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Diffstat (limited to 'ares')
-rw-r--r--ares/ares_gethostbyaddr.c23
1 files changed, 11 insertions, 12 deletions
diff --git a/ares/ares_gethostbyaddr.c b/ares/ares_gethostbyaddr.c
index b6836d053..909132e77 100644
--- a/ares/ares_gethostbyaddr.c
+++ b/ares/ares_gethostbyaddr.c
@@ -58,8 +58,7 @@ static void addr_callback(void *arg, int status, int timeouts,
static void end_aquery(struct addr_query *aquery, int status,
struct hostent *host);
static int file_lookup(union ares_addr *addr, int family, struct hostent **host);
-static void ptr_rr_name(char *name, size_t len, int family,
- union ares_addr *addr);
+static void ptr_rr_name(char *name, int family, union ares_addr *addr);
void ares_gethostbyaddr(ares_channel channel, const void *addr, int addrlen,
int family, ares_host_callback callback, void *arg)
@@ -111,7 +110,7 @@ static void next_lookup(struct addr_query *aquery)
switch (*p)
{
case 'b':
- ptr_rr_name(name, sizeof(name), aquery->family, &aquery->addr);
+ ptr_rr_name(name, aquery->family, &aquery->addr);
aquery->remaining_lookups = p + 1;
ares_query(aquery->channel, name, C_IN, T_PTR, addr_callback,
aquery);
@@ -245,21 +244,21 @@ static int file_lookup(union ares_addr *addr, int family, struct hostent **host)
return status;
}
-static void ptr_rr_name(char *name, size_t len, int family,
- union ares_addr *addr) {
+static void ptr_rr_name(char *name, int family, union ares_addr *addr)
+{
if (family == AF_INET)
{
- in_addr_t s_addr = ntohl(addr->addr4.s_addr);
- int a1 = (int)((s_addr >> 24) & 0xff);
- int a2 = (int)((s_addr >> 16) & 0xff);
- int a3 = (int)((s_addr >> 8) & 0xff);
- int a4 = (int)(s_addr & 0xff);
- snprintf(name, len, "%d.%d.%d.%d.in-addr.arpa", a4, a3, a2, a1);
+ unsigned long laddr = ntohl(addr->addr4.s_addr);
+ int a1 = (int)((laddr >> 24) & 0xff);
+ int a2 = (int)((laddr >> 16) & 0xff);
+ int a3 = (int)((laddr >> 8) & 0xff);
+ int a4 = (int)(laddr & 0xff);
+ sprintf(name, "%d.%d.%d.%d.in-addr.arpa", a4, a3, a2, a1);
}
else
{
unsigned char *bytes = (unsigned char *)&addr->addr6.s6_addr;
- snprintf(name, len,
+ sprintf(name,
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x."
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.ip6.arpa",
bytes[15]&0xf, bytes[15] >> 4, bytes[14]&0xf, bytes[14] >> 4,