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Full Discussion: size of char array in c
Top Forums Programming size of char array in c Post 302142192 by Hitori on Thursday 25th of October 2007 03:04:55 AM
Old 10-25-2007
Quote:
Originally Posted by phani_sree
thank u,
ok but we don't know the value of num_of_bytes value?
actually iam reading from webpage using curl socket.i don't know how much data it amy come.
so please show me the solution
If you read from socket HTTP/1.1 response then you can determine the size of the data from Content-Length header. But be aware of chunked responses, i.e.


Code:
HTTP/1.1 200 OK
Date: Fri, 31 Dec 1999 23:59:59 GMT
Content-Type: text/plain
Transfer-Encoding: chunked

1a; ignore-stuff-here
abcdefghijklmnopqrstuvwxyz
10
1234567890abcdef
0
some-footer: some-value
another-footer: another-value
[blank line here]

what corresponds to

Code:
HTTP/1.1 200 OK
Date: Fri, 31 Dec 1999 23:59:59 GMT
Content-Type: text/plain
Content-Length: 42
some-footer: some-value
another-footer: another-value

abcdefghijklmnopqrstuvwxyz1234567890abcdef


see RFC 2616
 

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LEARN ABOUT DEBIAN

ipptool

ipptool(1)							    Apple Inc.								ipptool(1)

NAME

       ipptool - perform internet printing protocol requests

SYNOPSIS

       ipptool [ -4 ] [ -6 ] [ -C ] [ -E ] [ -I ] [ -L ] [ -S ] [ -T seconds ] [ -V version ] [ -X ] [ -c ] [ -d name=value ] [ -f filename ] [ -i
       seconds ] [ -n repeat-count ] [ -q ] [ -t ] [ -v ] URI filename [ ... filenameN ]

DESCRIPTION

       ipptool sends IPP requests to the specified URI and tests and/or displays the results. Each  named  file  defines  one  or  more  requests,
       including  the  expected  response status, attributes, and values. Output is either a plain text, formatted text, CSV, or XML report on the
       standard output, with a non-zero exit status indicating that one or more tests have failed. The file format is described in ipptoolfile(5).

OPTIONS

       The following options are recognized by ipptool:

       -4   Specifies that ipptool must connect to the printer or server using IPv4.

       -6   Specifies that ipptool must connect to the printer or server using IPv6.

       -C   Specifies that requests should be sent using the HTTP/1.1 "Transfer-Encoding: chunked" header, which is required  for  conformance	by
	    all  versions  of  IPP.  The default is to use "Transfer-Encoding: chunked" for requests with attached files and "Content-Length:" for
	    requests without attached files.

       -E   Forces TLS encryption when connecting to the server using the HTTP "Upgrade" header.

       -I   Specifies that ipptool will continue past errors.

       -L   Specifies that requests should be sent using the HTTP/1.0 "Content-Length:" header, which is required for conformance by all  versions
	    of IPP. The default is to use "Transfer-Encoding: chunked" for requests with attached files and "Content-Length:" for requests without
	    attached files.

       -S   Forces (dedicated) SSL encryption when connecting to the server.

       -T seconds
	    Specifies a timeout for IPP requests in seconds.

       -V version
	    Specifies the default IPP version to use: 1.0, 1.1, 2.0, 2.1, or 2.2. If not specified, version 1.1 is used.

       -X   Specifies that XML (Apple plist) output is desired instead of the plain text report. This option is incompatible with the  -i  (inter-
	    val) and -n (repeat-count) options.

       -c   Specifies that CSV (comma-separated values) output is desired instead of the plain text output.

       -d name=value
	    Defines the named variable.

       -f filename
	    Defines the default request filename for tests.

       -i seconds
	    Specifies  that  the (last) file should be repeated at the specified interval. This option is incompatible with the -X (XML plist out-
	    put) option.

       -l   Specifies that plain text output is desired.

       -n repeat-count
	    Specifies that the (last) file should be repeated the specified number of times. This option is incompatible with the  -X  (XML  plist
	    output) option.

       -t   Specifies that CUPS test report output is desired instead of the plain text output.

       -v   Specifies that all request and response attributes should be output in CUPS test mode (-t). This is the default for XML output.

COMPATIBILITY

       The ipptool program is unique to CUPS.

EXAMPLES

       Get a list of completed jobs for "myprinter":
	   ipptool ipp://localhost/printers/myprinter get-completed-jobs.test

       Send email notifications to "user@example.com" when "myprinter" changes:
	   ipptool -d recipient=mailto:user@example.com 	ipp://localhost/printers/myprinter create-printer-subscription.test

STANDARD FILES

       The following standard files are available:
	   create-printer-subscription.test
	   get-completed-jobs.test
	   get-jobs.test
	   ipp-1.1.test
	   ipp-2.0.test
	   ipp-2.1.test
	   testfile.jpg
	   testfile.pdf
	   testfile.ps
	   testfile.txt

SEE ALSO

       ipptoolfile(5),
       http://localhost:631/help

COPYRIGHT

       Copyright 2007-2010 by Apple Inc.

9 November 2010 						       CUPS								ipptool(1)
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