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fix bugs for optlen output on size not big enough for timeout events

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Minun Dragonation 2019-05-05 21:46:34 +08:00
parent 82252440de
commit 4a94ce6326
1 changed files with 10 additions and 5 deletions
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15
sockcompat.c
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@ -191,11 +191,16 @@ int win32_connect(SOCKET sockfd, const struct sockaddr *addr, socklen_t addrlen)
int win32_getsockopt(SOCKET sockfd, int level, int optname, void *optval, socklen_t *optlen) {
int ret = 0;
if ((level == SOL_SOCKET) && ((optname == SO_RCVTIMEO) || (optname == SO_SNDTIMEO))) {
struct timeval *tv = (struct timeval *)optval;
DWORD timeout = 0; socklen_t dwlen = 0;
ret = getsockopt(sockfd, level, optname, (char *)&timeout, &dwlen);
tv->tv_sec = timeout / 1000;
tv->tv_usec = timeout * 1000;
if (*optlen >= sizeof (struct timeval)) {
struct timeval *tv = (struct timeval *)optval;
DWORD timeout = 0;
socklen_t dwlen = 0;
ret = getsockopt(sockfd, level, optname, (char *)&timeout, &dwlen);
tv->tv_sec = timeout / 1000;
tv->tv_usec = timeout * 1000;
} else {
ret = WSAEFAULT;
}
*optlen = sizeof (struct timeval);
} else {
ret = getsockopt(sockfd, level, optname, (char*)optval, optlen);