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authorUlrich Drepper <drepper@redhat.com>2007-09-23 20:34:25 +0000
committerUlrich Drepper <drepper@redhat.com>2007-09-23 20:34:25 +0000
commit91633816430e7ec5a19fe3ff510a7c4822a9557e (patch)
treec8ccac4a1655a4c822f3aea748be24ffd2270c2e /resolv/ns_print.c
parent9cc198f65ba914867c8146ab23e0c6adac22a1fb (diff)
downloadglibc-91633816430e7ec5a19fe3ff510a7c4822a9557e.tar.gz
* resolv/ns_print.c (ns_sprintrrf): Handle ns_t_a6 and ns_t_opt.
Provide better error message in case the type is unknown.
Diffstat (limited to 'resolv/ns_print.c')
-rw-r--r--resolv/ns_print.c49
1 files changed, 45 insertions, 4 deletions
diff --git a/resolv/ns_print.c b/resolv/ns_print.c
index 12b2e67ea6..b0b7a1046e 100644
--- a/resolv/ns_print.c
+++ b/resolv/ns_print.c
@@ -112,6 +112,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
const char *comment;
char tmp[100];
+ char errbuf[40];
int len, x;
/*
@@ -174,11 +175,11 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
rdata += len;
T(addstr(" ", 1, &buf, &buflen));
-
+
/* Second word, optional in ISDN records. */
if (type == ns_t_isdn && rdata == edata)
break;
-
+
T(len = charstr(rdata, edata, &buf, &buflen));
if (len == 0)
goto formerr;
@@ -596,7 +597,7 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
}
else
leader = " ";
-
+
for (n = 0; n < len; n += 48) {
T(addstr(leader, strlen(leader),
&buf, &buflen));
@@ -625,8 +626,48 @@ ns_sprintrrf(const u_char *msg, size_t msglen,
break;
}
+ case ns_t_a6: {
+ struct in6_addr a;
+ int pbyte, pbit;
+
+ /* prefix length */
+ if (rdlen == 0U) goto formerr;
+ len = SPRINTF((tmp, "%d ", *rdata));
+ T(addstr(tmp, len, &buf, &buflen));
+ pbit = *rdata;
+ if (pbit > 128) goto formerr;
+ pbyte = (pbit & ~7) / 8;
+ rdata++;
+
+ /* address suffix: provided only when prefix len != 128 */
+ if (pbit < 128) {
+ if (rdata + pbyte >= edata) goto formerr;
+ memset(&a, 0, sizeof(a));
+ memcpy(&a.s6_addr[pbyte], rdata, sizeof(a) - pbyte);
+ (void) inet_ntop(AF_INET6, &a, buf, buflen);
+ addlen(strlen(buf), &buf, &buflen);
+ rdata += sizeof(a) - pbyte;
+ }
+
+ /* prefix name: provided only when prefix len > 0 */
+ if (pbit == 0)
+ break;
+ if (rdata >= edata) goto formerr;
+ T(addstr(" ", 1, &buf, &buflen));
+ T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
+
+ break;
+ }
+
+ case ns_t_opt: {
+ len = SPRINTF((tmp, "%u bytes", class));
+ T(addstr(tmp, len, &buf, &buflen));
+ break;
+ }
+
default:
- comment = "unknown RR type";
+ snprintf (errbuf, sizeof (errbuf), "unknown RR type %d", type);
+ comment = errbuf;
goto hexify;
}
return (buf - obuf);