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- added missing socket_info files

Andrei Pelinescu-Onciul authored on 24/10/2003 20:29:02
Showing 2 changed files
socket_info.c
History View file @ ab63a9a607
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new file mode 100644
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+/* $Id$
1 
+ *
2 
+ * find & manage listen addresses
3 
+ *
4 
+ * Copyright (C) 2001-2003 Fhg Fokus
5 
+ *
6 
+ * This file is part of ser, a free SIP server.
7 
+ *
8 
+ * ser is free software; you can redistribute it and/or modify
9 
+ * it under the terms of the GNU General Public License as published by
10 
+ * the Free Software Foundation; either version 2 of the License, or
11 
+ * (at your option) any later version
12 
+ *
13 
+ * For a license to use the ser software under conditions
14 
+ * other than those described here, or to purchase support for this
15 
+ * software, please contact iptel.org by e-mail at the following addresses:
16 
+ *    info@iptel.org
17 
+ *
18 
+ * ser is distributed in the hope that it will be useful,
19 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 
+ * GNU General Public License for more details.
22 
+ *
23 
+ * You should have received a copy of the GNU General Public License
24 
+ * along with this program; if not, write to the Free Software
25 
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
26 
+ */
27 
+/*
28 
+ * This file contains code that initializes and handles ser listen addresses
29 
+ * lists (struct socket_info). It is used mainly on startup.
30 
+ *
31 
+ * History:
32 
+ * --------
33 
+ *  2003-10-22  created by andrei
34 
+ */
35 
+
36 
+
37 
+#include <string.h>
38 
+#include <errno.h>
39 
+#include <unistd.h>
40 
+#include <sys/types.h>
41 
+#include <sys/socket.h>
42 
+#include <sys/utsname.h>
43 
+#include <stdio.h>
44 
+
45 
+#include <sys/ioctl.h>
46 
+#include <net/if.h>
47 
+#ifdef HAVE_SYS_SOCKIO_H
48 
+#include <sys/sockio.h>
49 
+#endif
50 
+
51 
+#include "globals.h"
52 
+#include "socket_info.h"
53 
+#include "dprint.h"
54 
+#include "mem/mem.h"
55 
+#include "ut.h"
56 
+#include "resolve.h"
57 
+#include "name_alias.h"
58 
+
59 
+
60 
+
61 
+/* list manip. functions (internal use only) */
62 
+
63 
+
64 
+/* append */
65 
+#define sock_listadd(head, el) \
66 
+	do{\
67 
+		if (*(head)==0) *(head)=(el); \
68 
+		else{ \
69 
+			for((el)->next=*(head); (el)->next->next;\
70 
+					(el)->next=(el)->next->next); \
71 
+			(el)->next->next=(el); \
72 
+			(el)->prev=(el)->next; \
73 
+			(el)->next=0; \
74 
+		}\
75 
+	}while(0)
76 
+
77 
+
78 
+/* insert after "after" */
79 
+#define sock_listins(el, after) \
80 
+	do{ \
81 
+		if ((after)){\
82 
+			(el)->next=(after)->next; \
83 
+			if ((after)->next) (after)->next->prev=(el); \
84 
+			(after)->next=(el); \
85 
+			(el)->prev=(after); \
86 
+		}else{ /* after==0 = list head */ \
87 
+			(after)=(el); \
88 
+			(el)->next=(el)->prev=0; \
89 
+		}\
90 
+	}while(0)
91 
+
92 
+
93 
+#define sock_listrm(head, el) \
94 
+	do {\
95 
+		if (*(head)==(el)) *(head)=(el)->next; \
96 
+		if ((el)->next) (el)->next->prev=(el)->prev; \
97 
+		if ((el)->prev) (el)->prev->next=(el)->next; \
98 
+	}while(0)
99 
+
100 
+
101 
+
102 
+/* another helper function, it just creates a socket_info struct */
103 
+static inline struct socket_info* new_sock_info(	char* name,
104 
+								unsigned short port, unsigned short proto,
105 
+								enum si_flags flags)
106 
+{
107 
+	struct socket_info* si;
108 
+
109 
+	si=(struct socket_info*) pkg_malloc(sizeof(struct socket_info));
110 
+	if (si==0) goto error;
111 
+	memset(si, 0, sizeof(struct socket_info));
112 
+	si->name.len=strlen(name);
113 
+	si->name.s=(char*)pkg_malloc(si->name.len+1); /* include \0 */
114 
+	if (si->name.s==0) goto error;
115 
+	memcpy(si->name.s, name, si->name.len+1);
116 
+	/* set port & proto */
117 
+	si->port_no=port;
118 
+	si->proto=proto;
119 
+	si->flags=flags;
120 
+	return si;
121 
+error:
122 
+	LOG(L_ERR, "ERROR: new_sock_info: memory allocation error\n");
123 
+	if (si) pkg_free(si);
124 
+	return 0;
125 
+}
126 
+
127 
+
128 
+
129 
+/*  delete a socket_info struct */
130 
+static void free_sock_info(struct socket_info* si)
131 
+{
132 
+	if(si){
133 
+		if(si->name.s) pkg_free(si->name.s);
134 
+		if(si->address_str.s) pkg_free(si->address_str.s);
135 
+		if(si->port_no_str.s) pkg_free(si->port_no_str.s);
136 
+	}
137 
+}
138 
+
139 
+
140 
+
141 
+static char* get_proto_name(unsigned short proto)
142 
+{
143 
+	switch(proto){
144 
+		case PROTO_NONE:
145 
+			return "*";
146 
+		case PROTO_UDP:
147 
+			return "udp";
148 
+#ifdef USE_TCP
149 
+		case PROTO_TCP:
150 
+			return "tcp";
151 
+#endif
152 
+#ifdef USE_TLS
153 
+		case PROTO_TLS:
154 
+			return "tls";
155 
+#endif
156 
+		default:
157 
+			return "unknown";
158 
+	}
159 
+}
160 
+
161 
+
162 
+static struct socket_info** get_sock_info_list(unsigned short proto)
163 
+{
164 
+
165 
+	switch(proto){
166 
+		case PROTO_UDP:
167 
+			return &udp_listen;
168 
+			break;
169 
+#ifdef USE_TCP
170 
+		case PROTO_TCP:
171 
+			return &tcp_listen;
172 
+			break;
173 
+#endif
174 
+#ifdef USE_TLS
175 
+		case PROTO_TLS:
176 
+			return &tls_listen;
177 
+			break;
178 
+#endif
179 
+		default:
180 
+			LOG(L_CRIT, "BUG: get_sock_info_list: invalid proto %d\n", proto);
181 
+	}
182 
+	return 0;
183 
+}
184 
+
185 
+
186 
+
187 
+/* adds a new sock_info structure to the corresponding list
188 
+ * return  0 on success, -1 on error */
189 
+int new_sock2list(char* name, unsigned short port, unsigned short proto,
190 
+						enum si_flags flags, struct socket_info** list)
191 
+{
192 
+	struct socket_info* si;
193 
+
194 
+	si=new_sock_info(name, port, proto, flags);
195 
+	if (si==0){
196 
+		LOG(L_ERR, "ERROR: add_listen_iface: new_sock_info failed\n");
197 
+		goto error;
198 
+	}
199 
+	sock_listadd(list, si);
200 
+	return 0;
201 
+error:
202 
+	return -1;
203 
+}
204 
+
205 
+
206 
+
207 
+/* adds a sock_info structure to the corresponding proto list
208 
+ * return  0 on success, -1 on error */
209 
+int add_listen_iface(char* name, unsigned short port, unsigned short proto,
210 
+						enum si_flags flags)
211 
+{
212 
+	struct socket_info** list;
213 
+	unsigned short c_proto;
214 
+
215 
+	c_proto=(proto)?proto:PROTO_UDP;
216 
+	do{
217 
+		list=get_sock_info_list(c_proto);
218 
+		if (list==0){
219 
+			LOG(L_ERR, "ERROR: add_listen_iface: get_sock_info_list failed\n");
220 
+			goto error;
221 
+		}
222 
+		if (new_sock2list(name, port, c_proto, flags, list)<0){
223 
+			LOG(L_ERR, "ERROR: add_listen_iface: new_sock2list failed\n");
224 
+			goto error;
225 
+		}
226 
+	}while( (proto==0) && (c_proto=next_proto(c_proto)));
227 
+	return 0;
228 
+error:
229 
+	return -1;
230 
+}
231 
+
232 
+
233 
+
234 
+/* add all family type addresses of interface if_name to the socket_info array
235 
+ * if if_name==0, adds all addresses on all interfaces
236 
+ * WARNING: it only works with ipv6 addresses on FreeBSD
237 
+ * return: -1 on error, 0 on success
238 
+ */
239 
+int add_interfaces(char* if_name, int family, unsigned short port,
240 
+					unsigned short proto,
241 
+					struct socket_info** list)
242 
+{
243 
+	struct ifconf ifc;
244 
+	struct ifreq ifr;
245 
+	struct ifreq ifrcopy;
246 
+	char*  last;
247 
+	char* p;
248 
+	int size;
249 
+	int lastlen;
250 
+	int s;
251 
+	char* tmp;
252 
+	struct ip_addr addr;
253 
+	int ret;
254 
+	enum si_flags flags;
255 
+
256 
+#ifdef HAVE_SOCKADDR_SA_LEN
257 
+	#ifndef MAX
258 
+		#define MAX(a,b) ( ((a)>(b))?(a):(b))
259 
+	#endif
260 
+#endif
261 
+	/* ipv4 or ipv6 only*/
262 
+	flags=SI_NONE;
263 
+	s=socket(family, SOCK_DGRAM, 0);
264 
+	ret=-1;
265 
+	lastlen=0;
266 
+	ifc.ifc_req=0;
267 
+	for (size=10; ; size*=2){
268 
+		ifc.ifc_len=size*sizeof(struct ifreq);
269 
+		ifc.ifc_req=(struct ifreq*) pkg_malloc(size*sizeof(struct ifreq));
270 
+		if (ifc.ifc_req==0){
271 
+			LOG(L_ERR, "ERROR: add_interfaces: memory allocation failure\n");
272 
+			goto error;
273 
+		}
274 
+		if (ioctl(s, SIOCGIFCONF, &ifc)==-1){
275 
+			if(errno==EBADF) return 0; /* invalid descriptor => no such ifs*/
276 
+			LOG(L_ERR, "ERROR: add_interfaces: ioctl failed: %s\n",
277 
+					strerror(errno));
278 
+			goto error;
279 
+		}
280 
+		if  ((lastlen) && (ifc.ifc_len==lastlen)) break; /*success,
281 
+														   len not changed*/
282 
+		lastlen=ifc.ifc_len;
283 
+		/* try a bigger array*/
284 
+		pkg_free(ifc.ifc_req);
285 
+	}
286 
+
287 
+	last=(char*)ifc.ifc_req+ifc.ifc_len;
288 
+	for(p=(char*)ifc.ifc_req; p<last;
289 
+			p+=(sizeof(ifr.ifr_name)+
290 
+			#ifdef  HAVE_SOCKADDR_SA_LEN
291 
+				MAX(ifr.ifr_addr.sa_len, sizeof(struct sockaddr))
292 
+			#else
293 
+				( (ifr.ifr_addr.sa_family==AF_INET)?
294 
+					sizeof(struct sockaddr_in):
295 
+					((ifr.ifr_addr.sa_family==AF_INET6)?
296 
+						sizeof(struct sockaddr_in6):sizeof(struct sockaddr)) )
297 
+			#endif
298 
+				)
299 
+		)
300 
+	{
301 
+		/* copy contents into ifr structure
302 
+		 * warning: it might be longer (e.g. ipv6 address) */
303 
+		memcpy(&ifr, p, sizeof(ifr));
304 
+		if (ifr.ifr_addr.sa_family!=family){
305 
+			/*printf("strange family %d skipping...\n",
306 
+					ifr->ifr_addr.sa_family);*/
307 
+			continue;
308 
+		}
309 
+
310 
+		/*get flags*/
311 
+		ifrcopy=ifr;
312 
+		if (ioctl(s, SIOCGIFFLAGS,  &ifrcopy)!=-1){ /* ignore errors */
313 
+			/* ignore down ifs only if listening on all of them*/
314 
+			if (if_name==0){
315 
+				/* if if not up, skip it*/
316 
+				if (!(ifrcopy.ifr_flags & IFF_UP)) continue;
317 
+			}
318 
+		}
319 
+
320 
+
321 
+
322 
+		if ((if_name==0)||
323 
+			(strncmp(if_name, ifr.ifr_name, sizeof(ifr.ifr_name))==0)){
324 
+
325 
+			/*add address*/
326 
+			sockaddr2ip_addr(&addr,
327 
+					(struct sockaddr*)(p+(long)&((struct ifreq*)0)->ifr_addr));
328 
+			if ((tmp=ip_addr2a(&addr))==0) goto error;
329 
+			/* check if loopback */
330 
+			if (ifrcopy.ifr_flags & IFF_LOOPBACK)
331 
+				flags|=SI_IS_LO;
332 
+			/* add it to one of the lists */
333 
+			if (new_sock2list(tmp, port, proto, flags, list)!=0){
334 
+				LOG(L_ERR, "ERROR: add_interfaces: new_sock2list failed\n");
335 
+				goto error;
336 
+			}
337 
+			ret=0;
338 
+		}
339 
+			/*
340 
+			printf("%s:\n", ifr->ifr_name);
341 
+			printf("        ");
342 
+			print_sockaddr(&(ifr->ifr_addr));
343 
+			printf("        ");
344 
+			ls_ifflags(ifr->ifr_name, family, options);
345 
+			printf("\n");*/
346 
+	}
347 
+	pkg_free(ifc.ifc_req); /*clean up*/
348 
+	close(s);
349 
+	return  ret;
350 
+error:
351 
+	if (ifc.ifc_req) pkg_free(ifc.ifc_req);
352 
+	close(s);
353 
+	return -1;
354 
+}
355 
+
356 
+
357 
+
358 
+/* fixes a socket list => resolve addresses,
359 
+ * interface names, fills missing members, remove duplicates */
360 
+static int fix_socket_list(struct socket_info **list)
361 
+{
362 
+	struct socket_info* si;
363 
+	struct socket_info* l;
364 
+	struct socket_info* next;
365 
+	char* tmp;
366 
+	int len;
367 
+	struct hostent* he;
368 
+	char** h;
369 
+
370 
+	/* try to change all the interface names into addresses
371 
+	 *  --ugly hack */
372 
+
373 
+	for (si=*list;si;){
374 
+		next=si->next;
375 
+		if (add_interfaces(si->name.s, AF_INET, si->port_no,
376 
+							si->proto, list)!=-1){
377 
+			/* success => remove current entry (shift the entire array)*/
378 
+			sock_listrm(list, si);
379 
+			free_sock_info(si);
380 
+		}
381 
+		si=next;
382 
+	}
383 
+	/* get ips & fill the port numbers*/
384 
+#ifdef EXTRA_DEBUG
385 
+	DBG("Listening on \n");
386 
+#endif
387 
+	for (si=*list;si;si=si->next){
388 
+		/* fix port number, port_no should be !=0 here */
389 
+		if (si->port_no==0){
390 
+#ifdef USE_TLS
391 
+			si->port_no= (si->proto==PROTO_TLS)?tls_port_no:port_no;
392 
+#else
393 
+			si->port_no= port_no;
394 
+#endif
395 
+		}
396 
+		tmp=int2str(si->port_no, &len);
397 
+		if (len>=MAX_PORT_LEN){
398 
+			LOG(L_ERR, "ERROR: fix_socket_list: bad port number: %d\n",
399 
+						si->port_no);
400 
+			goto error;
401 
+		}
402 
+		si->port_no_str.s=(char*)pkg_malloc(len+1);
403 
+		if (si->port_no_str.s==0){
404 
+			LOG(L_ERR, "ERROR: fix_socket_list: out of memory.\n");
405 
+			goto error;
406 
+		}
407 
+		strncpy(si->port_no_str.s, tmp, len+1);
408 
+		si->port_no_str.len=len;
409 
+
410 
+		/* get "official hostnames", all the aliases etc. */
411 
+		he=resolvehost(si->name.s);
412 
+		if (he==0){
413 
+			LOG(L_ERR, "ERROR: fix_socket_list: could not resolve %s\n",
414 
+					si->name.s);
415 
+			goto error;
416 
+		}
417 
+		/* check if we got the official name */
418 
+		if (strcasecmp(he->h_name, si->name.s)!=0){
419 
+			if (add_alias(si->name.s, si->name.len,
420 
+							si->port_no, si->proto)<0){
421 
+				LOG(L_ERR, "ERROR: fix_socket_list: add_alias failed\n");
422 
+			}
423 
+			/* change the oficial name */
424 
+			pkg_free(si->name.s);
425 
+			si->name.s=(char*)pkg_malloc(strlen(he->h_name)+1);
426 
+			if (si->name.s==0){
427 
+				LOG(L_ERR,  "ERROR: fix_socket_list: out of memory.\n");
428 
+				goto error;
429 
+			}
430 
+			si->name.len=strlen(he->h_name);
431 
+			strncpy(si->name.s, he->h_name, si->name.len+1);
432 
+		}
433 
+		/* add the aliases*/
434 
+		for(h=he->h_aliases; h && *h; h++)
435 
+			if (add_alias(*h, strlen(*h), si->port_no, si->proto)<0){
436 
+				LOG(L_ERR, "ERROR: fix_socket_list: add_alias failed\n");
437 
+			}
438 
+		hostent2ip_addr(&si->address, he, 0); /*convert to ip_addr
439 
+														 format*/
440 
+		if ((tmp=ip_addr2a(&si->address))==0) goto error;
441 
+		si->address_str.s=(char*)pkg_malloc(strlen(tmp)+1);
442 
+		if (si->address_str.s==0){
443 
+			LOG(L_ERR, "ERROR: fix_socket_list: out of memory.\n");
444 
+			goto error;
445 
+		}
446 
+		strncpy(si->address_str.s, tmp, strlen(tmp)+1);
447 
+		/* set is_ip (1 if name is an ip address, 0 otherwise) */
448 
+		si->address_str.len=strlen(tmp);
449 
+		if 	(	(si->address_str.len==si->name.len)&&
450 
+				(strncasecmp(si->address_str.s, si->name.s,
451 
+								si->address_str.len)==0)
452 
+			){
453 
+				si->flags|=SI_IS_IP;
454 
+				/* do rev. dns on it (for aliases)*/
455 
+				he=rev_resolvehost(&si->address);
456 
+				if (he==0){
457 
+					LOG(L_WARN, "WARNING: fix_socket_list:"
458 
+							" could not rev. resolve %s\n",
459 
+							si->name.s);
460 
+				}else{
461 
+					/* add the aliases*/
462 
+					if (add_alias(he->h_name, strlen(he->h_name),
463 
+									si->port_no, si->proto)<0){
464 
+						LOG(L_ERR, "ERROR: fix_socket_list:"
465 
+									"add_alias failed\n");
466 
+					}
467 
+					for(h=he->h_aliases; h && *h; h++)
468 
+						if (add_alias(*h,strlen(*h),si->port_no,si->proto)<0){
469 
+							LOG(L_ERR, "ERROR: fix_socket_list:"
470 
+									" add_alias failed\n");
471 
+						}
472 
+				}
473 
+		}
474 
+#ifdef EXTRA_DEBUG
475 
+		printf("              %.*s [%s]:%s\n", si->name.len,
476 
+				si->name.s, si->address_str.s, si->port_no_str.s);
477 
+#endif
478 
+	}
479 
+	/* removing duplicate addresses*/
480 
+	for (si=*list;si; si=si->next){
481 
+		for (l=si->next;l;){
482 
+			next=l->next;
483 
+			if ((si->port_no==l->port_no) &&
484 
+				(si->address.af==l->address.af) &&
485 
+				(memcmp(si->address.u.addr, l->address.u.addr, si->address.len)
486 
+					== 0)
487 
+				){
488 
+#ifdef EXTRA_DEBUG
489 
+				printf("removing duplicate %s [%s] ==  %s [%s]\n",
490 
+						si->name.s, si->address_str.s,
491 
+						 l->name.s, l->address_str.s);
492 
+#endif
493 
+				/* add the name to the alias list*/
494 
+				if ((!(l->flags&& SI_IS_IP)) && (
495 
+						(l->name.len!=si->name.len)||
496 
+						(strncmp(l->name.s, si->name.s, si->name.len)!=0))
497 
+					)
498 
+					add_alias(l->name.s, l->name.len, l->port_no, l->proto);
499 
+
500 
+				/* remove l*/
501 
+				sock_listrm(list, l);
502 
+				free_sock_info(l);
503 
+			}
504 
+			l=next;
505 
+		}
506 
+	}
507 
+	return 0;
508 
+error:
509 
+	return -1;
510 
+}
511 
+
512 
+
513 
+
514 
+/* fix all 3 socket lists
515 
+ * return 0 on success, -1 on error */
516 
+int fix_all_socket_lists()
517 
+{
518 
+	struct utsname myname;
519 
+
520 
+	if ((udp_listen==0)
521 
+#ifdef USE_TCP
522 
+			&& (tcp_listen==0)
523 
+#ifdef USE_TLS
524 
+			&& (tls_listen==0)
525 
+#endif
526 
+#endif
527 
+		){
528 
+		/* get all listening ipv4 interfaces */
529 
+		if (add_interfaces(0, AF_INET, 0,  PROTO_UDP, &udp_listen)==0){
530 
+			/* if ok, try to add the others too */
531 
+#ifdef USE_TCP
532 
+			if (add_interfaces(0, AF_INET, 0,  PROTO_TCP, &tcp_listen)!=0)
533 
+				goto error;
534 
+#ifdef USE_TLS
535 
+			if (add_interfaces(0, AF_INET, 0, PROTO_TLS, &tls_listen)!=0)
536 
+				goto error;
537 
+#endif
538 
+#endif
539 
+		}else{
540 
+			/* if error fall back to get hostname */
541 
+			/* get our address, only the first one */
542 
+			if (uname (&myname) <0){
543 
+				LOG(L_ERR, "ERROR: fix_all_socket_lists: cannot determine"
544 
+						" hostname, try -l address\n");
545 
+				goto error;
546 
+			}
547 
+			if (add_listen_iface(myname.nodename, 0, 0, 0)!=0){
548 
+				LOG(L_ERR, "ERROR: fix_all_socket_lists: add_listen_iface "
549 
+						"failed \n");
550 
+				goto error;
551 
+			}
552 
+		}
553 
+	}
554 
+	if (fix_socket_list(&udp_listen)!=0){
555 
+		LOG(L_ERR, "ERROR: fix_all_socket_lists: fix_socket_list"
556 
+				" udp failed\n");
557 
+		goto error;
558 
+	}
559 
+#ifdef USE_TCP
560 
+	if (fix_socket_list(&tcp_listen)!=0){
561 
+		LOG(L_ERR, "ERROR: fix_all_socket_lists: fix_socket_list"
562 
+				" tcp failed\n");
563 
+		goto error;
564 
+	}
565 
+#ifdef USE_TLS
566 
+	if (fix_socket_list(&tls_listen)!=0){
567 
+		LOG(L_ERR, "ERROR: fix_all_socket_lists: fix_socket_list"
568 
+				" tls failed\n");
569 
+		goto error;
570 
+	}
571 
+#endif
572 
+#endif
573 
+	if ((udp_listen==0)
574 
+#ifdef USE_TCP
575 
+			&& (tcp_listen==0)
576 
+#ifdef USE_TLS
577 
+			&& (tls_listen==0)
578 
+#endif
579 
+#endif
580 
+		){
581 
+		LOG(L_ERR, "ERROR: fix_all_socket_lists: no listening sockets\n");
582 
+		goto error;
583 
+	}
584 
+	return 0;
585 
+error:
586 
+	return -1;
587 
+}
588 
+
589 
+
590 
+
591 
+void print_all_socket_lists()
592 
+{
593 
+	struct socket_info *si;
594 
+	struct socket_info** list;
595 
+	unsigned short proto;
596 
+
597 
+
598 
+	proto=PROTO_UDP;
599 
+	do{
600 
+		list=get_sock_info_list(proto);
601 
+		for(si=list?*list:0; si; si=si->next){
602 
+			printf("             %s: %s [%s]:%s\n", get_proto_name(proto),
603 
+						si->name.s, si->address_str.s, si->port_no_str.s);
604 
+		}
605 
+	}while((proto=next_proto(proto)));
606 
+}
607 
+
608 
+
609 
+void print_aliases()
610 
+{
611 
+	struct host_alias* a;
612 
+
613 
+	for(a=aliases; a; a=a->next)
614 
+		if (a->port)
615 
+			printf("             %s: %.*s:%d\n", get_proto_name(a->proto),
616 
+					a->alias.len, a->alias.s, a->port);
617 
+		else
618 
+			printf("             %s: %.*s:*\n", get_proto_name(a->proto),
619 
+					a->alias.len, a->alias.s);
620 
+}
socket_info.h
History View file @ ab63a9a607
0 621 
new file mode 100644
... ... 
@@ -0,0 +1,112 @@
0 
+/* $Id$
1 
+ *
2 
+ * find & manage listen addresses
3 
+ *
4 
+ * Copyright (C) 2001-2003 Fhg Fokus
5 
+ *
6 
+ * This file is part of ser, a free SIP server.
7 
+ *
8 
+ * ser is free software; you can redistribute it and/or modify
9 
+ * it under the terms of the GNU General Public License as published by
10 
+ * the Free Software Foundation; either version 2 of the License, or
11 
+ * (at your option) any later version
12 
+ *
13 
+ * For a license to use the ser software under conditions
14 
+ * other than those described here, or to purchase support for this
15 
+ * software, please contact iptel.org by e-mail at the following addresses:
16 
+ *    info@iptel.org
17 
+ *
18 
+ * ser is distributed in the hope that it will be useful,
19 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 
+ * GNU General Public License for more details.
22 
+ *
23 
+ * You should have received a copy of the GNU General Public License
24 
+ * along with this program; if not, write to" the Free Software
25 
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
26 
+ */
27 
+/*
28 
+ * This file contains code that initializes and handles ser listen addresses
29 
+ * lists (struct socket_info). It is used mainly on startup.
30 
+ *
31 
+ * History:
32 
+ * --------
33 
+ *  2003-10-22  created by andrei
34 
+ */
35 
+
36 
+
37 
+#ifndef socket_info_h
38 
+#define socket_info_h
39 
+
40 
+#include "ip_addr.h"
41 
+#include "dprint.h"
42 
+/* struct socket_info is defined in ip_addr.h */
43 
+
44 
+struct socket_info* udp_listen;
45 
+#ifdef USE_TCP
46 
+struct socket_info* tcp_listen;
47 
+#endif
48 
+#ifdef USE_TLS
49 
+struct socket_info* tls_listen;
50 
+#endif
51 
+
52 
+
53 
+int add_listen_iface(char* name, unsigned short port, unsigned short proto,
54 
+							enum si_flags flags);
55 
+int fix_all_socket_lists();
56 
+void print_all_socket_lists();
57 
+void print_aliases();
58 
+
59 
+
60 
+/* helper function:
61 
+ * returns next protocol, if the last one is reached return 0
62 
+ * usefull for cycling on the supported protocols */
63 
+static inline int next_proto(unsigned short proto)
64 
+{
65 
+	switch(proto){
66 
+		case PROTO_NONE:
67 
+			return PROTO_UDP;
68 
+		case PROTO_UDP:
69 
+#ifdef	USE_TCP
70 
+			return PROTO_TCP;
71 
+#else
72 
+			return 0;
73 
+#endif
74 
+#ifdef USE_TCP
75 
+		case PROTO_TCP:
76 
+#ifdef USE_TLS
77 
+			return PROTO_TLS;
78 
+#else
79 
+			return 0;
80 
+#endif
81 
+#endif
82 
+#ifdef USE_TLS
83 
+		case PROTO_TLS:
84 
+			return 0;
85 
+#endif
86 
+		default:
87 
+			LOG(L_ERR, "ERROR: next_proto: unknown proto %d\n", proto);
88 
+	}
89 
+	return 0;
90 
+}
91 
+
92 
+
93 
+
94 
+/* gets first non-null socket_info structure
95 
+ * (usefull if for. e.g we are not listening on any udp sockets )
96 
+ */
97 
+inline static struct socket_info* get_first_socket()
98 
+{
99 
+	if (udp_listen) return udp_listen;
100 
+#ifdef USE_TCP
101 
+	else if (tcp_listen) return tcp_listen;
102 
+#ifdef USE_TLS
103 
+	else if (tls_listen) return tls_listen;
104 
+#endif
105 
+#endif
106 
+	return 0;
107 
+}
108 
+
109 
+
110 
+
111 
+#endif