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authorLukas Larsson <[email protected]>2013-12-16 16:34:58 +0100
committerLukas Larsson <[email protected]>2014-02-24 15:16:04 +0100
commitaa80261396941ee63758d6b5965a7e075b79b4ee (patch)
tree06aa7dcd6218c572762a4c9efbba235df222c726 /erts/etc/common/safe_string.h
parentd6ead9a129fbe5a2df335a00e029a88a1f1849a2 (diff)
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erts: Refactor common parts out of run_erl and to_erl
This is in preperation for writing ose version of run_erl and to_erl
Diffstat (limited to 'erts/etc/common/safe_string.h')
-rw-r--r--erts/etc/common/safe_string.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/erts/etc/common/safe_string.h b/erts/etc/common/safe_string.h
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+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2008-2009. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights 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