* Makefile.in (DLL_OFILES): Add winf.o.

* spawn.cc: Move command line handling stuff into winf.cc.
* winf.h: New file.
* winf.cc: New file.

winsup/cygwin/winf.h

@@ -0,0 +1,82 @@
+/* winf.h
+
+   Copyright 2003, 2004, 2005 Red Hat, Inc.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _WINF_H
+#define _WINF_H
+
+#define MAXWINCMDLEN 32767
+#define LINE_BUF_CHUNK (CYG_MAX_PATH * 2)
+
+class av
+{
+  char **argv;
+  int calloced;
+ public:
+  int argc;
+  bool win16_exe;
+  bool iscui;
+  av (): argv (NULL), iscui (false) {}
+  av (int ac_in, const char * const *av_in) : calloced (0), argc (ac_in), win16_exe (false), iscui (false)
+  {
+    argv = (char **) cmalloc (HEAP_1_ARGV, (argc + 5) * sizeof (char *));
+    memcpy (argv, av_in, (argc + 1) * sizeof (char *));
+  }
+  void *operator new (size_t, void *p) __attribute__ ((nothrow)) {return p;}
+  void set (int ac_in, const char * const *av_in) {new (this) av (ac_in, av_in);}
+  ~av ()
+  {
+    if (argv)
+      {
+	for (int i = 0; i < calloced; i++)
+	  if (argv[i])
+	    cfree (argv[i]);
+	cfree (argv);
+      }
+  }
+  int unshift (const char *what, int conv = 0);
+  operator char **() {return argv;}
+  void all_calloced () {calloced = argc;}
+  void replace0_maybe (const char *arg0)
+  {
+    /* Note: Assumes that argv array has not yet been "unshifted" */
+    if (!calloced)
+      {
+	argv[0] = cstrdup1 (arg0);
+	calloced = true;
+      }
+  }
+  void dup_maybe (int i)
+  {
+    if (i >= calloced)
+      argv[i] = cstrdup1 (argv[i]);
+  }
+  void dup_all ()
+  {
+    for (int i = calloced; i < argc; i++)
+      argv[i] = cstrdup1 (argv[i]);
+  }
+  int fixup (const char *, path_conv&, const char *);
+};
+
+class linebuf
+{
+ public:
+  size_t ix;
+  char *buf;
+  size_t alloced;
+  linebuf () : ix (0), buf (NULL), alloced (0) {}
+  ~linebuf () {if (buf) free (buf);}
+  void add (const char *what, int len) __attribute__ ((regparm (3)));
+  void add (const char *what) {add (what, strlen (what));}
+  void prepend (const char *what, int len);
+  void finish () __attribute__ ((regparm (1)));
+  bool fromargv(av&, char *);
+  operator char *() {return buf;}
+};
+
+#endif /*_WINF_H*/