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From 5f828658a317c86095fc2b982801b58bf8b8ee6f Mon Sep 17 00:00:00 2001
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From: mosvald <mosvald@redhat.com>
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Date: Mon, 4 Dec 2017 08:10:37 +0100
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Subject: [PATCH] cache sin_addr instead of the whole sockaddr structure
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---
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runtime/dnscache.c | 41 +++++++++++++++++++++++++++++++----------
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1 file changed, 31 insertions(+), 10 deletions(-)
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diff --git a/runtime/dnscache.c b/runtime/dnscache.c
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index 388a64f5e..d1d6e10a1 100644
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--- a/runtime/dnscache.c
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+++ b/runtime/dnscache.c
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@@ -79,22 +79,43 @@ static prop_t *staticErrValue;
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static unsigned int
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hash_from_key_fn(void *k)
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{
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- int len;
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- uchar *rkey = (uchar*) k; /* we treat this as opaque bytes */
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- unsigned hashval = 1;
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-
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- len = SALEN((struct sockaddr*)k);
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- while(len--)
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- hashval = hashval * 33 + *rkey++;
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+ int len = 0;
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+ uchar *rkey; /* we treat this as opaque bytes */
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+ unsigned hashval = 1;
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+
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+ switch (((struct sockaddr *)k)->sa_family) {
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+ case AF_INET:
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+ len = sizeof (struct in_addr);
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+ rkey = (uchar*) &(((struct sockaddr_in *)k)->sin_addr);
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+ break;
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+ case AF_INET6:
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+ len = sizeof (struct in6_addr);
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+ rkey = (uchar*) &(((struct sockaddr_in6 *)k)->sin6_addr);
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+ break;
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+ }
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+ while(len--)
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+ hashval = hashval * 33 + *rkey++;
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- return hashval;
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+ return hashval;
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}
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static int
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key_equals_fn(void *key1, void *key2)
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{
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- return (SALEN((struct sockaddr*)key1) == SALEN((struct sockaddr*) key2)
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- && !memcmp(key1, key2, SALEN((struct sockaddr*) key1)));
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+ int RetVal = 0;
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+
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+ if (((struct sockaddr *)key1)->sa_family != ((struct sockaddr *)key2)->sa_family)
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+ return 0;
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+ switch (((struct sockaddr *)key1)->sa_family) {
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+ case AF_INET:
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+ RetVal = !memcmp(&((struct sockaddr_in *)key1)->sin_addr, &((struct sockaddr_in *)key2)->sin_addr, sizeof (struct in_addr));
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+ break;
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+ case AF_INET6:
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+ RetVal = !memcmp(&((struct sockaddr_in6 *)key1)->sin6_addr, &((struct sockaddr_in6 *)key2)->sin6_addr, sizeof (struct in6_addr));
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+ break;
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+ }
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+
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+ return RetVal;
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}
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/* destruct a cache entry.
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--
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2.14.3
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