| yp_dnslookup.c (74462) | yp_dnslookup.c (90297) |
|---|---|
| 1/* 2 * Copyright (c) 1995, 1996 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 18 unchanged lines hidden (view full) --- 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#ifndef lint 34static const char rcsid[] = | 1/* 2 * Copyright (c) 1995, 1996 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 18 unchanged lines hidden (view full) --- 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#ifndef lint 34static const char rcsid[] = |
| 35 "$FreeBSD: head/usr.sbin/ypserv/yp_dnslookup.c 74462 2001-03-19 12:50:13Z alfred $"; | 35 "$FreeBSD: head/usr.sbin/ypserv/yp_dnslookup.c 90297 2002-02-06 13:30:31Z des $"; |
| 36#endif /* not lint */ 37 38/* 39 * Do standard and reverse DNS lookups using the resolver library. 40 * Take care of all the dirty work here so the main program only has to 41 * pass us a pointer to an array of characters. 42 * 43 * We have to use direct resolver calls here otherwise the YP server --- 54 unchanged lines hidden (view full) --- 98} 99 100#define MAXPACKET 1024 101#define DEF_TTL 50 102 103#define BY_DNS_ID 1 104#define BY_RPC_XID 2 105 | 36#endif /* not lint */ 37 38/* 39 * Do standard and reverse DNS lookups using the resolver library. 40 * Take care of all the dirty work here so the main program only has to 41 * pass us a pointer to an array of characters. 42 * 43 * We have to use direct resolver calls here otherwise the YP server --- 54 unchanged lines hidden (view full) --- 98} 99 100#define MAXPACKET 1024 101#define DEF_TTL 50 102 103#define BY_DNS_ID 1 104#define BY_RPC_XID 2 105 |
| 106extern struct hostent *__dns_getanswer __P((char *, int, char *, int)); | 106extern struct hostent *__dns_getanswer(char *, int, char *, int); |
| 107 108static TAILQ_HEAD(dns_qhead, circleq_dnsentry) qhead; 109 110struct circleq_dnsentry { 111 SVCXPRT *xprt; 112 unsigned long xid; 113 struct sockaddr_in client_addr; 114 unsigned long ypvers; --- 82 unchanged lines hidden (view full) --- 197 198static struct circleq_dnsentry *yp_find_dnsqent(id, type) 199 unsigned long id; 200 int type; 201{ 202 register struct circleq_dnsentry *q; 203 204 TAILQ_FOREACH(q, &qhead, links) { | 107 108static TAILQ_HEAD(dns_qhead, circleq_dnsentry) qhead; 109 110struct circleq_dnsentry { 111 SVCXPRT *xprt; 112 unsigned long xid; 113 struct sockaddr_in client_addr; 114 unsigned long ypvers; --- 82 unchanged lines hidden (view full) --- 197 198static struct circleq_dnsentry *yp_find_dnsqent(id, type) 199 unsigned long id; 200 int type; 201{ 202 register struct circleq_dnsentry *q; 203 204 TAILQ_FOREACH(q, &qhead, links) { |
| 205 switch(type) { | 205 switch (type) { |
| 206 case BY_RPC_XID: 207 if (id == q->xid) 208 return(q); 209 break; 210 case BY_DNS_ID: 211 default: 212 if (id == q->id) 213 return(q); --- 13 unchanged lines hidden (view full) --- 227 struct sockaddr_in client_addr; 228 xdrproc_t xdrfunc; 229 char *result; 230 231 /* 232 * Set up correct reply struct and 233 * XDR filter depending on ypvers. 234 */ | 206 case BY_RPC_XID: 207 if (id == q->xid) 208 return(q); 209 break; 210 case BY_DNS_ID: 211 default: 212 if (id == q->id) 213 return(q); --- 13 unchanged lines hidden (view full) --- 227 struct sockaddr_in client_addr; 228 xdrproc_t xdrfunc; 229 char *result; 230 231 /* 232 * Set up correct reply struct and 233 * XDR filter depending on ypvers. 234 */ |
| 235 switch(q->ypvers) { | 235 switch (q->ypvers) { |
| 236 case YPVERS: 237 bzero((char *)&result_v2, sizeof(result_v2)); 238 239 if (buf == NULL) 240 result_v2.stat = YP_NOKEY; 241 else { 242 result_v2.val.valdat_len = strlen(buf); 243 result_v2.val.valdat_val = buf; --- 70 unchanged lines hidden (view full) --- 314 * Decrement TTL on all queue entries, possibly nuking 315 * any that have been around too long without being serviced. 316 */ 317void yp_prune_dnsq() 318{ 319 register struct circleq_dnsentry *q, *n; 320 321 q = TAILQ_FIRST(&qhead); | 236 case YPVERS: 237 bzero((char *)&result_v2, sizeof(result_v2)); 238 239 if (buf == NULL) 240 result_v2.stat = YP_NOKEY; 241 else { 242 result_v2.val.valdat_len = strlen(buf); 243 result_v2.val.valdat_val = buf; --- 70 unchanged lines hidden (view full) --- 314 * Decrement TTL on all queue entries, possibly nuking 315 * any that have been around too long without being serviced. 316 */ 317void yp_prune_dnsq() 318{ 319 register struct circleq_dnsentry *q, *n; 320 321 q = TAILQ_FIRST(&qhead); |
| 322 while(q != NULL) { | 322 while (q != NULL) { |
| 323 q->ttl--; 324 n = TAILQ_NEXT(q, links); 325 if (!q->ttl) { 326 TAILQ_REMOVE(&qhead, q, links); 327 free(q->name); 328 free(q); 329 pending--; 330 } --- 161 unchanged lines hidden (view full) --- 492 type = -1; len = sizeof(type); 493 if (getsockopt(rqstp->rq_xprt->xp_fd, SOL_SOCKET, 494 SO_TYPE, &type, &len) == -1) { 495 yp_error("getsockopt failed: %s", strerror(errno)); 496 return(YP_YPERR); 497 } 498 499 /* Avoid transmitting dupe requests. */ | 323 q->ttl--; 324 n = TAILQ_NEXT(q, links); 325 if (!q->ttl) { 326 TAILQ_REMOVE(&qhead, q, links); 327 free(q->name); 328 free(q); 329 pending--; 330 } --- 161 unchanged lines hidden (view full) --- 492 type = -1; len = sizeof(type); 493 if (getsockopt(rqstp->rq_xprt->xp_fd, SOL_SOCKET, 494 SO_TYPE, &type, &len) == -1) { 495 yp_error("getsockopt failed: %s", strerror(errno)); 496 return(YP_YPERR); 497 } 498 499 /* Avoid transmitting dupe requests. */ |
| 500 if (type == SOCK_DGRAM && | 500 if (type == SOCK_DGRAM && |
| 501 yp_find_dnsqent(svcudp_get_xid(rqstp->rq_xprt),BY_RPC_XID) != NULL) 502 return(YP_TRUE); 503 504 if ((q = yp_malloc_dnsent()) == NULL) 505 return(YP_YPERR); 506 507 if (sscanf(addr, "%d.%d.%d.%d", &a, &b, &c, &d) != 4) 508 return(YP_NOKEY); --- 34 unchanged lines hidden --- | 501 yp_find_dnsqent(svcudp_get_xid(rqstp->rq_xprt),BY_RPC_XID) != NULL) 502 return(YP_TRUE); 503 504 if ((q = yp_malloc_dnsent()) == NULL) 505 return(YP_YPERR); 506 507 if (sscanf(addr, "%d.%d.%d.%d", &a, &b, &c, &d) != 4) 508 return(YP_NOKEY); --- 34 unchanged lines hidden --- |