diff options
Diffstat (limited to 'usr.sbin/rtadvd/dump.c')
| -rw-r--r-- | usr.sbin/rtadvd/dump.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/usr.sbin/rtadvd/dump.c b/usr.sbin/rtadvd/dump.c index d37f5db..a94a62e 100644 --- a/usr.sbin/rtadvd/dump.c +++ b/usr.sbin/rtadvd/dump.c @@ -45,6 +45,7 @@ #include <arpa/inet.h> +#include <netdb.h> #include <time.h> #include <stdio.h> #include <stdarg.h> @@ -63,6 +64,7 @@ extern struct rainfo *ralist; static char *ether_str(struct sockaddr_dl *); static void if_dump(void); +static size_t dname_labeldec(char *, const char *); static char *rtpref_str[] = { "medium", /* 00 */ @@ -96,6 +98,10 @@ if_dump() #ifdef ROUTEINFO struct rtinfo *rti; #endif +#ifdef RDNSS + struct rdnss *rdn; + struct dnssl *dns; +#endif char prefixbuf[INET6_ADDRSTRLEN]; int first; struct timeval now; @@ -230,6 +236,44 @@ if_dump() fprintf(fp, ")\n"); } #endif +#ifdef RDNSS + TAILQ_FOREACH(rdn, &rai->rdnss, rd_next) { + struct rdnss_addr *rdna; + + if (rdn == TAILQ_FIRST(&rai->rdnss)) + fprintf(fp, " Recursive DNS servers:\n" + " Lifetime\tServers\n"); + + fprintf(fp, " % 8u\t", rdn->rd_ltime); + TAILQ_FOREACH(rdna, &rdn->rd_list, ra_next) { + inet_ntop(AF_INET6, &rdna->ra_dns, + prefixbuf, sizeof(prefixbuf)); + + if (rdna != TAILQ_FIRST(&rdn->rd_list)) + fprintf(fp, " \t"); + fprintf(fp, "%s\n", prefixbuf); + } + fprintf(fp, "\n"); + } + + TAILQ_FOREACH(dns, &rai->dnssl, dn_next) { + struct dnssl_addr *dnsa; + char buf[NI_MAXHOST + 1]; + + if (dns == TAILQ_FIRST(&rai->dnssl)) + fprintf(fp, " DNS search list:\n" + " Lifetime\tDomains\n"); + + fprintf(fp, " % 8u\t", dns->dn_ltime); + TAILQ_FOREACH(dnsa, &dns->dn_list, da_next) { + dname_labeldec(buf, dnsa->da_dom); + if (dnsa != TAILQ_FIRST(&dns->dn_list)) + fprintf(fp, " \t"); + fprintf(fp, "%s(%d)\n", buf, dnsa->da_len); + } + fprintf(fp, "\n"); + } +#endif } } @@ -250,3 +294,23 @@ rtadvd_dump_file(dumpfile) fclose(fp); } + +/* Decode domain name label encoding in RFC 1035 Section 3.1 */ +static size_t +dname_labeldec(char *dst, const char *src) +{ + size_t len; + const char *src_origin; + + src_origin = src; + while (*src && (len = (uint8_t)(*src++) & 0x3f) != 0) { + syslog(LOG_DEBUG, "<%s> labellen = %d", __func__, len); + memcpy(dst, src, len); + src += len; + dst += len; + if (*(dst - 1) == '\0') + break; + } + + return (src - src_origin); +} |
