1 /*
2  * Copyright (c) 2001-2018 The strace developers.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef STRACE_STRING_TO_UINT_H
29 #define STRACE_STRING_TO_UINT_H
30 
31 #include <limits.h>
32 
33 #include "kernel_types.h"
34 
35 extern long long
36 string_to_uint_ex(const char *str, char **endptr,
37 		  unsigned long long max_val, const char *accepted_ending);
38 
39 static inline long long
string_to_uint_upto(const char * const str,const unsigned long long max_val)40 string_to_uint_upto(const char *const str, const unsigned long long max_val)
41 {
42 	return string_to_uint_ex(str, NULL, max_val, NULL);
43 }
44 
45 static inline int
string_to_uint(const char * str)46 string_to_uint(const char *str)
47 {
48 	return string_to_uint_upto(str, INT_MAX);
49 }
50 
51 static inline long
string_to_ulong(const char * str)52 string_to_ulong(const char *str)
53 {
54 	return string_to_uint_upto(str, LONG_MAX);
55 }
56 
57 static inline kernel_long_t
string_to_kulong(const char * str)58 string_to_kulong(const char *str)
59 {
60 	return string_to_uint_upto(str, ((kernel_ulong_t) -1ULL) >> 1);
61 }
62 
63 static inline long long
string_to_ulonglong(const char * str)64 string_to_ulonglong(const char *str)
65 {
66 	return string_to_uint_upto(str, LLONG_MAX);
67 }
68 
69 #endif /* !STRACE_STRING_TO_UINT_H */
70