From bab39151c44f47c296a53f32f378b948d6d11cef Mon Sep 17 00:00:00 2001
From: epochqwert <epoch@hacking.allowed.org>
Date: Mon, 18 May 2015 01:36:31 -0500
Subject: added support for a few more env vars for CGIs to use.

---
 src/libexec/httpd.c | 62 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 37 insertions(+), 25 deletions(-)

diff --git a/src/libexec/httpd.c b/src/libexec/httpd.c
index c2a5daf..5fc4825 100644
--- a/src/libexec/httpd.c
+++ b/src/libexec/httpd.c
@@ -20,30 +20,30 @@
 /* just notes for environment variables for CGIs when I need them.
 
 Key             Value
-DOCUMENT_ROOT   The root directory of your server
-HTTP_COOKIE     The visitor's cookie, if one is set
-HTTP_HOST       The hostname of the page being attempted
-HTTP_REFERER    The URL of the page that called your program
-HTTP_USER_AGENT The browser type of the visitor
-HTTPS           "on" if the program is being called through a secure server
-PATH            The system path your server is running under
-QUERY_STRING    The query string (see GET, below)
-REMOTE_ADDR     The IP address of the visitor
-REMOTE_HOST     The hostname of the visitor (if your server has
-                reverse-name-lookups on; otherwise this is the IP address again)
-REMOTE_PORT     The port the visitor is connected to on the web server
-REMOTE_USER     The visitor's username (for .htaccess-protected pages)
-REQUEST_METHOD  GET or POST
-REQUEST_URI     The interpreted pathname of the requested document or CGI
-                (relative to the document root)
-SCRIPT_FILENAME The full pathname of the current CGI
-SCRIPT_NAME     The interpreted pathname of the current CGI (relative to
-                the document root)
-SERVER_ADMIN    The email address for your server's webmaster
-SERVER_NAME     Your server's fully qualified domain name (e.g.
-                www.cgi101.com)
-SERVER_PORT     The port number your server is listening on
-SERVER_SOFTWARE The server software you're using (e.g. Apache 1.3)
+_ DOCUMENT_ROOT   The root directory of your server
+x HTTP_COOKIE     The visitor's cookie, if one is set
+x HTTP_HOST       The hostname of the page being attempted
+x HTTP_REFERER    The URL of the page that called your program
+x HTTP_USER_AGENT The browser type of the visitor
+_ HTTPS           "on" if the program is being called through a secure server
+x PATH            The system path your server is running under
+x QUERY_STRING    The query string (see GET, below)
+x REMOTE_ADDR     The IP address of the visitor
+x REMOTE_HOST     The hostname of the visitor (if your server has
+                  reverse-name-lookups on; otherwise this is the IP address again)
+x REMOTE_PORT     The port the visitor is connected to on the web server
+_ REMOTE_USER     The visitor's username (for .htaccess-protected pages)
+x REQUEST_METHOD  GET or POST
+_ REQUEST_URI     The interpreted pathname of the requested document or CGI
+                  (relative to the document root)
+_ SCRIPT_FILENAME The full pathname of the current CGI
+_ SCRIPT_NAME     The interpreted pathname of the current CGI (relative to
+                  the document root)
+x SERVER_ADMIN    The email address for your server's webmaster
+x SERVER_NAME     Your server's fully qualified domain name (e.g.
+                  www.cgi101.com)
+x SERVER_PORT     The port number your server is listening on
+x SERVER_SOFTWARE The server software you're using (e.g. Apache 1.3)
 */
 
 void standard_headers() {
@@ -53,6 +53,7 @@ void standard_headers() {
 
 int main(int argc,char *argv[]) {
  int fd;
+ char tmp[512];
  char *name[10];
  int s,n;
  char *method;
@@ -77,8 +78,11 @@ int main(int argc,char *argv[]) {
   syslog(LOG_WARNING,"getsockname: %m");
  getnameinfo((struct sockaddr *)&sa6,sl,h,sizeof(h),p,sizeof(p),NI_NUMERICHOST|NI_NUMERICSERV);
  setenv("SERVER_ADDR",h,1);
+ setenv("SERVER_HOST",h,1);//only IP for now
  setenv("SERVER_PORT",p,1);
 
+ setenv("SERVER_SOFTWARE",SERVER,1);
+
  if(!strchr(line,'\n')) {
   printf("HTTP/1.1 413 Entity Too Large\r\n");
   standard_headers();
@@ -114,6 +118,12 @@ int main(int argc,char *argv[]) {
    return 0;
   }
   if(strchr(line,'\r')) *strchr(line,'\r')=0;
+  if(!strncasecmp(line,"Referer: ",9)) {
+   setenv("HTTP_REFERER",line+9,1);
+  }
+  if(!strncasecmp(line,"Cookie: ",8)) {
+   setenv("HTTP_COOKIE",line+8,1);
+  }
   if(!strncasecmp(line,"Host: ",6)) {
    setenv("HTTP_HOST",line+6,1);
   }
@@ -156,6 +166,9 @@ int main(int argc,char *argv[]) {
    exit(2);
   }
  }
+ snprintf(tmp,sizeof(tmp),"webmaster@%s",getenv("HTTP_HOST"));
+ setenv("SERVER_NAME",getenv("HTTP_HOST"),1);
+ setenv("SERVER_ADMIN",tmp,1);
  if(strncmp(page,"/cgi-bin/",9)) {
   for(;*page == '/';page++);
   if(page[strlen(page)-1] == '/') {
@@ -205,7 +218,6 @@ int main(int argc,char *argv[]) {
   printf("HTTP/1.1 200 OK\r\n");
   standard_headers();
   fflush(stdout);
-  //what was this needed for? breaks ?page=ident if closed.
   if(!strcmp(method,"GET")) close(STDIN_FILENO);
   execv(name[0],name);
  }
-- 
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