Sweden-Number/loader/wine.c

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static char RCSId[] = "$Id: wine.c,v 1.2 1993/07/04 04:04:21 root Exp root $";
static char Copyright[] = "Copyright Robert J. Amstadt, 1993";
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#ifdef linux
#include <linux/unistd.h>
#include <linux/head.h>
#include <linux/ldt.h>
#include <linux/segment.h>
#endif
#include <string.h>
#include <errno.h>
#include "neexe.h"
#include "segmem.h"
#include "prototypes.h"
#include "dlls.h"
#include "wine.h"
#include "windows.h"
#include "wineopts.h"
#include "arch.h"
#include "options.h"
/* #define DEBUG_FIXUP */
extern int CallToInit16(unsigned long csip, unsigned long sssp,
unsigned short ds);
extern void CallTo32();
char * GetModuleName(struct w_files * wpnt, int index, char *buffer);
extern unsigned char ran_out;
extern char WindowsPath[256];
char *WIN_ProgramName;
unsigned short WIN_StackSize;
unsigned short WIN_HeapSize;
struct w_files * wine_files = NULL;
int WineForceFail = 0;
char **Argv;
int Argc;
struct mz_header_s *CurrentMZHeader;
struct ne_header_s *CurrentNEHeader;
int CurrentNEFile;
HINSTANCE hSysRes;
static char *DLL_Extensions[] = { "dll", "exe", NULL };
static char *EXE_Extensions[] = { "exe", NULL };
static char *WinePath = NULL;
FILE *SpyFp = NULL;
/**********************************************************************
* myerror
*/
void
myerror(const char *s)
{
if (s == NULL)
perror("wine");
else
fprintf(stderr, "wine: %s\n", s);
exit(1);
}
/**********************************************************************
* GetFilenameFromInstance
*/
char *
GetFilenameFromInstance(unsigned short instance)
{
register struct w_files *w = wine_files;
while (w && w->hinstance != instance)
w = w->next;
if (w)
return w->filename;
else
return NULL;
}
struct w_files *
GetFileInfo(unsigned short instance)
{
register struct w_files *w = wine_files;
while (w && w->hinstance != instance)
w = w->next;
return w;
}
#ifndef WINELIB
/**********************************************************************
*
* Load MZ Header
*/
void load_mz_header(int fd, struct mz_header_s *mz_header)
{
if (read(fd, mz_header, sizeof(struct mz_header_s)) !=
sizeof(struct mz_header_s))
{
myerror("Unable to read MZ header from file");
}
}
void load_ne_header (int fd, struct ne_header_s *ne_header)
{
if (read(fd, ne_header, sizeof(struct ne_header_s))
!= sizeof(struct ne_header_s))
{
myerror("Unable to read NE header from file");
}
}
#endif
/**********************************************************************
* LoadImage
* Load one NE format executable into memory
*/
HINSTANCE LoadImage(char *modulename, int filetype, int change_dir)
{
unsigned int read_size;
int i;
struct w_files * wpnt, *wpnt1;
unsigned int status;
char buffer[256];
char *fullname;
/*
* search file
*/
fullname = FindFile(buffer, sizeof(buffer), modulename,
(filetype == EXE ? EXE_Extensions : DLL_Extensions),
WindowsPath);
if (fullname == NULL)
{
fprintf(stderr, "LoadImage: I can't find %s.dll | %s.exe !\n",
modulename, modulename);
return (HINSTANCE) NULL;
}
fullname = GetDosFileName(fullname);
WIN_ProgramName = strdup(fullname);
fprintf(stderr,"LoadImage: loading %s (%s)\n [%s]\n",
modulename, buffer, WIN_ProgramName);
if (change_dir && fullname)
{
char dirname[256];
char *p;
strcpy(dirname, fullname);
p = strrchr(dirname, '\\');
*p = '\0';
DOS_SetDefaultDrive(dirname[0] - 'A');
DOS_ChangeDir(dirname[0] - 'A', dirname + 2);
}
/* First allocate a spot to store the info we collect, and add it to
* our linked list.
*/
wpnt = (struct w_files *) malloc(sizeof(struct w_files));
if(wine_files == NULL)
wine_files = wpnt;
else {
wpnt1 = wine_files;
while(wpnt1->next) wpnt1 = wpnt1->next;
wpnt1->next = wpnt;
};
wpnt->next = NULL;
/*
* Open file for reading.
*/
wpnt->fd = open(buffer, O_RDONLY);
if (wpnt->fd < 0)
{
myerror(NULL);
}
/*
* Establish header pointers.
*/
wpnt->filename = strdup(buffer);
wpnt->name = NULL;
if(modulename) wpnt->name = strdup(modulename);
wpnt->mz_header = (struct mz_header_s *) malloc(sizeof(struct mz_header_s));;
status = lseek(wpnt->fd, 0, SEEK_SET);
load_mz_header (wpnt->fd, wpnt->mz_header);
if (wpnt->mz_header->must_be_0x40 != 0x40)
myerror("This is not a Windows program");
wpnt->ne_header = (struct ne_header_s *) malloc(sizeof(struct ne_header_s));
status = lseek(wpnt->fd, wpnt->mz_header->ne_offset, SEEK_SET);
load_ne_header (wpnt->fd, wpnt->ne_header);
if (wpnt->ne_header->header_type[0] != 'N' ||
wpnt->ne_header->header_type[1] != 'E')
myerror("This is not a Windows program");
if(wine_files == wpnt){
CurrentMZHeader = wpnt->mz_header;
CurrentNEHeader = wpnt->ne_header;
CurrentNEFile = wpnt->fd;
WIN_StackSize = wpnt->ne_header->stack_length;
WIN_HeapSize = wpnt->ne_header->local_heap_length;
};
/*
* Create segment selectors.
*/
#ifndef WINELIB
status = lseek(wpnt->fd, wpnt->mz_header->ne_offset +
wpnt->ne_header->segment_tab_offset,
SEEK_SET);
read_size = wpnt->ne_header->n_segment_tab *
sizeof(struct ne_segment_table_entry_s);
wpnt->seg_table = (struct ne_segment_table_entry_s *) malloc(read_size);
if (read(wpnt->fd, wpnt->seg_table, read_size) != read_size)
myerror("Unable to read segment table header from file");
wpnt->selector_table = CreateSelectors(wpnt);
wpnt->hinstance
= wpnt->
selector_table[wpnt->ne_header->auto_data_seg-1].selector;
/* Get the lookup table. This is used for looking up the addresses
of functions that are exported */
read_size = wpnt->ne_header->entry_tab_length;
wpnt->lookup_table = (char *) malloc(read_size);
lseek(wpnt->fd, wpnt->mz_header->ne_offset +
wpnt->ne_header->entry_tab_offset, SEEK_SET);
if (read(wpnt->fd, wpnt->lookup_table, read_size) != read_size)
myerror("Unable to read lookup table header from file");
/* Get the iname table. This is used for looking up the names
of functions that are exported */
status = lseek(wpnt->fd, wpnt->ne_header->nrname_tab_offset, SEEK_SET);
read_size = wpnt->ne_header->nrname_tab_length;
wpnt->nrname_table = (char *) malloc(read_size);
if (read(wpnt->fd, wpnt->nrname_table, read_size) != read_size)
myerror("Unable to read nrname table header from file");
status = lseek(wpnt->fd, wpnt->mz_header->ne_offset +
wpnt->ne_header->rname_tab_offset, SEEK_SET);
read_size = wpnt->ne_header->moduleref_tab_offset -
wpnt->ne_header->rname_tab_offset;
wpnt->rname_table = (char *) malloc(read_size);
if (read(wpnt->fd, wpnt->rname_table, read_size) != read_size)
myerror("Unable to read rname table header from file");
/* Now get the module name */
wpnt->name = (char*) malloc(*wpnt->rname_table + 1);
memcpy(wpnt->name, wpnt->rname_table+1, *wpnt->rname_table);
wpnt->name[*wpnt->rname_table] = 0;
#endif
/*
* Now load any DLLs that this module refers to.
*/
for(i=0; i<wpnt->ne_header->n_mod_ref_tab; i++){
char buff[14];
char buff2[256];
int fd, j;
GetModuleName(wpnt, i + 1, buff);
#ifndef WINELIB
if(FindDLLTable(buff)) continue; /* This module already loaded */
#endif
LoadImage(buff, DLL, 0);
/*
fprintf(stderr,"Unable to load:%s\n", buff);
*/
}
return(wpnt->hinstance);
}
/**********************************************************************
* main
*/
_WinMain(int argc, char **argv)
{
int segment;
char *p;
char *sysresname;
char filename[100];
char syspath[256];
char exe_path[256];
#ifdef WINESTAT
char * cp;
#endif
struct w_files * wpnt;
int cs_reg, ds_reg, ss_reg, ip_reg, sp_reg;
int i;
int rv;
Argc = argc - 1;
Argv = argv + 1;
WinePath = malloc(1024);
getcwd(WinePath, 512);
if ((p = getenv("WINEPATH")) != NULL) {
strcat(WinePath, ";");
strcat(WinePath, p);
}
if ((hInstMain = LoadImage(Argv[0], EXE, 1)) == (HINSTANCE) NULL ) {
fprintf(stderr, "wine: can't find %s!.\n", Argv[0]);
exit(1);
}
GetPrivateProfileString("wine", "SystemResources", "sysres.dll",
filename, sizeof(filename), WINE_INI);
hSysRes = LoadImage(filename, DLL);
if (hSysRes == (HINSTANCE)NULL)
fprintf(stderr, "wine: can't find %s!\n", filename);
else
printf("System Resources Loaded // hSysRes='%04X'\n", hSysRes);
/*
* Fixup references.
*/
wpnt = wine_files;
for(wpnt = wine_files; wpnt; wpnt = wpnt->next)
{
for (segment = 0; segment < wpnt->ne_header->n_segment_tab; segment++)
{
if (FixupSegment(wpnt, segment) < 0)
{
myerror("fixup failed.");
}
}
}
#ifdef WINESTAT
cp = strrchr(argv[0], '/');
if(!cp) cp = argv[0];
else cp++;
if(strcmp(cp,"winestat") == 0) {
winestat();
exit(0);
};
#endif
/*
* Initialize signal handling.
*/
init_wine_signals();
/*
* Fixup stack and jump to start.
*/
ds_reg = (wine_files->
selector_table[wine_files->ne_header->auto_data_seg-1].selector);
cs_reg = wine_files->selector_table[wine_files->ne_header->cs-1].selector;
ip_reg = wine_files->ne_header->ip;
ss_reg = wine_files->selector_table[wine_files->ne_header->ss-1].selector;
sp_reg = wine_files->ne_header->sp;
if (Options.debug) wine_debug(0, NULL);
rv = CallToInit16(cs_reg << 16 | ip_reg, ss_reg << 16 | sp_reg, ds_reg);
printf ("rv = %x\n", rv);
}
void InitializeLoadedDLLs()
{
struct w_files * wpnt;
int cs_reg, ds_reg, ip_reg;
int rv;
fprintf(stderr, "Initializing DLLs\n");
/*
* Initialize libraries
*/
wpnt = wine_files;
for(wpnt = wine_files; wpnt; wpnt = wpnt->next)
{
/*
* Is this a library?
*/
if (wpnt->ne_header->format_flags & 0x8000)
{
if (!(wpnt->ne_header->format_flags & 0x0001))
{
/* Not SINGLEDATA */
fprintf(stderr, "Library is not marked SINGLEDATA\n");
exit(1);
}
ds_reg = wpnt->selector_table[wpnt->
ne_header->auto_data_seg-1].selector;
cs_reg = wpnt->selector_table[wpnt->ne_header->cs-1].selector;
ip_reg = wpnt->ne_header->ip;
fprintf(stderr, "Initializing %s, cs:ip %04x:%04x, ds %04x\n",
wpnt->name, cs_reg, ip_reg, ds_reg);
rv = CallTo16(cs_reg << 16 | ip_reg, ds_reg);
printf ("rv = %x\n", rv);
}
}
}
/**********************************************************************
* GetImportedName
*/
char *
GetImportedName(int fd, struct mz_header_s *mz_header,
struct ne_header_s *ne_header, int name_offset, char *buffer)
{
char *p;
int length;
int status;
int i;
status = lseek(fd, mz_header->ne_offset + ne_header->iname_tab_offset +
name_offset, SEEK_SET);
length = 0;
read(fd, &length, 1); /* Get the length byte */
length = CONV_CHAR_TO_LONG (length);
read(fd, buffer, length);
buffer[length] = 0;
return buffer;
}
/**********************************************************************
* GetModuleName
*/
char *
GetModuleName(struct w_files * wpnt, int index, char *buffer)
{
int fd = wpnt->fd;
struct mz_header_s *mz_header = wpnt->mz_header;
struct ne_header_s *ne_header = wpnt->ne_header;
char *p;
int length;
WORD name_offset, status;
int i;
status = lseek(fd, mz_header->ne_offset + ne_header->moduleref_tab_offset +
2*(index - 1), SEEK_SET);
name_offset = 0;
read(fd, &name_offset, 2);
name_offset = CONV_SHORT (name_offset);
status = lseek(fd, mz_header->ne_offset + ne_header->iname_tab_offset +
name_offset, SEEK_SET);
length = 0;
read(fd, &length, 1); /* Get the length byte */
length = CONV_CHAR_TO_LONG (length);
read(fd, buffer, length);
buffer[length] = 0;
/* Module names are always upper case */
for(i=0; i<length; i++)
if(buffer[i] >= 'a' && buffer[i] <= 'z') buffer[i] &= ~0x20;
return buffer;
}
#ifndef WINELIB
/**********************************************************************
* FixupSegment
*/
int
FixupSegment(struct w_files * wpnt, int segment_num)
{
int fd = wpnt->fd;
struct mz_header_s * mz_header = wpnt->mz_header;
struct ne_header_s *ne_header = wpnt->ne_header;
struct ne_segment_table_entry_s *seg_table = wpnt->seg_table;
struct segment_descriptor_s *selector_table = wpnt->selector_table;
struct relocation_entry_s *rep, *rep1;
struct ne_segment_table_entry_s *seg;
struct segment_descriptor_s *sel;
struct dll_table_entry_s *dll_table;
int status;
unsigned short *sp;
unsigned int selector, address;
unsigned int next_addr;
int ordinal;
char dll_name[257];
char func_name[257];
int i, n_entries;
int additive;
seg = &seg_table[segment_num];
sel = &selector_table[segment_num];
#ifdef DEBUG_FIXUP
printf("Segment fixups for %s, segment %d, selector %x\n",
wpnt->name, segment_num, (int) sel->base_addr >> 16);
#endif
if ((seg->seg_data_offset == 0) ||
!(seg->seg_flags & NE_SEGFLAGS_RELOC_DATA))
return 0;
/*
* Go through the relocation table on entry at a time.
*/
i = seg->seg_data_length;
if (i == 0)
i = 0x10000;
status = lseek(fd, seg->seg_data_offset *
(1 << ne_header->align_shift_count) + i, SEEK_SET);
n_entries = 0;
read(fd, &n_entries, sizeof(short int));
rep = (struct relocation_entry_s *)
malloc(n_entries * sizeof(struct relocation_entry_s));
if (read(fd,rep, n_entries * sizeof(struct relocation_entry_s)) !=
n_entries * sizeof(struct relocation_entry_s))
{
myerror("Unable to read relocation information");
}
rep1 = rep;
for (i = 0; i < n_entries; i++, rep++)
{
/*
* Get the target address corresponding to this entry.
*/
additive = 0;
switch (rep->relocation_type)
{
case NE_RELTYPE_ORDINALADD:
additive = 1;
case NE_RELTYPE_ORDINAL:
if (GetModuleName(wpnt, rep->target1,
dll_name) == NULL)
{
fprintf(stderr, "NE_RELTYPE_ORDINAL failed");
return -1;
}
ordinal = rep->target2;
status = GetEntryDLLOrdinal(dll_name, ordinal, &selector,
&address);
if (status)
{
char s[80];
sprintf(s, "Bad DLL name '%s.%d'", dll_name, ordinal);
myerror(s);
return -1;
}
#ifdef DEBUG_FIXUP
printf("%d: %s.%d: %04.4x:%04.4x\n", i + 1, dll_name, ordinal,
selector, address);
#endif
break;
case NE_RELTYPE_NAMEADD:
additive = 1;
case NE_RELTYPE_NAME:
if (GetModuleName(wpnt, rep->target1, dll_name)
== NULL)
{
fprintf(stderr,"NE_RELTYPE_NAME failed");
return -1;
}
if (GetImportedName(fd, mz_header, ne_header,
rep->target2, func_name) == NULL)
{
fprintf(stderr,"getimportedname failed");
return -1;
}
status = GetEntryDLLName(dll_name, func_name, &selector,
&address);
if (status)
{
char s[80];
sprintf(s, "Bad DLL name '%s (%s)'", dll_name,func_name);
myerror(s);
return -1;
}
#ifdef DEBUG_FIXUP
printf("%d: %s %s.%d: %04.4x:%04.4x\n", i + 1, func_name,
dll_name, ordinal, selector, address);
#endif
break;
case NE_RELTYPE_INTERNAL:
case NE_RELTYPE_INT1:
if (rep->target1 == 0x00ff)
{
address = GetEntryPointFromOrdinal(wpnt, rep->target2);
selector = (address >> 16) & 0xffff;
address &= 0xffff;
}
else
{
selector = selector_table[rep->target1-1].selector;
address = rep->target2;
}
#ifdef DEBUG_FIXUP
printf("%d: %04.4x:%04.4x\n", i + 1, selector, address);
#endif
break;
case 7:
/* Relocation type 7:
*
* These appear to be used as fixups for the Windows
* floating point emulator. Let's just ignore them and
* try to use the hardware floating point. Linux should
* successfully emulate the coprocessor if it doesn't
* exist.
*/
#ifdef DEBUG_FIXUP
printf("%d: ADDR TYPE %d, TYPE %d, OFFSET %04.4x, ",
i + 1, rep->address_type, rep->relocation_type,
rep->offset);
printf("TARGET %04.4x %04.4x\n", rep->target1, rep->target2);
#endif
continue;
default:
fprintf(stderr,"%d: ADDR TYPE %d, TYPE %d, OFFSET %04.4x, ",
i + 1, rep->address_type, rep->relocation_type,
rep->offset);
fprintf(stderr,"TARGET %04.4x %04.4x\n",
rep->target1, rep->target2);
free(rep1);
return -1;
}
/*
* Stuff the right size result in.
*/
sp = (unsigned short *) ((char *) sel->base_addr + rep->offset);
if (additive)
{
if (FindDLLTable(dll_name) == NULL)
additive = 2;
fprintf(stderr,"%d: ADDR TYPE %d, TYPE %d, OFFSET %04.4x, ",
i + 1, rep->address_type, rep->relocation_type,
rep->offset);
fprintf(stderr,"TARGET %04.4x %04.4x\n",
rep->target1, rep->target2);
fprintf(stderr, " Additive = %d\n", additive);
}
switch (rep->address_type)
{
case NE_RADDR_OFFSET16:
do {
#ifdef DEBUG_FIXUP
printf(" %04.4x:%04.4x:%04.4x OFFSET16\n",
(unsigned long) sp >> 16, (int) sp & 0xFFFF, *sp);
#endif
next_addr = *sp;
*sp = (unsigned short) address;
if (additive == 2)
*sp += next_addr;
sp = (unsigned short *) ((char *) sel->base_addr + next_addr);
}
while (next_addr != 0xffff && !additive);
break;
case NE_RADDR_POINTER32:
do {
#ifdef DEBUG_FIXUP
printf(" %04.4x:%04.4x:%04.4x POINTER32\n",
(unsigned long) sp >> 16, (int) sp & 0xFFFF, *sp);
#endif
next_addr = *sp;
*sp = (unsigned short) address;
if (additive == 2)
*sp += next_addr;
*(sp+1) = (unsigned short) selector;
sp = (unsigned short *) ((char *) sel->base_addr + next_addr);
}
while (next_addr != 0xffff && !additive);
break;
case NE_RADDR_SELECTOR:
do {
#ifdef DEBUG_FIXUP
printf(" %04.4x:%04.4x:%04.4x SELECTOR\n",
(unsigned long) sp >> 16, (int) sp & 0xFFFF, *sp);
#endif
next_addr = *sp;
*sp = (unsigned short) selector;
sp = (unsigned short *) ((char *) sel->base_addr + next_addr);
if (rep->relocation_type == NE_RELTYPE_INT1)
break;
}
while (next_addr != 0xffff && !additive);
break;
default:
printf("%d: ADDR TYPE %d, TYPE %d, OFFSET %04.4x, ",
i + 1, rep->address_type, rep->relocation_type,
rep->offset);
printf("TARGET %04.4x %04.4x\n", rep->target1, rep->target2);
free(rep1);
return -1;
}
}
free(rep1);
return 0;
}
/**********************************************************************
* GetProcAddress
*/
FARPROC GetProcAddress(HINSTANCE hinstance, char *proc_name)
{
if ((int) proc_name & 0xffff0000)
printf("GetProcAddress: %#04x, '%s'\n", hinstance, proc_name);
else
printf("GetProcAddress: %#04x, %d\n", hinstance, (int) proc_name);
return NULL;
}
#endif