have _THREAD_PRIVATE_MUTEX for DNS/YP/hosts lookup.

1 files changed, 16 insertions, 3 deletions

diff --git a/src/lib/libc/net/getaddrinfo.c b/src/lib/libc/net/getaddrinfo.c
index 4b02f8f106..364bffedeb 100644
--- a/src/lib/libc/net/getaddrinfo.c
+++ b/src/lib/libc/net/getaddrinfo.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: getaddrinfo.c,v 1.39 2002/07/01 21:57:35 itojun Exp $ */
+/*      $OpenBSD: getaddrinfo.c,v 1.40 2002/07/24 01:38:34 itojun Exp $ */
 /*      $KAME: getaddrinfo.c,v 1.31 2000/08/31 17:36:43 itojun Exp $    */
 
 /*
@@ -108,6 +108,8 @@
 #include "ypinternal.h"
 #endif
 
+#include "thread_private.h"
+
 #define SUCCESS 0
 #define ANY 0
 #define YES 1
@@ -500,6 +502,9 @@ getaddrinfo(hostname, servname, hints, res)
 /*
  * FQDN hostname, DNS lookup
  */
+
+_THREAD_PRIVATE_MUTEX(getaddrinfo_explore_fqdn);
+
 static int
 explore_fqdn(pai, hostname, servname, res)
         const struct addrinfo *pai;
@@ -513,6 +518,8 @@ explore_fqdn(pai, hostname, servname, res)
         char lookups[MAXDNSLUS];
         int i;
 
+        _THREAD_PRIVATE_MUTEX_LOCK(getaddrinfo_explore_fqdn);
+
         result = NULL;
 
 #if 0
@@ -521,15 +528,19 @@ explore_fqdn(pai, hostname, servname, res)
          * return the address family or not.
          * XXX does not handle PF_UNSPEC case, should filter final result
          */
-        if ((pai->ai_flags & AI_ADDRCONFIG) != 0 && !addrconfig(pai))
+        if ((pai->ai_flags & AI_ADDRCONFIG) != 0 && !addrconfig(pai)) {
+                _THREAD_PRIVATE_MUTEX_UNLOCK(getaddrinfo_explore_fqdn);
                 return 0;
+        }
 #endif
 
         /*
          * if the servname does not match socktype/protocol, ignore it.
          */
-        if (get_portmatch(pai, servname) != 0)
+        if (get_portmatch(pai, servname) != 0) {
+                _THREAD_PRIVATE_MUTEX_UNLOCK(getaddrinfo_explore_fqdn);
                 return 0;
+        }
 
         if ((_res.options & RES_INIT) == 0 && res_init() == -1)
                 strncpy(lookups, "f", sizeof lookups);
@@ -560,6 +571,7 @@ explore_fqdn(pai, hostname, servname, res)
                         /* canonname should be filled already */
                 }
                 *res = result;
+                _THREAD_PRIVATE_MUTEX_UNLOCK(getaddrinfo_explore_fqdn);
                 return 0;
         } else {
                 /* translate error code */
@@ -591,6 +603,7 @@ explore_fqdn(pai, hostname, servname, res)
 free:
         if (result)
                 freeaddrinfo(result);
+        _THREAD_PRIVATE_MUTEX_UNLOCK(getaddrinfo_explore_fqdn);
         return error;
 }