# Configuratioin fastcgi C/C++ program **URL:** \ **Category:** NGINX\ **Created:** [June 1, 2010, 9:32pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498 "2010-06-01T21:32:44Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 1, 2010, 9:32pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/1 "2010-06-01T21:32:44Z")
hello I have a fastcgi program like this ```auto 1 #include "/usr/local/include/fcgi_stdio.h" 2 #include 3 int count; 4 void initialize(void) 5 { 6 count=0; 7 } 8 int main(void) 9 { 10 initialize(); 11 12 while (FCGI_Accept() >= 0) 13 { 14 printf("Content-type: text/html\r\n" 15 "\r\n" 16 "FastCGI Hello! (C, fcgi_stdio library)" 17 "

FastCGI Hello! (C, fcgi_stdio library)

" 18 "Request number %d running on host %s\n", 19 ++count, getenv("SERVER_HOSTNAME")); 20 } 21 return 1; 22 } ``` which compiles fine but I am unable to configure nginx to execute it. I read [http://wiki.nginx.org/NginxConfiguration](http://wiki.nginx.org/NginxConfiguration) but to no avail. Also, once I will have figured this out, I will need that program to work with the nginx\_http\_push\_module-0.692 Nginx is otherwise working fine on my Centos 5 machine. Could anyone point me to an example for such a configuration. Thank you Posted at Nginx Forum: > **[configuratioin fastcgi C/C++ program](https://forum.nginx.org/read.php?2,93268,93268#msg-93268)** > > hello I have a fastcgi program like this \[code\] 1 #include "/usr/local/include/fcgi\_stdio.h" 2 #include \ 3 int count; 4 void initialize(void) 5 { 6 count=0; 7 ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 1:32am UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/2 "2010-06-02T01:32:10Z")
On Tue, Jun 1, 2010 at 12:31 PM, JCR [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > ``` > 7 } > 18 "Request number %d running on host %s\n", > 19 ++count, getenv("SERVER_HOSTNAME")); > 20 } > 21 return 1; > 22 } > > ``` > > [/code] > > which compiles fine but I am unable to configure nginx to execute it. you need to plug your code to a socket/port. nginx than talks to that with fcgi\_pass. > **[Configuration File — Supervisor 4.3.0 documentation](https://supervisord.org/configuration.html)** this is one of the options that can plug your code to socket/port (the “fcgi-program” directive) > Posted at Nginx Forum: [http://forum.nginx.org/read.php?2,93268,93268#msg-93268](http://forum.nginx.org/read.php?2,93268,93268#msg-93268) > > * * * > > nginx mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://nginx.org/mailman/listinfo/nginx) – python/django hacker & sys admin [http://almirkaric.com](http://almirkaric.com) & [http://twitter.com/redduck666](http://twitter.com/redduck666) ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 3:53pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/3 "2010-06-02T15:53:09Z")
Almir, Thank your for your help. I have supervisor running with: at the end of supervisord.conf: 131 [fcgi-program:chat] 132 command=/websites/nginx/chat.toff 133 socket=tcp://localhost:9000 supervisor\> status chat RUNNING pid 4904, uptime 0:01:45 in my nginx.conf file I have: 56 location ~ .toff$ { 57 #include /usr/local/nginx/conf/fastcgi.conf; 58 fastcgi\_pass localhost:9000; 59 } now when I browse my page, I am getting this in logs/error.log 2010/06/02 09:45:31 [error] 5839#0: \*136 upstream prematurely closed connection while reading response header from upstream, client: 70.48.66.49, server: \*.example.com, request: “GET /chat.toff HTTP/1.1”, upstream: “fastcgi://127.0.0.1:9000”, host: “[www.example.com:8080](http://www.example.com:8080)” Any idea? Thanks again Posted at Nginx Forum: > **[Re: configuratioin fastcgi C/C++ program](https://forum.nginx.org/read.php?2,93268,93580#msg-93580)** > > hello I have a fastcgi program like this \[code\] 1 #include "/usr/local/include/fcgi\_stdio.h" 2 #include \ 3 int count; 4 void initialize(void) 5 { 6 count=0; 7 ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 5:49pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/4 "2010-06-02T17:49:05Z")
> 56 location /chat/ { > 57 include /usr/local/nginx/conf/fastcgi.conf; > 58 fastcgi\_pass localhost:9000; > 59 } try something like this. the commented out fastcgi.conf may have something to do with the error. showing fastcgi.conf may be also a good idea i would also check the supervisor stdout/stderr of your program On Wed, Jun 2, 2010 at 6:52 AM, JCR [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > chat RUNNING pid 4904, uptime 0:01:45 > Any idea? Thanks again > > Posted at Nginx Forum: [http://forum.nginx.org/read.php?2,93268,93580#msg-93580](http://forum.nginx.org/read.php?2,93268,93580#msg-93580) > > * * * > > nginx mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://nginx.org/mailman/listinfo/nginx) – python/django hacker & sys admin [http://almirkaric.com](http://almirkaric.com) & [http://twitter.com/redduck666](http://twitter.com/redduck666) ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 6:18pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/5 "2010-06-02T18:18:57Z")
The log file of supervisord tells me: 2010-06-02 11:59:46,441 INFO exited: chat\_04 (terminated by SIGSEGV; not expected) Does that point to a memory issue with my fasctcgi program? Posted at Nginx Forum: > **[Re: configuratioin fastcgi C/C++ program](https://forum.nginx.org/read.php?2,93268,93641#msg-93641)** > > hello I have a fastcgi program like this \[code\] 1 #include "/usr/local/include/fcgi\_stdio.h" 2 #include \ 3 int count; 4 void initialize(void) 5 { 6 count=0; 7 ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 9:01pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/6 "2010-06-02T21:01:04Z")
Hi, it looks like the problem was that I was using getenv(“SERVER\_HOSTNAME”). I am not sure why this happens but at least it is working now. When I change my chat program, I do supervisorctl shutdown; supervisord; to see the newer version. Is there a better way to that? Thanks again for your idea of using supervisord. Maybe that should go into wiki because it is quite convenient. Posted at Nginx Forum: > **[Re: configuratioin fastcgi C/C++ program](https://forum.nginx.org/read.php?2,93268,93705#msg-93705)** > > hello I have a fastcgi program like this \[code\] 1 #include "/usr/local/include/fcgi\_stdio.h" 2 #include \ 3 int count; 4 void initialize(void) 5 { 6 count=0; 7 ---
**Author:** ![JCR](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/258eb7/32.png) [@JCR](https://www.ruby-forum.com/u/JCR)\ **Post date:** [June 2, 2010, 9:31pm UTC](https://www.ruby-forum.com/t/configuratioin-fastcgi-c-c-program/189498/7 "2010-06-02T21:31:30Z")
You can do supervisorctl restart chat