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* sysdeps/posix/getaddrinfo.c (gaih_inet): Optimize generation of
	v4-mapped addresses a bit.
	(gethosts): Move alloca out of macro, so that it is done only once.
This commit is contained in:
Ulrich Drepper 2004-08-15 22:39:07 +00:00
parent 28977c2c1a
commit 2d26a7173c
2 changed files with 17 additions and 8 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2004-08-15 Ulrich Drepper <drepper@redhat.com>
* sysdeps/posix/getaddrinfo.c (gaih_inet): Optimize generation of
v4-mapped addresses a bit.
(gethosts): Move alloca out of macro, so that it is done only once.
* sysdeps/posix/getaddrinfo.c (gaih_addrtuple): Change type of
addr to avoid casts.
(gethosts): Removed.

21
sysdeps/posix/getaddrinfo.c
View File

@ -282,18 +282,18 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
#define gethosts(_family, _type) \
{ \
int i, herrno; \
size_t tmpbuflen; \
int i; \
int herrno; \
struct hostent th; \
char *tmpbuf = NULL; \
tmpbuflen = 512; \
no_data = 0; \
do { \
tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); \
while (1) { \
rc = 0; \
status = DL_CALL_FCT (fct, (name, _family, &th, tmpbuf, \
tmpbuflen, &rc, &herrno)); \
} while (rc == ERANGE && herrno == NETDB_INTERNAL); \
if (rc != ERANGE || herrno != NETDB_INTERNAL) \
break; \
tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); \
} \
if (status == NSS_STATUS_SUCCESS && rc == 0) \
h = &th; \
else \
@ -585,6 +585,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
int no_more;
nss_gethostbyname2_r fct;
int old_res_options;
size_t tmpbuflen = 512;
char *tmpbuf = alloca (tmpbuflen);
if (__nss_hosts_database != NULL)
{
@ -622,7 +624,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (req->ai_family == AF_INET
|| req->ai_family == AF_UNSPEC
|| (req->ai_family == AF_INET6
&& (req->ai_flags & AI_V4MAPPED)))
&& (req->ai_flags & AI_V4MAPPED)
/* Avoid generating the mapped addresses if we
know we are not going to need them. */
&& ((req->ai_flags & AI_ALL) || !got_ipv6)))
{
gethosts (AF_INET, struct in_addr);