From: tomo <tomo>
Date: Thu, 1 Apr 1999 10:43:34 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: r21-2b1~6
X-Git-Url: http://git.chise.org/gitweb/?a=commitdiff_plain;h=90a57cc641b0652187850356b66c2909f159897a;p=chise%2Fxemacs-chise.git.1

Initial revision
---

diff --git a/lib-src/run.c b/lib-src/run.c
new file mode 100644
index 0000000..f3830ed
--- /dev/null
+++ b/lib-src/run.c
@@ -0,0 +1,712 @@
+/* run -- Wrapper program for console mode programs under Windows(TM)
+ * Copyright (C) 1998  Charles S. Wilson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+/*
+ * This program is based on the runemacs.c distributed with XEmacs 21.0
+ *
+ * Simple program to start gnu-win32 X11 programs (and native XEmacs) 
+ * with its console window hidden.
+ *
+ * This program is provided purely for convenience, since most users will
+ * use XEmacs in windowing (GUI) mode, and will not want to have an extra
+ * console window lying around. Ditto for desktop shortcuts to gnu-win32 
+ * X11 executables.
+ */
+
+
+#define WIN32
+
+#include <windows.h>
+#include <string.h>
+#include <malloc.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "run.h"
+
+#if defined(__CYGWIN__)
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <sys/cygwin.h>
+ #include <sys/unistd.h>
+WinMainCRTStartup() { mainCRTStartup(); }
+#else
+ #include <direct.h>
+#endif
+
+
+char buffer[1024];
+
+int WINAPI
+WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow)
+{
+   int wait_for_child = FALSE;
+   int compact_invocation = FALSE;
+   DWORD ret_code = 0;
+
+
+   char execname[FILENAME_MAX];
+   char execpath[MAX_PATH];
+   char* argv[MAX_ARGS+1]; /* leave extra slot for compact_invocation argv[0] */
+   int argc;
+   int i,j;
+   char exec[MAX_PATH + FILENAME_MAX + 100];
+   char cmdline2[MAX_ARGS * MAX_PATH];
+
+   compact_invocation = get_exec_name_and_path(execname,execpath);
+
+   if (compact_invocation)
+   {
+      argv[0] = execname;
+      argc = parse_cmdline_to_arg_array(&(argv[1]),cmdline);
+      argc++;
+   }
+   else
+   {
+      argc = parse_cmdline_to_arg_array(argv,cmdline);
+      if (argc >= 1)
+         strcpy(execname,argv[0]);
+   }
+   /* at this point, execpath is defined, as are argv[] and execname */   
+#ifdef DEBUG
+   j = sprintf(buffer,"\nexecname : %s\nexecpath : %s\n",execname,execpath);
+   for (i = 0; i < argc; i++)
+      j += sprintf(buffer+j,"argv[%d]\t: %s\n",i,argv[i]);
+   Trace((buffer));
+#endif
+
+   if (execname == NULL)
+      error("you must supply a program name to run");
+
+#if defined(__CYGWIN__)
+   /* this insures that we search for symlinks before .exe's */
+   if (compact_invocation)
+      strip_exe(execname);
+#endif
+
+   process_execname(exec,execname,execpath);
+   Trace(("exec\t%s\nexecname\t%s\nexecpath\t%s\n",
+         exec,execname,execpath));
+
+   wait_for_child = build_cmdline(cmdline2,exec,argc,argv);
+   Trace((cmdline2));
+
+   xemacs_special(exec);
+   ret_code = start_child(cmdline2,wait_for_child);
+   if (compact_invocation)
+      for (i = 1; i < argc; i++) // argv[0] was not malloc'ed
+         free(argv[i]);
+   else
+      for (i = 0; i < argc; i++)
+         free(argv[i]);
+   return (int) ret_code;
+}
+int start_child(char* cmdline, int wait_for_child)
+{
+   STARTUPINFO start;
+   SECURITY_ATTRIBUTES sec_attrs;
+   SECURITY_DESCRIPTOR sec_desc;
+   PROCESS_INFORMATION child;
+   int retval;
+
+   memset (&start, 0, sizeof (start));
+   start.cb = sizeof (start);
+   start.dwFlags = STARTF_USESHOWWINDOW;
+   start.wShowWindow = SW_HIDE;
+      
+   sec_attrs.nLength = sizeof (sec_attrs);
+   sec_attrs.lpSecurityDescriptor = NULL;
+   sec_attrs.bInheritHandle = FALSE;
+
+   if (CreateProcess (NULL, cmdline, &sec_attrs, NULL, TRUE, 0,
+                      NULL, NULL, &start, &child))
+   {
+      if (wait_for_child)
+      {
+         WaitForSingleObject (child.hProcess, INFINITE);
+         GetExitCodeProcess (child.hProcess, &retval);
+      }
+      CloseHandle (child.hThread);
+      CloseHandle (child.hProcess);
+   }
+   else
+      error("could not start %s",cmdline);
+   return retval;
+}
+void xemacs_special(char* exec)
+{
+  /*
+   * if we're trying to run xemacs, AND this file was in %emacs_dir%\bin,
+   * then set emacs_dir environment variable 
+   */
+   char* p;
+   char* p2;
+   char exec2[MAX_PATH + FILENAME_MAX + 100];
+   char tmp[MAX_PATH + FILENAME_MAX + 100];
+   strcpy(exec2,exec);
+   /* this depends on short-circuit evaluation */
+   if ( ((p = strrchr(exec2,'\\')) && stricmp(p,"\\xemacs") == 0) ||
+        ((p = strrchr(exec2,'/')) && stricmp(p,"/xemacs") == 0) ||
+        ((p = strrchr(exec2,'\\')) && stricmp(p,"\\xemacs.exe") == 0) ||
+        ((p = strrchr(exec2,'/')) && stricmp(p,"/xemacs.exe") == 0) )
+   {
+      if ( ((p2 = strrchr(p, '\\')) && stricmp(p2, "\\bin") == 0) ||
+           ((p2 = strrchr(p, '/')) && stricmp(p2, "/bin") == 0) )
+      {
+         *p2 = '\0';   
+#if defined(__CYGWIN__)
+         CYGWIN_CONV_TO_POSIX_PATH((exec2,tmp));
+         strcpy(exec2,tmp);
+#else /* NATIVE xemacs DOS-style paths with forward slashes */
+         for (p = exec2; *p; p++)
+            if (*p == '\\') *p = '/';
+#endif
+         SetEnvironmentVariable ("emacs_dir", exec2);
+      }
+   }
+}
+int build_cmdline(char* new_cmdline, char* exec, int argc, char* argv[])
+{
+   int retval = FALSE;
+   int first_arg = 1;
+   int i;
+   int char_cnt = 0;
+   /*
+    * look for "-wait" as first true argument; we'll apply that ourselves
+    */
+   if ((argc >= 2) && (stricmp(argv[1],"-wait") == 0))
+   {
+      retval = TRUE;
+      first_arg++;
+   }
+
+   char_cnt = strlen(exec);
+   for (i = first_arg; i < argc; i++)
+      char_cnt += strlen(argv[i]);
+   if (char_cnt > MAX_ARGS*MAX_PATH) /* then we ran out of room */
+      error("command line too long -\n%s",new_cmdline);
+   
+   strcpy(new_cmdline,exec);
+   for (i = first_arg; i < argc; i++)
+   {
+      strcat(new_cmdline," ");
+      strcat(new_cmdline,argv[i]);
+   }
+   return retval;
+}
+/* process exec_arg : if it
+ * NATIVE:
+ *  1) starts with '\\' or '/', it's a root-path and leave it alone
+ *  2) starts with 'x:\\' or 'x:/', it's a root-path and leave it alone
+ *  3) starts with '.\\' or './', two possible meanings:
+ *       1) exec is in the current directory
+ *       2) exec in same directory as this program
+ *  4) otherwise, search path (and _prepend_ "." to the path!!!)
+ *  5) convert all '/' to '\\'
+ * CYGWIN
+ *  1) starts with '\\' or '/', it's a root-path and leave it alone
+ *  2) starts with 'x:\\' or 'x:/', it's a root-path and leave it alone
+ *  3) starts with '.\\' or './', two possible meanings:
+ *       1) exec is in the current directory
+ *       2) exec in same directory as this program
+ *  4) otherwise, search path (and _prepend_ "." to the path!!!)
+ *  5) convert to cygwin-style path to resolve symlinks within the pathspec
+ *  6) check filename: if it's a symlink, resolve it by peeking inside
+ *  7) convert to win32-style path+filename since we're using Windows 
+ *       createProcess() to launch
+ */
+void process_execname(char *exec, const char* execname,const char* execpath )
+{
+   char* orig_pathlist;
+   char* pathlist;
+   char exec_tmp[MAX_PATH + FILENAME_MAX + 100];
+   char exec_tmp2[MAX_PATH + FILENAME_MAX + 100];
+   char buf[MAX_PATH + FILENAME_MAX + 100];
+   int i,j;
+
+   int len = 0;
+   /* 
+    * STARTS WITH / or \ 
+    * execpath NOT used
+    */
+   if ((execname[0] == '\\') || (execname[0] == '/'))
+   {
+#if defined(__CYGWIN__)
+      strcpy(exec_tmp,execname);
+#else    
+      exec_tmp[0] = ((char) (_getdrive() + ((int) 'A') - 1));
+      exec_tmp[1] = ':';
+      exec_tmp[2] = '\0';
+      strcat(exec_tmp,execname);
+#endif
+      Trace(("/ -\nexec_tmp\t%s\nexecname\t%s\nexecpath\t%s\n",
+             exec_tmp,execname,execpath));
+      if (! fileExistsMulti(exec_tmp2,NULL,exec_tmp,exts,NUM_EXTENSIONS) )
+      {
+          j = 0;
+          for (i = 0; i < NUM_EXTENSIONS; i++)
+              j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]);
+          error("Couldn't locate %s\nI tried appending the following "
+                "extensions: \n%s",exec_tmp,buf);
+      }
+      Trace((exec_tmp2));
+   }
+   /* 
+    * STARTS WITH x:\ or x:/
+    * execpath NOT used
+    */
+    else if ((strlen(execname) > 3) && // avoid boundary errors
+       (execname[1] == ':') &&
+       ((execname[2] == '\\') || (execname[2] == '/')))
+   {
+      strcpy(exec_tmp,execname);       
+      Trace(("x: -\nexec_tmp\t%s\nexecname\t%s\nexecpath\t%s\n",
+             exec_tmp,execname,execpath));
+      if (! fileExistsMulti(exec_tmp2,NULL,exec_tmp,exts,NUM_EXTENSIONS) )
+      {
+          j = 0;
+          for (i = 0; i < NUM_EXTENSIONS; i++)
+              j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]);
+          error("Couldn't locate %s\nI tried appending the following "
+                "extensions: \n%s",exec_tmp,buf);
+      }
+      Trace((exec_tmp2));
+   }
+   /* 
+    * STARTS WITH ./ or .\
+    */
+   else if ((execname[0] == '.') &&
+            ((execname[1] == '\\') || (execname[1] == '/')))
+   {
+      if (((char*) getcwd(exec_tmp,MAX_PATH))==NULL)
+         error("can't find current working directory");
+      if (! fileExistsMulti(exec_tmp2,exec_tmp,&(execname[2]),
+                            exts,NUM_EXTENSIONS) )
+          if (! fileExistsMulti(exec_tmp2,execpath,&(execname[2]),
+                                exts,NUM_EXTENSIONS) )
+          {
+              j = 0;
+              for (i = 0; i < NUM_EXTENSIONS; i++)
+                  j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]);
+              error("Couldn't locate %s\n"
+                    "I looked in the following directories:\n [1]: %s\n [2]: %s\n"
+                    "I also tried appending the following "
+                    "extensions: \n%s",execname,exec_tmp,execpath,buf);
+          }
+      Trace((exec_tmp2));
+   }
+   /*
+    * OTHERWISE, SEARCH PATH (prepend '.' and run.exe's directory)
+    * can't use fileExistsMulti because we want to search entire path
+    * for exts[0], then for exts[1], etc.
+    */
+   else
+   {
+      orig_pathlist = getenv("PATH");
+      if ((pathlist = malloc (strlen(orig_pathlist)
+                              + strlen(".") 
+                              + strlen(execpath)+ 3)) == NULL)
+         error("internal error - out of memory");
+      strcpy(pathlist,".");
+      strcat(pathlist,SEP_CHARS);
+      strcat(pathlist,execpath);
+      strcat(pathlist,SEP_CHARS);
+      strcat(pathlist,orig_pathlist);
+
+      Trace((pathlist));
+      for (i = 0; i < NUM_EXTENSIONS; i++)
+      {
+          strcpy(exec_tmp,execname);
+          strcat(exec_tmp,exts[i]);
+          pfopen(exec_tmp2,exec_tmp,pathlist);
+          if (fileExists(NULL,NULL,exec_tmp2))
+              break;
+          exec_tmp2[0] = '\0';
+      }
+      Trace(("exec_tmp\t%s\npathlist\t%s\n",exec_tmp2,pathlist));
+
+      free(pathlist);
+      if (exec_tmp2[0] == '\0')
+      {
+          j = 0;
+          for (i = 0; i < NUM_EXTENSIONS; i++)
+              j += sprintf(buf + j," [%d]: %s\n",i+1,exts[i]);
+          error("Couldn't find %s anywhere.\n"
+                "I even looked in the PATH \n"
+                "I also tried appending the following "
+                "extensions: \n%s",execname,buf);
+      }
+   }
+/*
+ * At this point, we know that exec_tmp2 contains a filename
+ * and we know that exec_tmp2 exists.
+ */
+#if defined(__CYGWIN__)
+   {
+      struct stat stbuf;
+      char sym_link_name[MAX_PATH+1];
+      char real_name[MAX_PATH+1];
+      char dummy[MAX_PATH+1];
+
+      strcpy(exec_tmp,exec_tmp2);
+
+      CYGWIN_CONV_TO_POSIX_PATH((exec_tmp,sym_link_name));
+      Trace((sym_link_name));
+      
+      if (lstat(sym_link_name, &stbuf) == 0)
+      {
+         if ((stbuf.st_mode & S_IFLNK) == S_IFLNK)
+         {
+	    if (readlink(sym_link_name, real_name, sizeof(real_name)) == -1)
+               error("problem reading symbolic link for %s",exec_tmp);
+            else
+            {
+                // if realname starts with '/' it's a rootpath 
+                if (real_name[0] == '/')
+                    strcpy(exec_tmp2,real_name);
+                else // otherwise, it's relative to the symlink's location
+                {
+                   CYGWIN_SPLIT_PATH((sym_link_name,exec_tmp2,dummy));
+                   if (!endsWith(exec_tmp2,PATH_SEP_CHAR_STR))
+                      strcat(exec_tmp2,PATH_SEP_CHAR_STR);
+                   strcat(exec_tmp2,real_name);
+                }
+            }
+         }
+         else /* NOT a symlink */
+            strcpy(exec_tmp2, sym_link_name);
+      }
+      else
+         error("can't locate executable - %s",sym_link_name);
+   }
+   CYGWIN_CONV_TO_FULL_WIN32_PATH((exec_tmp2,exec));
+#else					
+   strcpy (exec, exec_tmp2);
+#endif  
+}
+int endsWith(const char* s1, const char* s2)
+{
+    int len1;
+    int len2;
+    int retval = FALSE;
+    len1 = strlen(s1);
+    len2 = strlen(s2);
+    if (len1 - len2 >= 0)
+        if (stricmp(&(s1[len1-len2]),s2) == 0)
+            retval = TRUE;
+    return retval;
+}void strip_exe(char* s)
+{
+   if ((strlen(s) > 4) && // long enough to have .exe extension
+       // second part not evaluated (short circuit) if exec_arg too short
+       (stricmp(&(s[strlen(s)-4]),".exe") == 0))
+      s[strlen(s)-4] = '\0';
+}
+void error(char* fmt, ...)
+{
+   char buf[4096];
+   int j;
+   va_list args;
+   va_start(args, fmt);
+   j =   sprintf(buf,    "Error: ");
+   j += vsprintf(buf + j,fmt,args);
+   j +=  sprintf(buf + j,"\n");
+   va_end(args);
+   MessageBox(NULL, buf, "Run.exe", MB_ICONSTOP);
+   exit(1);
+}
+void message(char* fmt, ...)
+{
+   char buf[10000];
+   int j;
+   va_list args;
+   va_start(args, fmt);
+   j = vsprintf(buf,fmt,args);
+   j +=  sprintf(buf + j,"\n");
+   va_end(args);
+   MessageBox(NULL, buf, "Run.exe Message", MB_ICONSTOP);
+}
+void Trace_(char* fmt, ...)
+{
+   char buf[10000];
+   int j;
+   va_list args;
+   va_start(args, fmt);
+   j = vsprintf(buf,fmt,args);
+   j +=  sprintf(buf + j,"\n");
+   va_end(args);
+   MessageBox(NULL, buf, "Run.exe DEBUG", MB_ICONSTOP);
+}
+/*
+ * Uses system info to determine the path used to invoke run
+ * Also attempts to deduce the target execname if "compact_invocation"
+ * method was used.
+ *
+ * returns TRUE if compact_invocation method was used
+ *   (and target execname was deduced successfully)
+ * otherwise returns FALSE, and execname == run or run.exe
+ */
+int get_exec_name_and_path(char* execname, char* execpath)
+{
+   char modname[MAX_PATH];
+   char* tmp_execname;
+   char* p;
+   int retval = FALSE;
+
+   if (!GetModuleFileName (NULL, modname, MAX_PATH))
+      error("internal error - can't find my own name");
+   if ((p = strrchr (modname, '\\')) == NULL)
+      error("internal error - my own name has no path\n%s",modname);
+   tmp_execname = p + 1;
+   p[0] = '\0';
+   // if invoked by a name like "runxemacs" then strip off
+   // the "run" and let "xemacs" be execname.
+   // To check for this, make that:
+   //   1) first three chars are "run"
+   //   2) but the string doesn't end there, or start ".exe"
+   // Also, set "compact_invocation" TRUE
+   if ( ((tmp_execname[0] == 'r') || (tmp_execname[0] == 'R')) &&
+        ((tmp_execname[1] == 'u') || (tmp_execname[1] == 'U')) &&
+        ((tmp_execname[2] == 'n') || (tmp_execname[2] == 'N')) &&
+        ((tmp_execname[3] != '.') && (tmp_execname[3] != '\0')) )
+   {
+      tmp_execname += 3;
+      retval = TRUE;
+   }
+   else
+      tmp_execname = NULL;
+
+   if (tmp_execname == NULL)
+      strcpy(execname,"");
+   else
+      strcpy(execname,tmp_execname);
+#if defined(__CYGWIN__)
+   CYGWIN_CONV_TO_POSIX_PATH((modname,execpath));
+#else
+   strcpy(execpath,modname);
+#endif
+   return retval;
+}
+/*
+ * works like strtok, but:
+ * double quotes (") suspends tokenizing until closing " reached
+ * CYGWIN ONLY:
+ *   additionally, backslash escapes next character, even if that
+ *   next character is a delimiter. Or a double quote.
+ *   WARNING: this means that backslash may NOT be a delimiter 
+ */
+char* my_strtok(char* s, const char* delim, char** lasts)
+{
+   char *spanp;
+   int c, sc;
+   char *tok;
+   
+   if ((s == NULL) && ((s = *lasts) == NULL))
+      return NULL;
+   /* Skip leading delimiters */
+cont:
+   c = *s++;
+   for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
+      if (c == sc)
+         goto cont;
+   }
+   if (c == 0) {		/* no non-delimiter characters */
+      *lasts = NULL;
+      return (NULL);
+   }
+   tok = s - 1;
+   /*
+    * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+    * Note that delim must have one NUL; we stop if we see that, too.
+    * If we see a double quote, continue until next double quote, then
+    *   start scanning for delimiters again.
+    * CYGWIN ONLY: if we see a backslash, just copy next character -
+    *   don't consider it as a delimiter even if it is in delim string.
+    */
+   for (;;) {
+      /* if this c is ", then scan until we find next " */
+      if (c == '\"')
+         while ((c = *s++) != '\"')
+            if (c == 0) /* oops, forgot to close the ", clean up & return */
+            {
+               s = NULL;
+               *lasts = s;
+               return (tok);
+            }
+#if defined(__CYGWIN__)
+      if (c == '\\')
+      {
+         c = *s++; /* skip the backslash */
+         if (c == 0) /* if escaped character is end-of-string, clean up & return */
+         {
+            s = NULL;
+            *lasts = s;
+            return (tok);
+         }
+         c = *s++; /* otherwise, skip the escaped character */
+      }
+#endif   
+      spanp = (char *)delim;
+      do {
+         if ((sc = *spanp++) == c) {
+            if (c == 0)
+               s = NULL;
+            else
+               s[-1] = 0;
+            *lasts = s;
+            return (tok);
+         }
+      } while (sc != 0);
+      c = *s++;
+   }
+   /* NOTREACHED */
+}
+int parse_cmdline_to_arg_array(char* argv[MAX_ARGS], char* cmdline)
+{
+   char seps[] = " \t\n";
+   char* token;
+   int argc = 0;
+   char* lasts;
+
+   token = my_strtok(cmdline, seps, &lasts);
+   while ((token != NULL) && (argc < MAX_ARGS))
+   {
+      if ((argv[argc] = malloc(strlen(token)+1)) == NULL)
+      {
+         error("internal error - out of memory");
+      }
+      strcpy(argv[argc++],token);
+      token = my_strtok(NULL,seps,&lasts);
+   }
+   if (argc >= MAX_ARGS)
+      error("too many arguments on commandline\n%s",cmdline);
+   return argc;
+}
+/* Taken from pfopen.c by David Engel (5-Jul-97).
+ * Original comments appear below. Superseded by next comment block.
+ *
+ *  Written and released to the public domain by David Engel.
+ *
+ *  This function attempts to open a file which may be in any of
+ *  several directories.  It is particularly useful for opening
+ *  configuration files.  For example, PROG.EXE can easily open
+ *  PROG.CFG (which is kept in the same directory) by executing:
+ *
+ *      cfg_file = pfopen("PROG.CFG", "r", getenv("PATH"));
+ *
+ *  NULL is returned if the file can't be opened.
+ */
+
+/*
+ * This function attempts to locate a file which may be in any of
+ * several directories. Unlike the original pfopen, it does not
+ * return a FILE pointer to the opened file, but rather returns
+ * the fully-qualified filename of the first match found. Returns
+ * empty string if not found.
+ */
+char *pfopen(char *retval, const char *name, const char *dirs)
+{
+    char *ptr;
+    char *tdirs;
+    char returnval[MAX_PATH + FILENAME_MAX + 100];
+    char *recursive_name;
+    int foundit = FALSE;
+    
+    returnval[0] = '\0';
+
+    if (dirs == NULL || dirs[0] == '\0')
+        return NULL;
+
+    if ((tdirs = malloc(strlen(dirs)+1)) == NULL)
+        return NULL;
+
+    strcpy(tdirs, dirs);
+
+    for (ptr = strtok(tdirs, SEP_CHARS); (foundit == FALSE) && ptr != NULL;
+         ptr = strtok(NULL, SEP_CHARS))
+    {
+       foundit = fileExists(returnval,ptr,name);
+    }
+
+    free(tdirs);
+    if (!foundit)
+        retval[0] = '\0';
+    else
+        strcpy(retval,returnval);
+    return retval;
+}
+int fileExistsMulti(char* fullname, const char* path, 
+                    const char* name_noext, const char* exts[],
+                    const int extcnt)
+{
+    char tryName[MAX_PATH + FILENAME_MAX];
+    int i = 0;
+    int retval = FALSE;
+    fullname[0] = '\0';
+    for (i = 0; i < extcnt; i++)
+    {
+        strcpy(tryName,name_noext);
+        strcat(tryName,exts[i]);
+        if (fileExists(fullname, path, tryName) == TRUE)
+        {
+            retval = TRUE;
+            break;
+        }
+        fullname[0] = '\0';
+    }
+    return retval;
+}
+int fileExists(char* fullname, const char* path, const char* name)
+{
+   int retval = FALSE;
+   FILE* file;
+   size_t len;
+   char work[FILENAME_MAX];
+   char work2[MAX_PATH + FILENAME_MAX + 100];
+   if (path != NULL)
+   {
+      strcpy(work, path);
+      len = strlen(work);
+      if (len && work[len-1] != '/' && work[len-1] != '\\')
+         strcat(work, PATH_SEP_CHAR_STR);
+   }
+   else
+      work[0]='\0';
+   
+   strcat(work, name);
+#if defined(__CYGWIN__)
+   CYGWIN_CONV_TO_POSIX_PATH((work, work2)); 
+#else
+   strcpy(work2,work);
+#endif
+
+#ifdef DEBUGALL
+   Trace(("looking for...\t%s\n",work2));
+#endif
+
+   file = fopen(work2, "rb");
+   if (file != NULL)
+   {
+      if (fullname != NULL)
+         strcpy(fullname,work2);
+      retval = TRUE;
+      fclose(file);
+   }
+   return retval;
+}
diff --git a/nt/minitar.mak b/nt/minitar.mak
new file mode 100644
index 0000000..6218f56
--- /dev/null
+++ b/nt/minitar.mak
@@ -0,0 +1,10 @@
+ZLIB=\path\to\zlib
+
+all: minitar.exe
+
+minitar.exe: minitar.obj
+	cl -o minitar.exe minitar.obj $(ZLIB)\zlib.lib
+
+minitar.obj: minitar.c
+	cl -c minitar.c -I $(ZLIB)
+