From e0f06026a6ee5b85d0ca68e3061b92b98a53eb79 Mon Sep 17 00:00:00 2001
From: doko <doko@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 8 Aug 2007 22:24:40 +0000
Subject: 2007-08-08  Samuel Thibault  <samuel.thibault@ens-lyon.org>

        * java/net/natVMInetAddressPosix.cc
        (java::net::VMInetAddress::getLocalHostname) [!MAXHOSTNAMELEN]:
        Allocate buffer dynamically.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127305 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libjava/java/net/natVMInetAddressPosix.cc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'libjava/java')

diff --git a/libjava/java/net/natVMInetAddressPosix.cc b/libjava/java/net/natVMInetAddressPosix.cc
index 7fbe1bb1ff0..bc25f3654aa 100644
--- a/libjava/java/net/natVMInetAddressPosix.cc
+++ b/libjava/java/net/natVMInetAddressPosix.cc
@@ -47,10 +47,25 @@ java::net::VMInetAddress::getLocalHostname ()
 {
   char *chars;
 #ifdef HAVE_GETHOSTNAME
+#ifdef MAXHOSTNAMELEN
   char buffer[MAXHOSTNAMELEN];
   if (gethostname (buffer, MAXHOSTNAMELEN))
     return NULL;
   chars = buffer;
+#else
+  size_t size = 256;
+  while (1) {
+    char buffer[size];
+    if (!gethostname (buffer, size-1))
+      {
+	buffer[size-1] = 0;
+	return JvNewStringUTF (buffer);
+      }
+    else if (errno != ENAMETOOLONG)
+      return NULL;
+    size *= 2;
+  }
+#endif
 #elif HAVE_UNAME
   struct utsname stuff;
   if (uname (&stuff) != 0)
-- 
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