| socket.c (123895) | socket.c (146187) |
|---|---|
| 1 /* 2 * This module determines the type of socket (datagram, stream), the client 3 * socket address and port, the server socket address and port. In addition, 4 * it provides methods to map a transport address to a printable host name 5 * or address. Socket address information results are in static memory. 6 * 7 * The result from the hostname lookup method is STRING_PARANOID when a host 8 * pretends to have someone elses name, or when a host name is available but 9 * could not be verified. 10 * 11 * When lookup or conversion fails the result is set to STRING_UNKNOWN. 12 * 13 * Diagnostics are reported through syslog(3). 14 * 15 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. 16 * | 1 /* 2 * This module determines the type of socket (datagram, stream), the client 3 * socket address and port, the server socket address and port. In addition, 4 * it provides methods to map a transport address to a printable host name 5 * or address. Socket address information results are in static memory. 6 * 7 * The result from the hostname lookup method is STRING_PARANOID when a host 8 * pretends to have someone elses name, or when a host name is available but 9 * could not be verified. 10 * 11 * When lookup or conversion fails the result is set to STRING_UNKNOWN. 12 * 13 * Diagnostics are reported through syslog(3). 14 * 15 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. 16 * |
| 17 * $FreeBSD: head/contrib/tcp_wrappers/socket.c 123895 2003-12-27 14:58:00Z ceri $ | 17 * $FreeBSD: head/contrib/tcp_wrappers/socket.c 146187 2005-05-13 16:31:11Z ume $ |
| 18 */ 19 20#ifndef lint 21static char sccsid[] = "@(#) socket.c 1.15 97/03/21 19:27:24"; 22#endif 23 24/* System libraries. */ 25 26#include <sys/types.h> 27#include <sys/param.h> 28#include <sys/socket.h> 29#include <netinet/in.h> 30#include <netdb.h> 31#include <stdio.h> 32#include <syslog.h> 33#include <string.h> 34 | 18 */ 19 20#ifndef lint 21static char sccsid[] = "@(#) socket.c 1.15 97/03/21 19:27:24"; 22#endif 23 24/* System libraries. */ 25 26#include <sys/types.h> 27#include <sys/param.h> 28#include <sys/socket.h> 29#include <netinet/in.h> 30#include <netdb.h> 31#include <stdio.h> 32#include <syslog.h> 33#include <string.h> 34 |
| 35#ifdef INET6 36#ifndef NI_WITHSCOPEID 37#define NI_WITHSCOPEID 0 38#endif 39#else | 35#ifndef INET6 |
| 40extern char *inet_ntoa(); 41#endif 42 43/* Local stuff. */ 44 45#include "tcpd.h" 46 47/* Forward declarations. */ --- 106 unchanged lines hidden (view full) --- 154 return; 155#ifdef SIN6_LEN 156 salen = sin->sa_len; 157#else 158 salen = (sin->sa_family == AF_INET) ? sizeof(struct sockaddr_in) 159 : sizeof(struct sockaddr_in6); 160#endif 161 getnameinfo(sin, salen, host->addr, sizeof(host->addr), | 36extern char *inet_ntoa(); 37#endif 38 39/* Local stuff. */ 40 41#include "tcpd.h" 42 43/* Forward declarations. */ --- 106 unchanged lines hidden (view full) --- 150 return; 151#ifdef SIN6_LEN 152 salen = sin->sa_len; 153#else 154 salen = (sin->sa_family == AF_INET) ? sizeof(struct sockaddr_in) 155 : sizeof(struct sockaddr_in6); 156#endif 157 getnameinfo(sin, salen, host->addr, sizeof(host->addr), |
| 162 NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID); | 158 NULL, 0, NI_NUMERICHOST); |
| 163#else 164 struct sockaddr_in *sin = host->sin; 165 166 if (sin != 0) 167 STRN_CPY(host->addr, inet_ntoa(sin->sin_addr), sizeof(host->addr)); 168#endif 169} 170 --- 35 unchanged lines hidden (view full) --- 206 alen = sizeof(struct in6_addr); 207 salen = sizeof(struct sockaddr_in6); 208 break; 209 default: 210 break; 211 } 212 if (ap) 213 err = getnameinfo(sin, salen, hname, sizeof(hname), | 159#else 160 struct sockaddr_in *sin = host->sin; 161 162 if (sin != 0) 163 STRN_CPY(host->addr, inet_ntoa(sin->sin_addr), sizeof(host->addr)); 164#endif 165} 166 --- 35 unchanged lines hidden (view full) --- 202 alen = sizeof(struct in6_addr); 203 salen = sizeof(struct sockaddr_in6); 204 break; 205 default: 206 break; 207 } 208 if (ap) 209 err = getnameinfo(sin, salen, hname, sizeof(hname), |
| 214 NULL, 0, NI_WITHSCOPEID | NI_NAMEREQD); | 210 NULL, 0, NI_NAMEREQD); |
| 215 } 216 if (!err) { 217 218 STRN_CPY(host->name, hname, sizeof(host->name)); 219 220 /* reject numeric addresses */ 221 memset(&hints, 0, sizeof(hints)); 222 hints.ai_family = sin->sa_family; --- 88 unchanged lines hidden (view full) --- 311 312 /* 313 * The host name does not map to the initial address. Perhaps 314 * someone has messed up. Perhaps someone compromised a name 315 * server. 316 */ 317 318 getnameinfo(sin, salen, hname, sizeof(hname), | 211 } 212 if (!err) { 213 214 STRN_CPY(host->name, hname, sizeof(host->name)); 215 216 /* reject numeric addresses */ 217 memset(&hints, 0, sizeof(hints)); 218 hints.ai_family = sin->sa_family; --- 88 unchanged lines hidden (view full) --- 307 308 /* 309 * The host name does not map to the initial address. Perhaps 310 * someone has messed up. Perhaps someone compromised a name 311 * server. 312 */ 313 314 getnameinfo(sin, salen, hname, sizeof(hname), |
| 319 NULL, 0, NI_NUMERICHOST | NI_WITHSCOPEID); | 315 NULL, 0, NI_NUMERICHOST); |
| 320 tcpd_warn("host name/address mismatch: %s != %.*s", 321 hname, STRING_LENGTH, 322 (res0->ai_canonname == NULL) ? "" : res0->ai_canonname); 323 } 324 strcpy(host->name, paranoid); /* name is bad, clobber it */ 325 if (res0) 326 freeaddrinfo(res0); 327 } --- 103 unchanged lines hidden --- | 316 tcpd_warn("host name/address mismatch: %s != %.*s", 317 hname, STRING_LENGTH, 318 (res0->ai_canonname == NULL) ? "" : res0->ai_canonname); 319 } 320 strcpy(host->name, paranoid); /* name is bad, clobber it */ 321 if (res0) 322 freeaddrinfo(res0); 323 } --- 103 unchanged lines hidden --- |