--- /dev/null	2012-03-14 08:46:51.216087328 +0100
+++ new/common/src/uncygdrive.c	2012-04-04 16:39:06.726689137 +0200
@@ -0,0 +1,254 @@
+/*
+ * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <Windows.h>
+#include <io.h>
+#include <stdio.h>
+#include <string.h>
+#include <malloc.h>
+
+/* 
+ * Test if pos points to /cygdrive/_/ where _ can 
+ * be any character. 
+ */
+int is_cygdrive_here(int pos, char *in, int len)
+{
+  // Length of /cygdrive/c/ is 12
+  if (pos+12 > len) return 0;
+  if (in[pos+11]=='/' &&
+      in[pos+9]=='/' &&
+      in[pos+8]=='e' &&
+      in[pos+7]=='v' &&
+      in[pos+6]=='i' &&
+      in[pos+5]=='r' &&
+      in[pos+4]=='d' &&
+      in[pos+3]=='g' &&
+      in[pos+2]=='y' &&
+      in[pos+1]=='c' &&
+      in[pos+0]=='/') {
+    return 1;
+  }
+  return 0;
+}
+
+/* 
+ * Replace /cygdrive/_/ with _:/
+ * Works in place since drive letter is always
+ * shorter than /cygdrive/
+ */
+char *replace_cygdrive(char *in)
+{
+  int len = strlen(in);
+  char *out = malloc(len+1);
+  int i,j;
+
+  if (len < 12) {
+    strcpy(out, in);
+    return out;
+  }
+  for (i = 0, j = 0; i<len;) {
+    if (is_cygdrive_here(i, in, len)) {
+      out[j++] = in[i+10];
+      out[j++] = ':';
+      i+=11;
+    } else {
+      out[j] = in[i];
+      i++;
+      j++;
+    }
+  }
+  out[j] = 0;
+  return out;
+}
+
+void append(char **b, size_t *bl, size_t *u, char *add, size_t addlen)
+{
+  while ( (addlen+*u+1) > *bl) {
+    *bl *= 2;
+    *b = realloc(*b, *bl);
+  }
+  memcpy(*b+*u, add, addlen);
+  *u += addlen;   
+}
+
+/*
+ * Creates a new string from in where the first occurance of sub is
+ * replaced by rep.
+ */
+char *replace_substring(char *in, char *sub, char *rep)
+{
+  int in_len = strlen(in);
+  int sub_len = strlen(sub);
+  int rep_len = strlen(rep);
+  char *out = malloc(in_len - sub_len + rep_len + 1);
+  char *p;
+
+  if (!(p = strstr(in, sub))) {
+    // If sub isn't a substring of in, just return in.
+    return in;
+  }
+
+  // Copy characters from beginning of in to start of sub.
+  strncpy(out, in, p - in);
+  out[p - in] = '\0';
+
+  sprintf(out + (p - in), "%s%s", rep, p + sub_len);
+
+  return out;
+}
+
+char *files_to_delete[1024];
+int num_files_to_delete = 0;
+
+char *fix_at_file(char *in)
+{
+  char *tmpdir;
+  char name[2048]; 
+  char *atname;
+  char *buffer;
+  size_t buflen=65536;
+  size_t used=0;
+  size_t len;
+  int rc;
+  FILE *atout;
+  FILE *atin;
+  char block[2048];
+  size_t blocklen;
+  char *fixed;
+
+  atin = fopen(in+1, "r");
+  if (atin == NULL) {
+    fprintf(stderr, "Could not read at file %s\n", in+1);
+    exit(-1);
+  }
+
+  tmpdir = getenv("TMP");
+  if (tmpdir == NULL) {
+    tmpdir = "c:/cygwin/tmp";
+  }
+  _snprintf(name, sizeof(name), "%s\\atfile_XXXXXX", tmpdir);
+
+  rc = _mktemp_s(name, strlen(name)+1); 
+  if (rc) {
+    fprintf(stderr, "Could not create temporary file name for at file!\n");
+    exit(-1);
+  }
+
+  atout = fopen(name, "w");
+  if (atout == NULL) {
+    fprintf(stderr, "Could open temporary file for writing! %s\n", name);
+    exit(-1);
+  }
+
+  buffer = malloc(buflen);
+  while((blocklen = fread(block,1,sizeof(block),atin)) > 0) {
+    append(&buffer, &buflen, &used, block, blocklen);
+  }
+  buffer[used] = 0;
+  fixed = replace_cygdrive(buffer);
+  fwrite(fixed, strlen(fixed), 1, atout);
+  fclose(atin);
+  fclose(atout);
+  free(fixed);
+  free(buffer);
+  files_to_delete[num_files_to_delete] = malloc(strlen(name)+1);
+  strcpy(files_to_delete[num_files_to_delete], name);
+  num_files_to_delete++;
+  atname = malloc(strlen(name)+2);
+  atname[0] = '@';
+  strcpy(atname+1, name);
+  return atname;
+}
+
+int main(int argc, char **argv)
+{
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+    unsigned short rc;    
+
+    char *new_at_file;
+    char *old_at_file;
+    char *line;
+    int i;
+    DWORD exitCode;
+
+    if (argc<2) {
+        fprintf(stderr, "Usage: uncygdrive.exe /cygdrive/c/WINDOWS/notepad.exe /cygdrive/c/x/test.txt");
+        exit(0);
+    }
+
+    line = replace_cygdrive(strstr(GetCommandLine(), argv[1]));
+
+    for (i=1; i<argc; ++i) {
+       if (argv[i][0] == '@') {
+          // Found at-file! Fix it!
+          old_at_file = replace_cygdrive(argv[i]);
+          new_at_file = fix_at_file(old_at_file);
+          line = replace_substring(line, old_at_file, new_at_file);
+       }
+    }
+
+    if (getenv("DEBUG_UNCYGDRIVE") != NULL) {
+      fprintf(stderr, "uncygdrive >%s<\n", line);
+    }
+
+    ZeroMemory(&si,sizeof(si));
+    si.cb=sizeof(si);
+    ZeroMemory(&pi,sizeof(pi));
+
+    rc = CreateProcess(NULL,
+                       line,
+                       0,
+                       0,
+                       TRUE,
+                       0,
+                       0,
+                       0,
+                       &si,
+                       &pi);
+    if(!rc)
+    {
+      //Could not start process;
+      fprintf(stderr, "Could not start process!\n");
+      exit(-1);
+    }
+
+    WaitForSingleObject(pi.hProcess,INFINITE);
+    GetExitCodeProcess(pi.hProcess,&exitCode);
+
+    if (getenv("DEBUG_UNCYGDRIVE") != NULL) {
+      for (i=0; i<num_files_to_delete; ++i) {
+	fprintf(stderr, "Not deleting temporary uncygdrive file %s\n",
+		files_to_delete[i]);     
+      }
+    }
+    else {
+      for (i=0; i<num_files_to_delete; ++i) {
+	remove(files_to_delete[i]);
+      }
+    }
+    
+    exit(exitCode);
+}