dlls/winecrt0/exe_entry.c

   1 /*
   2  * Default entry point for an exe
   3  *
   4  * Copyright 2005 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #if 0
  22 #pragma makedep unix
  23 #endif
  24
  25 #include <stdarg.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winternl.h"
  29
  30 extern int main( int argc, char *argv[] );
  31
  32 static char **build_argv( const char *src, int *ret_argc )
  33 {
  34     char **argv, *arg, *dst;
  35     int argc, in_quotes = 0, bcount = 0, len = strlen(src) + 1;
  36
  37     argc = 2 + len / 2;
  38     argv = HeapAlloc( GetProcessHeap(), 0, argc * sizeof(*argv) + len );
  39     arg = dst = (char *)(argv + argc);
  40     argc = 0;
  41     while (*src)
  42     {
  43         if ((*src == ' ' || *src == '\t') && !in_quotes)
  44         {
  45             /* skip the remaining spaces */
  46             while (*src == ' ' || *src == '\t') src++;
  47             if (!*src) break;
  48             /* close the argument and copy it */
  49             *dst++ = 0;
  50             argv[argc++] = arg;
  51             /* start with a new argument */
  52             arg = dst;
  53             bcount = 0;
  54         }
  55         else if (*src == '\\')
  56         {
  57             *dst++ = *src++;
  58             bcount++;
  59         }
  60         else if (*src == '"')
  61         {
  62             if ((bcount & 1) == 0)
  63             {
  64                 /* Preceded by an even number of '\', this is half that
  65                  * number of '\', plus a '"' which we discard.
  66                  */
  67                 dst -= bcount / 2;
  68                 src++;
  69                 if (in_quotes && *src == '"') *dst++ = *src++;
  70                 else in_quotes = !in_quotes;
  71             }
  72             else
  73             {
  74                 /* Preceded by an odd number of '\', this is half that
  75                  * number of '\' followed by a '"'
  76                  */
  77                 dst -= bcount / 2 + 1;
  78                 *dst++ = *src++;
  79             }
  80             bcount = 0;
  81         }
  82         else  /* a regular character */
  83         {
  84             *dst++ = *src++;
  85             bcount = 0;
  86         }
  87     }
  88     *dst = 0;
  89     argv[argc++] = arg;
  90     argv[argc] = NULL;
  91     *ret_argc = argc;
  92     return argv;
  93 }
  94
  95 DWORD WINAPI DECLSPEC_HIDDEN __wine_spec_exe_entry( PEB *peb )
  96 {
  97     int argc;
  98     char **argv = build_argv( GetCommandLineA(), &argc );
  99
 100     ExitProcess( main( argc, argv ));
 101 }