libfdt/libfdt_env.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+)
Prior the Mac OS 10.7, the function strnlen() was not available. This patch
implements strnlen() on Mac OS X versions that are below 10.7.
Signed-off-by: John Arbuckle <programmingkidx@gmail.com>
---
v4 changes:
- Added check for definition of MAC_OS_X_VERSION_10_7
- Renamed strnlen to fdt_strnlen
- Added macro that defines strnlen as fdt_strnlen
v3 changes:
- Replaced loop with memchr()
v2 changes:
- Simplified the code to make it static inline'ed
- Changed the type of count to size_t
libfdt/libfdt_env.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/libfdt/libfdt_env.h b/libfdt/libfdt_env.h
index 952056c..41fac04 100644
--- a/libfdt/libfdt_env.h
+++ b/libfdt/libfdt_env.h
@@ -109,4 +109,31 @@ static inline fdt64_t cpu_to_fdt64(uint64_t x)
#undef CPU_TO_FDT16
#undef EXTRACT_BYTE
+#ifdef __APPLE__
+#include <AvailabilityMacros.h>
+
+/* strnlen() is not available on Mac OS < 10.7 */
+# if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < \
+ MAC_OS_X_VERSION_10_7)
+
+#define strnlen fdt_strnlen
+
+/*
+ * fdt_strnlen: returns the length of a string or max_count - which ever is
+ * smallest.
+ * Input 1 string: the string whose size is to be determined
+ * Input 2 max_count: the maximum value returned by this function
+ * Output: length of the string or max_count (the smallest of the two)
+ */
+static inline size_t fdt_strnlen(const char *string, size_t max_count)
+{
+ const char *p = memchr(string, 0, max_count);
+ return p ? p - string : max_count;
+}
+
+#endif /* !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED <
+ MAC_OS_X_VERSION_10_7) */
+
+#endif /* __APPLE__ */
+
#endif /* _LIBFDT_ENV_H */
--
2.10.2
On Wed, Oct 25, 2017 at 09:13:46PM -0400, John Arbuckle wrote: > Prior the Mac OS 10.7, the function strnlen() was not available. This patch > implements strnlen() on Mac OS X versions that are below 10.7. > > Signed-off-by: John Arbuckle <programmingkidx@gmail.com> Applied, thanks. > --- > v4 changes: > - Added check for definition of MAC_OS_X_VERSION_10_7 > - Renamed strnlen to fdt_strnlen > - Added macro that defines strnlen as fdt_strnlen > > v3 changes: > - Replaced loop with memchr() > > v2 changes: > - Simplified the code to make it static inline'ed > - Changed the type of count to size_t > > libfdt/libfdt_env.h | 27 +++++++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > > diff --git a/libfdt/libfdt_env.h b/libfdt/libfdt_env.h > index 952056c..41fac04 100644 > --- a/libfdt/libfdt_env.h > +++ b/libfdt/libfdt_env.h > @@ -109,4 +109,31 @@ static inline fdt64_t cpu_to_fdt64(uint64_t x) > #undef CPU_TO_FDT16 > #undef EXTRACT_BYTE > > +#ifdef __APPLE__ > +#include <AvailabilityMacros.h> > + > +/* strnlen() is not available on Mac OS < 10.7 */ > +# if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < \ > + MAC_OS_X_VERSION_10_7) > + > +#define strnlen fdt_strnlen > + > +/* > + * fdt_strnlen: returns the length of a string or max_count - which ever is > + * smallest. > + * Input 1 string: the string whose size is to be determined > + * Input 2 max_count: the maximum value returned by this function > + * Output: length of the string or max_count (the smallest of the two) > + */ > +static inline size_t fdt_strnlen(const char *string, size_t max_count) > +{ > + const char *p = memchr(string, 0, max_count); > + return p ? p - string : max_count; > +} > + > +#endif /* !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < > + MAC_OS_X_VERSION_10_7) */ > + > +#endif /* __APPLE__ */ > + > #endif /* _LIBFDT_ENV_H */ -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
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