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Special Forums IP Networking A Basic example of socket programming in C Post 302999398 by yifangt on Monday 19th of June 2017 12:19:01 PM
Old 06-19-2017
I am not using yours as your code sends the three file sequentially, but the required output sends three columns in a row, one at a time. That's why I concatenate three lines into one.
Code:
Connected to server!  
Data returned by the server:  
TEMPERATURE = 60 HUMIDITY = 40 LIGHT = 1  
Data returned by the server:  
TEMPERATURE = 59 HUMIDITY = 50 LIGHT = 2  
Data returned by the server:  
TEMPERATURE = 58 HUMIDITY = 20 LIGHT = 3

Your code sends the files one after another.
If I treat the three items (temperature, light, humidity) as a single intact record, then your output seems different from the sample output format, whereas my way seems to be what is required, except the following problems:
1)The whole dataset is output all at once, instead of individual record (3 numbers in a row);
2)The whole dataset is output in the way of 1) 30 times in total (which is exactly the total record numbers), that's what should be fixed.
Not sure if I missed some of your points. Thanks.
 

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opendkim-genzone(8)					      System Manager's Manual					       opendkim-genzone(8)

NAME
opendkim-genzone - DKIM public key zone file generation tool SYNOPSIS
opendkim-genzone [-C address] [-d domain] [-D] [-E secs] [-N ns[,...]] [-o file] [-r secs] [-R secs] [-S] [-t secs] [-T secs] [-v] [-x conffile] [dataset] DESCRIPTION
opendkim-genzone generates a file suitable for use with named(8) to publish a set of public keys. The dataset parameter should specify a set of data as described in the opendkim(8) man page. It can currently refer to flat files, Sleepy- cat databases, comma-separated lists, LDAP directories or SQL databases. The dataset may be omitted if a configuration file (via the -x command line flag) is specified referring to a configuration file that sets a KeyTable parameter, in which case that value will be used. The database contents should be formatted as described for the KeyTable parameter, described in the opendkim.conf(5) man page. OPTIONS
-C contact Uses contact as the contact information to be used when an SOA record is generated (see -S below). If not specified, the userid of the executing user and the local hostname will be used; if the executing user can't be determined, "hostmaster" will be used. -d domain Restricts output to those records for which the domain field is the specified domain. -D Adds a "._domainkey" suffix to selector names in the zone file. -E secs When generating an SOA record (see -S below), use secs as the default record expiration time. The default is 604800. -N nslist Specifies a comma-separated list of nameservers, which will be output in NS records before the TXT records. The first nameserver in this list will also be used in the SOA record (if -S is also specified) as the authority hostname. -o file Sends output to the named file rather than standard output. -r secs When generating an SOA record (see -S below), use secs as the zone refresh time. The default is 10800. -R secs When generating an SOA record (see -S below), use secs as the zone retry time. The default is 1800. -S Asks for an SOA record to be generated at the top of the output. The content of this output can be controlled using the -E, -r, -R, -T options. The serial number will be generated based on the current time of day. -t ttl Puts a TTL (time-to-live) value of ttl on all records output. The units are in seconds. -T secs When generating an SOA record (see -S below), use secs as the default record TTL time. The default is 86400. -v Increases the verbosity of debugging output written to standard error. -x conffile Names an opendkim.conf(5) file to be read for LDAP-specific parameters when an LDAP dataset is given on the command line. Not required for other dataset types. The default is /etc/opendkim.conf. VERSION
This man page covers the version of opendkim-genzone that shipped with version 2.6.8 of OpenDKIM. COPYRIGHT
Copyright (c) 2010, 2012, The OpenDKIM Project. All rights reserved. SEE ALSO
opendkim(8), opendkim.conf(5) The OpenDKIM Project opendkim-genzone(8)
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