X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Ftoolbox%2Futil.c;h=4adb970f5f00d0c0ffa97d1a37f8d8a6a13eedb0;hb=b307ed446ce8893052cd4774fcb2298cf4d7a4db;hp=18dc97711d771766a0db0dc78f214008968ec52b;hpb=b1dfff49f1988d04767d9de747ff1addc1023c43;p=cacao.git

diff --git a/src/toolbox/util.c b/src/toolbox/util.c
index 18dc97711..4adb970f5 100644
--- a/src/toolbox/util.c
+++ b/src/toolbox/util.c
@@ -1,9 +1,7 @@
 /* src/toolbox/util.c - contains some utility functions
 
-   Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
-   R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
-   C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
-   Institut f. Computersprachen - TU Wien
+   Copyright (C) 1996-2005, 2006, 2008
+   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
 
    This file is part of CACAO.
 
@@ -19,33 +17,32 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.
-
-   Contact: cacao@complang.tuwien.ac.at
-
-   Authors: Christian Thalinger
-
-   Changes:
-
-   $Id: util.c 2463 2005-05-12 23:54:07Z twisti $
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
 
 */
 
 
+#include "config.h"
+
+#include <assert.h>
 #include <errno.h>
 #include <stdarg.h>
 #include <unistd.h>
 
-#include "types.h"
-#include "mm/memory.h"
-#include "vm/exceptions.h"
-#include "vm/stringlocal.h"
+#include "vm/types.h"
 
+#include "mm/memory.hpp"
+#include "vm/vm.hpp"
 
-/* getcwd **********************************************************************
 
-   XXX
+/* _Jv_getcwd ******************************************************************
+
+   Return the current working directory.
+
+   RETURN VALUE:
+       pointer to a char array allocated by MNEW, or
+	   NULL if memory could not be allocated.
 
 *******************************************************************************/
 
@@ -67,8 +64,7 @@ char *_Jv_getcwd(void)
 		/* too small buffer or a more serious problem */
 
 		if (errno != ERANGE)
-			throw_cacao_exception_exit(string_java_lang_InternalError,
-									   strerror(errno));
+			vm_abort("getcwd failed: %s", strerror(errno));
 
 		/* double the buffer size */
 
@@ -88,16 +84,45 @@ char *_Jv_getcwd(void)
 
 *******************************************************************************/
 
-int get_variable_message_length(const char *fmt, ...)
+int get_variable_message_length(const char *fmt, va_list ap)
 {
-	va_list ap;
-	int     len;
+	int n;
+
+	n = vsnprintf(NULL, 0, fmt, ap);
+
+#if defined(__IRIX__)
+	/* We know that IRIX returns -1 if the buffer is NULL */
 
-	va_start(ap, fmt);
-	len = vsnprintf(NULL, 0, fmt, ap);
-	va_end(ap);
+	if (n == -1) {
+		char *p, *np;
+		s4    size;
+
+		size = 100;                     /* start with 100-bytes               */
+
+		p = MNEW(char, size);
+
+		while (1) {
+			/* Try to print in the allocated space. */
+
+			n = vsnprintf(p, size, fmt, ap);
+
+			/* If that worked, return the length. */
+			if (n > -1 && n < size)
+				return n;
+
+			/* Else try again with more space. */
+			size *= 2;  /* twice the old size */
+
+			if ((np = MREALLOC(p, char, size, size)) == NULL) {
+				assert(0);
+			} else {
+				p = np;
+			}
+		}
+	}
+#endif
 
-	return len;
+	return n;
 }