File: safe_string.h

package info (click to toggle)
erlang 1%3A28.0.2%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 234,540 kB
  • sloc: erlang: 1,681,194; ansic: 436,017; cpp: 178,134; xml: 82,160; makefile: 15,053; sh: 14,564; lisp: 9,850; java: 8,603; asm: 6,829; perl: 5,874; python: 5,482; sed: 72
file content (63 lines) | stat: -rw-r--r-- 1,804 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
/*
 * %CopyrightBegin%
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Copyright Ericsson AB 2008-2025. 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);