[398] | 1 | #include <sys/socket.h>
|
---|
| 2 | #include <netinet/in.h>
|
---|
| 3 | #include <netdb.h>
|
---|
| 4 | #include <net/if.h>
|
---|
| 5 | #include <arpa/inet.h>
|
---|
| 6 | #include <limits.h>
|
---|
| 7 | #include <stdlib.h>
|
---|
| 8 | #include <string.h>
|
---|
| 9 | #include <ctype.h>
|
---|
| 10 | #include "lookup.h"
|
---|
| 11 |
|
---|
| 12 | int __inet_aton(const char *, struct in_addr *);
|
---|
| 13 |
|
---|
| 14 | int __lookup_ipliteral(struct address buf[static 1], const char *name, int family)
|
---|
| 15 | {
|
---|
| 16 | struct in_addr a4;
|
---|
| 17 | struct in6_addr a6;
|
---|
| 18 | if (__inet_aton(name, &a4) > 0) {
|
---|
| 19 | if (family == AF_INET6) /* wrong family */
|
---|
| 20 | return EAI_NONAME;
|
---|
| 21 | memcpy(&buf[0].addr, &a4, sizeof a4);
|
---|
| 22 | buf[0].family = AF_INET;
|
---|
| 23 | buf[0].scopeid = 0;
|
---|
| 24 | return 1;
|
---|
| 25 | }
|
---|
| 26 |
|
---|
| 27 | char tmp[64];
|
---|
| 28 | char *p = strchr(name, '%'), *z;
|
---|
| 29 | unsigned long long scopeid = 0;
|
---|
| 30 | if (p && p-name < 64) {
|
---|
| 31 | memcpy(tmp, name, p-name);
|
---|
| 32 | tmp[p-name] = 0;
|
---|
| 33 | name = tmp;
|
---|
| 34 | }
|
---|
| 35 |
|
---|
| 36 | if (inet_pton(AF_INET6, name, &a6) <= 0)
|
---|
| 37 | return 0;
|
---|
| 38 | if (family == AF_INET) /* wrong family */
|
---|
| 39 | return EAI_NONAME;
|
---|
| 40 |
|
---|
| 41 | memcpy(&buf[0].addr, &a6, sizeof a6);
|
---|
| 42 | buf[0].family = AF_INET6;
|
---|
| 43 | if (p) {
|
---|
| 44 | if (isdigit(*++p)) scopeid = strtoull(p, &z, 10);
|
---|
| 45 | else z = p-1;
|
---|
| 46 | if (*z) {
|
---|
| 47 | if (!IN6_IS_ADDR_LINKLOCAL(&a6) &&
|
---|
| 48 | !IN6_IS_ADDR_MC_LINKLOCAL(&a6))
|
---|
| 49 | return EAI_NONAME;
|
---|
| 50 | scopeid = if_nametoindex(p);
|
---|
| 51 | if (!scopeid) return EAI_NONAME;
|
---|
| 52 | }
|
---|
| 53 | if (scopeid > UINT_MAX) return EAI_NONAME;
|
---|
| 54 | }
|
---|
| 55 | buf[0].scopeid = scopeid;
|
---|
| 56 | return 1;
|
---|
| 57 | }
|
---|