2 * Copyright (C) 2015 Michael Jeanson <mjeanson@efficios.com>
3 * 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #ifndef _COMPAT_STRING_H
25 #define _COMPAT_STRING_H
31 size_t lttng_strnlen(const char *str
, size_t max
)
33 return strnlen(str
, max
);
37 size_t lttng_strnlen(const char *str
, size_t max
)
42 end
= memchr(str
, 0, max
);
45 ret
= (size_t) (end
- str
);
52 #endif /* HAVE_STRNLEN */
56 char *lttng_strndup(const char *s
, size_t n
)
62 char *lttng_strndup(const char *s
, size_t n
)
73 navail
= strlen(s
) + 1;
74 if ((n
+ 1) < navail
) {
83 memcpy(ret
, s
, navail
);
84 ret
[navail
- 1] = '\0';
88 #endif /* HAVE_STRNDUP */
91 static inline int lttng_fls(int val
)
96 static inline int lttng_fls(int val
)
99 unsigned int x
= (unsigned int) val
;
103 if (!(x
& 0xFFFF0000U
)) {
107 if (!(x
& 0xFF000000U
)) {
111 if (!(x
& 0xF0000000U
)) {
115 if (!(x
& 0xC0000000U
)) {
119 if (!(x
& 0x80000000U
)) {
124 #endif /* HAVE_FLS */
126 #endif /* _COMPAT_STRING_H */
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