/* * NE modules * * Copyright 1995 Alexandre Julliard */ #include #include #include #include #include #include "wine/winbase16.h" #include "winerror.h" #include "module.h" #include "neexe.h" #include "peexe.h" #include "toolhelp.h" #include "file.h" #include "ldt.h" #include "callback.h" #include "heap.h" #include "task.h" #include "global.h" #include "process.h" #include "toolhelp.h" #include "snoop.h" #include "stackframe.h" #include "debug.h" #include "file.h" FARPROC16 (*fnSNOOP16_GetProcAddress16)(HMODULE16,DWORD,FARPROC16) = NULL; void (*fnSNOOP16_RegisterDLL)(NE_MODULE*,LPCSTR) = NULL; #define hFirstModule (pThhook->hExeHead) static NE_MODULE *pCachedModule = 0; /* Module cached by NE_OpenFile */ static HMODULE16 GetModuleFromPath(LPCSTR name); static HMODULE16 NE_LoadBuiltin(LPCSTR name,BOOL force) { return 0; } HMODULE16 (*fnBUILTIN_LoadModule)(LPCSTR name,BOOL force) = NE_LoadBuiltin; /*********************************************************************** * NE_GetPtr */ NE_MODULE *NE_GetPtr( HMODULE16 hModule ) { return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) ); } /*********************************************************************** * NE_DumpModule */ void NE_DumpModule( HMODULE16 hModule ) { int i, ordinal; SEGTABLEENTRY *pSeg; BYTE *pstr; WORD *pword; NE_MODULE *pModule; if (!(pModule = NE_GetPtr( hModule ))) { MSG( "**** %04x is not a module handle\n", hModule ); return; } /* Dump the module info */ DUMP( "---\n" ); DUMP( "Module %04x:\n", hModule ); DUMP( "count=%d flags=%04x heap=%d stack=%d\n", pModule->count, pModule->flags, pModule->heap_size, pModule->stack_size ); DUMP( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n", pModule->cs, pModule->ip, pModule->ss, pModule->sp, pModule->dgroup, pModule->seg_count, pModule->modref_count ); DUMP( "os_flags=%d swap_area=%d version=%04x\n", pModule->os_flags, pModule->min_swap_area, pModule->expected_version ); if (pModule->flags & NE_FFLAGS_WIN32) DUMP( "PE module=%08x\n", pModule->module32 ); /* Dump the file info */ DUMP( "---\n" ); DUMP( "Filename: '%s'\n", NE_MODULE_NAME(pModule) ); /* Dump the segment table */ DUMP( "---\n" ); DUMP( "Segment table:\n" ); pSeg = NE_SEG_TABLE( pModule ); for (i = 0; i < pModule->seg_count; i++, pSeg++) DUMP( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n", i + 1, pSeg->filepos, pSeg->size, pSeg->flags, pSeg->minsize, pSeg->hSeg ); /* Dump the resource table */ DUMP( "---\n" ); DUMP( "Resource table:\n" ); if (pModule->res_table) { pword = (WORD *)((BYTE *)pModule + pModule->res_table); DUMP( "Alignment: %d\n", *pword++ ); while (*pword) { struct resource_typeinfo_s *ptr = (struct resource_typeinfo_s *)pword; struct resource_nameinfo_s *pname = (struct resource_nameinfo_s *)(ptr + 1); DUMP( "id=%04x count=%d\n", ptr->type_id, ptr->count ); for (i = 0; i < ptr->count; i++, pname++) DUMP( "offset=%d len=%d id=%04x\n", pname->offset, pname->length, pname->id ); pword = (WORD *)pname; } } else DUMP( "None\n" ); /* Dump the resident name table */ DUMP( "---\n" ); DUMP( "Resident-name table:\n" ); pstr = (char *)pModule + pModule->name_table; while (*pstr) { DUMP( "%*.*s: %d\n", *pstr, *pstr, pstr + 1, *(WORD *)(pstr + *pstr + 1) ); pstr += *pstr + 1 + sizeof(WORD); } /* Dump the module reference table */ DUMP( "---\n" ); DUMP( "Module ref table:\n" ); if (pModule->modref_table) { pword = (WORD *)((BYTE *)pModule + pModule->modref_table); for (i = 0; i < pModule->modref_count; i++, pword++) { char name[10]; GetModuleName16( *pword, name, sizeof(name) ); DUMP( "%d: %04x -> '%s'\n", i, *pword, name ); } } else DUMP( "None\n" ); /* Dump the entry table */ DUMP( "---\n" ); DUMP( "Entry table:\n" ); pstr = (char *)pModule + pModule->entry_table; ordinal = 1; while (*pstr) { DUMP( "Bundle %d-%d: %02x\n", ordinal, ordinal + *pstr - 1, pstr[1]); if (!pstr[1]) { ordinal += *pstr; pstr += 2; } else if ((BYTE)pstr[1] == 0xff) /* moveable */ { i = *pstr; pstr += 2; while (i--) { DUMP( "%d: %02x:%04x (moveable)\n", ordinal++, pstr[3], *(WORD *)(pstr + 4) ); pstr += 6; } } else /* fixed */ { i = *pstr; pstr += 2; while (i--) { DUMP( "%d: %04x (fixed)\n", ordinal++, *(WORD *)(pstr + 1) ); pstr += 3; } } } /* Dump the non-resident names table */ DUMP( "---\n" ); DUMP( "Non-resident names table:\n" ); if (pModule->nrname_handle) { pstr = (char *)GlobalLock16( pModule->nrname_handle ); while (*pstr) { DUMP( "%*.*s: %d\n", *pstr, *pstr, pstr + 1, *(WORD *)(pstr + *pstr + 1) ); pstr += *pstr + 1 + sizeof(WORD); } } DUMP( "\n" ); } /*********************************************************************** * NE_WalkModules * * Walk the module list and print the modules. */ void NE_WalkModules(void) { HMODULE16 hModule = hFirstModule; MSG( "Module Flags Name\n" ); while (hModule) { NE_MODULE *pModule = NE_GetPtr( hModule ); if (!pModule) { MSG( "Bad module %04x in list\n", hModule ); return; } MSG( " %04x %04x %.*s\n", hModule, pModule->flags, *((char *)pModule + pModule->name_table), (char *)pModule + pModule->name_table + 1 ); hModule = pModule->next; } } /********************************************************************** * NE_RegisterModule */ void NE_RegisterModule( NE_MODULE *pModule ) { pModule->next = hFirstModule; hFirstModule = pModule->self; } /*********************************************************************** * NE_GetOrdinal * * Lookup the ordinal for a given name. */ WORD NE_GetOrdinal( HMODULE16 hModule, const char *name ) { unsigned char buffer[256], *cpnt; BYTE len; NE_MODULE *pModule; if (!(pModule = NE_GetPtr( hModule ))) return 0; assert( !(pModule->flags & NE_FFLAGS_WIN32) ); TRACE( module, "(%04x,'%s')\n", hModule, name ); /* First handle names of the form '#xxxx' */ if (name[0] == '#') return atoi( name + 1 ); /* Now copy and uppercase the string */ strcpy( buffer, name ); CharUpperA( buffer ); len = strlen( buffer ); /* First search the resident names */ cpnt = (char *)pModule + pModule->name_table; /* Skip the first entry (module name) */ cpnt += *cpnt + 1 + sizeof(WORD); while (*cpnt) { if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len )) { TRACE(module, " Found: ordinal=%d\n", *(WORD *)(cpnt + *cpnt + 1) ); return *(WORD *)(cpnt + *cpnt + 1); } cpnt += *cpnt + 1 + sizeof(WORD); } /* Now search the non-resident names table */ if (!pModule->nrname_handle) return 0; /* No non-resident table */ cpnt = (char *)GlobalLock16( pModule->nrname_handle ); /* Skip the first entry (module description string) */ cpnt += *cpnt + 1 + sizeof(WORD); while (*cpnt) { if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len )) { TRACE(module, " Found: ordinal=%d\n", *(WORD *)(cpnt + *cpnt + 1) ); return *(WORD *)(cpnt + *cpnt + 1); } cpnt += *cpnt + 1 + sizeof(WORD); } return 0; } /*********************************************************************** * NE_GetEntryPoint (WPROCS.27) * * Return the entry point for a given ordinal. */ FARPROC16 NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal ) { return NE_GetEntryPointEx( hModule, ordinal, TRUE ); } FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop ) { NE_MODULE *pModule; WORD curOrdinal = 1; BYTE *p; WORD sel, offset; if (!(pModule = NE_GetPtr( hModule ))) return 0; assert( !(pModule->flags & NE_FFLAGS_WIN32) ); p = (BYTE *)pModule + pModule->entry_table; while (*p && (curOrdinal + *p <= ordinal)) { /* Skipping this bundle */ curOrdinal += *p; switch(p[1]) { case 0: p += 2; break; /* unused */ case 0xff: p += 2 + *p * 6; break; /* moveable */ default: p += 2 + *p * 3; break; /* fixed */ } } if (!*p) return 0; switch(p[1]) { case 0: /* unused */ return 0; case 0xff: /* moveable */ p += 2 + 6 * (ordinal - curOrdinal); sel = p[3]; offset = *(WORD *)(p + 4); break; default: /* fixed */ sel = p[1]; p += 2 + 3 * (ordinal - curOrdinal); offset = *(WORD *)(p + 1); break; } if (sel == 0xfe) sel = 0xffff; /* constant entry */ else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg); if (sel==0xffff) return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset ); if (!snoop || !fnSNOOP16_GetProcAddress16) return (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset ); else return (FARPROC16)fnSNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)PTR_SEG_OFF_TO_SEGPTR( sel, offset )); } /*********************************************************************** * NE_SetEntryPoint * * Change the value of an entry point. Use with caution! * It can only change the offset value, not the selector. */ BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset ) { NE_MODULE *pModule; WORD curOrdinal = 1; BYTE *p; if (!(pModule = NE_GetPtr( hModule ))) return FALSE; assert( !(pModule->flags & NE_FFLAGS_WIN32) ); p = (BYTE *)pModule + pModule->entry_table; while (*p && (curOrdinal + *p <= ordinal)) { /* Skipping this bundle */ curOrdinal += *p; switch(p[1]) { case 0: p += 2; break; /* unused */ case 0xff: p += 2 + *p * 6; break; /* moveable */ default: p += 2 + *p * 3; break; /* fixed */ } } if (!*p) return FALSE; switch(p[1]) { case 0: /* unused */ return FALSE; case 0xff: /* moveable */ p += 2 + 6 * (ordinal - curOrdinal); *(WORD *)(p + 4) = offset; break; default: /* fixed */ p += 2 + 3 * (ordinal - curOrdinal); *(WORD *)(p + 1) = offset; break; } return TRUE; } /*********************************************************************** * NE_OpenFile */ HANDLE NE_OpenFile( NE_MODULE *pModule ) { char *name; static HANDLE cachedfd = -1; TRACE( module, "(%p) cache: mod=%p fd=%d\n", pModule, pCachedModule, cachedfd ); if (pCachedModule == pModule) return cachedfd; CloseHandle( cachedfd ); pCachedModule = pModule; name = NE_MODULE_NAME( pModule ); if ((cachedfd = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, -1 )) == -1) MSG( "Can't open file '%s' for module %04x\n", name, pModule->self ); else /* FIXME: should not be necessary */ cachedfd = ConvertToGlobalHandle(cachedfd); TRACE(module, "opened '%s' -> %d\n", name, cachedfd ); return cachedfd; } /*********************************************************************** * NE_LoadExeHeader */ static HMODULE16 NE_LoadExeHeader( HFILE16 hFile, OFSTRUCT *ofs ) { IMAGE_DOS_HEADER mz_header; IMAGE_OS2_HEADER ne_header; int size; HMODULE16 hModule; NE_MODULE *pModule; BYTE *pData; char *buffer, *fastload = NULL; int fastload_offset = 0, fastload_length = 0; /* Read a block from either the file or the fast-load area. */ #define READ(offset,size,buffer) \ ((fastload && ((offset) >= fastload_offset) && \ ((offset)+(size) <= fastload_offset+fastload_length)) ? \ (memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \ (_llseek16( hFile, (offset), SEEK_SET), \ _hread16( hFile, (buffer), (size) ) == (size))) _llseek16( hFile, 0, SEEK_SET ); if ((_hread16(hFile,&mz_header,sizeof(mz_header)) != sizeof(mz_header)) || (mz_header.e_magic != IMAGE_DOS_SIGNATURE)) return (HMODULE16)11; /* invalid exe */ _llseek16( hFile, mz_header.e_lfanew, SEEK_SET ); if (_hread16( hFile, &ne_header, sizeof(ne_header) ) != sizeof(ne_header)) return (HMODULE16)11; /* invalid exe */ if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21; /* win32 exe */ if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return (HMODULE16)11; /* invalid exe */ if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) { MSG("Sorry, this is an OS/2 linear executable (LX) file !\n"); return (HMODULE16)12; } /* We now have a valid NE header */ size = sizeof(NE_MODULE) + /* segment table */ ne_header.n_segment_tab * sizeof(SEGTABLEENTRY) + /* resource table */ ne_header.rname_tab_offset - ne_header.resource_tab_offset + /* resident names table */ ne_header.moduleref_tab_offset - ne_header.rname_tab_offset + /* module ref table */ ne_header.n_mod_ref_tab * sizeof(WORD) + /* imported names table */ ne_header.entry_tab_offset - ne_header.iname_tab_offset + /* entry table length */ ne_header.entry_tab_length + /* loaded file info */ sizeof(OFSTRUCT)-sizeof(ofs->szPathName)+strlen(ofs->szPathName)+1; hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size ); if (!hModule) return (HMODULE16)11; /* invalid exe */ FarSetOwner16( hModule, hModule ); pModule = (NE_MODULE *)GlobalLock16( hModule ); memcpy( pModule, &ne_header, sizeof(ne_header) ); pModule->count = 0; /* check *programs* for default minimal stack size */ if ( (!(pModule->flags & NE_FFLAGS_LIBMODULE)) && (pModule->stack_size < 0x1400) ) pModule->stack_size = 0x1400; pModule->module32 = 0; pModule->self = hModule; pModule->self_loading_sel = 0; pData = (BYTE *)(pModule + 1); /* Clear internal Wine flags in case they are set in the EXE file */ pModule->flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32); /* Read the fast-load area */ if (ne_header.additional_flags & NE_AFLAGS_FASTLOAD) { fastload_offset=ne_header.fastload_offset<seg_table = (int)pData - (int)pModule; buffer = HeapAlloc( SystemHeap, 0, ne_header.n_segment_tab * sizeof(struct ne_segment_table_entry_s)); if (buffer) { int i; struct ne_segment_table_entry_s *pSeg; if (!READ( mz_header.e_lfanew + ne_header.segment_tab_offset, ne_header.n_segment_tab * sizeof(struct ne_segment_table_entry_s), buffer )) { HeapFree( SystemHeap, 0, buffer ); if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } pSeg = (struct ne_segment_table_entry_s *)buffer; for (i = ne_header.n_segment_tab; i > 0; i--, pSeg++) { memcpy( pData, pSeg, sizeof(*pSeg) ); pData += sizeof(SEGTABLEENTRY); } HeapFree( SystemHeap, 0, buffer ); } else { if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } /* Get the resource table */ if (ne_header.resource_tab_offset < ne_header.rname_tab_offset) { pModule->res_table = (int)pData - (int)pModule; if (!READ(mz_header.e_lfanew + ne_header.resource_tab_offset, ne_header.rname_tab_offset - ne_header.resource_tab_offset, pData )) return (HMODULE16)11; /* invalid exe */ pData += ne_header.rname_tab_offset - ne_header.resource_tab_offset; NE_InitResourceHandler( hModule ); } else pModule->res_table = 0; /* No resource table */ /* Get the resident names table */ pModule->name_table = (int)pData - (int)pModule; if (!READ( mz_header.e_lfanew + ne_header.rname_tab_offset, ne_header.moduleref_tab_offset - ne_header.rname_tab_offset, pData )) { if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } pData += ne_header.moduleref_tab_offset - ne_header.rname_tab_offset; /* Get the module references table */ if (ne_header.n_mod_ref_tab > 0) { pModule->modref_table = (int)pData - (int)pModule; if (!READ( mz_header.e_lfanew + ne_header.moduleref_tab_offset, ne_header.n_mod_ref_tab * sizeof(WORD), pData )) { if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } pData += ne_header.n_mod_ref_tab * sizeof(WORD); } else pModule->modref_table = 0; /* No module references */ /* Get the imported names table */ pModule->import_table = (int)pData - (int)pModule; if (!READ( mz_header.e_lfanew + ne_header.iname_tab_offset, ne_header.entry_tab_offset - ne_header.iname_tab_offset, pData )) { if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } pData += ne_header.entry_tab_offset - ne_header.iname_tab_offset; /* Get the entry table */ pModule->entry_table = (int)pData - (int)pModule; if (!READ( mz_header.e_lfanew + ne_header.entry_tab_offset, ne_header.entry_tab_length, pData )) { if (fastload) HeapFree( SystemHeap, 0, fastload ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } pData += ne_header.entry_tab_length; /* Store the filename information */ pModule->fileinfo = (int)pData - (int)pModule; size = sizeof(OFSTRUCT)-sizeof(ofs->szPathName)+strlen(ofs->szPathName)+1; memcpy( pData, ofs, size ); ((OFSTRUCT *)pData)->cBytes = size - 1; pData += size; /* Free the fast-load area */ #undef READ if (fastload) HeapFree( SystemHeap, 0, fastload ); /* Get the non-resident names table */ if (ne_header.nrname_tab_length) { pModule->nrname_handle = GLOBAL_Alloc( 0, ne_header.nrname_tab_length, hModule, FALSE, FALSE, FALSE ); if (!pModule->nrname_handle) { GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } buffer = GlobalLock16( pModule->nrname_handle ); _llseek16( hFile, ne_header.nrname_tab_offset, SEEK_SET ); if (_hread16( hFile, buffer, ne_header.nrname_tab_length ) != ne_header.nrname_tab_length) { GlobalFree16( pModule->nrname_handle ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } } else pModule->nrname_handle = 0; /* Allocate a segment for the implicitly-loaded DLLs */ if (pModule->modref_count) { pModule->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT, (pModule->modref_count+1)*sizeof(HMODULE16), hModule, FALSE, FALSE, FALSE ); if (!pModule->dlls_to_init) { if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle ); GlobalFree16( hModule ); return (HMODULE16)11; /* invalid exe */ } } else pModule->dlls_to_init = 0; NE_RegisterModule( pModule ); if (fnSNOOP16_RegisterDLL) fnSNOOP16_RegisterDLL(pModule,ofs->szPathName); return hModule; } /*********************************************************************** * NE_LoadDLLs * * Load all DLLs implicitly linked to a module. */ static BOOL NE_LoadDLLs( NE_MODULE *pModule ) { int i; WORD *pModRef = (WORD *)((char *)pModule + pModule->modref_table); WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init ); for (i = 0; i < pModule->modref_count; i++, pModRef++) { char buffer[260]; BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef; memcpy( buffer, pstr + 1, *pstr ); *(buffer + *pstr) = 0; /* terminate it */ if (!strchr(buffer,'.')) /* only append .dll if no extension yet. handles a request for krnl386.exe*/ strcpy( buffer + *pstr, ".dll" ); TRACE(module, "Loading '%s'\n", buffer ); if (!(*pModRef = GetModuleHandle16( buffer ))) { /* If the DLL is not loaded yet, load it and store */ /* its handle in the list of DLLs to initialize. */ HMODULE16 hDLL; if ((hDLL = NE_LoadModule( buffer, TRUE )) == 2) { /* file not found */ char *p; /* Try with prepending the path of the current module */ GetModuleFileName16( pModule->self, buffer, sizeof(buffer) ); if (!(p = strrchr( buffer, '\\' ))) p = buffer; memcpy( p + 1, pstr + 1, *pstr ); strcpy( p + 1 + *pstr, ".dll" ); hDLL = NE_LoadModule( buffer, TRUE ); } if (hDLL < 32) { /* FIXME: cleanup what was done */ MSG( "Could not load '%s' required by '%.*s', error=%d\n", buffer, *((BYTE*)pModule + pModule->name_table), (char *)pModule + pModule->name_table + 1, hDLL ); return FALSE; } *pModRef = GetExePtr( hDLL ); *pDLLs++ = *pModRef; } else /* Increment the reference count of the DLL */ { NE_MODULE *pOldDLL = NE_GetPtr( *pModRef ); if (pOldDLL) pOldDLL->count++; } } return TRUE; } /********************************************************************** * NE_LoadFileModule * * Load first instance of NE module from file. * (Note: caller is responsible for ensuring the module isn't * already loaded!) */ static HINSTANCE16 NE_LoadFileModule( HFILE16 hFile, OFSTRUCT *ofs, BOOL implicit ) { HINSTANCE16 hInstance; HMODULE16 hModule; NE_MODULE *pModule; /* Create the module structure */ hModule = NE_LoadExeHeader( hFile, ofs ); if (hModule < 32) return hModule; pModule = NE_GetPtr( hModule ); /* Allocate the segments for this module */ if (!NE_CreateSegments( pModule ) || !(hInstance = NE_CreateInstance( pModule, NULL, FALSE ))) { GlobalFreeAll16( hModule ); return 8; /* Insufficient memory */ } /* Load the referenced DLLs */ if (!NE_LoadDLLs( pModule )) return 2; /* File not found (FIXME: free everything) */ /* Load the segments */ NE_LoadAllSegments( pModule ); /* Fixup the functions prologs */ NE_FixupPrologs( pModule ); /* Make sure the usage count is 1 on the first loading of */ /* the module, even if it contains circular DLL references */ pModule->count = 1; /* Call initialization rountines for all loaded DLLs. Note that * when we load implicitly linked DLLs this will be done by InitTask(). */ if (!implicit && (pModule->flags & NE_FFLAGS_LIBMODULE)) NE_InitializeDLLs( hModule ); return hInstance; } /********************************************************************** * NE_LoadModule * * Load first instance of NE module, deciding whether to use * built-in module or load module from file. * (Note: caller is responsible for ensuring the module isn't * already loaded!) */ HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL implicit ) { HINSTANCE16 hInstance; HMODULE16 hModule; HFILE16 hFile; OFSTRUCT ofs; /* Try to load the built-in first if not disabled */ if ((hModule = fnBUILTIN_LoadModule( name, FALSE ))) return hModule; if ((hFile = OpenFile16( name, &ofs, OF_READ )) == HFILE_ERROR16) { /* Now try the built-in even if disabled */ if ((hModule = fnBUILTIN_LoadModule( name, TRUE ))) { MSG( "Could not load Windows DLL '%s', using built-in module.\n", name ); return hModule; } return 2; /* File not found */ } hInstance = NE_LoadFileModule( hFile, &ofs, implicit ); _lclose16( hFile ); return hInstance; } /********************************************************************** * LoadModule16 (KERNEL.45) */ HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock ) { BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1); LOADPARAMS16 *params; LPSTR cmd_line, new_cmd_line; LPCVOID env = NULL; STARTUPINFOA startup; PROCESS_INFORMATION info; HINSTANCE16 hInstance, hPrevInstance = 0; HMODULE16 hModule; NE_MODULE *pModule; PDB *pdb; /* Load module */ if ( (hModule = GetModuleFromPath(name) ) != 0 ) { /* Special case: second instance of an already loaded NE module */ if ( !( pModule = NE_GetPtr( hModule ) ) ) return (HINSTANCE16)11; if ( pModule->module32 ) return (HINSTANCE16)21; hInstance = NE_CreateInstance( pModule, &hPrevInstance, lib_only ); if ( hInstance != hPrevInstance ) /* not a library */ NE_LoadSegment( pModule, pModule->dgroup ); pModule->count++; } else { /* Main case: load first instance of NE module */ if ( (hInstance = NE_LoadModule( name, FALSE )) < 32 ) return hInstance; if ( !(pModule = NE_GetPtr( hInstance )) ) return (HINSTANCE16)11; } /* If library module, we're finished */ if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only ) return hInstance; /* Create a task for this instance */ pModule->flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */ params = (LOADPARAMS16 *)paramBlock; cmd_line = (LPSTR)PTR_SEG_TO_LIN( params->cmdLine ); if (!cmd_line) cmd_line = ""; else if (*cmd_line) cmd_line++; /* skip the length byte */ if (!(new_cmd_line = HeapAlloc( GetProcessHeap(), 0, strlen(cmd_line)+strlen(name)+2 ))) return 0; strcpy( new_cmd_line, name ); strcat( new_cmd_line, " " ); strcat( new_cmd_line, cmd_line ); if (params->hEnvironment) env = GlobalLock16( params->hEnvironment ); memset( &info, '\0', sizeof(info) ); memset( &startup, '\0', sizeof(startup) ); startup.cb = sizeof(startup); if (params->showCmd) { startup.dwFlags = STARTF_USESHOWWINDOW; startup.wShowWindow = ((UINT16 *)PTR_SEG_TO_LIN(params->showCmd))[1]; } pdb = PROCESS_Create( pModule, new_cmd_line, env, hInstance, hPrevInstance, NULL, NULL, TRUE, &startup, &info ); CloseHandle( info.hThread ); CloseHandle( info.hProcess ); if (params->hEnvironment) GlobalUnlock16( params->hEnvironment ); HeapFree( GetProcessHeap(), 0, new_cmd_line ); /* Start task */ if (pdb) TASK_StartTask( pdb->task ); return hInstance; } /********************************************************************** * NE_CreateProcess */ BOOL NE_CreateProcess( HFILE hFile, OFSTRUCT *ofs, LPCSTR cmd_line, LPCSTR env, LPSECURITY_ATTRIBUTES psa, LPSECURITY_ATTRIBUTES tsa, BOOL inherit, LPSTARTUPINFOA startup, LPPROCESS_INFORMATION info ) { HINSTANCE16 hInstance, hPrevInstance = 0; HMODULE16 hModule; NE_MODULE *pModule; HFILE16 hFile16; /* Special case: second instance of an already loaded NE module */ if ( ( hModule = GetModuleFromPath( ofs->szPathName ) ) != 0 ) { if ( !( pModule = NE_GetPtr( hModule) ) || ( pModule->flags & NE_FFLAGS_LIBMODULE ) || pModule->module32 ) { SetLastError( ERROR_BAD_FORMAT ); return FALSE; } hInstance = NE_CreateInstance( pModule, &hPrevInstance, FALSE ); if ( hInstance != hPrevInstance ) /* not a library */ NE_LoadSegment( pModule, pModule->dgroup ); pModule->count++; } /* Main case: load first instance of NE module */ else { /* If we didn't get a file handle, return */ if ( hFile == HFILE_ERROR ) return FALSE; /* Allocate temporary HFILE16 for NE_LoadFileModule */ if (!DuplicateHandle( GetCurrentProcess(), hFile, GetCurrentProcess(), &hFile, 0, FALSE, DUPLICATE_SAME_ACCESS )) { SetLastError( ERROR_INVALID_HANDLE ); return FALSE; } hFile16 = FILE_AllocDosHandle( hFile ); /* Load module */ hInstance = NE_LoadFileModule( hFile16, ofs, TRUE ); _lclose16( hFile16 ); if ( hInstance < 32 ) { SetLastError( hInstance ); return FALSE; } if ( !( pModule = NE_GetPtr( hInstance ) ) || ( pModule->flags & NE_FFLAGS_LIBMODULE) ) { /* FIXME: cleanup */ SetLastError( ERROR_BAD_FORMAT ); return FALSE; } } /* Create a task for this instance */ pModule->flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */ if ( !PROCESS_Create( pModule, cmd_line, env, hInstance, hPrevInstance, psa, tsa, inherit, startup, info ) ) return FALSE; return TRUE; } /*********************************************************************** * LoadLibrary16 (KERNEL.95) */ HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname ) { char dllname[256], *p; TRACE( module, "(%08x) %s\n", (int)libname, libname ); /* Append .DLL to name if no extension present */ strcpy( dllname, libname ); if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\')) strcat( dllname, ".DLL" ); /* Load library module */ return LoadModule16( dllname, (LPVOID)-1 ); } /********************************************************************** * MODULE_CallWEP * * Call a DLL's WEP, allowing it to shut down. * FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT */ static BOOL16 MODULE_CallWEP( HMODULE16 hModule ) { FARPROC16 WEP = (FARPROC16)0; WORD ordinal = NE_GetOrdinal( hModule, "WEP" ); if (ordinal) WEP = NE_GetEntryPoint( hModule, ordinal ); if (!WEP) { WARN(module, "module %04x doesn't have a WEP\n", hModule ); return FALSE; } return Callbacks->CallWindowsExitProc( WEP, WEP_FREE_DLL ); } /********************************************************************** * NE_FreeModule * * Implementation of FreeModule16(). */ static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep ) { HMODULE16 *hPrevModule; NE_MODULE *pModule; HMODULE16 *pModRef; int i; if (!(pModule = NE_GetPtr( hModule ))) return FALSE; hModule = pModule->self; TRACE( module, "%04x count %d\n", hModule, pModule->count ); if (((INT16)(--pModule->count)) > 0 ) return TRUE; else pModule->count = 0; if (pModule->flags & NE_FFLAGS_BUILTIN) return FALSE; /* Can't free built-in module */ if (call_wep) { if (pModule->flags & NE_FFLAGS_LIBMODULE) { TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() ); MODULE_CallWEP( hModule ); /* Free the objects owned by the DLL module */ if (pTask && pTask->userhandler) pTask->userhandler( hModule, USIG_DLL_UNLOAD, 0, pTask->hInstance, pTask->hQueue ); } else call_wep = FALSE; /* We are freeing a task -> no more WEPs */ } /* Clear magic number just in case */ pModule->magic = pModule->self = 0; /* Remove it from the linked list */ hPrevModule = &hFirstModule; while (*hPrevModule && (*hPrevModule != hModule)) { hPrevModule = &(NE_GetPtr( *hPrevModule ))->next; } if (*hPrevModule) *hPrevModule = pModule->next; /* Free the referenced modules */ pModRef = (HMODULE16*)NE_MODULE_TABLE( pModule ); for (i = 0; i < pModule->modref_count; i++, pModRef++) { NE_FreeModule( *pModRef, call_wep ); } /* Free the module storage */ GlobalFreeAll16( hModule ); /* Remove module from cache */ if (pCachedModule == pModule) pCachedModule = NULL; return TRUE; } /********************************************************************** * FreeModule16 (KERNEL.46) */ BOOL16 WINAPI FreeModule16( HMODULE16 hModule ) { return NE_FreeModule( hModule, TRUE ); } /*********************************************************************** * FreeLibrary16 (KERNEL.96) */ void WINAPI FreeLibrary16( HINSTANCE16 handle ) { TRACE(module,"%04x\n", handle ); FreeModule16( handle ); } /********************************************************************** * GetModuleName (KERNEL.27) */ BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count ) { NE_MODULE *pModule; BYTE *p; if (!(pModule = NE_GetPtr( hinst ))) return FALSE; p = (BYTE *)pModule + pModule->name_table; if (count > *p) count = *p + 1; if (count > 0) { memcpy( buf, p + 1, count - 1 ); buf[count-1] = '\0'; } return TRUE; } /********************************************************************** * GetModuleUsage (KERNEL.48) */ INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule ) { NE_MODULE *pModule = NE_GetPtr( hModule ); return pModule ? pModule->count : 0; } /********************************************************************** * GetExpWinVer (KERNEL.167) */ WORD WINAPI GetExpWinVer16( HMODULE16 hModule ) { NE_MODULE *pModule = NE_GetPtr( hModule ); return pModule ? pModule->expected_version : 0; } /********************************************************************** * GetModuleFileName16 (KERNEL.49) */ INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName, INT16 nSize ) { NE_MODULE *pModule; if (!hModule) hModule = GetCurrentTask(); if (!(pModule = NE_GetPtr( hModule ))) return 0; lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize ); TRACE(module, "%s\n", lpFileName ); return strlen(lpFileName); } /********************************************************************** * GetModuleHandle16 (KERNEL.47) * * Find a module from a module name. * * RETURNS * LOWORD: * the win16 module handle if found * 0 if not * HIWORD (undocumented, see "Undocumented Windows", chapter 5): * Always hFirstModule */ DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name ) { if (HIWORD(name) == 0) return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule ); return MAKELONG(GetModuleHandle16( PTR_SEG_TO_LIN(name)), hFirstModule ); } HMODULE16 WINAPI GetModuleHandle16( LPCSTR name ) { HMODULE16 hModule = hFirstModule; LPCSTR filename, dotptr; BYTE len, *name_table; if (!(filename = strrchr( name, '\\' ))) filename = name; else { FIXME(module,"illegal usage of GetModuleHandle16\n"); filename++; } if ((dotptr = strrchr( filename, '.' )) != NULL) len = (BYTE)(dotptr - filename); else len = strlen( filename ); while (hModule) { NE_MODULE *pModule = NE_GetPtr( hModule ); if (!pModule) break; /* modulepath = NE_MODULE_NAME(pModule); TRACE(module,"name %s modulepath %s\n",name,modulepath); if (!(modulename = strrchr( modulepath, '\\' ))) modulename = modulepath; else modulename++; if (!lstrcmpiA( modulename, filename )) return hModule; */ name_table = (BYTE *)pModule + pModule->name_table; if ((*name_table == len) && !lstrncmpiA(filename, name_table+1, len)) return hModule; hModule = pModule->next; } return 0; } /********************************************************************** * ModuleFirst (TOOLHELP.59) */ BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme ) { lpme->wNext = hFirstModule; return ModuleNext16( lpme ); } /********************************************************************** * ModuleNext (TOOLHELP.60) */ BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme ) { NE_MODULE *pModule; char *name; if (!lpme->wNext) return FALSE; if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE; name = (char *)pModule + pModule->name_table; memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) ); lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0'; lpme->hModule = lpme->wNext; lpme->wcUsage = pModule->count; lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) ); lpme->wNext = pModule->next; return TRUE; } /********************************************************************** * ModuleFindName (TOOLHELP.61) */ BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name ) { lpme->wNext = GetModuleHandle16( name ); return ModuleNext16( lpme ); } /********************************************************************** * ModuleFindHandle (TOOLHELP.62) */ BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule ) { hModule = GetExePtr( hModule ); lpme->wNext = hModule; return ModuleNext16( lpme ); } /********************************************************************** * * try to find a ne-module with the same path as a given name */ static HMODULE16 GetModuleFromPath(LPCSTR name) { MODULEENTRY lookforit; NE_MODULE *pModule; DOS_FULL_NAME nametoload, nametocompare; LPCSTR modulepath; if (!name) return 0; if (!DOSFS_GetFullName(name,TRUE,&nametoload)) /* we don't have a full qualified path */ return GetModuleHandle16( name ); lookforit.dwSize=sizeof(MODULEENTRY); for (ModuleFirst16(&lookforit); ModuleNext16(&lookforit);) { pModule = NE_GetPtr( lookforit.hModule ); if (!pModule) break; modulepath = NE_MODULE_NAME(pModule); if (!modulepath) break; /* Only comparing the Unix path will give valid results*/ if (DOSFS_GetFullName(modulepath,TRUE,&nametocompare)) if (!strcmp(nametoload.long_name,nametocompare.long_name)) return lookforit.hModule; } return 0; } /*************************************************************************** * MapHModuleLS (KERNEL32.520) */ HMODULE16 WINAPI MapHModuleLS(HMODULE hmod) { NE_MODULE *pModule; if (!hmod) return ((TDB*)GlobalLock16(GetCurrentTask()))->hInstance; if (!HIWORD(hmod)) return hmod; /* we already have a 16 bit module handle */ pModule = (NE_MODULE*)GlobalLock16(hFirstModule); while (pModule) { if (pModule->module32 == hmod) return pModule->self; pModule = (NE_MODULE*)GlobalLock16(pModule->next); } return 0; } /*************************************************************************** * MapHModuleSL (KERNEL32.521) */ HMODULE WINAPI MapHModuleSL(HMODULE16 hmod) { NE_MODULE *pModule; if (!hmod) { TDB *pTask = (TDB*)GlobalLock16(GetCurrentTask()); hmod = pTask->hModule; } pModule = (NE_MODULE*)GlobalLock16(hmod); if ( (pModule->magic!=IMAGE_OS2_SIGNATURE) || !(pModule->flags & NE_FFLAGS_WIN32) ) return 0; return pModule->module32; } /*************************************************************************** * MapHInstLS (KERNEL32.516) */ REGS_ENTRYPOINT(MapHInstLS) { EAX_reg(context) = MapHModuleLS(EAX_reg(context)); } /*************************************************************************** * MapHInstSL (KERNEL32.518) */ REGS_ENTRYPOINT(MapHInstSL) { EAX_reg(context) = MapHModuleSL(EAX_reg(context)); } /*************************************************************************** * MapHInstLS_PN (KERNEL32.517) */ REGS_ENTRYPOINT(MapHInstLS_PN) { if (EAX_reg(context)) EAX_reg(context) = MapHModuleLS(EAX_reg(context)); } /*************************************************************************** * MapHInstSL_PN (KERNEL32.519) */ REGS_ENTRYPOINT(MapHInstSL_PN) { if (EAX_reg(context)) EAX_reg(context) = MapHModuleSL(EAX_reg(context)); } /*************************************************************************** * WIN16_MapHInstLS (KERNEL.472) */ VOID WINAPI WIN16_MapHInstLS( CONTEXT *context ) { EAX_reg(context) = MapHModuleLS(EAX_reg(context)); } /*************************************************************************** * WIN16_MapHInstSL (KERNEL.473) */ VOID WINAPI WIN16_MapHInstSL( CONTEXT *context ) { EAX_reg(context) = MapHModuleSL(EAX_reg(context)); }