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ns_return(3aolserver) AOLserver Built-In Commands ns_return(3aolserver)


ns_connsendfp, ns_respond, ns_return, ns_returnadminnotice, ns_returnbadrequest, ns_returnerror, ns_returnfile, ns_returnforbidden, ns_returnfp, ns_returnnotfound, ns_returnnotice, ns_returnredirect, ns_returnunauthorized, ns_write - commands


ns_connsendfp fp len


ns_return status type string

ns_returnadminnotice status msg ?longmsg?

ns_returnbadrequest reason

ns_returnerror status msg

ns_returnfile status type filename


ns_returnfp status type fileid len


ns_returnnotice status msg ?longmsg?

ns_returnredirect location


ns_write string


These procedures provide a simple interface for returning information to the client. They build HTTP/1.0 headers and send the appropriate data out the socket to the client. The script does not end at the time ns_return* is invoked so you can continue processing data after the client has gotten the data and closed the socket.

type should be a MIME type (see ns_guesstype manual page for a list). status is a three-digit number fitting the pattern below:

1xx Informational - Not used, but reserved for future use.
2xx Success - The action was successfully received, understood, and accepted.
3xx Redirection - Further action must be taken in order to complete the request.
4xx Client Error - The request contains bad syntax or cannot be fulfilled.
5xx Server Error - The server failed to fulfill an apparently valid request. 

Some common status values and their meanings are:

201 Created
202 Accepted
203 Provisional Information
204 No Content
300 Multiple Choices
301 Moved Permanently
302 Moved Temporarily
303 Method
304 Not Modified
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 None Acceptable
407 Proxy Authentication Required
408 Request Time-out
409 Conflict
410 Gone
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Time-out


This function writes len bytes of the specified channel or file to the conn.
Sends back both the headers and the string.
Wraps the text msg and longmsg in some html, appends a line with a link to "mailto:serveradministrator" based on the virtual server parameter "WebMaster".
Returns a 400 status code and a formatted HTML message containing the reason text.
Wraps the text msg in some html and returns that to the client.
Sends back the headers and the contents of the file.
Returns a 403 status code.
First sends the appropriate headers. Next, it writes out the contents of file from the current file position until the end of the file.
Returns a 404 status code.
Wraps teh text msg and longmsg in some html and returns that to the client.
Returns a redirect to the passed in location
Returns a 401 status code
Writes the string out the connection. You can use it instead of the ns_return or ns_respond functions to build HTTP responses. AOLserver will not include the usual headers on the output data. The script does not end at the time ns_write* is invoked so you can continue processing data after the client has gotten the data and closed the socket.


ns_respond(n), ns_writefp(n)


4.0 AOLserver