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#include <assert.h> /* assert */
#include <poll.h> /* poll, pollfd, nfds_t */
#include <stddef.h> /* NULL */
#include <sys/socket.h> /* recv, recvfrom */
/**
* Found in the wild needed by libcef. It looks like glibc moved to a
* pure preprocessor-based solution some time ago, but this remains for
* compatibility.
*/
struct cmsghdr *__cmsg_nxthdr(struct msghdr *msg, struct cmsghdr *cmsg)
{
return CMSG_NXTHDR(msg, cmsg);
}
/**
* Receive a message from a connected socket, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---recv-chk-1.html
*/
ssize_t __recv_chk(int fd, void *buf, size_t len, size_t buflen, int flags)
{
assert(buf != NULL);
assert(buflen >= len);
return recv(fd, buf, len, flags);
}
/**
* Receive a message from a socket, with buffer overflow checking.
*
* LSB 5.0: LSB-Core-generic/baselib---recvfrom-chk-1.html
*/
ssize_t __recvfrom_chk(int fd, void *buf, size_t len, size_t buflen, int flags,
struct sockaddr *address, socklen_t *address_len)
{
assert(buf != NULL);
assert(buflen >= len);
assert(address != NULL ? address_len != NULL : address_len == NULL);
return recvfrom(fd, buf, len, flags, address, address_len);
}
/**
* Checked version of poll, not in LSB but found in the wild.
*
* This checks if the size of fds is large enough to hold all the fd's claimed
* in nfds.
*/
int __poll_chk(struct pollfd *fds, nfds_t nfds, int timeout, size_t fdslen)
{
assert((fdslen / sizeof(*fds)) >= nfds);
return poll(fds, nfds, timeout);
}
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