#define INCL_DOS
#define INCL_NOPM
#define INCL_DOSFILEMGR
#define INCL_DOSMEMMGR
#define INCL_DOSERRORS
/* These 3 are needed for compile if os2.h includes os2tk.h, not os2emx.h */
#define INCL_DOSPROCESS
#define SPU_DISABLESUPPRESSION 0
#define SPU_ENABLESUPPRESSION 1
#include <os2.h>
#include "dlfcn.h"
#include <sys/uflags.h>
/*
* Various Unix compatibility functions for OS/2
*/
#include <stdio.h>
#include <errno.h>
#include <limits.h>
#include <process.h>
#include <fcntl.h>
#include <pwd.h>
#include <grp.h>
#define PERLIO_NOT_STDIO 0
#include "EXTERN.h"
#include "perl.h"
#ifdef USE_5005THREADS
typedef void (*emx_startroutine)(void *);
typedef void* (*pthreads_startroutine)(void *);
enum pthreads_state {
pthreads_st_none = 0,
pthreads_st_run,
pthreads_st_exited,
pthreads_st_detached,
pthreads_st_waited,
};
const char *pthreads_states[] = {
"uninit",
"running",
"exited",
"detached",
"waited for",
};
typedef struct {
void *status;
perl_cond cond;
enum pthreads_state state;
} thread_join_t;
thread_join_t *thread_join_data;
int thread_join_count;
perl_mutex start_thread_mutex;
int
pthread_join(perl_os_thread tid, void **status)
{
MUTEX_LOCK(&start_thread_mutex);
switch (thread_join_data[tid].state) {
case pthreads_st_exited:
thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */
MUTEX_UNLOCK(&start_thread_mutex);
*status = thread_join_data[tid].status;
break;
case pthreads_st_waited:
MUTEX_UNLOCK(&start_thread_mutex);
Perl_croak_nocontext("join with a thread with a waiter");
break;
case pthreads_st_run:
thread_join_data[tid].state = pthreads_st_waited;
COND_INIT(&thread_join_data[tid].cond);
MUTEX_UNLOCK(&start_thread_mutex);
COND_WAIT(&thread_join_data[tid].cond, NULL);
COND_DESTROY(&thread_join_data[tid].cond);
thread_join_data[tid].state = pthreads_st_none; /* Ready to reuse */
*status = thread_join_data[tid].status;
break;
default:
MUTEX_UNLOCK(&start_thread_mutex);
Perl_croak_nocontext("join: unknown thread state: '%s'",
pthreads_states[thread_join_data[tid].state]);
break;
}
return 0;
}
void
pthread_startit(void *arg)
{
/* Thread is already started, we need to transfer control only */
pthreads_startroutine start_routine = *((pthreads_startroutine*)arg);
int tid = pthread_self();
void *retval;
arg = ((void**)arg)[1];
if (tid >= thread_join_count) {
int oc = thread_join_count;
thread_join_count = tid + 5 + tid/5;
if (thread_join_data) {
Renew(thread_join_data, thread_join_count, thread_join_t);
Zero(thread_join_data + oc, thread_join_count - oc, thread_join_t);
} else {
Newz(1323, thread_join_data, thread_join_count, thread_join_t);
}
}
if (thread_join_data[tid].state != pthreads_st_none)
Perl_croak_nocontext("attempt to reuse thread id %i", tid);
thread_join_data[tid].state = pthreads_st_run;
/* Now that we copied/updated the guys, we may release the caller... */
MUTEX_UNLOCK(&start_thread_mutex);
thread_join_data[tid].status = (*start_routine)(arg);
switch (thread_join_data[tid].state) {
case pthreads_st_waited:
COND_SIGNAL(&thread_join_data[tid].cond);
break;
default:
thread_join_data[tid].state = pthreads_st_exited;
break;
}
}
int
pthread_create(perl_os_thread *tid, const pthread_attr_t *attr,
void *(*start_routine)(void*), void *arg)
{
void *args[2];
args[0] = (void*)start_routine;
args[1] = arg;
MUTEX_LOCK(&start_thread_mutex);
*tid = _beginthread(pthread_startit, /*stack*/ NULL,
/*stacksize*/ 10*1024*1024, (void*)args);
MUTEX_LOCK(&start_thread_mutex);
MUTEX_UNLOCK(&start_thread_mutex);
return *tid ? 0 : EINVAL;
}
int
pthread_detach(perl_os_thread tid)
{
MUTEX_LOCK(&start_thread_mutex);
switch (thread_join_data[tid].state) {
case pthreads_st_waited:
MUTEX_UNLOCK(&start_thread_mutex);
Perl_croak_nocontext("detach on a thread with a waiter");
break;
case pthreads_st_run:
thread_join_data[tid].state = pthreads_st_detached;
MUTEX_UNLOCK(&start_thread_mutex);
break;
default:
MUTEX_UNLOCK(&start_thread_mutex);
Perl_croak_nocontext("detach: unknown thread state: '%s'",
pthreads_states[thread_join_data[tid].state]);
break;
}
return 0;
}
/* This is a very bastardized version: */
int
os2_cond_wait(perl_cond *c, perl_mutex *m)
{
int rc;
STRLEN n_a;
if ((rc = DosResetEventSem(*c,&n_a)) && (rc != ERROR_ALREADY_RESET))
Perl_croak_nocontext("panic: COND_WAIT-reset: rc=%i", rc);
if (m) MUTEX_UNLOCK(m);
if (CheckOSError(DosWaitEventSem(*c,SEM_INDEFINITE_WAIT))
&& (rc != ERROR_INTERRUPT))
Perl_croak_nocontext("panic: COND_WAIT: rc=%i", rc);
if (rc == ERROR_INTERRUPT)
errno = EINTR;
if (m) MUTEX_LOCK(m);
}
#endif
static int exe_is_aout(void);
/*****************************************************************************/
/* 2.1 would not resolve symbols on demand, and has no ExtLIBPATH. */
#define C_ARR_LEN(sym) (sizeof(sym)/sizeof(*sym))
struct dll_handle {
const char *modname;
HMODULE handle;
};
static struct dll_handle doscalls_handle = {"doscalls", 0};
static struct dll_handle tcp_handle = {"tcp32dll", 0};
static struct dll_handle pmwin_handle = {"pmwin", 0};
static struct dll_handle rexx_handle = {"rexx", 0};
static struct dll_handle rexxapi_handle = {"rexxapi", 0};
static struct dll_handle sesmgr_handle = {"sesmgr", 0};
static struct dll_handle pmshapi_handle = {"pmshapi", 0};
/* This should match enum entries_ordinals defined in os2ish.h. */
static const struct {
struct dll_handle *dll;
const char *entryname;
int entrypoint;
} loadOrdinals[ORD_NENTRIES] = {
{&doscalls_handle, NULL, 874}, /* DosQueryExtLibpath */
{&doscalls_handle, NULL, 873}, /* DosSetExtLibpath */
{&doscalls_handle, NULL, 460}, /* DosVerifyPidTid */
{&tcp_handle, "SETHOSTENT", 0},
{&tcp_handle, "SETNETENT" , 0},
{&tcp_handle, "SETPROTOENT", 0},
{&tcp_handle, "SETSERVENT", 0},
{&tcp_handle, "GETHOSTENT", 0},
{&tcp_handle, "GETNETENT" , 0},
{&tcp_handle, "GETPROTOENT", 0},
{&tcp_handle, "GETSERVENT", 0},
{&tcp_handle, "ENDHOSTENT", 0},
{&tcp_handle, "ENDNETENT", 0},
{&tcp_handle, "ENDPROTOENT", 0},
{&tcp_handle, "ENDSERVENT", 0},
{&pmwin_handle, NULL, 763}, /* WinInitialize */
{&pmwin_handle, NULL, 716}, /* WinCreateMsgQueue */
{&pmwin_handle, NULL, 726}, /* WinDestroyMsgQueue */
{&pmwin_handle, NULL, 918}, /* WinPeekMsg */
{&pmwin_handle, NULL, 915}, /* WinGetMsg */
{&pmwin_handle, NULL, 912}, /* WinDispatchMsg */
{&pmwin_handle, NULL, 753}, /* WinGetLastError */
{&pmwin_handle, NULL, 705}, /* WinCancelShutdown */
/* These are needed in extensions.
How to protect PMSHAPI: it comes through EMX functions? */
{&rexx_handle, "RexxStart", 0},
{&rexx_handle, "RexxVariablePool", 0},
{&rexxapi_handle, "RexxRegisterFunctionExe", 0},
{&rexxapi_handle, "RexxDeregisterFunction", 0},
{&sesmgr_handle, "DOSSMSETTITLE", 0}, /* Would not work runtime-loaded */
{&pmshapi_handle, "PRF32QUERYPROFILESIZE", 0},
{&pmshapi_handle, "PRF32OPENPROFILE", 0},
{&pmshapi_handle, "PRF32CLOSEPROFILE", 0},
{&pmshapi_handle, "PRF32QUERYPROFILE", 0},
{&pmshapi_handle, "PRF32RESET", 0},
{&pmshapi_handle, "PRF32QUERYPROFILEDATA", 0},
{&pmshapi_handle, "PRF32WRITEPROFILEDATA", 0},
/* At least some of these do not work by name, since they need
WIN32 instead of WIN... */
#if 0
These were generated with
nm I:\emx\lib\os2.a | fgrep -f API-list | grep = > API-list-entries
perl -wnle "next unless /^0+\s+E\s+_(\w+)=(\w+).(\d+)/; print qq( ORD_$1,)" API-list-entries > API-list-ORD_
perl -wnle "next unless /^0+\s+E\s+_(\w+)=(\w+).(\d+)/; print qq( {${2}_handle, NULL, $3},\t\t/* $1 */)" WinSwitch-API-list-entries >API-list-entry
#endif
{&pmshapi_handle, NULL, 123}, /* WinChangeSwitchEntry */
{&pmshapi_handle, NULL, 124}, /* WinQuerySwitchEntry */
{&pmshapi_handle, NULL, 125}, /* WinQuerySwitchHandle */
{&pmshapi_handle, NULL, 126}, /* WinQuerySwitchList */
{&pmshapi_handle, NULL, 131}, /* WinSwitchToProgram */
{&pmwin_handle, NULL, 702}, /* WinBeginEnumWindows */
{&pmwin_handle, NULL, 737}, /* WinEndEnumWindows */
{&pmwin_handle, NULL, 740}, /* WinEnumDlgItem */
{&pmwin_handle, NULL, 756}, /* WinGetNextWindow */
{&pmwin_handle, NULL, 768}, /* WinIsChild */
{&pmwin_handle, NULL, 799}, /* WinQueryActiveWindow */
{&pmwin_handle, NULL, 805}, /* WinQueryClassName */
{&pmwin_handle, NULL, 817}, /* WinQueryFocus */
{&pmwin_handle, NULL, 834}, /* WinQueryWindow */
{&pmwin_handle, NULL, 837}, /* WinQueryWindowPos */
{&pmwin_handle, NULL, 838}, /* WinQueryWindowProcess */
{&pmwin_handle, NULL, 841}, /* WinQueryWindowText */
{&pmwin_handle, NULL, 842}, /* WinQueryWindowTextLength */
{&pmwin_handle, NULL, 860}, /* WinSetFocus */
{&pmwin_handle, NULL, 875}, /* WinSetWindowPos */
{&pmwin_handle, NULL, 877}, /* WinSetWindowText */
{&pmwin_handle, NULL, 883}, /* WinShowWindow */
{&pmwin_handle, NULL, 772}, /* WinIsWindow */
{&pmwin_handle, NULL, 899}, /* WinWindowFromId */
{&pmwin_handle, NULL, 900}, /* WinWindowFromPoint */
{&pmwin_handle, NULL, 919}, /* WinPostMsg */
{&pmwin_handle, NULL, 735}, /* WinEnableWindow */
{&pmwin_handle, NULL, 736}, /* WinEnableWindowUpdate */
{&pmwin_handle, NULL, 773}, /* WinIsWindowEnabled */
{&pmwin_handle, NULL, 774}, /* WinIsWindowShowing */
{&pmwin_handle, NULL, 775}, /* WinIsWindowVisible */
{&pmwin_handle, NULL, 839}, /* WinQueryWindowPtr */
{&pmwin_handle, NULL, 843}, /* WinQueryWindowULong */
{&pmwin_handle, NULL, 844}, /* WinQueryWindowUShort */
{&pmwin_handle, NULL, 874}, /* WinSetWindowBits */
{&pmwin_handle, NULL, 876}, /* WinSetWindowPtr */
{&pmwin_handle, NULL, 878}, /* WinSetWindowULong */
{&pmwin_handle, NULL, 879}, /* WinSetWindowUShort */
{&pmwin_handle, NULL, 813}, /* WinQueryDesktopWindow */
{&pmwin_handle, NULL, 851}, /* WinSetActiveWindow */
{&doscalls_handle, NULL, 360}, /* DosQueryModFromEIP */
};
static PFN ExtFCN[C_ARR_LEN(loadOrdinals)]; /* Labeled by ord ORD_*. */
const Perl_PFN * const pExtFCN = ExtFCN;
struct PMWIN_entries_t PMWIN_entries;
HMODULE
loadModule(const char *modname, int fail)
{
HMODULE h = (HMODULE)dlopen(modname, 0);
if (!h && fail)
Perl_croak_nocontext("Error loading module '%s': %s",
modname, dlerror());
return h;
}
PFN
loadByOrdinal(enum entries_ordinals ord, int fail)
{
if (ExtFCN[ord] == NULL) {
PFN fcn = (PFN)-1;
APIRET rc;
if (!loadOrdinals[ord].dll->handle)
loadOrdinals[ord].dll->handle
= loadModule(loadOrdinals[ord].dll->modname, fail);
if (!loadOrdinals[ord].dll->handle)
return 0; /* Possible with FAIL==0 only */
if (CheckOSError(DosQueryProcAddr(loadOrdinals[ord].dll->handle,
loadOrdinals[ord].entrypoint,
loadOrdinals[ord].entryname,&fcn))) {
char buf[20], *s = (char*)loadOrdinals[ord].entryname;
if (!fail)
return 0;
if (!s)
sprintf(s = buf, "%d", loadOrdinals[ord].entrypoint);
Perl_croak_nocontext(
"This version of OS/2 does not support %s.%s",
loadOrdinals[ord].dll->modname, s);
}
ExtFCN[ord] = fcn;
}
if ((long)ExtFCN[ord] == -1)
Perl_croak_nocontext("panic queryaddr");
return ExtFCN[ord];
}
void
init_PMWIN_entries(void)
{
int i;
for (i = ORD_WinInitialize; i <= ORD_WinCancelShutdown; i++)
((PFN*)&PMWIN_entries)[i - ORD_WinInitialize] = loadByOrdinal(i, 1);
}
/*****************************************************/
/* socket forwarders without linking with tcpip DLLs */
DeclFuncByORD(struct hostent *, gethostent, ORD_GETHOSTENT, (void), ())
DeclFuncByORD(struct netent *, getnetent, ORD_GETNETENT, (void), ())
DeclFuncByORD(struct protoent *, getprotoent, ORD_GETPROTOENT, (void), ())
DeclFuncByORD(struct servent *, getservent, ORD_GETSERVENT, (void), ())
DeclVoidFuncByORD(sethostent, ORD_SETHOSTENT, (int x), (x))
DeclVoidFuncByORD(setnetent, ORD_SETNETENT, (int x), (x))
DeclVoidFuncByORD(setprotoent, ORD_SETPROTOENT, (int x), (x))
DeclVoidFuncByORD(setservent, ORD_SETSERVENT, (int x), (x))
DeclVoidFuncByORD(endhostent, ORD_ENDHOSTENT, (void), ())
DeclVoidFuncByORD(endnetent, ORD_ENDNETENT, (void), ())
DeclVoidFuncByORD(endprotoent, ORD_ENDPROTOENT, (void), ())
DeclVoidFuncByORD(endservent, ORD_ENDSERVENT, (void), ())
/* priorities */
static signed char priors[] = {0, 1, 3, 2}; /* Last two interchanged,
self inverse. */
#define QSS_INI_BUFFER 1024
ULONG (*pDosVerifyPidTid) (PID pid, TID tid);
static int pidtid_lookup;
PQTOPLEVEL
get_sysinfo(ULONG pid, ULONG flags)
{
char *pbuffer;
ULONG rc, buf_len = QSS_INI_BUFFER;
PQTOPLEVEL psi;
if (!pidtid_lookup) {
pidtid_lookup = 1;
*(PFN*)&pDosVerifyPidTid = loadByOrdinal(ORD_DosVerifyPidTid, 0);
}
if (pDosVerifyPidTid) { /* Warp3 or later */
/* Up to some fixpak QuerySysState() kills the system if a non-existent
pid is used. */
if (CheckOSError(pDosVerifyPidTid(pid, 1)))
return 0;
}
New(1322, pbuffer, buf_len, char);
/* QSS_PROCESS | QSS_MODULE | QSS_SEMAPHORES | QSS_SHARED */
rc = QuerySysState(flags, pid, pbuffer, buf_len);
while (rc == ERROR_BUFFER_OVERFLOW) {
Renew(pbuffer, buf_len *= 2, char);
rc = QuerySysState(flags, pid, pbuffer, buf_len);
}
if (rc) {
FillOSError(rc);
Safefree(pbuffer);
return 0;
}
psi = (PQTOPLEVEL)pbuffer;
if (psi && pid && pid != psi->procdata->pid) {
Safefree(psi);
Perl_croak_nocontext("panic: wrong pid in sysinfo");
}
return psi;
}
#define PRIO_ERR 0x1111
static ULONG
sys_prio(pid)
{
ULONG prio;
PQTOPLEVEL psi;
if (!pid)
return PRIO_ERR;
psi = get_sysinfo(pid, QSS_PROCESS);
if (!psi)
return PRIO_ERR;
prio = psi->procdata->threads->priority;
Safefree(psi);
return prio;
}
int
setpriority(int which, int pid, int val)
{
ULONG rc, prio = sys_prio(pid);
if (!(_emx_env & 0x200)) return 0; /* Nop if not OS/2. */
if (priors[(32 - val) >> 5] + 1 == (prio >> 8)) {
/* Do not change class. */
return CheckOSError(DosSetPriority((pid < 0)
? PRTYS_PROCESSTREE : PRTYS_PROCESS,
0,
(32 - val) % 32 - (prio & 0xFF),
abs(pid)))
? -1 : 0;
} else /* if ((32 - val) % 32 == (prio & 0xFF)) */ {
/* Documentation claims one can change both class and basevalue,
* but I find it wrong. */
/* Change class, but since delta == 0 denotes absolute 0, correct. */
if (CheckOSError(DosSetPriority((pid < 0)
? PRTYS_PROCESSTREE : PRTYS_PROCESS,
priors[(32 - val) >> 5] + 1,
0,
abs(pid))))
return -1;
if ( ((32 - val) % 32) == 0 ) return 0;
return CheckOSError(DosSetPriority((pid < 0)
? PRTYS_PROCESSTREE : PRTYS_PROCESS,
0,
(32 - val) % 32,
abs(pid)))
? -1 : 0;
}
}
int
getpriority(int which /* ignored */, int pid)
{
ULONG ret;
if (!(_emx_env & 0x200)) return 0; /* Nop if not OS/2. */
ret = sys_prio(pid);
if (ret == PRIO_ERR) {
return -1;
}
return (1 - priors[((ret >> 8) - 1)])*32 - (ret & 0xFF);
}
/*****************************************************************************/
/* spawn */
int emx_runtime_init; /* If 1, we need to manually init it */
int emx_exception_init; /* If 1, we need to manually set it */
/* There is no big sense to make it thread-specific, since signals
are delivered to thread 1 only. XXXX Maybe make it into an array? */
static int spawn_pid;
static int spawn_killed;
static Signal_t
spawn_sighandler(int sig)
{
/* Some programs do not arrange for the keyboard signals to be
delivered to them. We need to deliver the signal manually. */
/* We may get a signal only if
a) kid does not receive keyboard signal: deliver it;
b) kid already died, and we get a signal. We may only hope
that the pid number was not reused.
*/
if (spawn_killed)
sig = SIGKILL; /* Try harder. */
kill(spawn_pid, sig);
spawn_killed = 1;
}
static int
result(pTHX_ int flag, int pid)
{
int r, status;
Signal_t (*ihand)(); /* place to save signal during system() */
Signal_t (*qhand)(); /* place to save signal during system() */
#ifndef __EMX__
RESULTCODES res;
int rpid;
#endif
if (pid < 0 || flag != 0)
return pid;
#ifdef __EMX__
spawn_pid = pid;
spawn_killed = 0;
ihand = rsignal(SIGINT, &spawn_sighandler);
qhand = rsignal(SIGQUIT, &spawn_sighandler);
do {
r = wait4pid(pid, &status, 0);
} while (r == -1 && errno == EINTR);
rsignal(SIGINT, ihand);
rsignal(SIGQUIT, qhand);
PL_statusvalue = (U16)status;
if (r < 0)
return -1;
return status & 0xFFFF;
#else
ihand = rsignal(SIGINT, SIG_IGN);
r = DosWaitChild(DCWA_PROCESS, DCWW_WAIT, &res, &rpid, pid);
rsignal(SIGINT, ihand);
PL_statusvalue = res.codeResult << 8 | res.codeTerminate;
if (r)
return -1;
return PL_statusvalue;
#endif
}
enum execf_t {
EXECF_SPAWN,
EXECF_EXEC,
EXECF_TRUEEXEC,
EXECF_SPAWN_NOWAIT,
EXECF_SPAWN_BYFLAG,
EXECF_SYNC
};
/* const char* const ptypes[] = { "FS", "DOS", "VIO", "PM", "DETACH" }; */
static int
my_type()
{
int rc;
TIB *tib;
PIB *pib;
if (!(_emx_env & 0x200)) return 1; /* not OS/2. */
if (CheckOSError(DosGetInfoBlocks(&tib, &pib)))
return -1;
return (pib->pib_ultype);
}
static ULONG
file_type(char *path)
{
int rc;
ULONG apptype;
if (!(_emx_env & 0x200))
Perl_croak_nocontext("file_type not implemented on DOS"); /* not OS/2. */
if (CheckOSError(DosQueryAppType(path, &apptype))) {
switch (rc) {
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
return -1;
case ERROR_ACCESS_DENIED: /* Directory with this name found? */
return -3;
default: /* Found, but not an
executable, or some other
read error. */
return -2;
}
}
return apptype;
}
static ULONG os2_mytype;
/* Spawn/exec a program, revert to shell if needed. */
/* global PL_Argv[] contains arguments. */
extern ULONG _emx_exception ( EXCEPTIONREPORTRECORD *,
EXCEPTIONREGISTRATIONRECORD *,
CONTEXTRECORD *,
void *);
int
do_spawn_ve(pTHX_ SV *really, U32 flag, U32 execf, char *inicmd, U32 addflag)
{
int trueflag = flag;
int rc, pass = 1;
char *tmps;
char *args[4];
static char * fargs[4]
= { "/bin/sh", "-c", "\"$@\"", "spawn-via-shell", };
char **argsp = fargs;
int nargs = 4;
int force_shell;
int new_stderr = -1, nostderr = 0;
int fl_stderr = 0;
STRLEN n_a;
char *buf;
PerlIO *file;
if (flag == P_WAIT)
flag = P_NOWAIT;
retry:
if (strEQ(PL_Argv[0],"/bin/sh"))
PL_Argv[0] = PL_sh_path;
/* We should check PERL_SH* and PERLLIB_* as well? */
if (!really || !*(tmps = SvPV(really, n_a)))
tmps = PL_Argv[0];
if (tmps[0] != '/' && tmps[0] != '\\'
&& !(tmps[0] && tmps[1] == ':'
&& (tmps[2] == '/' || tmps[2] != '\\'))
) /* will spawnvp use PATH? */
TAINT_ENV(); /* testing IFS here is overkill, probably */
reread:
force_shell = 0;
if (_emx_env & 0x200) { /* OS/2. */
int type = file_type(tmps);
type_again:
if (type == -1) { /* Not found */
errno = ENOENT;
rc = -1;
goto do_script;
}
else if (type == -2) { /* Not an EXE */
errno = ENOEXEC;
rc = -1;
goto do_script;
}
else if (type == -3) { /* Is a directory? */
/* Special-case this */
char tbuf[512];
int l = strlen(tmps);
if (l + 5 <= sizeof tbuf) {
strcpy(tbuf, tmps);
strcpy(tbuf + l, ".exe");
type = file_type(tbuf);
if (type >= -3)
goto type_again;
}
errno = ENOEXEC;
rc = -1;
goto do_script;
}
switch (type & 7) {
/* Ignore WINDOWCOMPAT and FAPI, start them the same type we are. */
case FAPPTYP_WINDOWAPI:
{
if (os2_mytype != 3) { /* not PM */
if (flag == P_NOWAIT)
flag = P_PM;
else if ((flag & 7) != P_PM && (flag & 7) != P_SESSION)
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Starting PM process with flag=%d, mytype=%d",
flag, os2_mytype);
}
}
break;
case FAPPTYP_NOTWINDOWCOMPAT:
{
if (os2_mytype != 0) { /* not full screen */
if (flag == P_NOWAIT)
flag = P_SESSION;
else if ((flag & 7) != P_SESSION)
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Starting Full Screen process with flag=%d, mytype=%d",
flag, os2_mytype);
}
}
break;
case FAPPTYP_NOTSPEC:
/* Let the shell handle this... */
force_shell = 1;
buf = ""; /* Pacify a warning */
file = 0; /* Pacify a warning */
goto doshell_args;
break;
}
}
if (addflag) {
addflag = 0;
new_stderr = dup(2); /* Preserve stderr */
if (new_stderr == -1) {
if (errno == EBADF)
nostderr = 1;
else {
rc = -1;
goto finish;
}
} else
fl_stderr = fcntl(2, F_GETFD);
rc = dup2(1,2);
if (rc == -1)
goto finish;
fcntl(new_stderr, F_SETFD, FD_CLOEXEC);
}
#if 0
rc = result(aTHX_ trueflag, spawnvp(flag,tmps,PL_Argv));
#else
if (execf == EXECF_TRUEEXEC)
rc = execvp(tmps,PL_Argv);
else if (execf == EXECF_EXEC)
rc = spawnvp(trueflag | P_OVERLAY,tmps,PL_Argv);
else if (execf == EXECF_SPAWN_NOWAIT)
rc = spawnvp(flag,tmps,PL_Argv);
else if (execf == EXECF_SYNC)
rc = spawnvp(trueflag,tmps,PL_Argv);
else /* EXECF_SPAWN, EXECF_SPAWN_BYFLAG */
rc = result(aTHX_ trueflag,
spawnvp(flag,tmps,PL_Argv));
#endif
if (rc < 0 && pass == 1
&& (tmps == PL_Argv[0])) { /* Cannot transfer `really' via shell. */
do_script:
{
int err = errno;
if (err == ENOENT || err == ENOEXEC) {
/* No such file, or is a script. */
/* Try adding script extensions to the file name, and
search on PATH. */
char *scr = find_script(PL_Argv[0], TRUE, NULL, 0);
if (scr) {
char *s = 0, *s1;
SV *scrsv = sv_2mortal(newSVpv(scr, 0));
SV *bufsv = sv_newmortal();
Safefree(scr);
scr = SvPV(scrsv, n_a); /* free()ed later */
file = PerlIO_open(scr, "r");
PL_Argv[0] = scr;
if (!file)
goto panic_file;
buf = sv_gets(bufsv, file, 0 /* No append */);
if (!buf)
buf = ""; /* XXX Needed? */
if (!buf[0]) { /* Empty... */
PerlIO_close(file);
/* Special case: maybe from -Zexe build, so
there is an executable around (contrary to
documentation, DosQueryAppType sometimes (?)
does not append ".exe", so we could have
reached this place). */
sv_catpv(scrsv, ".exe");
scr = SvPV(scrsv, n_a); /* Reload */
if (PerlLIO_stat(scr,&PL_statbuf) >= 0
&& !S_ISDIR(PL_statbuf.st_mode)) { /* Found */
tmps = scr;
pass++;
goto reread;
} else { /* Restore */
SvCUR_set(scrsv, SvCUR(scrsv) - 4);
*SvEND(scrsv) = 0;
}
}
if (PerlIO_close(file) != 0) { /* Failure */
panic_file:
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Error reading \"%s\": %s",
scr, Strerror(errno));
buf = ""; /* Not #! */
goto doshell_args;
}
if (buf[0] == '#') {
if (buf[1] == '!')
s = buf + 2;
} else if (buf[0] == 'e') {
if (strnEQ(buf, "extproc", 7)
&& isSPACE(buf[7]))
s = buf + 8;
} else if (buf[0] == 'E') {
if (strnEQ(buf, "EXTPROC", 7)
&& isSPACE(buf[7]))
s = buf + 8;
}
if (!s) {
buf = ""; /* Not #! */
goto doshell_args;
}
s1 = s;
nargs = 0;
argsp = args;
while (1) {
/* Do better than pdksh: allow a few args,
strip trailing whitespace. */
while (isSPACE(*s))
s++;
if (*s == 0)
break;
if (nargs == 4) {
nargs = -1;
break;
}
args[nargs++] = s;
while (*s && !isSPACE(*s))
s++;
if (*s == 0)
break;
*s++ = 0;
}
if (nargs == -1) {
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Too many args on %.*s line of \"%s\"",
s1 - buf, buf, scr);
nargs = 4;
argsp = fargs;
}
/* Can jump from far, buf/file invalid if force_shell: */
doshell_args:
{
char **a = PL_Argv;
char *exec_args[2];
if (force_shell
|| (!buf[0] && file)) { /* File without magic */
/* In fact we tried all what pdksh would
try. There is no point in calling
pdksh, we may just emulate its logic. */
char *shell = getenv("EXECSHELL");
char *shell_opt = NULL;
if (!shell) {
char *s;
shell_opt = "/c";
shell = getenv("OS2_SHELL");
if (inicmd) { /* No spaces at start! */
s = inicmd;
while (*s && !isSPACE(*s)) {
if (*s++ == '/') {
inicmd = NULL; /* Cannot use */
break;
}
}
}
if (!inicmd) {
s = PL_Argv[0];
while (*s) {
/* Dosish shells will choke on slashes
in paths, fortunately, this is
important for zeroth arg only. */
if (*s == '/')
*s = '\\';
s++;
}
}
}
/* If EXECSHELL is set, we do not set */
if (!shell)
shell = ((_emx_env & 0x200)
? "c:/os2/cmd.exe"
: "c:/command.com");
nargs = shell_opt ? 2 : 1; /* shell file args */
exec_args[0] = shell;
exec_args[1] = shell_opt;
argsp = exec_args;
if (nargs == 2 && inicmd) {
/* Use the original cmd line */
/* XXXX This is good only until we refuse
quoted arguments... */
PL_Argv[0] = inicmd;
PL_Argv[1] = Nullch;
}
} else if (!buf[0] && inicmd) { /* No file */
/* Start with the original cmdline. */
/* XXXX This is good only until we refuse
quoted arguments... */
PL_Argv[0] = inicmd;
PL_Argv[1] = Nullch;
nargs = 2; /* shell -c */
}
while (a[1]) /* Get to the end */
a++;
a++; /* Copy finil NULL too */
while (a >= PL_Argv) {
*(a + nargs) = *a; /* PL_Argv was preallocated to be
long enough. */
a--;
}
while (--nargs >= 0)
PL_Argv[nargs] = argsp[nargs];
/* Enable pathless exec if #! (as pdksh). */
pass = (buf[0] == '#' ? 2 : 3);
goto retry;
}
}
/* Not found: restore errno */
errno = err;
}
}
} else if (rc < 0 && pass == 2 && errno == ENOENT) { /* File not found */
char *no_dir = strrchr(PL_Argv[0], '/');
/* Do as pdksh port does: if not found with /, try without
path. */
if (no_dir) {
PL_Argv[0] = no_dir + 1;
pass++;
goto retry;
}
}
if (rc < 0 && ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't %s \"%s\": %s\n",
((execf != EXECF_EXEC && execf != EXECF_TRUEEXEC)
? "spawn" : "exec"),
PL_Argv[0], Strerror(errno));
if (rc < 0 && (execf != EXECF_SPAWN_NOWAIT)
&& ((trueflag & 0xFF) == P_WAIT))
rc = -1;
finish:
if (new_stderr != -1) { /* How can we use error codes? */
dup2(new_stderr, 2);
close(new_stderr);
fcntl(2, F_SETFD, fl_stderr);
} else if (nostderr)
close(2);
return rc;
}
/* Try converting 1-arg form to (usually shell-less) multi-arg form. */
int
do_spawn3(pTHX_ char *cmd, int execf, int flag)
{
register char **a;
register char *s;
char *shell, *copt, *news = NULL;
int rc, seenspace = 0, mergestderr = 0;
#ifdef TRYSHELL
if ((shell = getenv("EMXSHELL")) != NULL)
copt = "-c";
else if ((shell = getenv("SHELL")) != NULL)
copt = "-c";
else if ((shell = getenv("COMSPEC")) != NULL)
copt = "/C";
else
shell = "cmd.exe";
#else
/* Consensus on perl5-porters is that it is _very_ important to
have a shell which will not change between computers with the
same architecture, to avoid "action on a distance".
And to have simple build, this shell should be sh. */
shell = PL_sh_path;
copt = "-c";
#endif
while (*cmd && isSPACE(*cmd))
cmd++;
if (strnEQ(cmd,"/bin/sh",7) && isSPACE(cmd[7])) {
STRLEN l = strlen(PL_sh_path);
New(1302, news, strlen(cmd) - 7 + l + 1, char);
strcpy(news, PL_sh_path);
strcpy(news + l, cmd + 7);
cmd = news;
}
/* save an extra exec if possible */
/* see if there are shell metacharacters in it */
if (*cmd == '.' && isSPACE(cmd[1]))
goto doshell;
if (strnEQ(cmd,"exec",4) && isSPACE(cmd[4]))
goto doshell;
for (s = cmd; *s && isALPHA(*s); s++) ; /* catch VAR=val gizmo */
if (*s == '=')
goto doshell;
for (s = cmd; *s; s++) {
if (*s != ' ' && !isALPHA(*s) && strchr("$&*(){}[]'\";\\|?<>~`\n",*s)) {
if (*s == '\n' && s[1] == '\0') {
*s = '\0';
break;
} else if (*s == '\\' && !seenspace) {
continue; /* Allow backslashes in names */
} else if (*s == '>' && s >= cmd + 3
&& s[-1] == '2' && s[1] == '&' && s[2] == '1'
&& isSPACE(s[-2]) ) {
char *t = s + 3;
while (*t && isSPACE(*t))
t++;
if (!*t) {
s[-2] = '\0';
mergestderr = 1;
break; /* Allow 2>&1 as the last thing */
}
}
/* We do not convert this to do_spawn_ve since shell
should be smart enough to start itself gloriously. */
doshell:
if (execf == EXECF_TRUEEXEC)
rc = execl(shell,shell,copt,cmd,(char*)0);
else if (execf == EXECF_EXEC)
rc = spawnl(P_OVERLAY,shell,shell,copt,cmd,(char*)0);
else if (execf == EXECF_SPAWN_NOWAIT)
rc = spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0);
else if (execf == EXECF_SPAWN_BYFLAG)
rc = spawnl(flag,shell,shell,copt,cmd,(char*)0);
else {
/* In the ak code internal P_NOWAIT is P_WAIT ??? */
if (execf == EXECF_SYNC)
rc = spawnl(P_WAIT,shell,shell,copt,cmd,(char*)0);
else
rc = result(aTHX_ P_WAIT,
spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0));
if (rc < 0 && ckWARN(WARN_EXEC))
Perl_warner(aTHX_ packWARN(WARN_EXEC), "Can't %s \"%s\": %s",
(execf == EXECF_SPAWN ? "spawn" : "exec"),
shell, Strerror(errno));
if (rc < 0)
rc = -1;
}
if (news)
Safefree(news);
return rc;
} else if (*s == ' ' || *s == '\t') {
seenspace = 1;
}
}
/* cmd="a" may lead to "sh", "-c", "\"$@\"", "a", "a.cmd", NULL */
New(1303,PL_Argv, (s - cmd + 11) / 2, char*);
PL_Cmd = savepvn(cmd, s-cmd);
a = PL_Argv;
for (s = PL_Cmd; *s;) {
while (*s && isSPACE(*s)) s++;
if (*s)
*(a++) = s;
while (*s && !isSPACE(*s)) s++;
if (*s)
*s++ = '\0';
}
*a = Nullch;
if (PL_Argv[0])
rc = do_spawn_ve(aTHX_ NULL, flag, execf, cmd, mergestderr);
else
rc = -1;
if (news)
Safefree(news);
do_execfree();
return rc;
}
/* Array spawn. */
int
os2_do_aspawn(pTHX_ SV *really, register void **vmark, register void **vsp)
{
register SV **mark = (SV **)vmark;
register SV **sp = (SV **)vsp;
register char **a;
int rc;
int flag = P_WAIT, flag_set = 0;
STRLEN n_a;
if (sp > mark) {
New(1301,PL_Argv, sp - mark + 3, char*);
a = PL_Argv;
if (mark < sp && SvNIOKp(*(mark+1)) && !SvPOKp(*(mark+1))) {
++mark;
flag = SvIVx(*mark);
flag_set = 1;
}
while (++mark <= sp) {
if (*mark)
*a++ = SvPVx(*mark, n_a);
else
*a++ = "";
}
*a = Nullch;
if (flag_set && (a == PL_Argv + 1)) { /* One arg? */
rc = do_spawn3(aTHX_ a[-1], EXECF_SPAWN_BYFLAG, flag);
} else
rc = do_spawn_ve(aTHX_ really, flag, EXECF_SPAWN, NULL, 0);
} else
rc = -1;
do_execfree();
return rc;
}
int
os2_do_spawn(pTHX_ char *cmd)
{
return do_spawn3(aTHX_ cmd, EXECF_SPAWN, 0);
}
int
do_spawn_nowait(pTHX_ char *cmd)
{
return do_spawn3(aTHX_ cmd, EXECF_SPAWN_NOWAIT,0);
}
bool
Perl_do_exec(pTHX_ char *cmd)
{
do_spawn3(aTHX_ cmd, EXECF_EXEC, 0);
return FALSE;
}
bool
os2exec(pTHX_ char *cmd)
{
return do_spawn3(aTHX_ cmd, EXECF_TRUEEXEC, 0);
}
PerlIO *
my_syspopen(pTHX_ char *cmd, char *mode)
{
#ifndef USE_POPEN
int p[2];
register I32 this, that, newfd;
register I32 pid;
SV *sv;
int fh_fl = 0; /* Pacify the warning */
/* `this' is what we use in the parent, `that' in the child. */
this = (*mode == 'w');
that = !this;
if (PL_tainting) {
taint_env();
taint_proper("Insecure %s%s", "EXEC");
}
if (pipe(p) < 0)
return Nullfp;
/* Now we need to spawn the child. */
if (p[this] == (*mode == 'r')) { /* if fh 0/1 was initially closed. */
int new = dup(p[this]);
if (new == -1)
goto closepipes;
close(p[this]);
p[this] = new;
}
newfd = dup(*mode == 'r'); /* Preserve std* */
if (newfd == -1) {
/* This cannot happen due to fh being bad after pipe(), since
pipe() should have created fh 0 and 1 even if they were
initially closed. But we closed p[this] before. */
if (errno != EBADF) {
closepipes:
close(p[0]);
close(p[1]);
return Nullfp;
}
} else
fh_fl = fcntl(*mode == 'r', F_GETFD);
if (p[that] != (*mode == 'r')) { /* if fh 0/1 was initially closed. */
dup2(p[that], *mode == 'r');
close(p[that]);
}
/* Where is `this' and newfd now? */
fcntl(p[this], F_SETFD, FD_CLOEXEC);
if (newfd != -1)
fcntl(newfd, F_SETFD, FD_CLOEXEC);
pid = do_spawn_nowait(aTHX_ cmd);
if (newfd == -1)
close(*mode == 'r'); /* It was closed initially */
else if (newfd != (*mode == 'r')) { /* Probably this check is not needed */
dup2(newfd, *mode == 'r'); /* Return std* back. */
close(newfd);
fcntl(*mode == 'r', F_SETFD, fh_fl);
} else
fcntl(*mode == 'r', F_SETFD, fh_fl);
if (p[that] == (*mode == 'r'))
close(p[that]);
if (pid == -1) {
close(p[this]);
return Nullfp;
}
if (p[that] < p[this]) { /* Make fh as small as possible */
dup2(p[this], p[that]);
close(p[this]);
p[this] = p[that];
}
sv = *av_fetch(PL_fdpid,p[this],TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = pid;
PL_forkprocess = pid;
return PerlIO_fdopen(p[this], mode);
#else /* USE_POPEN */
PerlIO *res;
SV *sv;
# ifdef TRYSHELL
res = popen(cmd, mode);
# else
char *shell = getenv("EMXSHELL");
my_setenv("EMXSHELL", PL_sh_path);
res = popen(cmd, mode);
my_setenv("EMXSHELL", shell);
# endif
sv = *av_fetch(PL_fdpid, PerlIO_fileno(res), TRUE);
(void)SvUPGRADE(sv,SVt_IV);
SvIVX(sv) = -1; /* A cooky. */
return res;
#endif /* USE_POPEN */
}
/******************************************************************/
#ifndef HAS_FORK
int
fork(void)
{
Perl_croak_nocontext(PL_no_func, "Unsupported function fork");
errno = EINVAL;
return -1;
}
#endif
/*******************************************************************/
/* not implemented in EMX 0.9d */
char * ctermid(char *s) { return 0; }
#ifdef MYTTYNAME /* was not in emx0.9a */
void * ttyname(x) { return 0; }
#endif
/*****************************************************************************/
/* not implemented in C Set++ */
#ifndef __EMX__
int setuid(x) { errno = EINVAL; return -1; }
int setgid(x) { errno = EINVAL; return -1; }
#endif
/*****************************************************************************/
/* stat() hack for char/block device */
#if OS2_STAT_HACK
/* First attempt used DosQueryFSAttach which crashed the system when
used with 5.001. Now just look for /dev/. */
int
os2_stat(const char *name, struct stat *st)
{
static int ino = SHRT_MAX;
if (stricmp(name, "/dev/con") != 0
&& stricmp(name, "/dev/tty") != 0)
return stat(name, st);
memset(st, 0, sizeof *st);
st->st_mode = S_IFCHR|0666;
st->st_ino = (ino-- & 0x7FFF);
st->st_nlink = 1;
return 0;
}
#endif
#ifdef USE_PERL_SBRK
/* SBRK() emulation, mostly moved to malloc.c. */
void *
sys_alloc(int size) {
void *got;
APIRET rc = DosAllocMem(&got, size, PAG_COMMIT | PAG_WRITE);
if (rc == ERROR_NOT_ENOUGH_MEMORY) {
return (void *) -1;
} else if ( rc )
Perl_croak_nocontext("Got an error from DosAllocMem: %li", (long)rc);
return got;
}
#endif /* USE_PERL_SBRK */
/* tmp path */
char *tmppath = TMPPATH1;
void
settmppath()
{
char *p = getenv("TMP"), *tpath;
int len;
if (!p) p = getenv("TEMP");
if (!p) return;
len = strlen(p);
tpath = (char *)malloc(len + strlen(TMPPATH1) + 2);
if (tpath) {
strcpy(tpath, p);
tpath[len] = '/';
strcpy(tpath + len + 1, TMPPATH1);
tmppath = tpath;
}
}
#include "XSUB.h"
XS(XS_File__Copy_syscopy)
{
dXSARGS;
if (items < 2 || items > 3)
Perl_croak_nocontext("Usage: File::Copy::syscopy(src,dst,flag=0)");
{
STRLEN n_a;
char * src = (char *)SvPV(ST(0),n_a);
char * dst = (char *)SvPV(ST(1),n_a);
U32 flag;
int RETVAL, rc;
if (items < 3)
flag = 0;
else {
flag = (unsigned long)SvIV(ST(2));
}
RETVAL = !CheckOSError(DosCopy(src, dst, flag));
ST(0) = sv_newmortal();
sv_setiv(ST(0), (IV)RETVAL);
}
XSRETURN(1);
}
#define PERL_PATCHLEVEL_H_IMPLICIT /* Do not init local_patches. */
#include "patchlevel.h"
#undef PERL_PATCHLEVEL_H_IMPLICIT
char *
mod2fname(pTHX_ SV *sv)
{
static char fname[9];
int pos = 6, len, avlen;
unsigned int sum = 0;
char *s;
STRLEN n_a;
if (!SvROK(sv)) Perl_croak_nocontext("Not a reference given to mod2fname");
sv = SvRV(sv);
if (SvTYPE(sv) != SVt_PVAV)
Perl_croak_nocontext("Not array reference given to mod2fname");
avlen = av_len((AV*)sv);
if (avlen < 0)
Perl_croak_nocontext("Empty array reference given to mod2fname");
s = SvPV(*av_fetch((AV*)sv, avlen, FALSE), n_a);
strncpy(fname, s, 8);
len = strlen(s);
if (len < 6) pos = len;
while (*s) {
sum = 33 * sum + *(s++); /* Checksumming first chars to
* get the capitalization into c.s. */
}
avlen --;
while (avlen >= 0) {
s = SvPV(*av_fetch((AV*)sv, avlen, FALSE), n_a);
while (*s) {
sum = 33 * sum + *(s++); /* 7 is primitive mod 13. */
}
avlen --;
}
#ifdef USE_5005THREADS
sum++; /* Avoid conflict of DLLs in memory. */
#endif
/* We always load modules as *specific* DLLs, and with the full name.
When loading a specific DLL by its full name, one cannot get a
different DLL, even if a DLL with the same basename is loaded already.
Thus there is no need to include the version into the mangling scheme. */
#if 0
sum += PERL_VERSION * 200 + PERL_SUBVERSION * 2; /* Up to 5.6.1 */
#else
# ifndef COMPATIBLE_VERSION_SUM /* Binary compatibility with the 5.00553 binary */
# define COMPATIBLE_VERSION_SUM (5 * 200 + 53 * 2)
# endif
sum += COMPATIBLE_VERSION_SUM;
#endif
fname[pos] = 'A' + (sum % 26);
fname[pos + 1] = 'A' + (sum / 26 % 26);
fname[pos + 2] = '\0';
return (char *)fname;
}
XS(XS_DynaLoader_mod2fname)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: DynaLoader::mod2fname(sv)");
{
SV * sv = ST(0);
char * RETVAL;
RETVAL = mod2fname(aTHX_ sv);
ST(0) = sv_newmortal();
sv_setpv((SV*)ST(0), RETVAL);
}
XSRETURN(1);
}
char *
os2error(int rc)
{
static char buf[300];
ULONG len;
char *s;
int number = SvTRUE(get_sv("OS2::nsyserror", TRUE));
if (!(_emx_env & 0x200)) return ""; /* Nop if not OS/2. */
if (rc == 0)
return "";
if (number) {
sprintf(buf, "SYS%04d=%#x: ", rc, rc);
s = buf + strlen(buf);
} else
s = buf;
if (DosGetMessage(NULL, 0, s, sizeof(buf) - 1 - (s-buf),
rc, "OSO001.MSG", &len)) {
if (!number) {
sprintf(buf, "SYS%04d=%#x: ", rc, rc);
s = buf + strlen(buf);
}
sprintf(s, "[No description found in OSO001.MSG]");
} else {
s[len] = '\0';
if (len && s[len - 1] == '\n')
s[--len] = 0;
if (len && s[len - 1] == '\r')
s[--len] = 0;
if (len && s[len - 1] == '.')
s[--len] = 0;
if (len >= 10 && number && strnEQ(s, buf, 7)
&& s[7] == ':' && s[8] == ' ')
/* Some messages start with SYSdddd:, some not */
Move(s + 9, s, (len -= 9) + 1, char);
}
return buf;
}
void
ResetWinError(void)
{
WinError_2_Perl_rc;
}
void
CroakWinError(int die, char *name)
{
FillWinError;
if (die && Perl_rc)
croak("%s: %s", (name ? name : "Win* API call"), os2error(Perl_rc));
}
char *
os2_execname(pTHX)
{
char buf[300], *p, *o = PL_origargv[0], ok = 1;
if (_execname(buf, sizeof buf) != 0)
return o;
p = buf;
while (*p) {
if (*p == '\\')
*p = '/';
if (*p == '/') {
if (ok && *o != '/' && *o != '\\')
ok = 0;
} else if (ok && tolower(*o) != tolower(*p))
ok = 0;
p++;
o++;
}
if (ok) { /* PL_origargv[0] matches the real name. Use PL_origargv[0]: */
strcpy(buf, PL_origargv[0]); /* _execname() is always uppercased */
p = buf;
while (*p) {
if (*p == '\\')
*p = '/';
p++;
}
}
p = savepv(buf);
SAVEFREEPV(p);
return p;
}
char *
perllib_mangle(char *s, unsigned int l)
{
static char *newp, *oldp;
static int newl, oldl, notfound;
static char ret[STATIC_FILE_LENGTH+1];
if (!newp && !notfound) {
newp = getenv("PERLLIB_PREFIX");
if (newp) {
char *s;
oldp = newp;
while (*newp && !isSPACE(*newp) && *newp != ';') {
newp++; oldl++; /* Skip digits. */
}
while (*newp && (isSPACE(*newp) || *newp == ';')) {
newp++; /* Skip whitespace. */
}
newl = strlen(newp);
if (newl == 0 || oldl == 0) {
Perl_croak_nocontext("Malformed PERLLIB_PREFIX");
}
strcpy(ret, newp);
s = ret;
while (*s) {
if (*s == '\\') *s = '/';
s++;
}
} else {
notfound = 1;
}
}
if (!newp) {
return s;
}
if (l == 0) {
l = strlen(s);
}
if (l < oldl || strnicmp(oldp, s, oldl) != 0) {
return s;
}
if (l + newl - oldl > STATIC_FILE_LENGTH || newl > STATIC_FILE_LENGTH) {
Perl_croak_nocontext("Malformed PERLLIB_PREFIX");
}
strcpy(ret + newl, s + oldl);
return ret;
}
unsigned long
Perl_hab_GET() /* Needed if perl.h cannot be included */
{
return perl_hab_GET();
}
HMQ
Perl_Register_MQ(int serve)
{
PPIB pib;
PTIB tib;
if (Perl_hmq_refcnt > 0)
return Perl_hmq;
Perl_hmq_refcnt = 0; /* Be extra safe */
DosGetInfoBlocks(&tib, &pib);
Perl_os2_initial_mode = pib->pib_ultype;
/* Try morphing into a PM application. */
if (pib->pib_ultype != 3) /* 2 is VIO */
pib->pib_ultype = 3; /* 3 is PM */
init_PMWIN_entries();
/* 64 messages if before OS/2 3.0, ignored otherwise */
Perl_hmq = (*PMWIN_entries.CreateMsgQueue)(perl_hab_GET(), 64);
if (!Perl_hmq) {
static int cnt;
SAVEINT(cnt); /* Allow catch()ing. */
if (cnt++)
_exit(188); /* Panic can try to create a window. */
Perl_croak_nocontext("Cannot create a message queue, or morph to a PM application");
}
if (serve) {
if ( Perl_hmq_servers <= 0 /* Safe to inform us on shutdown, */
&& Perl_hmq_refcnt > 0 ) /* this was switched off before... */
(*PMWIN_entries.CancelShutdown)(Perl_hmq, 0);
Perl_hmq_servers++;
} else if (!Perl_hmq_servers) /* Do not inform us on shutdown */
(*PMWIN_entries.CancelShutdown)(Perl_hmq, 1);
Perl_hmq_refcnt++;
return Perl_hmq;
}
int
Perl_Serve_Messages(int force)
{
int cnt = 0;
QMSG msg;
if (Perl_hmq_servers > 0 && !force)
return 0;
if (Perl_hmq_refcnt <= 0)
Perl_croak_nocontext("No message queue");
while ((*PMWIN_entries.PeekMsg)(Perl_hab, &msg, NULLHANDLE, 0, 0, PM_REMOVE)) {
cnt++;
if (msg.msg == WM_QUIT)
Perl_croak_nocontext("QUITing...");
(*PMWIN_entries.DispatchMsg)(Perl_hab, &msg);
}
return cnt;
}
int
Perl_Process_Messages(int force, I32 *cntp)
{
QMSG msg;
if (Perl_hmq_servers > 0 && !force)
return 0;
if (Perl_hmq_refcnt <= 0)
Perl_croak_nocontext("No message queue");
while ((*PMWIN_entries.GetMsg)(Perl_hab, &msg, NULLHANDLE, 0, 0)) {
if (cntp)
(*cntp)++;
(*PMWIN_entries.DispatchMsg)(Perl_hab, &msg);
if (msg.msg == WM_DESTROY)
return -1;
if (msg.msg == WM_CREATE)
return +1;
}
Perl_croak_nocontext("QUITing...");
}
void
Perl_Deregister_MQ(int serve)
{
PPIB pib;
PTIB tib;
if (serve)
Perl_hmq_servers--;
if (--Perl_hmq_refcnt <= 0) {
init_PMWIN_entries(); /* To be extra safe */
(*PMWIN_entries.DestroyMsgQueue)(Perl_hmq);
Perl_hmq = 0;
/* Try morphing back from a PM application. */
DosGetInfoBlocks(&tib, &pib);
if (pib->pib_ultype == 3) /* 3 is PM */
pib->pib_ultype = Perl_os2_initial_mode;
else
Perl_warn_nocontext("Unexpected program mode %d when morphing back from PM",
pib->pib_ultype);
} else if (serve && Perl_hmq_servers <= 0) /* Last server exited */
(*PMWIN_entries.CancelShutdown)(Perl_hmq, 1);
}
#define sys_is_absolute(path) ( isALPHA((path)[0]) && (path)[1] == ':' \
&& ((path)[2] == '/' || (path)[2] == '\\'))
#define sys_is_rooted _fnisabs
#define sys_is_relative _fnisrel
#define current_drive _getdrive
#undef chdir /* Was _chdir2. */
#define sys_chdir(p) (chdir(p) == 0)
#define change_drive(d) (_chdrive(d), (current_drive() == toupper(d)))
static int DOS_harderr_state = -1;
XS(XS_OS2_Error)
{
dXSARGS;
if (items != 2)
Perl_croak_nocontext("Usage: OS2::Error(harderr, exception)");
{
int arg1 = SvIV(ST(0));
int arg2 = SvIV(ST(1));
int a = ((arg1 ? FERR_ENABLEHARDERR : FERR_DISABLEHARDERR)
| (arg2 ? FERR_ENABLEEXCEPTION : FERR_DISABLEEXCEPTION));
int RETVAL = ((arg1 ? 1 : 0) | (arg2 ? 2 : 0));
unsigned long rc;
if (CheckOSError(DosError(a)))
Perl_croak_nocontext("DosError(%d) failed", a);
ST(0) = sv_newmortal();
if (DOS_harderr_state >= 0)
sv_setiv(ST(0), DOS_harderr_state);
DOS_harderr_state = RETVAL;
}
XSRETURN(1);
}
static signed char DOS_suppression_state = -1;
XS(XS_OS2_Errors2Drive)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: OS2::Errors2Drive(drive)");
{
STRLEN n_a;
SV *sv = ST(0);
int suppress = SvOK(sv);
char *s = suppress ? SvPV(sv, n_a) : NULL;
char drive = (s ? *s : 0);
unsigned long rc;
if (suppress && !isALPHA(drive))
Perl_croak_nocontext("Non-char argument '%c' to OS2::Errors2Drive()", drive);
if (CheckOSError(DosSuppressPopUps((suppress
? SPU_ENABLESUPPRESSION
: SPU_DISABLESUPPRESSION),
drive)))
Perl_croak_nocontext("DosSuppressPopUps(%c) failed", drive);
ST(0) = sv_newmortal();
if (DOS_suppression_state > 0)
sv_setpvn(ST(0), &DOS_suppression_state, 1);
else if (DOS_suppression_state == 0)
sv_setpvn(ST(0), "", 0);
DOS_suppression_state = drive;
}
XSRETURN(1);
}
static const char * const si_fields[QSV_MAX] = {
"MAX_PATH_LENGTH",
"MAX_TEXT_SESSIONS",
"MAX_PM_SESSIONS",
"MAX_VDM_SESSIONS",
"BOOT_DRIVE",
"DYN_PRI_VARIATION",
"MAX_WAIT",
"MIN_SLICE",
"MAX_SLICE",
"PAGE_SIZE",
"VERSION_MAJOR",
"VERSION_MINOR",
"VERSION_REVISION",
"MS_COUNT",
"TIME_LOW",
"TIME_HIGH",
"TOTPHYSMEM",
"TOTRESMEM",
"TOTAVAILMEM",
"MAXPRMEM",
"MAXSHMEM",
"TIMER_INTERVAL",
"MAX_COMP_LENGTH",
"FOREGROUND_FS_SESSION",
"FOREGROUND_PROCESS"
};
XS(XS_OS2_SysInfo)
{
dXSARGS;
if (items != 0)
Perl_croak_nocontext("Usage: OS2::SysInfo()");
{
ULONG si[QSV_MAX] = {0}; /* System Information Data Buffer */
APIRET rc = NO_ERROR; /* Return code */
int i = 0, j = 0;
if (CheckOSError(DosQuerySysInfo(1L, /* Request all available system */
QSV_MAX, /* information */
(PVOID)si,
sizeof(si))))
Perl_croak_nocontext("DosQuerySysInfo() failed");
EXTEND(SP,2*QSV_MAX);
while (i < QSV_MAX) {
ST(j) = sv_newmortal();
sv_setpv(ST(j++), si_fields[i]);
ST(j) = sv_newmortal();
sv_setiv(ST(j++), si[i]);
i++;
}
}
XSRETURN(2 * QSV_MAX);
}
XS(XS_OS2_BootDrive)
{
dXSARGS;
if (items != 0)
Perl_croak_nocontext("Usage: OS2::BootDrive()");
{
ULONG si[1] = {0}; /* System Information Data Buffer */
APIRET rc = NO_ERROR; /* Return code */
char c;
if (CheckOSError(DosQuerySysInfo(QSV_BOOT_DRIVE, QSV_BOOT_DRIVE,
(PVOID)si, sizeof(si))))
Perl_croak_nocontext("DosQuerySysInfo() failed");
ST(0) = sv_newmortal();
c = 'a' - 1 + si[0];
sv_setpvn(ST(0), &c, 1);
}
XSRETURN(1);
}
XS(XS_OS2_MorphPM)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: OS2::MorphPM(serve)");
{
bool serve = SvOK(ST(0));
unsigned long pmq = perl_hmq_GET(serve);
ST(0) = sv_newmortal();
sv_setiv(ST(0), pmq);
}
XSRETURN(1);
}
XS(XS_OS2_UnMorphPM)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: OS2::UnMorphPM(serve)");
{
bool serve = SvOK(ST(0));
perl_hmq_UNSET(serve);
}
XSRETURN(0);
}
XS(XS_OS2_Serve_Messages)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: OS2::Serve_Messages(force)");
{
bool force = SvOK(ST(0));
unsigned long cnt = Perl_Serve_Messages(force);
ST(0) = sv_newmortal();
sv_setiv(ST(0), cnt);
}
XSRETURN(1);
}
XS(XS_OS2_Process_Messages)
{
dXSARGS;
if (items < 1 || items > 2)
Perl_croak_nocontext("Usage: OS2::Process_Messages(force [, cnt])");
{
bool force = SvOK(ST(0));
unsigned long cnt;
if (items == 2) {
I32 cntr;
SV *sv = ST(1);
(void)SvIV(sv); /* Force SvIVX */
if (!SvIOK(sv))
Perl_croak_nocontext("Can't upgrade count to IV");
cntr = SvIVX(sv);
cnt = Perl_Process_Messages(force, &cntr);
SvIVX(sv) = cntr;
} else {
cnt = Perl_Process_Messages(force, NULL);
}
ST(0) = sv_newmortal();
sv_setiv(ST(0), cnt);
}
XSRETURN(1);
}
XS(XS_Cwd_current_drive)
{
dXSARGS;
if (items != 0)
Perl_croak_nocontext("Usage: Cwd::current_drive()");
{
char RETVAL;
RETVAL = current_drive();
ST(0) = sv_newmortal();
sv_setpvn(ST(0), (char *)&RETVAL, 1);
}
XSRETURN(1);
}
XS(XS_Cwd_sys_chdir)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: Cwd::sys_chdir(path)");
{
STRLEN n_a;
char * path = (char *)SvPV(ST(0),n_a);
bool RETVAL;
RETVAL = sys_chdir(path);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
XS(XS_Cwd_change_drive)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: Cwd::change_drive(d)");
{
STRLEN n_a;
char d = (char)*SvPV(ST(0),n_a);
bool RETVAL;
RETVAL = change_drive(d);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
XS(XS_Cwd_sys_is_absolute)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: Cwd::sys_is_absolute(path)");
{
STRLEN n_a;
char * path = (char *)SvPV(ST(0),n_a);
bool RETVAL;
RETVAL = sys_is_absolute(path);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
XS(XS_Cwd_sys_is_rooted)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: Cwd::sys_is_rooted(path)");
{
STRLEN n_a;
char * path = (char *)SvPV(ST(0),n_a);
bool RETVAL;
RETVAL = sys_is_rooted(path);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
XS(XS_Cwd_sys_is_relative)
{
dXSARGS;
if (items != 1)
Perl_croak_nocontext("Usage: Cwd::sys_is_relative(path)");
{
STRLEN n_a;
char * path = (char *)SvPV(ST(0),n_a);
bool RETVAL;
RETVAL = sys_is_relative(path);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
XS(XS_Cwd_sys_cwd)
{
dXSARGS;
if (items != 0)
Perl_croak_nocontext("Usage: Cwd::sys_cwd()");
{
char p[MAXPATHLEN];
char * RETVAL;
RETVAL = _getcwd2(p, MAXPATHLEN);
ST(0) = sv_newmortal();
sv_setpv((SV*)ST(0), RETVAL);
#ifndef INCOMPLETE_TAINTS
SvTAINTED_on(ST(0));
#endif
}
XSRETURN(1);
}
XS(XS_Cwd_sys_abspath)
{
dXSARGS;
if (items < 1 || items > 2)
Perl_croak_nocontext("Usage: Cwd::sys_abspath(path, dir = NULL)");
{
STRLEN n_a;
char * path = (char *)SvPV(ST(0),n_a);
char * dir, *s, *t, *e;
char p[MAXPATHLEN];
char * RETVAL;
int l;
SV *sv;
if (items < 2)
dir = NULL;
else {
dir = (char *)SvPV(ST(1),n_a);
}
if (path[0] == '.' && (path[1] == '/' || path[1] == '\\')) {
path += 2;
}
if (dir == NULL) {
if (_abspath(p, path, MAXPATHLEN) == 0) {
RETVAL = p;
} else {
RETVAL = NULL;
}
} else {
/* Absolute with drive: */
if ( sys_is_absolute(path) ) {
if (_abspath(p, path, MAXPATHLEN) == 0) {
RETVAL = p;
} else {
RETVAL = NULL;
}
} else if (path[0] == '/' || path[0] == '\\') {
/* Rooted, but maybe on different drive. */
if (isALPHA(dir[0]) && dir[1] == ':' ) {
char p1[MAXPATHLEN];
/* Need to prepend the drive. */
p1[0] = dir[0];
p1[1] = dir[1];
Copy(path, p1 + 2, strlen(path) + 1, char);
RETVAL = p;
if (_abspath(p, p1, MAXPATHLEN) == 0) {
RETVAL = p;
} else {
RETVAL = NULL;
}
} else if (_abspath(p, path, MAXPATHLEN) == 0) {
RETVAL = p;
} else {
RETVAL = NULL;
}
} else {
/* Either path is relative, or starts with a drive letter. */
/* If the path starts with a drive letter, then dir is
relevant only if
a/b) it is absolute/x:relative on the same drive.
c) path is on current drive, and dir is rooted
In all the cases it is safe to drop the drive part
of the path. */
if ( !sys_is_relative(path) ) {
if ( ( ( sys_is_absolute(dir)
|| (isALPHA(dir[0]) && dir[1] == ':'
&& strnicmp(dir, path,1) == 0))
&& strnicmp(dir, path,1) == 0)
|| ( !(isALPHA(dir[0]) && dir[1] == ':')
&& toupper(path[0]) == current_drive())) {
path += 2;
} else if (_abspath(p, path, MAXPATHLEN) == 0) {
RETVAL = p; goto done;
} else {
RETVAL = NULL; goto done;
}
}
{
/* Need to prepend the absolute path of dir. */
char p1[MAXPATHLEN];
if (_abspath(p1, dir, MAXPATHLEN) == 0) {
int l = strlen(p1);
if (p1[ l - 1 ] != '/') {
p1[ l ] = '/';
l++;
}
Copy(path, p1 + l, strlen(path) + 1, char);
if (_abspath(p, p1, MAXPATHLEN) == 0) {
RETVAL = p;
} else {
RETVAL = NULL;
}
} else {
RETVAL = NULL;
}
}
done:
}
}
if (!RETVAL)
XSRETURN_EMPTY;
/* Backslashes are already converted to slashes. */
/* Remove trailing slashes */
l = strlen(RETVAL);
while (l > 0 && RETVAL[l-1] == '/')
l--;
ST(0) = sv_newmortal();
sv_setpvn( sv = (SV*)ST(0), RETVAL, l);
/* Remove duplicate slashes, skipping the first three, which
may be parts of a server-based path */
s = t = 3 + SvPV_force(sv, n_a);
e = SvEND(sv);
/* Do not worry about multibyte chars here, this would contradict the
eventual UTFization, and currently most other places break too... */
while (s < e) {
if (s[0] == t[-1] && s[0] == '/')
s++; /* Skip duplicate / */
else
*t++ = *s++;
}
if (t < e) {
*t = 0;
SvCUR_set(sv, t - SvPVX(sv));
}
}
XSRETURN(1);
}
typedef APIRET (*PELP)(PSZ path, ULONG type);
/* Kernels after 2000/09/15 understand this too: */
#ifndef LIBPATHSTRICT
# define LIBPATHSTRICT 3
#endif
APIRET
ExtLIBPATH(ULONG ord, PSZ path, IV type)
{
ULONG what;
PFN f = loadByOrdinal(ord, 1); /* Guarantied to load or die! */
if (type > 0)
what = END_LIBPATH;
else if (type == 0)
what = BEGIN_LIBPATH;
else
what = LIBPATHSTRICT;
return (*(PELP)f)(path, what);
}
#define extLibpath(to,type) \
(CheckOSError(ExtLIBPATH(ORD_DosQueryExtLibpath, (to), (type))) ? NULL : (to) )
#define extLibpath_set(p,type) \
(!CheckOSError(ExtLIBPATH(ORD_DosSetExtLibpath, (p), (type))))
XS(XS_Cwd_extLibpath)
{
dXSARGS;
if (items < 0 || items > 1)
Perl_croak_nocontext("Usage: Cwd::extLibpath(type = 0)");
{
IV type;
char to[1024];
U32 rc;
char * RETVAL;
if (items < 1)
type = 0;
else {
type = SvIV(ST(0));
}
to[0] = 1; to[1] = 0; /* Sometimes no error reported */
RETVAL = extLibpath(to, type);
if (RETVAL && RETVAL[0] == 1 && RETVAL[1] == 0)
Perl_croak_nocontext("panic Cwd::extLibpath parameter");
ST(0) = sv_newmortal();
sv_setpv((SV*)ST(0), RETVAL);
}
XSRETURN(1);
}
XS(XS_Cwd_extLibpath_set)
{
dXSARGS;
if (items < 1 || items > 2)
Perl_croak_nocontext("Usage: Cwd::extLibpath_set(s, type = 0)");
{
STRLEN n_a;
char * s = (char *)SvPV(ST(0),n_a);
IV type;
U32 rc;
bool RETVAL;
if (items < 2)
type = 0;
else {
type = SvIV(ST(1));
}
RETVAL = extLibpath_set(s, type);
ST(0) = boolSV(RETVAL);
if (SvREFCNT(ST(0))) sv_2mortal(ST(0));
}
XSRETURN(1);
}
/* Input: Address, BufLen
APIRET APIENTRY
DosQueryModFromEIP (HMODULE * hmod, ULONG * obj, ULONG BufLen, PCHAR Buf,
ULONG * Offset, ULONG Address);
*/
DeclOSFuncByORD(APIRET, _DosQueryModFromEIP,ORD_DosQueryModFromEIP,
(HMODULE * hmod, ULONG * obj, ULONG BufLen, PCHAR Buf,
ULONG * Offset, ULONG Address),
(hmod, obj, BufLen, Buf, Offset, Address))
enum module_name_how { mod_name_handle, mod_name_shortname, mod_name_full};
static SV*
module_name_at(void *pp, enum module_name_how how)
{
char buf[MAXPATHLEN];
char *p = buf;
HMODULE mod;
ULONG obj, offset, rc;
if (!_DosQueryModFromEIP(&mod, &obj, sizeof(buf), buf, &offset, (ULONG)pp))
return &PL_sv_undef;
if (how == mod_name_handle)
return newSVuv(mod);
/* Full name... */
if ( how == mod_name_full
&& CheckOSError(DosQueryModuleName(mod, sizeof(buf), buf)) )
return &PL_sv_undef;
while (*p) {
if (*p == '\\')
*p = '/';
p++;
}
return newSVpv(buf, 0);
}
static SV*
module_name_of_cv(SV *cv, enum module_name_how how)
{
if (!cv || !SvROK(cv) || SvTYPE(SvRV(cv)) != SVt_PVCV || !CvXSUB(SvRV(cv)))
croak("Not an XSUB reference");
return module_name_at(CvXSUB(SvRV(cv)), how);
}
/* Find module name to which *this* subroutine is compiled */
#define module_name(how) module_name_at(&module_name_at, how)
XS(XS_OS2_DLLname)
{
dXSARGS;
if (items > 2)
Perl_croak(aTHX_ "Usage: OS2::DLLname( [ how, [\\&xsub] ] )");
{
SV * RETVAL;
int how;
if (items < 1)
how = mod_name_full;
else {
how = (int)SvIV(ST(0));
}
if (items < 2)
RETVAL = module_name(how);
else
RETVAL = module_name_of_cv(ST(1), how);
ST(0) = RETVAL;
sv_2mortal(ST(0));
}
XSRETURN(1);
}
#define get_control87() _control87(0,0)
#define set_control87 _control87
XS(XS_OS2__control87)
{
dXSARGS;
if (items != 2)
croak("Usage: OS2::_control87(new,mask)");
{
unsigned new = (unsigned)SvIV(ST(0));
unsigned mask = (unsigned)SvIV(ST(1));
unsigned RETVAL;
RETVAL = _control87(new, mask);
ST(0) = sv_newmortal();
sv_setiv(ST(0), (IV)RETVAL);
}
XSRETURN(1);
}
XS(XS_OS2_get_control87)
{
dXSARGS;
if (items != 0)
croak("Usage: OS2::get_control87()");
{
unsigned RETVAL;
RETVAL = get_control87();
ST(0) = sv_newmortal();
sv_setiv(ST(0), (IV)RETVAL);
}
XSRETURN(1);
}
XS(XS_OS2_set_control87)
{
dXSARGS;
if (items < 0 || items > 2)
croak("Usage: OS2::set_control87(new=MCW_EM, mask=MCW_EM)");
{
unsigned new;
unsigned mask;
unsigned RETVAL;
if (items < 1)
new = MCW_EM;
else {
new = (unsigned)SvIV(ST(0));
}
if (items < 2)
mask = MCW_EM;
else {
mask = (unsigned)SvIV(ST(1));
}
RETVAL = set_control87(new, mask);
ST(0) = sv_newmortal();
sv_setiv(ST(0), (IV)RETVAL);
}
XSRETURN(1);
}
int
Xs_OS2_init(pTHX)
{
char *file = __FILE__;
{
GV *gv;
if (_emx_env & 0x200) { /* OS/2 */
newXS("File::Copy::syscopy", XS_File__Copy_syscopy, file);
newXS("Cwd::extLibpath", XS_Cwd_extLibpath, file);
newXS("Cwd::extLibpath_set", XS_Cwd_extLibpath_set, file);
}
newXS("OS2::Error", XS_OS2_Error, file);
newXS("OS2::Errors2Drive", XS_OS2_Errors2Drive, file);
newXS("OS2::SysInfo", XS_OS2_SysInfo, file);
newXS("OS2::BootDrive", XS_OS2_BootDrive, file);
newXS("OS2::MorphPM", XS_OS2_MorphPM, file);
newXS("OS2::UnMorphPM", XS_OS2_UnMorphPM, file);
newXS("OS2::Serve_Messages", XS_OS2_Serve_Messages, file);
newXS("OS2::Process_Messages", XS_OS2_Process_Messages, file);
newXS("DynaLoader::mod2fname", XS_DynaLoader_mod2fname, file);
newXS("Cwd::current_drive", XS_Cwd_current_drive, file);
newXS("Cwd::sys_chdir", XS_Cwd_sys_chdir, file);
newXS("Cwd::change_drive", XS_Cwd_change_drive, file);
newXS("Cwd::sys_is_absolute", XS_Cwd_sys_is_absolute, file);
newXS("Cwd::sys_is_rooted", XS_Cwd_sys_is_rooted, file);
newXS("Cwd::sys_is_relative", XS_Cwd_sys_is_relative, file);
newXS("Cwd::sys_cwd", XS_Cwd_sys_cwd, file);
newXS("Cwd::sys_abspath", XS_Cwd_sys_abspath, file);
newXSproto("OS2::_control87", XS_OS2__control87, file, "$$");
newXSproto("OS2::get_control87", XS_OS2_get_control87, file, "");
newXSproto("OS2::set_control87", XS_OS2_set_control87, file, ";$$");
newXSproto("OS2::DLLname", XS_OS2_DLLname, file, ";$$");
gv = gv_fetchpv("OS2::is_aout", TRUE, SVt_PV);
GvMULTI_on(gv);
#ifdef PERL_IS_AOUT
sv_setiv(GvSV(gv), 1);
#endif
gv = gv_fetchpv("OS2::can_fork", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setiv(GvSV(gv), exe_is_aout());
gv = gv_fetchpv("OS2::emx_rev", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setiv(GvSV(gv), _emx_rev);
sv_setpv(GvSV(gv), _emx_vprt);
SvIOK_on(GvSV(gv));
gv = gv_fetchpv("OS2::emx_env", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setiv(GvSV(gv), _emx_env);
gv = gv_fetchpv("OS2::os_ver", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setnv(GvSV(gv), _osmajor + 0.001 * _osminor);
gv = gv_fetchpv("OS2::nsyserror", TRUE, SVt_PV);
GvMULTI_on(gv);
sv_setiv(GvSV(gv), 1); /* DEFAULT: Show number on syserror */
}
return 0;
}
OS2_Perl_data_t OS2_Perl_data;
extern void _emx_init(void*);
static void jmp_out_of_atexit(void);
#define FORCE_EMX_INIT_CONTRACT_ARGV 1
#define FORCE_EMX_INIT_INSTALL_ATEXIT 2
static void
my_emx_init(void *layout) {
static volatile void *p = 0; /* Cannot be on stack! */
/* Can't just call emx_init(), since it moves the stack pointer */
/* It also busts a lot of registers, so be extra careful */
__asm__( "pushf\n"
"pusha\n"
"movl %%esp, %1\n"
"push %0\n"
"call __emx_init\n"
"movl %1, %%esp\n"
"popa\n"
"popf\n" : : "r" (layout), "m" (p) );
}
struct layout_table_t {
ULONG text_base;
ULONG text_end;
ULONG data_base;
ULONG data_end;
ULONG bss_base;
ULONG bss_end;
ULONG heap_base;
ULONG heap_end;
ULONG heap_brk;
ULONG heap_off;
ULONG os2_dll;
ULONG stack_base;
ULONG stack_end;
ULONG flags;
ULONG reserved[2];
char options[64];
};
static ULONG
my_os_version() {
static ULONG res; /* Cannot be on stack! */
/* Can't just call __os_version(), since it does not follow C
calling convention: it busts a lot of registers, so be extra careful */
__asm__( "pushf\n"
"pusha\n"
"call ___os_version\n"
"movl %%eax, %0\n"
"popa\n"
"popf\n" : "=m" (res) );
return res;
}
static void
force_init_emx_runtime(EXCEPTIONREGISTRATIONRECORD *preg, ULONG flags)
{
/* Calling emx_init() will bust the top of stack: it installs an
exception handler and puts argv data there. */
char *oldarg, *oldenv;
void *oldstackend, *oldstack;
PPIB pib;
PTIB tib;
static ULONG os2_dll;
ULONG rc, error = 0, out;
char buf[512];
static struct layout_table_t layout_table;
struct {
char buf[48*1024]; /* _emx_init() requires 32K, cmd.exe has 64K only */
double alignment1;
EXCEPTIONREGISTRATIONRECORD xreg;
} *newstack;
char *s;
layout_table.os2_dll = (ULONG)&os2_dll;
layout_table.flags = 0x02000002; /* flags: application, OMF */
DosGetInfoBlocks(&tib, &pib);
oldarg = pib->pib_pchcmd;
oldenv = pib->pib_pchenv;
oldstack = tib->tib_pstack;
oldstackend = tib->tib_pstacklimit;
/* Minimize the damage to the stack via reducing the size of argv. */
if (flags & FORCE_EMX_INIT_CONTRACT_ARGV) {
pib->pib_pchcmd = "\0\0"; /* Need 3 concatenated strings */
pib->pib_pchcmd = "\0"; /* Ended by an extra \0. */
}
newstack = alloca(sizeof(*newstack));
/* Emulate the stack probe */
s = ((char*)newstack) + sizeof(*newstack);
while (s > (char*)newstack) {
s[-1] = 0;
s -= 4096;
}
/* Reassigning stack is documented to work */
tib->tib_pstack = (void*)newstack;
tib->tib_pstacklimit = (void*)((char*)newstack + sizeof(*newstack));
/* Can't just call emx_init(), since it moves the stack pointer */
my_emx_init((void*)&layout_table);
/* Remove the exception handler, cannot use it - too low on the stack.
Check whether it is inside the new stack. */
buf[0] = 0;
if (tib->tib_pexchain >= tib->tib_pstacklimit
|| tib->tib_pexchain < tib->tib_pstack) {
error = 1;
sprintf(buf,
"panic: ExceptionHandler misplaced: not %#lx <= %#lx < %#lx\n",
(unsigned long)tib->tib_pstack,
(unsigned long)tib->tib_pexchain,
(unsigned long)tib->tib_pstacklimit);
goto finish;
}
if (tib->tib_pexchain != &(newstack->xreg)) {
sprintf(buf, "ExceptionHandler misplaced: %#lx != %#lx\n",
(unsigned long)tib->tib_pexchain,
(unsigned long)&(newstack->xreg));
}
rc = DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)tib->tib_pexchain);
if (rc)
sprintf(buf + strlen(buf),
"warning: DosUnsetExceptionHandler rc=%#lx=%lu\n", rc, rc);
if (preg) {
/* ExceptionRecords should be on stack, in a correct order. Sigh... */
preg->prev_structure = 0;
preg->ExceptionHandler = _emx_exception;
rc = DosSetExceptionHandler(preg);
if (rc) {
sprintf(buf + strlen(buf),
"warning: DosSetExceptionHandler rc=%#lx=%lu\n", rc, rc);
DosWrite(2, buf, strlen(buf), &out);
emx_exception_init = 1; /* Do it around spawn*() calls */
}
} else
emx_exception_init = 1; /* Do it around spawn*() calls */
finish:
/* Restore the damage */
pib->pib_pchcmd = oldarg;
pib->pib_pchcmd = oldenv;
tib->tib_pstacklimit = oldstackend;
tib->tib_pstack = oldstack;
emx_runtime_init = 1;
if (buf[0])
DosWrite(2, buf, strlen(buf), &out);
if (error)
exit(56);
}
jmp_buf at_exit_buf;
int longjmp_at_exit;
static void
jmp_out_of_atexit(void)
{
if (longjmp_at_exit)
longjmp(at_exit_buf, 1);
}
extern void _CRT_term(void);
int emx_runtime_secondary;
void
Perl_OS2_term(void **p, int exitstatus, int flags)
{
if (!emx_runtime_secondary)
return;
/* The principal executable is not running the same CRTL, so there
is nobody to shutdown *this* CRTL except us... */
if (flags & FORCE_EMX_DEINIT_EXIT) {
if (p && !emx_exception_init)
DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)p);
/* Do not run the executable's CRTL's termination routines */
exit(exitstatus); /* Run at-exit, flush buffers, etc */
}
/* Run at-exit list, and jump out at the end */
if ((flags & FORCE_EMX_DEINIT_RUN_ATEXIT) && !setjmp(at_exit_buf)) {
longjmp_at_exit = 1;
exit(exitstatus); /* The first pass through "if" */
}
/* Get here if we managed to jump out of exit(), or did not run atexit. */
longjmp_at_exit = 0; /* Maybe exit() is called again? */
#if 0 /* _atexit_n is not exported */
if (flags & FORCE_EMX_DEINIT_RUN_ATEXIT)
_atexit_n = 0; /* Remove the atexit() handlers */
#endif
/* Will segfault on program termination if we leave this dangling... */
if (p && !emx_exception_init)
DosUnsetExceptionHandler((EXCEPTIONREGISTRATIONRECORD *)p);
/* Typically there is no need to do this, done from _DLL_InitTerm() */
if (flags & FORCE_EMX_DEINIT_CRT_TERM)
_CRT_term(); /* Flush buffers, etc. */
/* Now it is a good time to call exit() in the caller's CRTL... */
}
#include <emx/startup.h>
extern ULONG __os_version(); /* See system.doc */
static int emx_wasnt_initialized;
void
check_emx_runtime(char **env, EXCEPTIONREGISTRATIONRECORD *preg)
{
ULONG v_crt, v_emx;
/* If _environ is not set, this code sits in a DLL which
uses a CRT DLL which not compatible with the executable's
CRT library. Some parts of the DLL are not initialized.
*/
if (_environ != NULL)
return; /* Properly initialized */
/* If the executable does not use EMX.DLL, EMX.DLL is not completely
initialized either. Uninitialized EMX.DLL returns 0 in the low
nibble of __os_version(). */
v_emx = my_os_version();
/* _osmajor and _osminor are normally set in _DLL_InitTerm of CRT DLL
(=>_CRT_init=>_entry2) via a call to __os_version(), then
reset when the EXE initialization code calls _text=>_init=>_entry2.
The first time they are wrongly set to 0; the second time the
EXE initialization code had already called emx_init=>initialize1
which correctly set version_major, version_minor used by
__os_version(). */
v_crt = (_osmajor | _osminor);
if ((_emx_env & 0x200) && !(v_emx & 0xFFFF)) { /* OS/2, EMX uninit. */
force_init_emx_runtime( preg,
FORCE_EMX_INIT_CONTRACT_ARGV
| FORCE_EMX_INIT_INSTALL_ATEXIT );
emx_wasnt_initialized = 1;
/* Update CRTL data basing on now-valid EMX runtime data */
if (!v_crt) { /* The only wrong data are the versions. */
v_emx = my_os_version(); /* *Now* it works */
*(unsigned char *)&_osmajor = v_emx & 0xFF; /* Cast out const */
*(unsigned char *)&_osminor = (v_emx>>8) & 0xFF;
}
}
emx_runtime_secondary = 1;
/* if (flags & FORCE_EMX_INIT_INSTALL_ATEXIT) */
atexit(jmp_out_of_atexit); /* Allow run of atexit() w/o exit() */
if (env == NULL) { /* Fetch from the process info block */
int c = 0;
PPIB pib;
PTIB tib;
char *e, **ep;
DosGetInfoBlocks(&tib, &pib);
e = pib->pib_pchenv;
while (*e) { /* Get count */
c++;
e = e + strlen(e) + 1;
}
New(1307, env, c + 1, char*);
ep = env;
e = pib->pib_pchenv;
while (c--) {
*ep++ = e;
e = e + strlen(e) + 1;
}
*ep = NULL;
}
_environ = _org_environ = env;
}
#define ENTRY_POINT 0x10000
static int
exe_is_aout(void)
{
struct layout_table_t *layout;
if (emx_wasnt_initialized)
return 0;
/* Now we know that the principal executable is an EMX application
- unless somebody did already play with delayed initialization... */
/* With EMX applications to determine whether it is AOUT one needs
to examine the start of the executable to find "layout" */
if ( *(unsigned char*)ENTRY_POINT != 0x68 /* PUSH n */
|| *(unsigned char*)(ENTRY_POINT+5) != 0xe8 /* CALL */
|| *(unsigned char*)(ENTRY_POINT+10) != 0xeb /* JMP */
|| *(unsigned char*)(ENTRY_POINT+12) != 0xe8) /* CALL */
return 0; /* ! EMX executable */
/* Fix alignment */
Copy((char*)(ENTRY_POINT+1), &layout, 1, struct layout_table_t*);
return !(layout->flags & 2);
}
void
Perl_OS2_init(char **env)
{
Perl_OS2_init3(env, 0, 0);
}
void
Perl_OS2_init3(char **env, void **preg, int flags)
{
char *shell;
_uflags (_UF_SBRK_MODEL, _UF_SBRK_ARBITRARY);
MALLOC_INIT;
check_emx_runtime(env, (EXCEPTIONREGISTRATIONRECORD *)preg);
settmppath();
OS2_Perl_data.xs_init = &Xs_OS2_init;
if ( (shell = getenv("PERL_SH_DRIVE")) ) {
New(1304, PL_sh_path, strlen(SH_PATH) + 1, char);
strcpy(PL_sh_path, SH_PATH);
PL_sh_path[0] = shell[0];
} else if ( (shell = getenv("PERL_SH_DIR")) ) {
int l = strlen(shell), i;
if (shell[l-1] == '/' || shell[l-1] == '\\') {
l--;
}
New(1304, PL_sh_path, l + 8, char);
strncpy(PL_sh_path, shell, l);
strcpy(PL_sh_path + l, "/sh.exe");
for (i = 0; i < l; i++) {
if (PL_sh_path[i] == '\\') PL_sh_path[i] = '/';
}
}
MUTEX_INIT(&start_thread_mutex);
os2_mytype = my_type(); /* Do it before morphing. Needed? */
/* Some DLLs reset FP flags on load. We may have been linked with them */
_control87(MCW_EM, MCW_EM);
}
#undef tmpnam
#undef tmpfile
char *
my_tmpnam (char *str)
{
char *p = getenv("TMP"), *tpath;
if (!p) p = getenv("TEMP");
tpath = tempnam(p, "pltmp");
if (str && tpath) {
strcpy(str, tpath);
return str;
}
return tpath;
}
FILE *
my_tmpfile ()
{
struct stat s;
stat(".", &s);
if (s.st_mode & S_IWOTH) {
return tmpfile();
}
return fopen(my_tmpnam(NULL), "w+b"); /* Race condition, but
grants TMP. */
}
#undef rmdir
int
my_rmdir (__const__ char *s)
{
char buf[MAXPATHLEN];
STRLEN l = strlen(s);
if (s[l-1] == '/' || s[l-1] == '\\') { /* EMX rmdir fails... */
strcpy(buf,s);
buf[l - 1] = 0;
s = buf;
}
return rmdir(s);
}
#undef mkdir
int
my_mkdir (__const__ char *s, long perm)
{
char buf[MAXPATHLEN];
STRLEN l = strlen(s);
if (s[l-1] == '/' || s[l-1] == '\\') { /* EMX mkdir fails... */
strcpy(buf,s);
buf[l - 1] = 0;
s = buf;
}
return mkdir(s, perm);
}
#undef flock
/* This code was contributed by Rocco Caputo. */
int
my_flock(int handle, int o)
{
FILELOCK rNull, rFull;
ULONG timeout, handle_type, flag_word;
APIRET rc;
int blocking, shared;
static int use_my = -1;
if (use_my == -1) {
char *s = getenv("USE_PERL_FLOCK");
if (s)
use_my = atoi(s);
else
use_my = 1;
}
if (!(_emx_env & 0x200) || !use_my)
return flock(handle, o); /* Delegate to EMX. */
/* is this a file? */
if ((DosQueryHType(handle, &handle_type, &flag_word) != 0) ||
(handle_type & 0xFF))
{
errno = EBADF;
return -1;
}
/* set lock/unlock ranges */
rNull.lOffset = rNull.lRange = rFull.lOffset = 0;
rFull.lRange = 0x7FFFFFFF;
/* set timeout for blocking */
timeout = ((blocking = !(o & LOCK_NB))) ? 100 : 1;
/* shared or exclusive? */
shared = (o & LOCK_SH) ? 1 : 0;
/* do not block the unlock */
if (o & (LOCK_UN | LOCK_SH | LOCK_EX)) {
rc = DosSetFileLocks(handle, &rFull, &rNull, timeout, shared);
switch (rc) {
case 0:
errno = 0;
return 0;
case ERROR_INVALID_HANDLE:
errno = EBADF;
return -1;
case ERROR_SHARING_BUFFER_EXCEEDED:
errno = ENOLCK;
return -1;
case ERROR_LOCK_VIOLATION:
break; /* not an error */
case ERROR_INVALID_PARAMETER:
case ERROR_ATOMIC_LOCK_NOT_SUPPORTED:
case ERROR_READ_LOCKS_NOT_SUPPORTED:
errno = EINVAL;
return -1;
case ERROR_INTERRUPT:
errno = EINTR;
return -1;
default:
errno = EINVAL;
return -1;
}
}
/* lock may block */
if (o & (LOCK_SH | LOCK_EX)) {
/* for blocking operations */
for (;;) {
rc =
DosSetFileLocks(
handle,
&rNull,
&rFull,
timeout,
shared
);
switch (rc) {
case 0:
errno = 0;
return 0;
case ERROR_INVALID_HANDLE:
errno = EBADF;
return -1;
case ERROR_SHARING_BUFFER_EXCEEDED:
errno = ENOLCK;
return -1;
case ERROR_LOCK_VIOLATION:
if (!blocking) {
errno = EWOULDBLOCK;
return -1;
}
break;
case ERROR_INVALID_PARAMETER:
case ERROR_ATOMIC_LOCK_NOT_SUPPORTED:
case ERROR_READ_LOCKS_NOT_SUPPORTED:
errno = EINVAL;
return -1;
case ERROR_INTERRUPT:
errno = EINTR;
return -1;
default:
errno = EINVAL;
return -1;
}
/* give away timeslice */
DosSleep(1);
}
}
errno = 0;
return 0;
}
static int pwent_cnt;
static int _my_pwent = -1;
static int
use_my_pwent(void)
{
if (_my_pwent == -1) {
char *s = getenv("USE_PERL_PWENT");
if (s)
_my_pwent = atoi(s);
else
_my_pwent = 1;
}
return _my_pwent;
}
#undef setpwent
#undef getpwent
#undef endpwent
void
my_setpwent(void)
{
if (!use_my_pwent()) {
setpwent(); /* Delegate to EMX. */
return;
}
pwent_cnt = 0;
}
void
my_endpwent(void)
{
if (!use_my_pwent()) {
endpwent(); /* Delegate to EMX. */
return;
}
}
struct passwd *
my_getpwent (void)
{
if (!use_my_pwent())
return getpwent(); /* Delegate to EMX. */
if (pwent_cnt++)
return 0; /* Return one entry only */
return getpwuid(0);
}
static int grent_cnt;
void
setgrent(void)
{
grent_cnt = 0;
}
void
endgrent(void)
{
}
struct group *
getgrent (void)
{
if (grent_cnt++)
return 0; /* Return one entry only */
return getgrgid(0);
}
#undef getpwuid
#undef getpwnam
/* Too long to be a crypt() of anything, so it is not-a-valid pw_passwd. */
static const char pw_p[] = "Jf0Wb/BzMFvk7K7lrzK";
static struct passwd *
passw_wrap(struct passwd *p)
{
static struct passwd pw;
char *s;
if (!p || (p->pw_passwd && *p->pw_passwd)) /* Not a dangerous password */
return p;
pw = *p;
s = getenv("PW_PASSWD");
if (!s)
s = (char*)pw_p; /* Make match impossible */
pw.pw_passwd = s;
return &pw;
}
struct passwd *
my_getpwuid (uid_t id)
{
return passw_wrap(getpwuid(id));
}
struct passwd *
my_getpwnam (__const__ char *n)
{
return passw_wrap(getpwnam(n));
}
char *
gcvt_os2 (double value, int digits, char *buffer)
{
return gcvt (value, digits, buffer);
}
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