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Full Discussion: A Basic example of socket programming in C
Special Forums IP Networking A Basic example of socket programming in C Post 302999394 by Corona688 on Monday 19th of June 2017 11:03:06 AM
Old 06-19-2017
It sends humidity, temperature, and light as one line because you read from all three:

Code:
 while ((fgets(line1, MAXLINE, pF_temperature) != NULL) &&
        (fgets(line2, MAXLINE, pF_light) != NULL) &&
        (fgets(line3, MAXLINE, pF_humidity) != NULL))

...then remove newlines from all three:
Code:
    line1[strcspn(line1, "\r\n")] = 0;        //remove newline
    line2[strcspn(line2, "\r\n")] = 0;        //remove newline
    line3[strcspn(line3, "\r\n")] = 0;        //remove newline

...then concatenate all three with labels and tabs inbetween:

Code:
    strcat(sendline, "TEMPERATURE = ");
    strcat(sendline, line1);

    strcat(sendline, "\tLIGHT = ");
    strcat(sendline, line2);

    strcat(sendline, "\tHUMIDITY = ");
    strcat(sendline, line3);

Then send all three:

Code:
send(sockfd, sendline, strlen(sendline), 0);

You are not using my code at all.
Last edited by Corona688; 06-19-2017 at 12:13 PM..
 

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LEARN ABOUT DEBIAN

upstart-socket-bridge

upstart-socket-bridge(8)				      System Manager's Manual					  upstart-socket-bridge(8)

NAME

       upstart-socket-bridge - Bridge between Upstart and sockets

SYNOPSIS

       upstart-socket-bridge [OPTIONS]...

DESCRIPTION

       The upstart-socket-bridge queries the Upstart init(8) daemon for all job configurations which start on or stop on the socket event. It then
       waits for an incoming connection on each specified socket(7) and when detected emits the socket event (socket-event (7)), setting a  number
       of environment variables for the job to query.

AUTHOR

       Written by Scott James Remnant <scott@netsplit.com>

       Manual page written by James Hunt <james.hunt@ubuntu.com>

BUGS

       Report bugs at <https://launchpad.net/upstart/+bugs>

COPYRIGHT

       Copyright (C) 2011 Canonical Ltd.

       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       init(5) init(8) socket(2) socket(7) socket-event(7)

upstart 							    2011-03-08						  upstart-socket-bridge(8)
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