bnet_recv

To read a packet, one uses the subroutine:

int bnet_recv(BSOCK *sock) This routine is similar to a read() except that it handles the low level details. bnet_read() first reads packet length that follows as four bytes in network byte order. The data is read into sock->msg and is sock->msglen bytes. If the sock->msg is not large enough, bnet_recv() realloc() the buffer. It will return an error (-2) if maxbytes is less than the record size sent. It returns:

* Returns number of bytes read
* Returns 0 on end of file
* Returns -1 on hard end of file (i.e. network connection close)
* Returns -2 on error

It should be noted that bnet_recv() is a blocking read.

See also

• bnet and Threads

• bnet_open

• bnet_send

• bnet_fsend

• Additional Error Information

• bnet_sig

• bnet_strerror

• bnet_close

• Becoming a Server

• Higher Level Conventions

Possible Next Steps

Go to Smart Memory Allocation.

Go back to TCP/IP Network Protocol.

Go back to Developer Guide.