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Handle scope IDs in resolv.conf.

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This commit is contained in:
Ulrich Drepper 2008-04-07 17:20:25 +00:00
parent ae39e102cb
commit a7eba295f0
1 changed files with 36 additions and 10 deletions
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46
resolv/res_init.c
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@ -69,22 +69,22 @@ static const char sccsid[] = "@(#)res_init.c 8.1 (Berkeley) 6/7/93";
static const char rcsid[] = "$BINDId: res_init.c,v 8.16 2000/05/09 07:10:12 vixie Exp $";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <ctype.h>
#include <netdb.h>
#include <resolv.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <not-cancel.h>
@ -327,15 +327,41 @@ __res_vinit(res_state statp, int preinit) {
if ((el = strchr(cp, '\n')) != NULL)
*el = '\0';
if ((el = strchr(cp, SCOPE_DELIMITER)) != NULL)
*el = '\0';
if ((*cp != '\0') &&
(inet_pton(AF_INET6, cp, &a6) > 0)) {
struct sockaddr_in6 *sa6;
sa6 = malloc(sizeof(*sa6));
if (sa6 != NULL) {
sa6->sin6_addr = a6;
sa6->sin6_family = AF_INET6;
sa6->sin6_port = htons(NAMESERVER_PORT);
sa6->sin6_flowinfo = 0;
sa6->sin6_addr = a6;
if (__builtin_expect (el == NULL, 1))
sa6->sin6_scope_id = 0;
else {
int try_numericscope = 1;
if (IN6_IS_ADDR_LINKLOCAL (&a6)
|| IN6_IS_ADDR_MC_LINKLOCAL (&a6)) {
sa6->sin6_scope_id
= if_nametoindex (el + 1);
if (sa6->sin6_scope_id != 0)
try_numericscope = 0;
}
if (try_numericscope) {
char *end;
sa6->sin6_scope_id
= (uint32_t) strtoul (el + 1, &end,
10);
if (*end != '\0')
sa6->sin6_scope_id = 0;
}
}
statp->_u._ext.nsaddrs[nservall] = sa6;
statp->_u._ext.nssocks[nservall] = -1;
statp->_u._ext.nsmap[nservall] = MAXNS + 1;