5  * Redistribution and use in source and binary forms, with or without
15  * or promote products derived from this software without specific prior
17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21  * Name to id translation routines used by the scanner.
42      *    https://msdn.microsoft.com/en-us/library/windows/desktop/ms738520(v=vs.85).aspx
136 #include "pcap-int.h"
143 #include "os-proto.h"
152  *  Convert host name to internet address.
154  *  XXX - not thread-safe; don't use it inside libpcap.
167 		hlist[0] = (bpf_u_int32 *)hp->h_addr;  in pcap_nametoaddr()
168 		NTOHL(hp->h_addr);  in pcap_nametoaddr()
171 		for (p = (bpf_u_int32 **)hp->h_addr_list; *p; ++p)  in pcap_nametoaddr()
173 		return (bpf_u_int32 **)hp->h_addr_list;  in pcap_nametoaddr()
200  *  XXX - not guaranteed to be thread-safe!  See below for platforms
201  *  on which it is thread-safe and on which it isn't.
210 	 * XXX - I guess we could use the BSD code to read  in pcap_nametonetaddr()
238 		 * XXX - dynamically allocate the buffer, and make it  in pcap_nametonetaddr()
258 	if (getnetbyname_r(name, &result_buf, &net_data) == -1)  in pcap_nametonetaddr()
265  	 * getnetbyname() that uses thread-specific data, in which  in pcap_nametonetaddr()
266  	 * case we're thread-safe (sufficiently recent FreeBSD,  in pcap_nametonetaddr()
267  	 * sufficiently recent Darwin-based OS, sufficiently recent  in pcap_nametonetaddr()
268  	 * HP-UX, sufficiently recent Tru64 UNIX), or we have the  in pcap_nametonetaddr()
271  	 * thread-safe.  in pcap_nametonetaddr()
276 		return np->n_net;  in pcap_nametonetaddr()
296 	int tcp_port = -1;  in pcap_nametoport()
297 	int udp_port = -1;  in pcap_nametoport()
314 			 * XXX - this doesn't return an error string.  in pcap_nametoport()
322 		for (ai = res; ai != NULL; ai = ai->ai_next) {  in pcap_nametoport()
326 			if (ai->ai_addr != NULL) {  in pcap_nametoport()
330 				if (ai->ai_addr->sa_family == AF_INET) {  in pcap_nametoport()
331 					in4 = (struct sockaddr_in *)ai->ai_addr;  in pcap_nametoport()
332 					tcp_port = ntohs(in4->sin_port);  in pcap_nametoport()
336 				if (ai->ai_addr->sa_family == AF_INET6) {  in pcap_nametoport()
337 					in6 = (struct sockaddr_in6 *)ai->ai_addr;  in pcap_nametoport()
338 					tcp_port = ntohs(in6->sin6_port);  in pcap_nametoport()
358 			 * XXX - this doesn't return an error string.  in pcap_nametoport()
366 		for (ai = res; ai != NULL; ai = ai->ai_next) {  in pcap_nametoport()
370 			if (ai->ai_addr != NULL) {  in pcap_nametoport()
374 				if (ai->ai_addr->sa_family == AF_INET) {  in pcap_nametoport()
375 					in4 = (struct sockaddr_in *)ai->ai_addr;  in pcap_nametoport()
376 					udp_port = ntohs(in4->sin_port);  in pcap_nametoport()
380 				if (ai->ai_addr->sa_family == AF_INET6) {  in pcap_nametoport()
381 					in6 = (struct sockaddr_in6 *)ai->ai_addr;  in pcap_nametoport()
382 					udp_port = ntohs(in6->sin6_port);  in pcap_nametoport()
430  * Convert a string in the form PPP-PPP, where correspond to ports, to
441 	if (sscanf(name, "%d-%d", &p1, &p2) != 2) {  in pcap_nametoportrange()
445 		if ((off = strchr(cpy, '-')) == NULL) {  in pcap_nametoportrange()
476  * XXX - not guaranteed to be thread-safe!  See below for platforms
477  * on which it is thread-safe and on which it isn't.
494 		 * XXX - dynamically allocate the buffer, and make it  in pcap_nametoproto()
514 	if (getprotobyname_r(str, &result_buf, &proto_data) == -1)  in pcap_nametoproto()
521  	 * getprotobyname() that uses thread-specific data, in which  in pcap_nametoproto()
522  	 * case we're thread-safe (sufficiently recent FreeBSD,  in pcap_nametoproto()
523  	 * sufficiently recent Darwin-based OS, sufficiently recent  in pcap_nametoproto()
524  	 * HP-UX, sufficiently recent Tru64 UNIX, Windows), or we have  in pcap_nametoproto()
527  	 * thread-safe.  in pcap_nametoproto()
532 		return p->p_proto;  in pcap_nametoproto()
587 	while (p->s != 0) {  in pcap_nametoeproto()
588 		if (strcmp(p->s, s) == 0)  in pcap_nametoeproto()
589 			return p->p;  in pcap_nametoeproto()
611 	while (p->s != 0) {  in pcap_nametollc()
612 		if (strcmp(p->s, s) == 0)  in pcap_nametollc()
613 			return p->p;  in pcap_nametollc()
619 /* Hex digit to 8-bit unsigned integer. */
624 		return (u_char)(c - '0');  in xdtoi()
626 		return (u_char)(c - 'a' + 10);  in xdtoi()
628 		return (u_char)(c - 'A' + 10);  in xdtoi()
642 			n = n * 10 + *s++ - '0';  in __pcap_atoin()
676  *	"xx-xx-xx-xx-xx-xx"
680  * (or various mixes of ':', '.', and '-') into a new
694 		if (*s == ':' || *s == '.' || *s == '-')  in pcap_ether_aton()
710  * XXX - not thread-safe, because pcap_next_etherent() isn't thread-
711  * safe!  Needs a mutex or a thread-safe pcap_next_etherent().
732 		if (strcmp(ep->name, name) == 0) {  in pcap_ether_hostton()
735 				memcpy(ap, ep->addr, 6);  in pcap_ether_hostton()
745  * Use the OS-supplied routine.
746  * This *should* be thread-safe; the API doesn't have a static buffer.
765  * XXX - not guaranteed to be thread-safe!
778 	memcpy((char *)res, (char *)nep->n_addr, sizeof(unsigned short));