1 files changed, 66 insertions, 0 deletions
diff --git a/erts/etc/unix/safe_string.h b/erts/etc/unix/safe_string.h
new file mode 100644
index 0000000000..cafd3fc71a
--- /dev/null
+++ b/erts/etc/unix/safe_string.h
@@ -0,0 +1,66 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2008-2016. All Rights Reserved.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * %CopyrightEnd%
+ */
+/* 
+ * Module: safe_string.h
+ * 
+ * This is an interface to a bunch of generic string operation
+ * that are safe regarding buffer overflow.
+ *
+ * All string functions terminate the process with an error message
+ * on buffer overflow.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+/* Like vsnprintf()
+ */
+int vsn_printf(char* dst, size_t size, const char* format, va_list args);
+
+/* Like snprintf()
+ */
+int sn_printf(char* dst, size_t size, const char* format, ...);
+
+/* Like strncpy()
+ * Returns length of copied string.
+ */
+int strn_cpy(char* dst, size_t size, const char* src);
+
+/* Almost like strncat()
+ * size is sizeof entire dst buffer.
+ * Returns length of resulting string.
+ */
+int strn_cat(char* dst, size_t size, const char* src);
+
+/* Combination of strncat() and snprintf()
+ * size is sizeof entire dst buffer.
+ * Returns length of resulting string.
+ */
+int strn_catf(char* dst, size_t size, const char* format, ...);
+
+/* Simular to strstr() but search size bytes of haystack
+ * without regard to '\0' characters.
+ */
+char* find_str(const char* haystack, int size, const char* needle);
+
+#ifndef HAVE_MEMMOVE
+void* memmove(void *dest, const void *src, size_t n);
+#endif
+