9f8c543dc8
Overriding functions with macros is legal in C but a lot of software is not prepared for it. Use the extern inline method to achieve the same result.
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
#ifndef _FORTIFY_SYS_SOCKET_H
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#define _FORTIFY_SYS_SOCKET_H
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#include_next <sys/socket.h>
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#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
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#ifndef __cplusplus
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#undef recv
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#undef recvfrom
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#undef send
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#undef sendto
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extern ssize_t __recv_orig(int, void *, size_t, int)
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__asm__(__USER_LABEL_PREFIX__ "recv");
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extern __inline __attribute__((__always_inline__,__gnu_inline__))
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ssize_t recv(int sockfd, void *buf, size_t n, int flags)
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{
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size_t bos = __builtin_object_size(buf, 0);
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if (n > bos)
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__builtin_trap();
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return __recv_orig(sockfd, buf, n, flags);
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}
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extern ssize_t __recvfrom_orig(int, void *, size_t, int, struct sockaddr *, socklen_t *)
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__asm__(__USER_LABEL_PREFIX__ "recvfrom");
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extern __inline __attribute__((__always_inline__,__gnu_inline__))
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ssize_t recvfrom(int sockfd, void *buf, size_t n, int flags,
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struct sockaddr *sa, socklen_t *salen)
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{
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size_t bos = __builtin_object_size(buf, 0);
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if (n > bos)
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__builtin_trap();
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return __recvfrom_orig(sockfd, buf, n, flags, sa, salen);
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}
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extern ssize_t __send_orig(int, const void *, size_t, int)
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__asm__(__USER_LABEL_PREFIX__ "send");
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extern __inline __attribute__((__always_inline__,__gnu_inline__))
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ssize_t send(int sockfd, const void *buf, size_t n, int flags)
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{
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size_t bos = __builtin_object_size(buf, 0);
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if (n > bos)
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__builtin_trap();
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return __send_orig(sockfd, buf, n, flags);
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}
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extern ssize_t __sendto_orig(int, const void *, size_t, int, const struct sockaddr *, socklen_t)
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__asm__(__USER_LABEL_PREFIX__ "sendto");
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extern __inline __attribute__((__always_inline__,__gnu_inline__))
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ssize_t sendto(int sockfd, const void *buf, size_t n, int flags,
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const struct sockaddr *sa, socklen_t salen)
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{
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size_t bos = __builtin_object_size(buf, 0);
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if (n > bos)
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__builtin_trap();
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return __sendto_orig(sockfd, buf, n, flags, sa, salen);
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}
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#endif
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#endif
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#endif
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