[w3m-dev 03679] Re: cleanup for pipe

* etc.c (open_pipe_rw): check stdin, stdout
* file.c (uncompress_stream): rewrite
From: Hironori SAKAMOTO <hsaka@mth.biglobe.ne.jp>

etc.c

@@ -1,4 +1,4 @@
-/* $Id: etc.c,v 1.54 2003/01/22 16:11:03 ukai Exp $ */
+/* $Id: etc.c,v 1.55 2003/01/23 15:59:25 ukai Exp $ */
 #include "fm.h"
 #include <pwd.h>
 #include "myctype.h"
@@ -1369,11 +1369,17 @@ open_pipe_rw(FILE ** fr, FILE ** fw)
     else {
 	if (fr) {
 	    close(fdr[1]);
-	    *fr = fdopen(fdr[0], "r");
+	    if (*fr == stdin)
+		dup2(fdr[0], 0);
+	    else
+	        *fr = fdopen(fdr[0], "r");
 	}
 	if (fw) {
 	    close(fdw[0]);
-	    *fw = fdopen(fdw[1], "w");
+	    if (*fw == stdout)
+		dup2(fdw[1], 1);
+	    else
+		*fw = fdopen(fdw[1], "w");
 	}
     }
     return pid;