1 files changed, 70 insertions, 0 deletions
diff --git a/common/eurephia_nullsafe.c b/common/eurephia_nullsafe.c
new file mode 100644
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+++ b/common/eurephia_nullsafe.c
@@ -0,0 +1,70 @@
+/* eurephia_nullsafe.c
+ *
+ *  standard C string functions, which is made NULL safe by checking
+ *  if input value is NULL before performing the action.
+ *
+ *  GPLv2 only - Copyright (C) 2009
+ *               David Sommerseth <dazo@users.sourceforge.net>
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; version 2
+ *  of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+/**
+ * @file   eurephia_nullsafe.c
+ * @author David Sommerseth <dazo@users.sourceforge.net>
+ * @date   2009-09-07
+ *
+ * @brief standard C string functions, which is made NULL safe by checking
+ *        if input value is NULL before performing the action.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <eurephia_context.h>
+#include <eurephia_log.h>
+
+/**
+ * Internal function, called via the malloc_nullsafe() macro.
+ *
+ * @param ctx   eurephiaCTX, used for logging
+ * @param sz    size of the memory region being allocated
+ * @param file  debug info, which file is doing this call
+ * @param line  debug info, which line in the file
+ *
+ * @return Returns a void pointer to the memory region on success, otherwise NULL
+ */
+void *__malloc_nullsafe(eurephiaCTX *ctx, size_t sz, const char *file, int line) {
+        void *buf = NULL;
+
+        buf = calloc(1, sz);    /* Using calloc, also gives a zero'd memory region */
+        if( !buf ) {
+                if( ctx ) {
+                        eurephia_log(ctx, LOG_FATAL, 40,
+                                     "Could not allocate memory region for %ld bytes (File %s, line %i)",
+                                     sz, file, line);
+                } else {
+                        fprintf(stderr, "** FATAL ERROR ** "
+                                     "Could not allocate memory region for %ld bytes (File %s, line %i)",
+                                     sz, file, line);
+                }
+        } else {
+                DEBUG(ctx, 40, "Allocated %ld bytes of memory on address %p (File %s, line %i)",
+                      sz, buf, file, line);
+        }
+        return buf;
+}