* For iov_send_recv() _whole_ area being sent or received
* should be within the iovec, not only beginning of it.
*/
-ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt,
+ssize_t iov_send_recv(int sockfd, const struct iovec *iov, unsigned iov_cnt,
size_t offset, size_t bytes, bool do_send);
#define iov_recv(sockfd, iov, iov_cnt, offset, bytes) \
iov_send_recv(sockfd, iov, iov_cnt, offset, bytes, false)
#endif
}
-ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt,
+ssize_t iov_send_recv(int sockfd, const struct iovec *_iov, unsigned iov_cnt,
size_t offset, size_t bytes,
bool do_send)
{
ssize_t ret;
size_t orig_len, tail;
unsigned niov;
+ struct iovec *local_iov, *iov;
+
+ if (bytes <= 0) {
+ return 0;
+ }
+
+ local_iov = g_new0(struct iovec, iov_cnt);
+ iov_copy(local_iov, iov_cnt, _iov, iov_cnt, offset, bytes);
+ offset = 0;
+ iov = local_iov;
while (bytes > 0) {
/* Find the start position, skipping `offset' bytes:
if (ret < 0) {
assert(errno != EINTR);
+ g_free(local_iov);
if (errno == EAGAIN && total > 0) {
return total;
}
bytes -= ret;
}
+ g_free(local_iov);
return total;
}