proxy support for wget retriever

[Tollef Fog Heen <tollef@add.no>]

I think the patch is pretty self-explanatory.  It adds proxy support
for wget, and additionally, it _requires_ the user to input hostname
and directory.

Could somebody review it and apply (I'm in the NM queue and don't have an
account on debian.org).

-- 

Tollef Fog Heen
Unix _IS_ user friendly... It's just selective about who its friends are.

? wget-retriever
? foo.txt
? proxy.diff
Index: wget-retriever.c
===================================================================
RCS file: /cvs/debian-boot/debian-installer/retriever/wget/wget-retriever.c,v
retrieving revision 1.9
diff -c -r1.9 wget-retriever.c
*** wget-retriever.c	2000/12/13 02:48:05	1.9
--- wget-retriever.c	2000/12/19 10:28:24
***************
*** 2,8 ****
   * Retrieve files via busybox wget.
   * Copyright 2000 Joey Hess <joeyh@debian.org>, GPL'd
   *
-  * TODO: proxy support
   */
  
  #include <debconfclient.h>
--- 2,7 ----
***************
*** 21,32 ****
  	if (argc < 3)
  		exit(1);
  	
! 					    // TODO: what about ftp?
! 	debconf->command(debconf, "GET", DEBCONF_BASE "http/hostname", NULL);
! 	hostname=strdup(debconf->value);
! 	debconf->command(debconf, "GET", DEBCONF_BASE "http/directory", NULL);
! 	directory=debconf->value;
! 	
  	src=argv[1];
  	/*
  	 * Intercept requests for a Packages file, and
--- 20,51 ----
  	if (argc < 3)
  		exit(1);
  	
! 	// TODO: what about ftp?
! 	do {
! 	  debconf->command(debconf, "GET", DEBCONF_BASE "http/hostname", NULL);
! 	} while ((debconf->value == NULL) || (strcmp("",debconf->value) == 0));
! 	hostname = strdup(debconf->value);
! 
! 	do {
! 	  debconf->command(debconf, "GET", DEBCONF_BASE "http/directory", NULL);
! 	} while ((debconf->value == NULL) || (strcmp("",debconf->value) == 0));
! 	directory = strdup(debconf->value);
! 
! 	/* Proxy is optional - therefore no while() loop */
! 	debconf->command(debconf, "GET", DEBCONF_BASE "http/proxy", NULL);
! 
! 	if (strcmp(debconf->value,"") == 0) {
! 	  char* tmp;
! 	  tmp = malloc( 11 /* http_proxy= */ + strlen(debconf->value) + 1);
! 	  sprintf(tmp,"http_proxy=%s",debconf->value);
! 	  
! 	  ret = putenv(tmp);
! 	  if (ret == -1) {
! 	    return 1;
! 	  }
! 	  free(tmp);
! 	}
! 
  	src=argv[1];
  	/*
  	 * Intercept requests for a Packages file, and