Ryan C. Gordon
086e05dd0c
I must have been reading docs for device drivers, or something...? Now it returns the top word of the linear pointer, in hopes that this will just get mushed back together later, knock on wood.
845 lines
28 KiB
C
845 lines
28 KiB
C
#define _POSIX_C_SOURCE 199309
|
|
#define _BSD_SOURCE
|
|
#define _GNU_SOURCE
|
|
#include <unistd.h>
|
|
#include <limits.h>
|
|
#include <time.h>
|
|
#include <dirent.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/sysinfo.h>
|
|
#include <sys/time.h>
|
|
#include <sys/resource.h>
|
|
|
|
#include "os2native.h"
|
|
#include "doscalls.h"
|
|
|
|
static LxLoaderState *GLoaderState = NULL;
|
|
|
|
typedef struct ExitListItem
|
|
{
|
|
PFNEXITLIST fn;
|
|
uint32 priority;
|
|
struct ExitListItem *next;
|
|
} ExitListItem;
|
|
|
|
static ExitListItem *GExitList = NULL;
|
|
|
|
// Flags returned for character devices from DosQueryHType()...
|
|
enum {
|
|
DAW_STDIN = (1 << 0),
|
|
DAW_STDOUT = (1 << 1),
|
|
DAW_NUL = (1 << 2),
|
|
DAW_CLOCK = (1 << 3),
|
|
DAW_SPEC = (1 << 4),
|
|
DAW_ADD_ON = (1 << 5),
|
|
DAW_GIOCTL = (1 << 6),
|
|
|
|
DAW_LEVEL0 = 0,
|
|
DAW_LEVEL1 = (1 << 7),
|
|
DAW_LEVEL2 = (1 << 8),
|
|
DAW_LEVEL3 = (1 << 7) | (1 << 8),
|
|
DAW_FCNLEV = (1 << 7) | (1 << 8) | (1 << 9),
|
|
|
|
// ((1 << 10) is reserved, I think.)
|
|
|
|
DAW_OPENCLOSE = (1 << 11),
|
|
DAW_SHARE = (1 << 12),
|
|
DAW_NONIBM = (1 << 13),
|
|
DAW_IDC = (1 << 14),
|
|
DAW_CHARACTER = (1 << 15)
|
|
};
|
|
|
|
typedef struct HFileInfo
|
|
{
|
|
int fd;
|
|
ULONG type;
|
|
ULONG attr;
|
|
} HFileInfo;
|
|
|
|
static HFileInfo *HFiles = NULL;
|
|
static uint32 MaxHFiles = 0;
|
|
|
|
LX_NATIVE_MODULE_DEINIT({
|
|
ExitListItem *next = GExitList;
|
|
GExitList = NULL;
|
|
for (ExitListItem *item = next; item; item = next) {
|
|
next = item->next;
|
|
free(item);
|
|
} // for
|
|
free(HFiles);
|
|
HFiles = NULL;
|
|
MaxHFiles = 0;
|
|
GLoaderState = NULL;
|
|
})
|
|
|
|
static int initDoscalls(LxLoaderState *lx_state)
|
|
{
|
|
GLoaderState = lx_state;
|
|
MaxHFiles = 20; // seems to be OS/2's default.
|
|
HFiles = (HFileInfo *) malloc(sizeof (HFileInfo) * MaxHFiles);
|
|
if (!HFiles) {
|
|
fprintf(stderr, "Out of memory!\n");
|
|
return 0;
|
|
} // if
|
|
|
|
HFileInfo *info = HFiles;
|
|
for (uint32 i = 0; i < MaxHFiles; i++, info++) {
|
|
info->fd = -1;
|
|
info->type = 0;
|
|
info->attr = 0;
|
|
} // for
|
|
|
|
// launching a Hello World program from CMD.EXE seems to inherit several
|
|
// file handles. 0, 1, 2 seem to map to stdin, stdout, stderr (and will
|
|
// be character devices (maybe CON?) by default, unless you redirect
|
|
// to a file in which case they're physical files, and using '|' in
|
|
// CMD.EXE will make handle 1 into a Pipe, of course.
|
|
// Handles, 4, 6 and 9 were also in use (all character devices, attributes
|
|
// 51585, 51392, 51392), but I don't know what these are, if they are
|
|
// inherited from CMD.EXE or supplied by OS/2 for whatever purpose.
|
|
// For now, we just wire up stdio.
|
|
|
|
for (int i = 0; i <= 2; i++) {
|
|
HFiles[i].fd = i;
|
|
HFiles[i].type = 1; // !!! FIXME: could be a pipe or file.
|
|
HFiles[i].attr = DAW_STDIN | DAW_STDOUT | DAW_LEVEL1 | DAW_CHARACTER;
|
|
} // for
|
|
|
|
return 1;
|
|
} // initDoscalls
|
|
|
|
LX_NATIVE_MODULE_INIT({ if (!initDoscalls(lx_state)) return NULL; })
|
|
LX_NATIVE_EXPORT(DosQueryHType, 224),
|
|
LX_NATIVE_EXPORT(DosScanEnv, 227),
|
|
LX_NATIVE_EXPORT(DosGetDateTime, 230),
|
|
LX_NATIVE_EXPORT(DosExit, 234),
|
|
LX_NATIVE_EXPORT(DosOpen, 273),
|
|
LX_NATIVE_EXPORT(DosWrite, 282),
|
|
LX_NATIVE_EXPORT(DosExitList, 296),
|
|
LX_NATIVE_EXPORT(DosAllocMem, 299),
|
|
LX_NATIVE_EXPORT(DosSetMem, 305),
|
|
LX_NATIVE_EXPORT(DosGetInfoBlocks, 312),
|
|
LX_NATIVE_EXPORT(DosQueryModuleName, 320),
|
|
LX_NATIVE_EXPORT(DosCreateEventSem, 324),
|
|
LX_NATIVE_EXPORT(DosCreateMutexSem, 331),
|
|
LX_NATIVE_EXPORT(DosSubSetMem, 344),
|
|
LX_NATIVE_EXPORT(DosSubAllocMem, 345),
|
|
LX_NATIVE_EXPORT(DosQuerySysInfo, 348),
|
|
LX_NATIVE_EXPORT(DosSetExceptionHandler, 354),
|
|
LX_NATIVE_EXPORT(DosSetSignalExceptionFocus, 378),
|
|
LX_NATIVE_EXPORT(DosSetRelMaxFH, 382),
|
|
LX_NATIVE_EXPORT(DosFlatToSel, 425)
|
|
LX_NATIVE_MODULE_INIT_END()
|
|
|
|
|
|
APIRET DosGetInfoBlocks(PTIB *pptib, PPIB *pppib)
|
|
{
|
|
TRACE_NATIVE("DosGetInfoBlocks(%p, %p)", pptib, pppib);
|
|
|
|
if (pptib != NULL) {
|
|
// just read the FS register, since we have to stick it there anyhow...
|
|
uint8 *ptib2;
|
|
__asm__ __volatile__ ( "movl %%fs:0xC, %0 \n\t" : "=r" (ptib2) );
|
|
// we store the TIB2 struct right after the TIB struct on the stack,
|
|
// so get the TIB2's linear address from %fs:0xC, then step back
|
|
// to the TIB's linear address.
|
|
*pptib = (PTIB) (ptib2 - sizeof (TIB));
|
|
} // if
|
|
|
|
if (pppib != NULL) {
|
|
static PIB pib;
|
|
if (pib.pib_ulpid == 0) {
|
|
// !!! FIXME: this is seriously incomplete.
|
|
pib.pib_hmte = (HMODULE) GLoaderState->main_module;
|
|
pib.pib_ulpid = (uint32) getpid();
|
|
pib.pib_ulppid = (uint32) getppid();
|
|
pib.pib_pchcmd = GLoaderState->main_module->cmd;
|
|
pib.pib_pchenv = GLoaderState->main_module->env;
|
|
} // if
|
|
*pppib = &pib;
|
|
} // if
|
|
|
|
return 0;
|
|
} // DosGetInfoBlocks
|
|
|
|
APIRET DosQuerySysInfo(ULONG first, ULONG last, PVOID _buf, ULONG buflen)
|
|
{
|
|
TRACE_NATIVE("DosQuerySysInfo(%u, %u, %p, %u)", (uint) first, (uint) last, _buf, (uint) buflen);
|
|
|
|
uint32 *buf = (uint32 *) _buf;
|
|
if (last < first) return ERROR_INVALID_PARAMETER;
|
|
if ( (buflen / sizeof (uint32)) < ((last - first) + 1) ) return ERROR_BUFFER_OVERFLOW;
|
|
for (uint32 varid = first; varid <= last; varid++) {
|
|
switch (varid) {
|
|
case QSV_MAX_PATH_LENGTH: *(buf++) = PATH_MAX; break;
|
|
case QSV_MAX_TEXT_SESSIONS: *(buf++) = 999999; break;
|
|
case QSV_MAX_PM_SESSIONS: *(buf++) = 999999; break;
|
|
case QSV_MAX_VDM_SESSIONS: *(buf++) = 0; break;
|
|
case QSV_BOOT_DRIVE: *(buf++) = 3; break; // "C:"
|
|
case QSV_DYN_PRI_VARIATION: *(buf++) = 1; break;
|
|
case QSV_MAX_WAIT: *(buf++) = 1; break;
|
|
case QSV_MIN_SLICE: *(buf++) = 1; break;
|
|
case QSV_MAX_SLICE: *(buf++) = 10; break;
|
|
case QSV_PAGE_SIZE: *(buf++) = 4096; break;
|
|
// !!! FIXME: change the version number in some way so apps can know this isn't actually OS/2.
|
|
case QSV_VERSION_MAJOR: *(buf++) = 20; break; // OS/2 Warp 4.0
|
|
case QSV_VERSION_MINOR: *(buf++) = 40; break; // OS/2 Warp 4.0
|
|
case QSV_VERSION_REVISION: *(buf++) = 0; break; // OS/2 Warp 4.0
|
|
|
|
case QSV_MS_COUNT: {
|
|
static long startoffset = 0;
|
|
if (startoffset == 0) {
|
|
struct timespec ts;
|
|
struct sysinfo info;
|
|
sysinfo(&info);
|
|
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
|
|
startoffset = info.uptime - ((long) ts.tv_sec);
|
|
} // if
|
|
|
|
struct timespec ts;
|
|
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
|
|
*(buf++) = (uint32) (((long) ts.tv_sec) - startoffset);
|
|
break;
|
|
} // case
|
|
|
|
case QSV_TIME_LOW: *(buf++) = (uint32) time(NULL); break;
|
|
case QSV_TIME_HIGH: *(buf++) = 0; break; // !!! FIXME: 32-bit Linux time_t is 32-bits!
|
|
|
|
case QSV_TOTPHYSMEM: {
|
|
struct sysinfo info;
|
|
sysinfo(&info);
|
|
*(buf++) = (uint32) info.totalram;
|
|
break;
|
|
} // case
|
|
|
|
case QSV_TOTRESMEM: {
|
|
struct sysinfo info;
|
|
sysinfo(&info);
|
|
*(buf++) = (uint32) info.totalram - info.freeram; // !!! FIXME: probably not right?
|
|
break;
|
|
} // case
|
|
|
|
case QSV_TOTAVAILMEM: {
|
|
struct sysinfo info;
|
|
sysinfo(&info);
|
|
*(buf++) = (uint32) info.freeram;
|
|
break;
|
|
} // case
|
|
|
|
case QSV_MAXPRMEM: *(buf++) = 0x7FFFFFFF; break; // !!! FIXME: should I list all 4 gigs? Also: what about machines with < 2 gigs?
|
|
case QSV_MAXSHMEM: *(buf++) = 0x7FFFFFFF; break; // !!! FIXME: should I list all 4 gigs? Also: what about machines with < 2 gigs?
|
|
|
|
case QSV_TIMER_INTERVAL: *(buf++) = 10; break;
|
|
case QSV_MAX_COMP_LENGTH: *(buf++) = NAME_MAX; break;
|
|
case QSV_FOREGROUND_FS_SESSION: *(buf++) = 1; break; // !!! FIXME
|
|
case QSV_FOREGROUND_PROCESS: *(buf++) = 1; break; // !!! FIXME
|
|
|
|
default: return ERROR_INVALID_PARAMETER;
|
|
} // switch
|
|
} // for
|
|
|
|
return NO_ERROR;
|
|
} // DosQuerySysInfo
|
|
|
|
|
|
APIRET DosQueryModuleName(HMODULE hmod, ULONG buflen, PCHAR buf)
|
|
{
|
|
TRACE_NATIVE("DosQueryModuleName(%u, %u, %p)", (uint) hmod, (uint) buflen, buf);
|
|
|
|
const LxModule *lxmod = (LxModule *) hmod;
|
|
// !!! FIXME: error 6 ERROR_INVALID_HANDLE
|
|
if (strlen(lxmod->os2path) <= buflen)
|
|
return ERROR_BAD_LENGTH;
|
|
strcpy(buf, lxmod->os2path);
|
|
return NO_ERROR;
|
|
} // DosQueryModuleName
|
|
|
|
|
|
APIRET DosScanEnv(PSZ name, PSZ *outval)
|
|
{
|
|
TRACE_NATIVE("DosScanEnv('%s', %p)", name, outval);
|
|
|
|
char *env = GLoaderState->main_module->env;
|
|
const size_t len = strlen(name);
|
|
while (*env) {
|
|
if ((strncmp(env, name, len) == 0) && (env[len] == '=')) {
|
|
*outval = env + len + 1;
|
|
return NO_ERROR;
|
|
} // if
|
|
env += strlen(env) + 1;
|
|
} // while
|
|
|
|
return ERROR_ENVVAR_NOT_FOUND;
|
|
} // DosScanEnv
|
|
|
|
APIRET DosWrite(HFILE h, PVOID buf, ULONG buflen, PULONG actual)
|
|
{
|
|
TRACE_NATIVE("DosWrite(%u, %p, %u, %p)", (uint) h, buf, (uint) buflen, actual);
|
|
|
|
// !!! FIXME: writing to a terminal should probably convert CR/LF to LF.
|
|
|
|
if ((h >= MaxHFiles) || (HFiles[h].fd == -1))
|
|
return ERROR_INVALID_HANDLE;
|
|
|
|
const int rc = write(HFiles[h].fd, buf, buflen);
|
|
if (rc < 0) {
|
|
*actual = 0;
|
|
return ERROR_DISK_FULL; // !!! FIXME: map these errors.
|
|
} // if
|
|
|
|
*actual = (uint32) rc;
|
|
return NO_ERROR;
|
|
} // DosWrite
|
|
|
|
static void runDosExitList(const uint32 why)
|
|
{
|
|
ExitListItem *next = NULL;
|
|
for (ExitListItem *item = GExitList; item; item = next) {
|
|
// don't run any of these more than once:
|
|
// http://www.verycomputer.com/3_c1f6e02c06ed108e_1.htm
|
|
PFNEXITLIST fn = item->fn;
|
|
next = item->next;
|
|
GExitList = next;
|
|
free(item);
|
|
fn(why);
|
|
} // for
|
|
} // runDosExitList
|
|
|
|
VOID DosExit(ULONG action, ULONG exitcode)
|
|
{
|
|
TRACE_NATIVE("DosExit(%u, %u)", (uint) action, (uint) exitcode);
|
|
|
|
// !!! FIXME: what does a value other than 0 or 1 do here?
|
|
if (action == EXIT_THREAD) {
|
|
// !!! FIXME: terminate thread. If last thread: terminate process.
|
|
fprintf(stderr, "FIXME: DosExit(0) should terminate thread, not process.\n");
|
|
fflush(stderr);
|
|
} // if
|
|
|
|
// terminate the process.
|
|
runDosExitList(TC_EXIT);
|
|
|
|
// !!! FIXME: finalize OS/2 DLLs before killing the process?
|
|
|
|
// OS/2's docs say this only keeps the lower 16 bits of exitcode.
|
|
// !!! FIXME: ...but Unix only keeps the lowest 8 bits. Will have to
|
|
// !!! FIXME: tapdance to pass larger values back to OS/2 parent processes.
|
|
exit((int) (exitcode & 0xFFFF));
|
|
} // DosExit
|
|
|
|
APIRET DosExitList(ULONG ordercode, PFNEXITLIST fn)
|
|
{
|
|
TRACE_NATIVE("DosExitList(%u, %p)", (uint) ordercode, fn);
|
|
|
|
if (fn == NULL)
|
|
return ERROR_INVALID_FUNCTION;
|
|
|
|
const uint8 cmd = ordercode & 0xFF;
|
|
const uint8 arg = (ordercode >> 8) & 0xFF;
|
|
ExitListItem *prev = NULL;
|
|
ExitListItem *item = NULL;
|
|
|
|
// !!! FIXME: docs say this is illegal, but have to check what OS/2 actually does here.
|
|
if ((cmd != 1) && (arg != 0))
|
|
return ERROR_INVALID_DATA;
|
|
|
|
switch (cmd) {
|
|
case EXLST_ADD: {
|
|
ExitListItem *newitem = (ExitListItem *) malloc(sizeof (ExitListItem));
|
|
if (!newitem)
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
newitem->fn = fn;
|
|
for (item = GExitList; item; item = item->next) {
|
|
if (item->priority >= ((uint32) arg))
|
|
break;
|
|
prev = item;
|
|
} // for
|
|
if (prev) {
|
|
prev->next = newitem;
|
|
newitem->next = item;
|
|
} else {
|
|
newitem->next = GExitList;
|
|
GExitList = newitem;
|
|
} // else
|
|
return NO_ERROR;
|
|
} // case
|
|
|
|
case EXLST_REMOVE: {
|
|
for (item = GExitList; item; item = item->next) {
|
|
if (item->fn == fn) {
|
|
if (prev)
|
|
prev->next = item->next;
|
|
else
|
|
GExitList = item->next;
|
|
free(item);
|
|
return NO_ERROR;
|
|
} // if
|
|
prev = item;
|
|
} // for
|
|
return ERROR_INVALID_FUNCTION; // !!! FIXME: yeah?
|
|
} // case
|
|
|
|
case EXLST_EXIT:
|
|
return NO_ERROR; // ... just treat this as a no-op, I guess...?
|
|
|
|
default: return ERROR_INVALID_DATA;
|
|
} // switch
|
|
|
|
return NO_ERROR;
|
|
} // DosExitList
|
|
|
|
APIRET DosCreateEventSem(PSZ name, PHEV phev, ULONG attr, BOOL32 state)
|
|
{
|
|
TRACE_NATIVE("DosCreateEventSem('%s', %p, %u, %u)", name, phev, (uint) attr, (uint) state);
|
|
// !!! FIXME: write me
|
|
return NO_ERROR;
|
|
} // DosCreateEventSem
|
|
|
|
APIRET DosCreateMutexSem(PSZ name, PHMTX phmtx, ULONG attr, BOOL32 state)
|
|
{
|
|
TRACE_NATIVE("DosCreateMutexSem('%s', %p, %u, %u)", name, phmtx, (uint) attr, (uint) state);
|
|
// !!! FIXME: write me
|
|
return NO_ERROR;
|
|
} // DosCreateMutexSem
|
|
|
|
// !!! FIXME: this is obviously not correct.
|
|
APIRET DosSetExceptionHandler(PEXCEPTIONREGISTRATIONRECORD rec)
|
|
{
|
|
TRACE_NATIVE("DosSetExceptionHandler(%p)", rec);
|
|
return NO_ERROR;
|
|
} // DosSetExceptionHandler
|
|
|
|
ULONG DosFlatToSel(PVOID ptr)
|
|
{
|
|
// this actually passes the arg in eax instead of the stack.
|
|
//uint32 eax = 0;
|
|
//__asm__ __volatile__ ("" : "=a" (eax));
|
|
//TRACE_NATIVE("DosFlatToSel(%p)", (void *) (size_t) eax);
|
|
TRACE_NATIVE("DosFlatToSel(%p)", ptr);
|
|
return ((ULONG) ((size_t)ptr)) >> 16; // !!! FIXME
|
|
} // DosFlatToSel
|
|
|
|
APIRET DosSetSignalExceptionFocus(BOOL32 flag, PULONG pulTimes)
|
|
{
|
|
TRACE_NATIVE("DosSetSignalExceptionFocus(%u, %p)", (uint) flag, pulTimes);
|
|
|
|
if (flag == 0) {
|
|
if (GLoaderState->main_module->signal_exception_focus_count == 0)
|
|
return ERROR_ALREADY_RESET;
|
|
GLoaderState->main_module->signal_exception_focus_count--;
|
|
} else if (flag == 1) {
|
|
if (GLoaderState->main_module->signal_exception_focus_count == 0xFFFFFFFF)
|
|
return ERROR_NESTING_TOO_DEEP;
|
|
GLoaderState->main_module->signal_exception_focus_count++;
|
|
} else {
|
|
// !!! FIXME: does OS/2 do something if flag != 0 or 1?
|
|
} // else
|
|
|
|
if (pulTimes)
|
|
*pulTimes = GLoaderState->main_module->signal_exception_focus_count;
|
|
|
|
// !!! FIXME: I guess enable/disable SIGINT handler here?
|
|
|
|
return NO_ERROR;
|
|
} // DosSetSignalExceptionFocus
|
|
|
|
APIRET DosSetRelMaxFH(PLONG pincr, PULONG pcurrent)
|
|
{
|
|
TRACE_NATIVE("DosSetRelMaxFH(%p, %p)", pincr, pcurrent);
|
|
|
|
#if 0
|
|
struct rlimit rlim;
|
|
int rc = getrlimit(RLIMIT_NOFILE, &rlim);
|
|
assert(rc == 0); // this shouldn't fail...right?
|
|
if (pcurrent)
|
|
*pcurrent = (ULONG) rlim.rlim_cur;
|
|
|
|
if (pincr) {
|
|
rlim.rlim_cur = (rlim_t) (((LONG) rlim.rlim_cur) + *pincr);
|
|
if (setrlimit(RLIMIT_NOFILE, &rlim) == 0) {
|
|
if (pcurrent)
|
|
*pcurrent = (ULONG) rlim.rlim_cur;
|
|
} // if
|
|
} // if
|
|
#endif
|
|
|
|
if (pincr != NULL) {
|
|
const LONG incr = *pincr;
|
|
// OS/2 API docs say reductions in file handles are advisory, so we
|
|
// ignore them outright. Fight me.
|
|
if (incr > 0) {
|
|
HFileInfo *info = (HFileInfo *) realloc(HFiles, sizeof (HFileInfo) * (MaxHFiles + incr));
|
|
if (info != NULL) {
|
|
HFiles = info;
|
|
for (LONG i = 0; i < incr; i++, info++) {
|
|
info->fd = -1;
|
|
info->type = 0;
|
|
info->attr = 0;
|
|
} // for
|
|
MaxHFiles += incr;
|
|
} // if
|
|
} // if
|
|
} // if
|
|
|
|
if (pcurrent != NULL) {
|
|
*pcurrent = MaxHFiles;
|
|
} // if
|
|
|
|
return NO_ERROR; // always returns NO_ERROR even if it fails.
|
|
} // DosSetRelMaxFH
|
|
|
|
|
|
APIRET DosAllocMem(PPVOID ppb, ULONG cb, ULONG flag)
|
|
{
|
|
TRACE_NATIVE("DosAllocMem(%p, %u, %u)", ppb, (uint) cb, (uint) flag);
|
|
|
|
// !!! FIXME: this API is actually much more complicated than this.
|
|
*ppb = malloc(cb);
|
|
if (!*ppb)
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
return NO_ERROR;
|
|
} // DosAllocMem
|
|
|
|
|
|
APIRET DosSubSetMem(PVOID pbBase, ULONG flag, ULONG cb)
|
|
{
|
|
TRACE_NATIVE("DosSubSetMem(%p, %u, %u)", pbBase, (uint) flag, (uint) cb);
|
|
return NO_ERROR; // !!! FIXME: obviously wrong
|
|
} // DosSubSetMem
|
|
|
|
|
|
APIRET DosSubAllocMem(PVOID pbBase, PPVOID ppb, ULONG cb)
|
|
{
|
|
TRACE_NATIVE("DosSubAllocMem(%p, %p, %u)", pbBase, ppb, (uint) cb);
|
|
*ppb = malloc(cb); // !!! FIXME: obviously wrong
|
|
if (!*ppb)
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
return NO_ERROR;
|
|
} // DosSubAllocMem
|
|
|
|
APIRET DosQueryHType(HFILE hFile, PULONG pType, PULONG pAttr)
|
|
{
|
|
TRACE_NATIVE("DosQueryHType(%u, %p, %p)", (uint) hFile, pType, pAttr);
|
|
|
|
if ((hFile >= MaxHFiles) || (HFiles[hFile].fd == -1))
|
|
return ERROR_INVALID_HANDLE;
|
|
|
|
// OS/2 will dereference a NULL pointer here, but I can't do it...!!!
|
|
if (pType) *pType = HFiles[hFile].type;
|
|
if (pAttr) *pAttr = HFiles[hFile].attr;
|
|
|
|
return NO_ERROR;
|
|
} // DosQueryHType
|
|
|
|
APIRET DosSetMem(PVOID pb, ULONG cb, ULONG flag)
|
|
{
|
|
TRACE_NATIVE("DosSetMem(%p, %u, %u)", pb, (uint) cb, (uint) flag);
|
|
return NO_ERROR; // !!! FIXME: obviously wrong.
|
|
} // DosSetMem
|
|
|
|
APIRET DosGetDateTime(PDATETIME pdt)
|
|
{
|
|
TRACE_NATIVE("DosGetDateTime(%p)", pdt);
|
|
|
|
// we can't use time() for this, since we need sub-second resolution.
|
|
struct timeval tv;
|
|
gettimeofday(&tv, NULL);
|
|
|
|
struct tm ltm;
|
|
localtime_r(&tv.tv_sec, <m);
|
|
|
|
pdt->hours = ltm.tm_hour;
|
|
pdt->minutes = ltm.tm_min;
|
|
pdt->seconds = (ltm.tm_sec == 60) ? 59 : ltm.tm_sec; // !!! FIXME: I assume OS/2 doesn't support leap seconds...
|
|
pdt->hundredths = tv.tv_usec / 10000000; // microseconds to hundreths.
|
|
pdt->day = ltm.tm_mday;
|
|
pdt->month = ltm.tm_mon + 1;
|
|
pdt->year = ltm.tm_year + 1900;
|
|
pdt->timezone = -(ltm.tm_gmtoff / 60); // OS/2 is minutes west of GMT, Unix is seconds east. Convert and flip!
|
|
pdt->weekday = ltm.tm_wday;
|
|
|
|
return NO_ERROR; // never returns failure.
|
|
} // DosGetDateTime
|
|
|
|
|
|
// based on case-insensitive search code from PhysicsFS:
|
|
// https://icculus.org/physfs/
|
|
// It's also zlib-licensed, plus I wrote it. :) --ryan.
|
|
// !!! FIXME: this doesn't work as-is for UTF-8 case folding, since string
|
|
// !!! FIXNE: length can change!
|
|
static int locateOneElement(char *buf)
|
|
{
|
|
if (access(buf, F_OK))
|
|
return 1; // quick rejection: exists in current case.
|
|
|
|
DIR *dirp;
|
|
char *ptr = strrchr(buf, '/'); // find entry at end of path.
|
|
if (ptr == NULL) {
|
|
dirp = opendir("/");
|
|
ptr = buf;
|
|
} else {
|
|
*ptr = '\0';
|
|
dirp = opendir(buf);
|
|
*ptr = '/';
|
|
ptr++; // point past dirsep to entry itself.
|
|
} // else
|
|
|
|
for (struct dirent *dent = readdir(dirp); dent; dent = readdir(dirp)) {
|
|
if (strcasecmp(dent->d_name, ptr) == 0) {
|
|
strcpy(ptr, dent->d_name); // found a match. Overwrite with this case.
|
|
closedir(dirp);
|
|
return 1;
|
|
} // if
|
|
} // for
|
|
|
|
// no match at all...
|
|
closedir(dirp);
|
|
return 0;
|
|
} // locateOneElement
|
|
|
|
int locatePathCaseInsensitive(char *buf)
|
|
{
|
|
int rc;
|
|
char *ptr = buf;
|
|
|
|
if (*ptr == '\0')
|
|
return 0; // Uh...I guess that's success?
|
|
|
|
if (access(buf, F_OK))
|
|
return 0; // quick rejection: exists in current case.
|
|
|
|
while ( (ptr = strchr(ptr + 1, '/')) != NULL ) {
|
|
*ptr = '\0'; // block this path section off
|
|
rc = locateOneElement(buf);
|
|
*ptr = '/'; // restore path separator
|
|
if (!rc)
|
|
return -2; // missing element in path.
|
|
} // while
|
|
|
|
// check final element...
|
|
return locateOneElement(buf) ? 0 : -1;
|
|
} // locatePathCaseInsensitive
|
|
|
|
|
|
static char *makeUnixPath(const char *os2path, APIRET *err)
|
|
{
|
|
if ((strcasecmp(os2path, "NUL") == 0) || (strcasecmp(os2path, "\\DEV\\NUL") == 0))
|
|
os2path = "/dev/null";
|
|
// !!! FIXME: emulate other OS/2 device names (CON, etc).
|
|
//else if (strcasecmp(os2path, "CON") == 0)
|
|
else {
|
|
char drive = os2path[0];
|
|
if ((drive >= 'a') && (drive <= 'z'))
|
|
drive += 'A' - 'a';
|
|
|
|
if ((drive >= 'A') && (drive <= 'Z')) {
|
|
if (os2path[1] == ':') { // it's a drive letter.
|
|
if (drive == 'C')
|
|
os2path += 2; // skip "C:" if it's there.
|
|
else {
|
|
*err = ERROR_NOT_DOS_DISK;
|
|
return NULL;
|
|
} // else
|
|
} // if
|
|
} // if
|
|
} // else
|
|
|
|
const size_t len = strlen(os2path);
|
|
char *retval = (char *) malloc(len + 1);
|
|
if (!retval) {
|
|
*err = ERROR_NOT_ENOUGH_MEMORY;
|
|
return NULL;
|
|
} // else
|
|
|
|
strcpy(retval, os2path);
|
|
|
|
for (char *ptr = strchr(retval, '\\'); ptr; ptr = strchr(ptr + 1, '\\'))
|
|
*ptr = '/'; // convert to Unix-style path separators.
|
|
|
|
locatePathCaseInsensitive(retval);
|
|
|
|
return retval;
|
|
} // makeUnixPath
|
|
|
|
APIRET DosOpen(PSZ pszFileName, PHFILE pHf, PULONG pulAction, ULONG cbFile, ULONG ulAttribute, ULONG fsOpenFlags, ULONG fsOpenMode, PEAOP2 peaop2)
|
|
{
|
|
TRACE_NATIVE("DosOpen('%s', %p, %p, %u, %u, %u, %u, %p)", pszFileName, pHf, pulAction, (uint) cbFile, (uint) ulAttribute, (uint) fsOpenFlags, (uint) fsOpenMode, peaop2);
|
|
|
|
int isReadOnly = 0;
|
|
int flags = 0;
|
|
const ULONG access_mask = OPEN_ACCESS_READONLY | OPEN_ACCESS_WRITEONLY | OPEN_ACCESS_READWRITE;
|
|
switch (fsOpenMode & access_mask) {
|
|
case OPEN_ACCESS_READONLY: isReadOnly = 1; flags |= O_RDONLY; break;
|
|
case OPEN_ACCESS_WRITEONLY: flags |= O_WRONLY; break;
|
|
case OPEN_ACCESS_READWRITE: flags |= O_RDWR; break;
|
|
default: return ERROR_INVALID_PARAMETER;
|
|
} // switch
|
|
|
|
if (isReadOnly && (cbFile != 0))
|
|
return ERROR_INVALID_PARAMETER;
|
|
else if (ulAttribute & FILE_DIRECTORY)
|
|
return ERROR_INVALID_PARAMETER; // !!! FIXME: I assume you can't create a directory with DosOpen...right?
|
|
else if (isReadOnly && ((fsOpenFlags & 0xF0) == OPEN_ACTION_CREATE_IF_NEW))
|
|
return ERROR_INVALID_PARAMETER; // !!! FIXME: is this invalid on OS/2?
|
|
else if (isReadOnly && ((fsOpenFlags & 0x0F) == OPEN_ACTION_REPLACE_IF_EXISTS))
|
|
return ERROR_INVALID_PARAMETER; // !!! FIXME: is this invalid on OS/2?
|
|
else if (fsOpenFlags & 0xfffffe00) // bits (1<<8) through (1<<31) are reserved, must be zero.
|
|
return ERROR_INVALID_PARAMETER;
|
|
else if (fsOpenFlags & OPEN_FLAGS_DASD) // no good is going to come of this.
|
|
return ERROR_OPEN_FAILED;
|
|
else if (fsOpenMode & 0xffff0000) // bits (1<<16) through (1<<31) are reserved, must be zero.
|
|
return ERROR_INVALID_PARAMETER;
|
|
|
|
if (peaop2 != NULL) {
|
|
FIXME("EAs not yet implemented");
|
|
return ERROR_OPEN_FAILED;
|
|
}
|
|
|
|
switch (fsOpenFlags & 0xF0) {
|
|
case OPEN_ACTION_FAIL_IF_NEW:
|
|
break; // just don't O_CREAT and you're fine.
|
|
|
|
case OPEN_ACTION_CREATE_IF_NEW:
|
|
flags |= O_CREAT | O_EXCL; // the O_EXCL is intentional! see below.
|
|
break;
|
|
} // switch
|
|
|
|
int mustNotExist = 0;
|
|
int isExclusive = 0;
|
|
int isReplacing = 0;
|
|
|
|
switch (fsOpenFlags & 0x0F) {
|
|
case OPEN_ACTION_FAIL_IF_EXISTS:
|
|
if (isReadOnly)
|
|
mustNotExist = 1;
|
|
else {
|
|
isExclusive = 1;
|
|
flags |= O_CREAT | O_EXCL;
|
|
} // else
|
|
break;
|
|
|
|
case OPEN_ACTION_OPEN_IF_EXISTS:
|
|
break; // nothing to do here.
|
|
|
|
case OPEN_ACTION_REPLACE_IF_EXISTS: // right now, we already failed above if readonly.
|
|
isReplacing = 1;
|
|
flags |= O_TRUNC; // have the open call nuke it, and then we'll ftruncate to grow it if necessary.
|
|
break;
|
|
} // switch
|
|
|
|
if (fsOpenMode & OPEN_FLAGS_WRITE_THROUGH)
|
|
flags |= O_SYNC; // !!! FIXME: this flag is supposed to drop when inherited by children, but fcntl() can't do that on Linux.
|
|
|
|
if (fsOpenMode & OPEN_FLAGS_NOINHERIT)
|
|
flags |= O_CLOEXEC;
|
|
|
|
if (fsOpenMode & OPEN_FLAGS_FAIL_ON_ERROR)
|
|
FIXME("need other file i/o APIs to do a system dialog box if this handle has i/o failures!");
|
|
|
|
// O_DIRECT isn't supported on ZFS-on-Linux, so I'm already not on board,
|
|
// but also: do we care if programs intended to run on a system with a
|
|
// few megabytes of RAM--on an OS that didn't have a resizeable file
|
|
// cache!--writes into a multi-gigabyte machine's flexible cache? I don't!
|
|
//if (fsOpenMode & OPEN_FLAGS_NO_CACHE)
|
|
// flags |= O_DIRECT;
|
|
|
|
FIXME("There are fsOpenMode flags we currently ignore (like sharing support)");
|
|
|
|
const mode_t mode = S_IRUSR | ((ulAttribute & FILE_READONLY) ? 0 : S_IWUSR);
|
|
FIXME("Most of the file attributes don't make sense on Unix, but we could stuff them in EAs");
|
|
|
|
HFileInfo *info = HFiles;
|
|
uint32 i;
|
|
|
|
// !!! FIXME: mutex this.
|
|
for (i = 0; i < MaxHFiles; i++, info++) {
|
|
if (info->fd == -1) // available?
|
|
break;
|
|
} // for
|
|
|
|
if (i == MaxHFiles)
|
|
return ERROR_TOO_MANY_OPEN_FILES;
|
|
|
|
const HFILE hf = i;
|
|
|
|
APIRET err = NO_ERROR;
|
|
char *unixpath = makeUnixPath(pszFileName, &err);
|
|
if (!unixpath) {
|
|
info->fd = -1;
|
|
return err;
|
|
} // if
|
|
|
|
printf("DosOpen: converted '%s' to '%s'\n", pszFileName, unixpath);
|
|
|
|
info->fd = open(unixpath, flags, mode);
|
|
|
|
// if failed trying exclusive-create because file already exists, but we
|
|
// didn't explicitly _need_ exclusivity, retry without O_EXCL. We always
|
|
// try O_EXCL at first when using O_CREAT, so we can tell atomically if
|
|
// we were the one that created the file, to satisfy pulAction.
|
|
int existed = 0;
|
|
if ((info->fd == -1) && (flags & (O_CREAT|O_EXCL)) && (errno == EEXIST) && !isExclusive) {
|
|
existed = 1;
|
|
info->fd = open(unixpath, flags & ~O_EXCL, mode);
|
|
} else if (info->fd != -1) {
|
|
existed = 1;
|
|
} // else if
|
|
free(unixpath);
|
|
|
|
if (info->fd != -1) {
|
|
if (mustNotExist) {
|
|
close(info->fd);
|
|
info->fd = -1;
|
|
return ERROR_OPEN_FAILED; // !!! FIXME: what error does OS/2 return for this?
|
|
} else if ( (!existed || isReplacing) && (cbFile > 0) ) {
|
|
if (ftruncate(info->fd, cbFile) == -1) {
|
|
const int e = errno;
|
|
close(info->fd);
|
|
info->fd = -1;
|
|
errno = e; // let the switch below sort out the OS/2 error code.
|
|
} // if
|
|
} // else if
|
|
} // if
|
|
|
|
if (info->fd != -1) {
|
|
if (isReplacing)
|
|
FIXME("Replacing a file should delete all its EAs, too");
|
|
} // if
|
|
|
|
if (info->fd == -1) {
|
|
switch (errno) {
|
|
case EACCES: return ERROR_ACCESS_DENIED;
|
|
case EDQUOT: return ERROR_CANNOT_MAKE;
|
|
case EEXIST: return ERROR_CANNOT_MAKE;
|
|
case EISDIR: return ERROR_ACCESS_DENIED;
|
|
case EMFILE: return ERROR_TOO_MANY_OPEN_FILES;
|
|
case ENFILE: return ERROR_TOO_MANY_OPEN_FILES;
|
|
case ENAMETOOLONG: return ERROR_FILENAME_EXCED_RANGE;
|
|
case ENOSPC: return ERROR_DISK_FULL;
|
|
case ENOMEM: return ERROR_NOT_ENOUGH_MEMORY;
|
|
case ENOENT: return ERROR_FILE_NOT_FOUND; // !!! FIXME: could be PATH_NOT_FOUND too, depending on circumstances.
|
|
case ENOTDIR: return ERROR_PATH_NOT_FOUND;
|
|
case EPERM: return ERROR_ACCESS_DENIED;
|
|
case EROFS: return ERROR_ACCESS_DENIED;
|
|
case ETXTBSY: return ERROR_ACCESS_DENIED;
|
|
default: return ERROR_OPEN_FAILED; // !!! FIXME: debug logging about missin errno case.
|
|
} // switch
|
|
__builtin_unreachable();
|
|
} // if
|
|
|
|
if (isReplacing)
|
|
*pulAction = FILE_TRUNCATED;
|
|
else if (existed)
|
|
*pulAction = FILE_EXISTED;
|
|
else
|
|
*pulAction = FILE_CREATED;
|
|
|
|
*pHf = hf;
|
|
return NO_ERROR;
|
|
} // DosOpen
|
|
|
|
// end of doscalls.c ...
|
|
|