unix_recv (FUN)ΒΆ

FUNCTION unix_recv : INT

receive a message from a unix domain socket see manpage recv

Returnvalue: returns the number of bytes received, or -1 if an error occurred. In the event of an error, errno is set to indicate the error.

Internally, this function calls recv(), which returns of type ssize_t. This might be different to the return value of the IEC function unix_recv, which is INT. Calling with length >= INT Max can lead to invalid return values of this function.

InOut:

Scope

Name

Type

Return

unix_recv

INT

Input

sockfd

INT

buf

POINTER TO BYTE

len

ULINT

flags

INT