Cgi Error Code
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Gateway Interface 3.7 Status Codes Status codes are used by the HTTP protocol to communicate cgi script error the status of a request. For example, if a document does
Cgi Error 500
not exist, the server returns a "404" status code to the browser. If a document has been moved, cgi error premature end of script headers a "301" status code is returned. CGI programs can send status information as part of a virtual document. Here's an arbitrary example that returns success if the remote
Cgi Error Ah01215
host name is bu.edu, and failure otherwise: #!/usr/local/bin/perl $remote_host = $ENV{'REMOTE_HOST'}; print "Content-type: text/plain", "\n"; if ($remote_host eq "bu.edu") { print "Status: 200 OK", "\n\n"; print "Great! You are from Boston University!", "\n"; } else { print "Status: 400 Bad Request", "\n\n"; print "Sorry! You need to access this from Boston University!", "\n"; } exit (0); The Status cgi error log header consists of a three-digit numerical status code, followed by a string representing the code. A status value of 200 indicates success, while a value of 400 constitutes a bad request. In addition to these two, there are numerous other status codes you can use for a variety of situations, ranging from an unauthorized or forbidden request to internal system errors. Table 3.3 shows a list of some of commonly used status codes. Table 3.3: HTTP Status Codes Status Code Message 200 Success 204 No Response 301 Document Moved 401 Unauthorized 403 Forbidden 404 Not Found 500 Internal Server Error 501 Not Implemented For a complete listing of status codes, see: http://www.w3.org/hypertext/WWW/Protocols/HTTP/HTRESP.html Unfortunately, most browsers do not support all of them. The "No Response" Code One status code that deserves special attention is status code 204, which produces a "no response." In other words, the browser will not load a new page if your CGI program returns a status code of 204: #!/usr/local/bin/perl print "Content-type: text/plain", "\n"; print "Status: 204 No Respon
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developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the mailman cgi error Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up return http error code from CGI http://www.oreilly.com/openbook/cgi/ch03_07.html C module up vote 1 down vote favorite I've a CGI module written in C & for some condition I want to return HTTP error 400 from this module. The problem is - I don't know how to return HTTP error from the module. Looks like the 'return(-1)' in my module, returns the 500 internal server error. I've tried returning 400 etc. but in vein. I've http://stackoverflow.com/questions/15656514/return-http-error-code-from-cgi-c-module even tried "printf("Status:400");" before returning -1 (as suggested here: How to return a 500 HTTP status from a C++ CGI program ) but that didn't work. Any advice on this would be appreciated. Edit: [solved] I was able to return HTTP error code from the python module (which is called later by this C CGI module). So didn't get to try the suggestion mentioned in comments below. Thanks for offering help, though. c http module cgi share|improve this question edited Apr 4 '13 at 9:02 asked Mar 27 '13 at 10:22 v.rathor 244 return 0, but set the header appropriately - it returns it's own error when the exit code of the script is non-zero –Petesh Mar 27 '13 at 10:28 1 Please show us what you have tried, in it's exact form. –Seb Mar 27 '13 at 10:47 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote To return HTTP error 400 to the HTTP client, you have to write the HTTP status line of the HTTP header to stdout, like this: printf("HTTP/1.1 400 Bad Request\r\n"); (this must be the first line that you write to st
Gateway Interface (CGI) Version 1.1 Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2004). IESG Note This document is not a candidate for any level of Internet Standard. The IETF https://tools.ietf.org/html/rfc3875 disclaims any knowledge of the fitness of this document for any purpose, and in particular notes that it has not had IETF review for such things as security, congestion control or inappropriate interaction with deployed protocols. The RFC Editor has chosen to publish this document at its discretion. Readers of this document should exercise caution in evaluating its value for implementation and deployment. Abstract The Common Gateway Interface (CGI) is a simple interface for running external programs, software or gateways under an information server in cgi error a platform-independent manner. Currently, the supported information servers are HTTP servers. The interface has been in use by the World-Wide Web (WWW) since 1993. This specification defines the 'current practice' parameters of the 'CGI/1.1' interface developed and documented at the U.S. National Centre for Supercomputing Applications. This document also defines the use of the CGI/1.1 interface on UNIX(R) and other, similar systems. Robinson & Coar Informational [Page 1] RFC 3875 CGI Version 1.1 October 2004 Table of Contents 1. Introduction. . . . . . . cgi error code . . . . . . . . . . . . . . . . . . 4 1.1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2. Requirements . . . . . . . . . . . . . . . . . . . . . . 4 1.3. Specifications . . . . . . . . . . . . . . . . . . . . . 4 1.4. Terminology . . . . . . . . . . . . . . . . . . . . . . 5 2. Notational Conventions and Generic Grammar. . . . . . . . . . 5 2.1. Augmented BNF . . . . . . . . . . . . . . . . . . . . . 5 2.2. Basic Rules . . . . . . . . . . . . . . . . . . . . . . 6 2.3. URL Encoding . . . . . . . . . . . . . . . . . . . . . . 7 3. Invoking the Script . . . . . . . . . . . . . . . . . . . . . 8 3.1. Server Responsibilities . . . . . . . . . . . . .