Run cygwin executable as CGI
This is a discussion on Run cygwin executable as CGI within the Apache Web Server forums, part of the Web Server and Related Forums category; Hi, I would like to be able to execute a binary compiled with cygwin as CGI *with Apache 2.2....
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01-18-2007
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Run cygwin executable as CGI
Hi,
I would like to be able to execute a binary compiled with cygwin as CGI *with Apache 2.2.4 for windows*. I already updated the httpd.conf of the web server so that all .exe are properly managed as CGI scripts. So for the moment, the following program compiled with Visual .NET works as expected: -------------------------------------------------------------------- #include <stdio.h> int main() { printf("Content-type: text/html; charset=iso-8859-1\n\n"); printf("<html><body>Hello World!\n</body></html>"); return 0; } -------------------------------------------------------------------- However if I run those compiled under cygwin environment with gcc, I got the following Apache error log entry when I try to execute it: [Thu Jan 18 14:34:50 2007] [error] [client 129.73.8.72] Premature end of script headers: foo.exe I changed the `LogLevel' to `debug' in the `httpd.conf' but it doesn't provide more information about what is going on. I guess it's because of the cygwin required libraries. But I copied the required `zlib1.dll' and `cygz.dll' files in C:/WINDOWS to be able to run the cygwin binaries from the windows command line. I suppose that the Apache child process has a smaller environment so I copied the 2 cygwin DLL in C:\Program Files\Apache Software Foundation\Apache2.2\bin but nothing better.... I wrote a small shell script to try to understand what is going on in the child process, here it is: -------------------------------------------------------------------- #!c:/cygwin/bin/sh.exe ## ## debug.sh ## echo -e "Content-type: text/plain; charset=iso-8859-1\n\n" env echo echo echo "Cygwin Location of foo: " ls -l $PWD/foo ../foo echo "Return value: $?" echo echo "Another try but with the windows path (c:/cygwin/opt/www/cgi-bin/foo):" c:/cygwin/opt/www/cgi-bin/foo echo "Return value: $?" echo echo "Another try but with windows interpreter:" cmd /C "c:\cygwin\opt/www\cgi-bin\foo.exe" echo "Return value: $?" -------------------------------------------------------------------- and here is the output when run as CGI script: -------------------------------------------------------------------- SERVER_SIGNATURE= TERM=cygwin WINDIR=C:\WINDOWS HTTP_X_FORWARDED_FOR=XXX.XXX.XXX.XXX HTTP_USER_AGENT=Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1 SERVER_PORT=80 HTTP_HOST=XXXXXX DOCUMENT_ROOT=C:/Program Files/Apache Software Foundation/Apache2.2/htdocs HTTP_ACCEPT_CHARSET=ISO-8859-1,utf-8;q=0.7,*;q=0.7 SCRIPT_FILENAME=C:/cygwin/opt/www/cgi-bin/debug.sh REQUEST_URI=/bin/debug.sh SCRIPT_NAME=/bin/debug.sh HTTP_VIA=1.1 proxy (NetCache NetApp/6.0.3) HTTP_CONNECTION=keep-alive REMOTE_PORT=19717 PATH=/opt/www/bin:/usr/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem: PWD=/opt/www/cgi-bin SERVER_ADMIN=XXXXXXX@XXXXX HTTP_ACCEPT_LANGUAGE=en-us,en;q=0.5 HTTP_ACCEPT=text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 REMOTE_ADDR=XXX.XXX.XXX.XXX SHLVL=1 HOME=/ SERVER_NAME=XXXXX PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WS F;.WSH COMSPEC=C:\WINDOWS\system32\cmd.exe SERVER_SOFTWARE=Apache/2.2.4 (Win32) SYSTEMROOT=C:\WINDOWS QUERY_STRING= SERVER_ADDR=XXX.XXX.XXX.XXX GATEWAY_INTERFACE=CGI/1.1 SERVER_PROTOCOL=HTTP/1.1 HTTP_CACHE_CONTROL=max-age=0 HTTP_ACCEPT_ENCODING=gzip,deflate REQUEST_METHOD=GET _=/usr/bin/env Cygwin Location of foo: -rwxr-xr-x 1 tristan ???????? 8873 Jan 18 14:34 /opt/www/cgi-bin/foo Return value: 34 Another try but with the windows path (c:/cygwin/opt/www/cgi-bin/foo): Return value: 34 Another try but with windows interpreter: Return value: 34 -------------------------------------------------------------------- The errno of 34 is: #define ERANGE 34 /* Math result not representable */ so I guess it does not refer to this ... and I can't find another clue... So if you have already encountered this problem ... I would be glad that you share your experience. I know a little bit about apache, so maybe there is a way to have more details about why the child process. Thank you by advance -- Tristan Carel |
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