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author | Lukas Larsson <[email protected]> | 2013-12-16 16:34:58 +0100 |
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committer | Lukas Larsson <[email protected]> | 2014-02-24 15:16:04 +0100 |
commit | aa80261396941ee63758d6b5965a7e075b79b4ee (patch) | |
tree | 06aa7dcd6218c572762a4c9efbba235df222c726 /erts/etc/common/safe_string.h | |
parent | d6ead9a129fbe5a2df335a00e029a88a1f1849a2 (diff) | |
download | otp-aa80261396941ee63758d6b5965a7e075b79b4ee.tar.gz otp-aa80261396941ee63758d6b5965a7e075b79b4ee.tar.bz2 otp-aa80261396941ee63758d6b5965a7e075b79b4ee.zip |
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.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/erts/etc/common/safe_string.h b/erts/etc/common/safe_string.h new file mode 100644 index 0000000000..ff063fe641 --- /dev/null +++ b/erts/etc/common/safe_string.h @@ -0,0 +1,64 @@ +/* + * %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 |