-/* $Id$ */
-
/* rl_dns - name resolution (real life) */
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2005, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "gras/Virtu/virtu_rl.h"
-#include <netdb.h> /* {end,set}hostent() gethostby{addr,name}() */
-#include <unistd.h> /* gethostname */
+#include "portable.h"
/* A portable DNS resolver is a nightmare to do in a portable manner.
keep it simple/stupid for now. */
-const char *gras_os_myname(void) {
- static char *myname = NULL;
-
- if (myname)
- return (const char*) myname;
-
- myname = xbt_new(char, 255);
-
+const char *gras_os_myname(void)
+{
+ static char myname[255];
+ static int initialized = 0;
+
+ if (initialized)
+ return myname;
+
if (gethostname(myname, 255) == -1) {
+#ifdef HAVE_SYS_SOCKET_H
/* gethostname() failed! Trying with localhost instead.
We first need to query the DNS to make sure localhost is resolved
See the note in nws/Portability/dnsutil.c about {end,set}hostent() */
sethostent(0);
tmp = gethostbyname("localhost");
endhostent();
-
+
if (tmp) {
- strncat(myname, tmp->h_name, 255);
- } else {
+ strncpy(myname, tmp->h_name, 255);
+ } else {
/* Erm. localhost cannot be resolved. There's something wrong in the user DNS setting */
sprintf(myname, "(misconfigured host)");
}
+#else
+ sprintf(myname, "(misconfigured windows host)");
+#endif
}
-
+
myname[254] = '\0';
-
+
+ initialized = 1;
return myname;
}
-