diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/birdlib.h | 10 | ||||
| -rw-r--r-- | lib/ip.h | 2 | ||||
| -rw-r--r-- | lib/net.h | 4 | ||||
| -rw-r--r-- | lib/string.h | 6 |
4 files changed, 16 insertions, 6 deletions
diff --git a/lib/birdlib.h b/lib/birdlib.h index fac7e4ea..a520fdb3 100644 --- a/lib/birdlib.h +++ b/lib/birdlib.h @@ -78,6 +78,16 @@ static inline int u64_cmp(u64 i1, u64 i2) #define NONNULL(...) __attribute__((nonnull(__VA_ARGS__))) #define ALLOC_SIZE(...) __attribute__((alloc_size(__VA_ARGS__))) +#if __GNUC_PREREQ(10, 0) +#define ACCESS_READ(...) __attribute__((access(read_only, __VA_ARGS__))) +#define ACCESS_WRITE(...) __attribute__((access(write_only, __VA_ARGS__))) +#define ACCESS_RW(...) __attribute__((access(read_write, __VA_ARGS__))) +#else +#define ACCESS_READ(...) +#define ACCESS_WRITE(...) +#define ACCESS_RW(...) +#endif + #define STATIC_ASSERT(EXP) _Static_assert(EXP, #EXP) #define STATIC_ASSERT_MSG(EXP,MSG) _Static_assert(EXP, MSG) @@ -398,7 +398,7 @@ typedef struct mpls_label_stack { u32 stack[MPLS_MAX_LABEL_STACK]; } mpls_label_stack; -static inline int +static inline int ACCESS_READ(1, 2) mpls_get(const char *buf, int buflen, u32 *stack) { for (int i=0; (i<MPLS_MAX_LABEL_STACK) && (i*4+3 < buflen); i++) @@ -639,8 +639,8 @@ void net_normalize(net_addr *N); int net_classify(const net_addr *N); -int net_format(const net_addr *N, char *buf, int buflen); -int rd_format(const u64 rd, char *buf, int buflen); +int net_format(const net_addr *N, char *buf, int buflen) ACCESS_WRITE(2, 3); +int rd_format(const u64 rd, char *buf, int buflen) ACCESS_WRITE(2, 3); static inline int ipa_in_px4(ip4_addr a, ip4_addr prefix, uint pxlen) { return ip4_zero(ip4_and(ip4_xor(a, prefix), ip4_mkmask(pxlen))); } diff --git a/lib/string.h b/lib/string.h index 161b7651..0c21f513 100644 --- a/lib/string.h +++ b/lib/string.h @@ -17,8 +17,8 @@ int bsprintf(char *str, const char *fmt, ...); int bvsprintf(char *str, const char *fmt, va_list args); -int bsnprintf(char *str, int size, const char *fmt, ...); -int bvsnprintf(char *str, int size, const char *fmt, va_list args); +int bsnprintf(char *str, int size, const char *fmt, ...) ACCESS_WRITE(1, 2); +int bvsnprintf(char *str, int size, const char *fmt, va_list args) ACCESS_WRITE(1, 2); char *mb_sprintf(pool *p, const char *fmt, ...); char *mb_vsprintf(pool *p, const char *fmt, va_list args); @@ -34,7 +34,7 @@ u64 bstrtoul16(const char *str, char **end); byte bstrtobyte16(const char *str); int bstrhextobin(const char *s, byte *b); -int bstrbintohex(const byte *b, size_t len, char *buf, size_t size, char delim); +int bstrbintohex(const byte *b, size_t len, char *buf, size_t size, char delim) ACCESS_READ(1, 2) ACCESS_WRITE(3, 4); int patmatch(const byte *pat, const byte *str); |