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Merge "property_get: do argument checking."

This commit is contained in:
Nick Kralevich 2013-02-01 23:18:38 +00:00 committed by Android (Google) Code Review
parent ef89911ed6 75cc88546b
commit cc62beebff
1 changed files with 20 additions and 0 deletions
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20
include/cutils/properties.h
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@ -17,6 +17,9 @@
#ifndef __CUTILS_PROPERTIES_H
#define __CUTILS_PROPERTIES_H
#include <sys/cdefs.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
@ -62,6 +65,23 @@ enum {
};
#endif /*HAVE_SYSTEM_PROPERTY_SERVER*/
#ifdef __BIONIC_FORTIFY_INLINE
extern int __property_get_real(const char *, char *, const char *)
__asm__(__USER_LABEL_PREFIX__ "property_get");
extern void __property_get_too_small_error()
__attribute__((__error__("property_get() called with too small of a buffer")));
__BIONIC_FORTIFY_INLINE
int property_get(const char *key, char *value, const char *default_value) {
size_t bos = __builtin_object_size(value, 0);
if (bos < PROPERTY_VALUE_MAX) {
__property_get_too_small_error();
}
return __property_get_real(key, value, default_value);
}
#endif /* __BIONIC_FORTIFY_INLINE */
#ifdef __cplusplus
}