281 | if (port == NULL || strlen(port) == 0) { | |
282 | fprintf(stderr, "inet_dgram: port not specified\n"); | |
283 | return -1; | |
284 | } | |
285 | ||
286 | if (qemu_opt_get_bool(opts, "ipv4", 0)) | |
287 | ai.ai_family = PF_INET; | |
288 | if (qemu_opt_get_bool(opts, "ipv6", 0)) | |
289 | ai.ai_family = PF_INET6; | |
290 | ||
291 | if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) { | |
292 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
293 | gai_strerror(rc)); | |
294 | return -1; | |
295 | } | |
296 | ||
297 | /* lookup local addr */ | |
298 | memset(&ai,0, sizeof(ai)); | |
299 | ai.ai_flags = AI_PASSIVE; | |
300 | ai.ai_family = peer->ai_family; | |
301 | ai.ai_socktype = SOCK_DGRAM; | |
302 | ||
303 | addr = qemu_opt_get(opts, "localaddr"); | |
304 | port = qemu_opt_get(opts, "localport"); | |
305 | if (addr == NULL || strlen(addr) == 0) { | |
306 | addr = NULL; | |
307 | } | |
308 | if (!port || strlen(port) == 0) | |
309 | port = "0"; | |
310 | ||
311 | if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) { | |
312 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port, | |
313 | gai_strerror(rc)); | |
314 | return -1; | |
315 | } | |
316 | ||
317 | /* create socket */ | |
318 | sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); | |
319 | if (sock < 0) { | |
320 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, | |
321 | inet_strfamily(peer->ai_family), strerror(errno)); | |
322 | goto err; | |
323 | } | |
324 | setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); | |
325 | ||
326 | /* bind socket */ | |
327 | if (getnameinfo((struct sockaddr*)local->ai_addr,local->ai_addrlen, | |
328 | uaddr,INET6_ADDRSTRLEN,uport,32, | |
329 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
330 | fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__); | |
331 | goto err; | |
332 | } | |
333 | if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { | |
334 | fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__, | |
335 | inet_strfamily(local->ai_family), uaddr, inet_getport(local)); | |
336 | goto err; | |
337 | } | |
338 | ||
339 | /* connect to peer */ | |
340 | if (getnameinfo((struct sockaddr*)peer->ai_addr, peer->ai_addrlen, | |
341 | uaddr, INET6_ADDRSTRLEN, uport, 32, | |
342 | NI_NUMERICHOST | NI_NUMERICSERV) != 0) { | |
343 | fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__); | |
344 | goto err; | |
345 | } | |
346 | if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { | |
347 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, | |
348 | inet_strfamily(peer->ai_family), | |
349 | peer->ai_canonname, uaddr, uport, strerror(errno)); | |
350 | goto err; | |
351 | } | |
352 | ||
353 | freeaddrinfo(local); | |
354 | freeaddrinfo(peer); | |
355 | return sock; | |
356 | ||
357 | err: | |
358 | if (-1 != sock) | |
359 | closesocket(sock); | |
360 | if (local) | |
361 | freeaddrinfo(local); | |
362 | if (peer) | |
363 | freeaddrinfo(peer); | |
364 | return -1; | |
365 | } | |
366 | ||
367 | /* compatibility wrapper */ | |
368 | static int inet_parse(QemuOpts *opts, const char *str) | |
369 | { | |
370 | const char *optstr, *h; | |
371 | char addr[64]; | |
372 | char port[33]; | |
373 | int pos; | |
374 | ||
375 | /* parse address */ | |
376 | if (str[0] == ':') { | |
377 | /* no host given */ | |
378 | addr[0] = '\0'; | |
379 | if (1 != sscanf(str,":%32[^,]%n",port,&pos)) { | |
380 | fprintf(stderr, "%s: portonly parse error (%s)\n", | |
381 | __FUNCTION__, str); | |
382 | return -1; | |
383 | } | |
384 | } else if (str[0] == '[') { | |
385 | /* IPv6 addr */ | |
386 | if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) { | |
387 | fprintf(stderr, "%s: ipv6 parse error (%s)\n", | |
388 | __FUNCTION__, str); | |
389 | return -1; | |
390 | } | |
391 | qemu_opt_set(opts, "ipv6", "on"); | |
392 | } else if (qemu_isdigit(str[0])) { | |
393 | /* IPv4 addr */ | |
394 | if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) { | |
395 | fprintf(stderr, "%s: ipv4 parse error (%s)\n", | |
396 | __FUNCTION__, str); | |
397 | return -1; | |
398 | } | |
399 | qemu_opt_set(opts, "ipv4", "on"); | |
400 | } else { | |
401 | /* hostname */ | |
402 | if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) { | |
403 | fprintf(stderr, "%s: hostname parse error (%s)\n", | |
404 | __FUNCTION__, str); | |
405 | return -1; | |
406 | } | |
407 | } | |
408 | qemu_opt_set(opts, "host", addr); | |
409 | qemu_opt_set(opts, "port", port); | |
410 | ||
411 | /* parse options */ | |
412 | optstr = str + pos; | |
413 | h = strstr(optstr, ",to="); | |
414 | if (h) | |
415 | qemu_opt_set(opts, "to", h+4); | |
416 | if (strstr(optstr, ",ipv4")) | |
417 | qemu_opt_set(opts, "ipv4", "on"); | |
418 | if (strstr(optstr, ",ipv6")) | |
419 | qemu_opt_set(opts, "ipv6", "on"); | |
420 | return 0; | |
421 | } | |
422 | ||
423 | int inet_listen(const char *str, char *ostr, int olen, | |
424 | int socktype, int port_offset) | |
425 | { | |
426 | QemuOpts *opts; | |
427 | char *optstr; | |
428 | int sock = -1; | |
429 | ||
430 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
431 | if (inet_parse(opts, str) == 0) { | |
432 | sock = inet_listen_opts(opts, port_offset); | |
433 | if (sock != -1 && ostr) { | |
434 | optstr = strchr(str, ','); | |
435 | if (qemu_opt_get_bool(opts, "ipv6", 0)) { | |
436 | snprintf(ostr, olen, "[%s]:%s%s", | |
437 | qemu_opt_get(opts, "host"), | |
438 | qemu_opt_get(opts, "port"), | |
439 | optstr ? optstr : ""); | |
440 | } else { | |
441 | snprintf(ostr, olen, "%s:%s%s", | |
442 | qemu_opt_get(opts, "host"), | |
443 | qemu_opt_get(opts, "port"), | |
444 | optstr ? optstr : ""); | |
445 | } | |
446 | } | |
447 | } | |
448 | qemu_opts_del(opts); | |
449 | return sock; | |
450 | } | |
451 | ||
452 | int inet_connect(const char *str, int socktype) | |
453 | { | |
454 | QemuOpts *opts; | |
455 | int sock = -1; | |
456 | ||
457 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
458 | if (inet_parse(opts, str) == 0) | |
459 | sock = inet_connect_opts(opts); | |
460 | qemu_opts_del(opts); | |
461 | return sock; | |
462 | } | |
463 | ||
464 | #ifndef _WIN32 | |
465 | ||
466 | int unix_listen_opts(QemuOpts *opts) | |
467 | { | |
468 | struct sockaddr_un un; | |
469 | const char *path = qemu_opt_get(opts, "path"); | |
470 | int sock, fd; | |
471 | ||
472 | sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); | |
473 | if (sock < 0) { | |
474 | perror("socket(unix)"); | |
475 | return -1; | |
476 | } | |
477 | ||
478 | memset(&un, 0, sizeof(un)); | |
479 | un.sun_family = AF_UNIX; | |
480 | if (path && strlen(path)) { | |
481 | snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); | |
482 | } else { | |
483 | char *tmpdir = getenv("TMPDIR"); | |
484 | snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", | |
485 | tmpdir ? tmpdir : "/tmp"); | |
486 | /* | |
487 | * This dummy fd usage silences the mktemp() unsecure warning. | |
488 | * Using mkstemp() doesn't make things more secure here | |
489 | * though. bind() complains about existing files, so we have | |
490 | * to unlink first and thus re-open the race window. The | |
491 | * worst case possible is bind() failing, i.e. a DoS attack. | |
492 | */ | |
493 | fd = mkstemp(un.sun_path); close(fd); | |
494 | qemu_opt_set(opts, "path", un.sun_path); | |
495 | } | |
496 | ||
497 | unlink(un.sun_path); | |
498 | if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { | |
499 | fprintf(stderr, "bind(unix:%s): %s\n", un.sun_path, strerror(errno)); | |
500 | goto err; | |
501 | } | |
502 | if (listen(sock, 1) < 0) { | |
503 | fprintf(stderr, "listen(unix:%s): %s\n", un.sun_path, strerror(errno)); | |
504 | goto err; | |
505 | } | |
506 | ||
507 | return sock; | |
508 | ||
509 | err: | |
510 | closesocket(sock); | |
511 | return -1; | |
512 | } | |
513 | ||
514 | int unix_connect_opts(QemuOpts *opts) | |
515 | { | |
516 | struct sockaddr_un un; | |
517 | const char *path = qemu_opt_get(opts, "path"); | |
518 | int sock; | |
519 | ||
520 | if (NULL == path) { | |
521 | fprintf(stderr, "unix connect: no path specified\n"); | |
522 | return -1; | |
523 | } | |
524 | ||
525 | sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); | |
526 | if (sock < 0) { | |
527 | perror("socket(unix)"); | |
528 | return -1; | |
529 | } | |
530 | ||
531 | memset(&un, 0, sizeof(un)); | |
532 | un.sun_family = AF_UNIX; | |
533 | snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); | |
534 | if (connect(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { | |
535 | fprintf(stderr, "connect(unix:%s): %s\n", path, strerror(errno)); | |
536 | close(sock); | |
537 | return -1; | |
538 | } | |
539 | ||
540 | return sock; | |
541 | } | |
542 | ||
543 | /* compatibility wrapper */ | |
544 | int unix_listen(const char *str, char *ostr, int olen) | |
545 | { | |
546 | QemuOpts *opts; | |
547 | char *path, *optstr; | |
548 | int sock, len; | |
549 | ||
550 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
551 | ||
552 | optstr = strchr(str, ','); | |
553 | if (optstr) { | |
554 | len = optstr - str; | |
555 | if (len) { | |
556 | path = g_malloc(len+1); | |
557 | snprintf(path, len+1, "%.*s", len, str); | |
558 | qemu_opt_set(opts, "path", path); | |
559 | g_free(path); | |
560 | } | |
561 | } else { | |
562 | qemu_opt_set(opts, "path", str); | |
563 | } | |
564 | ||
565 | sock = unix_listen_opts(opts); | |
566 | ||
567 | if (sock != -1 && ostr) | |
568 | snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); | |
569 | qemu_opts_del(opts); | |
570 | return sock; | |
571 | } | |
572 | ||
573 | int unix_connect(const char *path) | |
574 | { | |
575 | QemuOpts *opts; | |
576 | int sock; | |
577 | ||
578 | opts = qemu_opts_create(&dummy_opts, NULL, 0); | |
579 | qemu_opt_set(opts, "path", path); | |
580 | sock = unix_connect_opts(opts); | |
581 | qemu_opts_del(opts); | |
582 | return sock; | |
583 | } | |
584 | ||
585 | #else | |
586 | ||
587 | int unix_listen_opts(QemuOpts *opts) | |
588 | { | |
589 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
590 | errno = ENOTSUP; | |
591 | return -1; | |
592 | } | |
593 | ||
594 | int unix_connect_opts(QemuOpts *opts) | |
595 | { | |
596 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
597 | errno = ENOTSUP; | |
598 | return -1; | |
599 | } | |
600 | ||
601 | int unix_listen(const char *path, char *ostr, int olen) | |
602 | { | |
603 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
604 | errno = ENOTSUP; | |
605 | return -1; | |
606 | } | |
607 | ||
608 | int unix_connect(const char *path) | |
609 | { | |
610 | fprintf(stderr, "unix sockets are not available on windows\n"); | |
611 | errno = ENOTSUP; | |
612 | return -1; | |
613 | } | |
614 | ||
615 | #endif | |
616 | ||
617 | #ifdef _WIN32 | |
618 | static void socket_cleanup(void) | |
619 | { | |
620 | WSACleanup(); | |
621 | } | |
622 | #endif | |
623 | ||
624 | int socket_init(void) | |
625 | { | |
626 | #ifdef _WIN32 | |
627 | WSADATA Data; | |
628 | int ret, err; | |
629 | ||
630 | ret = WSAStartup(MAKEWORD(2,2), &Data); | |
631 | if (ret != 0) { | |
632 | err = WSAGetLastError(); | |
633 | fprintf(stderr, "WSAStartup: %d\n", err); | |
634 | return -1; | |
635 | } | |
636 | atexit(socket_cleanup); | |
637 | #endif | |
638 | return 0; | |
639 | } |