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eglibc: add patch to fix DNS issues (RH730856)

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Signed-off-by: Stephan Raue <stephan@openelec.tv>
This commit is contained in:
Stephan Raue 2012-05-14 16:10:34 +02:00
parent bf56620c57
commit 0dbb02918e
1 changed files with 52 additions and 0 deletions
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52
packages/toolchain/devel/eglibc/patches/eglibc-2.15-18222-RH730856.patch Normal file
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@ -0,0 +1,52 @@
diff -rup a/resolv/res_query.c b/resolv/res_query.c
--- a/resolv/res_query.c 2012-02-16 22:51:17.451796009 -0700
+++ b/resolv/res_query.c 2012-02-16 22:54:42.522623598 -0700
@@ -122,6 +122,7 @@ __libc_res_nquery(res_state statp,
int *resplen2)
{
HEADER *hp = (HEADER *) answer;
+ HEADER *hp2;
int n, use_malloc = 0;
u_int oflags = statp->_flags;
@@ -239,26 +240,25 @@ __libc_res_nquery(res_state statp,
/* __libc_res_nsend might have reallocated the buffer. */
hp = (HEADER *) *answerp;
- /* We simplify the following tests by assigning HP to HP2. It
- is easy to verify that this is the same as ignoring all
- tests of HP2. */
- HEADER *hp2 = answerp2 ? (HEADER *) *answerp2 : hp;
-
- if (n < (int) sizeof (HEADER) && answerp2 != NULL
- && *resplen2 > (int) sizeof (HEADER))
+ /* We simplify the following tests by assigning HP to HP2 or
+ vice versa. It is easy to verify that this is the same as
+ ignoring all tests of HP or HP2. */
+ if (answerp2 == NULL || *resplen2 < (int) sizeof (HEADER))
{
- /* Special case of partial answer. */
- assert (hp != hp2);
- hp = hp2;
+ hp2 = hp;
}
- else if (answerp2 != NULL && *resplen2 < (int) sizeof (HEADER)
- && n > (int) sizeof (HEADER))
+ else
{
- /* Special case of partial answer. */
- assert (hp != hp2);
- hp2 = hp;
+ hp2 = (HEADER *) *answerp2;
+ if (n < (int) sizeof (HEADER))
+ {
+ hp = hp2;
+ }
}
+ /* Make sure both hp and hp2 are defined */
+ assert((hp != NULL) && (hp2 != NULL));
+
if ((hp->rcode != NOERROR || ntohs(hp->ancount) == 0)
&& (hp2->rcode != NOERROR || ntohs(hp2->ancount) == 0)) {
#ifdef DEBUG