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Fixed bug #51195 (Calling inet_pton() causes buffer overrun on a struct in6_addr)

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This commit is contained in:
goldsimon
2017-06-14 22:21:55 +02:00
parent 5a27e97baf
commit 82b9f86b45
2 changed files with 67 additions and 21 deletions
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29
src/include/lwip/sockets.h
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@@ -509,6 +509,8 @@ void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destro
#define lwip_socket socket
#define lwip_select select
#define lwip_ioctlsocket ioctl
#define lwip_inet_ntop inet_ntop
#define lwip_inet_pton inet_pton
#if LWIP_POSIX_SOCKETS_IO_NAMES
#define lwip_read read
@@ -550,6 +552,8 @@ int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptse
#endif
int lwip_ioctl(int s, long cmd, void *argp);
int lwip_fcntl(int s, int cmd, int val);
const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size);
int lwip_inet_pton(int af, const char *src, void *dst);
#if LWIP_COMPAT_SOCKETS
#if LWIP_COMPAT_SOCKETS != 2
@@ -591,6 +595,10 @@ int lwip_fcntl(int s, int cmd, int val);
#define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout)
/** @ingroup socket */
#define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp)
/** @ingroup socket */
#define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size)
/** @ingroup socket */
#define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst)
#if LWIP_POSIX_SOCKETS_IO_NAMES
/** @ingroup socket */
@@ -608,27 +616,6 @@ int lwip_fcntl(int s, int cmd, int val);
#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
#endif /* LWIP_COMPAT_SOCKETS != 2 */
#if LWIP_IPV4 && LWIP_IPV6
/** @ingroup socket */
#define inet_ntop(af,src,dst,size) \
(((af) == AF_INET6) ? ip6addr_ntoa_r((const ip6_addr_t*)(src),(dst),(size)) \
: (((af) == AF_INET) ? ip4addr_ntoa_r((const ip4_addr_t*)(src),(dst),(size)) : NULL))
/** @ingroup socket */
#define inet_pton(af,src,dst) \
(((af) == AF_INET6) ? ip6addr_aton((src),(ip6_addr_t*)(dst)) \
: (((af) == AF_INET) ? ip4addr_aton((src),(ip4_addr_t*)(dst)) : 0))
#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */
#define inet_ntop(af,src,dst,size) \
(((af) == AF_INET) ? ip4addr_ntoa_r((const ip4_addr_t*)(src),(dst),(size)) : NULL)
#define inet_pton(af,src,dst) \
(((af) == AF_INET) ? ip4addr_aton((src),(ip4_addr_t*)(dst)) : 0)
#else /* LWIP_IPV4 && LWIP_IPV6 */
#define inet_ntop(af,src,dst,size) \
(((af) == AF_INET6) ? ip6addr_ntoa_r((const ip6_addr_t*)(src),(dst),(size)) : NULL)
#define inet_pton(af,src,dst) \
(((af) == AF_INET6) ? ip6addr_aton((src),(ip6_addr_t*)(dst)) : 0)
#endif /* LWIP_IPV4 && LWIP_IPV6 */
#endif /* LWIP_COMPAT_SOCKETS */
#ifdef __cplusplus