[busybox][patch] add DOCUMENT_ROOT and SCRIPT_FILENAME to Env (for php cgi scripts)

[Jon Nalley]

The attached patch adds DOCUMENT_ROOT and SCRIPT_FILENAME to the
environment for cgi scripts.  This is needed for executing php CGI
scripts.


-------------- next part --------------
--- busybox-1.00-pre10/networking/httpd.c.orig	Mon Mar 15 02:28:48 2004
+++ busybox-1.00-pre10/networking/httpd.c	Wed Apr 14 15:49:35 2004
@@ -120,6 +120,7 @@
 static const char default_path_httpd_conf[] = "/etc";
 static const char httpd_conf[] = "httpd.conf";
 static const char home[] = "./";
+static const char *home_httpd = "./";
 
 #ifdef CONFIG_LFS
 # define cont_l_fmt "%lld"
@@ -1077,6 +1078,7 @@
     if (!pid) {
       /* child process */
       char *script;
+      char *scriptfilename;
       char *purl = strdup( url );
       char realpath_buff[MAXPATHLEN];
 
@@ -1115,6 +1117,7 @@
 	}
 	*script = '/';          /* is directory, find next '/' */
       }
+      addEnv("DOCUMENT_ROOT", "",  home_httpd);
       addEnv("PATH", "INFO", script);   /* set /PATH_INFO or NULL */
       addEnv("PATH",           "",         getenv("PATH"));
       addEnv("REQUEST",        "METHOD",   request);
@@ -1130,6 +1133,13 @@
 	*script = '\0';         /* reduce /PATH_INFO */
       /* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
       addEnv("SCRIPT_NAME",    "",         purl);
+
+      scriptfilename = strdup(home_httpd);
+      strcat(scriptfilename, purl);
+
+      /* Create the Script File Name */
+      addEnv("SCRIPT_FILENAME",    "",     scriptfilename);
+
       addEnv("QUERY_STRING",   "",         urlArgs);
       addEnv("SERVER",         "SOFTWARE", httpdVersion);
       addEnv("SERVER",         "PROTOCOL", "HTTP/1.0");
@@ -1899,7 +1909,7 @@
 #endif
 {
   unsigned long opt;
-  const char *home_httpd = home;
+  home_httpd = home;
   char *url_for_decode;
 #ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
   const char *url_for_encode;