relay32/builtin32.c

   1 /*
   2  * Win32 builtin functions
   3  *
   4  * Copyright 1997 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <string.h>
  26 #include <stdio.h>
  27 #include <ctype.h>
  28 #include <sys/types.h>
  29 #ifdef HAVE_SYS_MMAN_H
  30 #include <sys/mman.h>
  31 #endif
  32
  33 #include "windef.h"
  34 #include "wine/winbase16.h"
  35 #include "wine/library.h"
  36 #include "module.h"
  37 #include "file.h"
  38 #include "ntdll_misc.h"
  39 #include "wine/server.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(module);
  43 WINE_DECLARE_DEBUG_CHANNEL(relay);
  44
  45 extern void RELAY_SetupDLL( const char *module );
  46
  47 static HMODULE main_module;
  48 static NTSTATUS last_status; /* use to gather all errors in callback */
  49
  50 /***********************************************************************
  51  *           BUILTIN32_dlopen
  52  *
  53  * The loader critical section must be locked while calling this function
  54  */
  55 NTSTATUS BUILTIN32_dlopen( const char *name, void** handle)
  56 {
  57     char error[256];
  58
  59     last_status = STATUS_SUCCESS;
  60     /* load_library will modify last_status. Note also that load_library can be
  61      * called several times, if the .so file we're loading has dependencies.
  62      * last_status will gather all the errors we may get while loading all these
  63      * libraries
  64      */
  65     if (!(*handle = wine_dll_load( name, error, sizeof(error) )))
  66     {
  67         if (strstr(error, "cannot open") || strstr(error, "open failed") ||
  68             (strstr(error, "Shared object") && strstr(error, "not found"))) {
  69             /* The file does not exist -> WARN() */
  70             WARN("cannot open .so lib for builtin %s: %s\n", name, error);
  71             last_status = STATUS_NO_SUCH_FILE;
  72         } else {
  73             /* ERR() for all other errors (missing functions, ...) */
  74             ERR("failed to load .so lib for builtin %s: %s\n", name, error );
  75             last_status = STATUS_PROCEDURE_NOT_FOUND;
  76         }
  77     }
  78     return last_status;
  79 }
  80
  81
  82 /***********************************************************************
  83  *           load_library
  84  *
  85  * Load a library in memory; callback function for wine_dll_register
  86  */
  87 static void load_library( void *base, const char *filename )
  88 {
  89     UNICODE_STRING      wstr;
  90     HMODULE module = (HMODULE)base, ret;
  91     IMAGE_NT_HEADERS *nt;
  92     WINE_MODREF *wm;
  93     char *fullname;
  94     DWORD len;
  95
  96     if (!base)
  97     {
  98         ERR("could not map image for %s\n", filename ? filename : "main exe" );
  99         return;
 100     }
 101     if (!(nt = RtlImageNtHeader( module )))
 102     {
 103         ERR( "bad module for %s\n", filename ? filename : "main exe" );
 104         last_status = STATUS_INVALID_IMAGE_FORMAT;
 105         return;
 106     }
 107
 108     if (!(nt->FileHeader.Characteristics & IMAGE_FILE_DLL))
 109     {
 110         /* if we already have an executable, ignore this one */
 111         if (!main_module) main_module = module;
 112         return; /* don't create the modref here, will be done later on */
 113     }
 114
 115     RtlCreateUnicodeStringFromAsciiz(&wstr, filename);
 116     if (LdrGetDllHandle(0, 0, &wstr, &ret) == STATUS_SUCCESS)
 117         MESSAGE( "Warning: loading builtin %s, but native version already present. "
 118                  "Expect trouble.\n", filename );
 119     RtlFreeUnicodeString( &wstr );
 120
 121     len = GetSystemDirectoryA( NULL, 0 );
 122     if (!(fullname = RtlAllocateHeap( ntdll_get_process_heap(), 0, len + strlen(filename) + 1 )))
 123     {
 124         ERR( "can't load %s\n", filename );
 125         last_status = STATUS_NO_MEMORY;
 126         return;
 127     }
 128     GetSystemDirectoryA( fullname, len );
 129     strcat( fullname, "\\" );
 130     strcat( fullname, filename );
 131
 132     /* Create 32-bit MODREF */
 133     if (!(wm = PE_CreateModule( module, fullname, 0, 0, TRUE )))
 134     {
 135         ERR( "can't load %s\n", filename );
 136         RtlFreeHeap( ntdll_get_process_heap(), 0, fullname );
 137         last_status = STATUS_NO_MEMORY;
 138         return;
 139     }
 140     TRACE( "loaded %s %p %p\n", fullname, wm, module );
 141     RtlFreeHeap( ntdll_get_process_heap(), 0, fullname );
 142
 143     /* setup relay debugging entry points */
 144     if (TRACE_ON(relay)) RELAY_SetupDLL( (void *)module );
 145 }
 146
 147
 148 /***********************************************************************
 149  *           BUILTIN32_LoadLibraryExA
 150  *
 151  * Partly copied from the original PE_ version.
 152  *
 153  */
 154 NTSTATUS BUILTIN32_LoadLibraryExA(LPCSTR path, DWORD flags, WINE_MODREF** pwm)
 155 {
 156     char dllname[20], *p;
 157     LPCSTR name;
 158     void *handle;
 159     NTSTATUS nts;
 160
 161     /* Fix the name in case we have a full path and extension */
 162     name = path;
 163     if ((p = strrchr( name, '\\' ))) name = p + 1;
 164     if ((p = strrchr( name, '/' ))) name = p + 1;
 165
 166     if (strlen(name) >= sizeof(dllname)-4) return STATUS_NO_SUCH_FILE;
 167
 168     strcpy( dllname, name );
 169     p = strrchr( dllname, '.' );
 170     if (!p) strcat( dllname, ".dll" );
 171     for (p = dllname; *p; p++) *p = FILE_tolower(*p);
 172
 173     if ((nts = BUILTIN32_dlopen( dllname, &handle )) != STATUS_SUCCESS)
 174         return nts;
 175
 176     if (!((*pwm) = MODULE_FindModule( path ))) *pwm = MODULE_FindModule( dllname );
 177     if (!*pwm)
 178     {
 179         ERR( "loaded .so but dll %s still not found - 16-bit dll or version conflict.\n", dllname );
 180         /* wine_dll_unload( handle );*/
 181         return STATUS_INVALID_IMAGE_FORMAT;
 182     }
 183     (*pwm)->dlhandle = handle;
 184     return STATUS_SUCCESS;
 185 }
 186
 187 /***********************************************************************
 188  *           BUILTIN32_Init
 189  *
 190  * Initialize loading callbacks and return HMODULE of main exe.
 191  * 'main' is the main exe in case it was already loaded from a PE file.
 192  */
 193 HMODULE BUILTIN32_LoadExeModule( HMODULE main )
 194 {
 195     main_module = main;
 196     last_status = STATUS_SUCCESS;
 197     wine_dll_set_callback( load_library );
 198     if (!main_module)
 199         MESSAGE( "No built-in EXE module loaded!  Did you create a .spec file?\n" );
 200     if (last_status != STATUS_SUCCESS)
 201         MESSAGE( "Error while processing initial modules\n");
 202
 203     return main_module;
 204 }