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authorJulien Cristau <jcristau@debian.org>2009-08-07 16:58:58 +0200
committerAlan Coopersmith <alan.coopersmith@sun.com>2009-10-15 16:37:14 -0700
commit336d4cfb58c784a81beca74fe03a0af0abb224ba (patch)
tree046ee83deda6ce47954d77514a7162e97312029d /Xtranssock.c
parent4f82ca502d8ec33b0038700675d54539d85d723c (diff)
Xtranssock: assume that we have getaddrinfo if ipv6 is enabled
If IPv6 is enabled at build time, assume that the C library will have getaddrinfo at runtime. Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Diffstat (limited to 'Xtranssock.c')
-rw-r--r--Xtranssock.c78
1 files changed, 20 insertions, 58 deletions
diff --git a/Xtranssock.c b/Xtranssock.c
index 0935744..3d45c2b 100644
--- a/Xtranssock.c
+++ b/Xtranssock.c
@@ -229,19 +229,6 @@ static int TRANS(SocketINETClose) (XtransConnInfo ciptr);
#endif
/*
- * This provides compatibility for apps linked against system libraries
- * that don't have IPv6 support.
- */
-#if defined(IPv6) && defined(AF_INET6)
-static const struct in6_addr local_in6addr_any = IN6ADDR_ANY_INIT;
-#pragma weak in6addr_any = local_in6addr_any
-#ifndef __USLC__
-#pragma weak getaddrinfo
-#endif
-static int haveIPv6 = 1;
-#endif
-
-/*
* These are some utility function used by the real interface function below.
*/
@@ -274,25 +261,21 @@ TRANS(SocketINETGetAddr) (XtransConnInfo ciptr)
{
#if defined(IPv6) && defined(AF_INET6)
struct sockaddr_storage socknamev6;
-#endif
+#else
struct sockaddr_in socknamev4;
+#endif
void *socknamePtr;
SOCKLEN_T namelen;
PRMSG (3,"SocketINETGetAddr(%p)\n", ciptr, 0, 0);
#if defined(IPv6) && defined(AF_INET6)
- if (haveIPv6)
- {
- namelen = sizeof(socknamev6);
- socknamePtr = &socknamev6;
- }
- else
+ namelen = sizeof(socknamev6);
+ socknamePtr = &socknamev6;
+#else
+ namelen = sizeof(socknamev4);
+ socknamePtr = &socknamev4;
#endif
- {
- namelen = sizeof(socknamev4);
- socknamePtr = &socknamev4;
- }
bzero(socknamePtr, namelen);
@@ -320,15 +303,10 @@ TRANS(SocketINETGetAddr) (XtransConnInfo ciptr)
}
#if defined(IPv6) && defined(AF_INET6)
- if (haveIPv6)
- {
- ciptr->family = ((struct sockaddr *)socknamePtr)->sa_family;
- }
- else
+ ciptr->family = ((struct sockaddr *)socknamePtr)->sa_family;
+#else
+ ciptr->family = socknamev4.sin_family;
#endif
- {
- ciptr->family = socknamev4.sin_family;
- }
ciptr->addrlen = namelen;
memcpy (ciptr->addr, socknamePtr, ciptr->addrlen);
@@ -353,7 +331,7 @@ TRANS(SocketINETGetPeerAddr) (XtransConnInfo ciptr)
SOCKLEN_T namelen;
#if defined(IPv6) && defined(AF_INET6)
- if (haveIPv6 && ciptr->family == AF_INET6)
+ if (ciptr->family == AF_INET6)
{
namelen = sizeof(socknamev6);
socknamePtr = &socknamev6;
@@ -407,14 +385,6 @@ TRANS(SocketOpen) (int i, int type)
PRMSG (3,"SocketOpen(%d,%d)\n", i, type, 0);
-#if defined(IPv6) && defined(AF_INET6)
- if (getaddrinfo == NULL)
- haveIPv6 = 0;
-
- if (!haveIPv6 && Sockettrans2devtab[i].family == AF_INET6)
- return NULL;
-#endif
-
if ((ciptr = (XtransConnInfo) xcalloc (
1, sizeof(struct _XtransConnInfo))) == NULL)
{
@@ -1483,7 +1453,7 @@ TRANS(SocketINETConnect) (XtransConnInfo ciptr, char *host, char *port)
#endif
#if defined(IPv6) && defined(AF_INET6)
- if (haveIPv6) {
+ {
if (addrlist != NULL) {
if (strcmp(host,addrlist->host) || strcmp(port,addrlist->port)) {
if (addrlist->firstaddr)
@@ -1625,8 +1595,8 @@ TRANS(SocketINETConnect) (XtransConnInfo ciptr, char *host, char *port)
addrlist->addr = addrlist->addr->ai_next;
}
}
- } else
-#endif
+ }
+#else
{
/*
* Build the socket name.
@@ -1700,6 +1670,7 @@ TRANS(SocketINETConnect) (XtransConnInfo ciptr, char *host, char *port)
socketaddr = (struct sockaddr *) &sockname;
socketaddrlen = sizeof(sockname);
}
+#endif
/*
* Turn on socket keepalive so the client process will eventually
@@ -1750,7 +1721,7 @@ TRANS(SocketINETConnect) (XtransConnInfo ciptr, char *host, char *port)
if (olderrno == ECONNREFUSED || olderrno == EINTR
#if defined(IPv6) && defined(AF_INET6)
- || (haveIPv6 && ((addrlist->addr->ai_next != NULL) ||
+ || (((addrlist->addr->ai_next != NULL) ||
(addrlist->addr != addrlist->firstaddr)) &&
(olderrno == ENETUNREACH || olderrno == EAFNOSUPPORT ||
olderrno == EADDRNOTAVAIL || olderrno == ETIMEDOUT
@@ -1796,7 +1767,7 @@ TRANS(SocketINETConnect) (XtransConnInfo ciptr, char *host, char *port)
}
#if defined(IPv6) && defined(AF_INET6)
- if (haveIPv6 && res != 0) {
+ if (res != 0) {
addrlist->addr = addrlist->addr->ai_next;
}
#endif
@@ -1820,20 +1791,13 @@ UnixHostReallyLocal (char *host)
{
char hostnamebuf[256];
-#if defined(IPv6) && defined(AF_INET6)
- if (getaddrinfo == NULL)
- haveIPv6 = 0;
-#endif
-
TRANS(GetHostname) (hostnamebuf, sizeof (hostnamebuf));
if (strcmp (hostnamebuf, host) == 0)
{
return (1);
- }
+ } else {
#if defined(IPv6) && defined(AF_INET6)
- else if (haveIPv6)
- {
struct addrinfo *localhostaddr;
struct addrinfo *otherhostaddr;
struct addrinfo *i, *j;
@@ -1879,10 +1843,7 @@ UnixHostReallyLocal (char *host)
freeaddrinfo(localhostaddr);
freeaddrinfo(otherhostaddr);
return equiv;
- }
-#endif
- else
- {
+#else
/*
* A host may have more than one network address. If any of the
* network addresses of 'host' (specified to the connect call)
@@ -1951,6 +1912,7 @@ UnixHostReallyLocal (char *host)
i++;
}
return (equiv);
+#endif
}
}