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Add send() check

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sin 2015-02-24 19:37:25 +00:00
parent eb7c60712c
commit d8afaf63d2
1 changed files with 13 additions and 0 deletions
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13
include/sys/socket.h
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@ -27,10 +27,23 @@ __fortify_recvfrom(int sockfd, void *buf, size_t n, int flags, struct sockaddr *
return recvfrom(sockfd, buf, n, flags, sa, salen);
}
static inline __attribute__ ((always_inline))
ssize_t
__fortify_send(int sockfd, const void *buf, size_t n, int flags)
{
size_t bos = __builtin_object_size(buf, 0);
if (n > bos)
__builtin_trap();
return send(sockfd, buf, n, flags);
}
#undef recv
#define recv(sockfd, buf, n, flags) __fortify_recv(sockfd, buf, n, flags)
#undef recvfrom
#define recvfrom(sockfd, buf, n, flags, sa, salen) __fortify_recvfrom(sockfd, buf, n, flags, sa, salen)
#undef send
#define send(sockfd, buf, n, flags) __fortify_send(sockfd, buf, n, flags)
#endif