On 01/08/2016 10:02 PM, Heinrich Schuchardt wrote: > Describe the recv.2-read.2 and the recvfrom.2-recv.2 equivalences for > zero valued arguments. Thanks, Heinrich. Applied. Cheers, Michael > Signed-off-by: Heinrich Schuchardt <xypron.glpk@xxxxxx> > --- > man2/recv.2 | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/man2/recv.2 b/man2/recv.2 > index a789256..1bdeb7a 100644 > --- a/man2/recv.2 > +++ b/man2/recv.2 > @@ -68,6 +68,26 @@ to receive data on both connectionless and connection-oriented sockets. > This page first describes common features of all three system calls, > and then describes the differences between the calls. > .PP > +The only difference between > +.BR recv () > +and > +.BR read (2) > +is the presence of > +.IR flags . > +With a zero > +.I flags > +argument, > +.BR recv () > +is equivalent to > +.BR read (2). > +Also, the following call > + > + recv(sockfd, buf, len, flags); > + > +is equivalent to > + > + recvfrom(sockfd, buf, len, flags, NULL, NULL); > +.PP > All three calls return the length of the message on successful > completion. > If a message is too long to fit in the supplied buffer, excess > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
