#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 #include "dlfcn.h" #include /* * Various Unix compatibility functions for OS/2 */ #include #include #include #include #include #include #include #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, 872}, /* WinIsWindow */ {&pmwin_handle, NULL, 899}, /* WinWindowFromId */ {&pmwin_handle, NULL, 900}, /* WinWindowFromPoint */ {&pmwin_handle, NULL, 919}, /* WinPostMsg */ }; 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 (!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; if (PL_Argv[0][0] != '/' && PL_Argv[0][0] != '\\' && !(PL_Argv[0][0] && PL_Argv[0][1] == ':' && (PL_Argv[0][2] == '/' || PL_Argv[0][2] != '\\')) ) /* will spawnvp use PATH? */ TAINT_ENV(); /* testing IFS here is overkill, probably */ /* We should check PERL_SH* and PERLLIB_* as well? */ if (!really || !*(tmps = SvPV(really, n_a))) tmps = PL_Argv[0]; 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_ 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_ 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_ 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_ 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_ 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("$&*(){}[]'\";\\|?<>~`\n",*s)) { if (*s == '\n' && s[1] == '\0') { *s = '\0'; break; } else if (*s == '\\' && !seenspace) { continue; /* Allow backslashes in names */ } else if (*s == '>' && s >= cmd + 3 && s[-1] == '2' && s[1] == '&' && s[2] == '1' && isSPACE(s[-2]) ) { char *t = s + 3; while (*t && isSPACE(*t)) t++; if (!*t) { s[-2] = '\0'; mergestderr = 1; break; /* Allow 2>&1 as the last thing */ } } /* We do not convert this to do_spawn_ve since shell should be smart enough to start itself gloriously. */ doshell: if (execf == EXECF_TRUEEXEC) rc = execl(shell,shell,copt,cmd,(char*)0); else if (execf == EXECF_EXEC) rc = spawnl(P_OVERLAY,shell,shell,copt,cmd,(char*)0); else if (execf == EXECF_SPAWN_NOWAIT) rc = spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0); else if (execf == EXECF_SPAWN_BYFLAG) rc = spawnl(flag,shell,shell,copt,cmd,(char*)0); else { /* In the ak code internal P_NOWAIT is P_WAIT ??? */ if (execf == EXECF_SYNC) rc = spawnl(P_WAIT,shell,shell,copt,cmd,(char*)0); else rc = result(aTHX_ P_WAIT, spawnl(P_NOWAIT,shell,shell,copt,cmd,(char*)0)); if (rc < 0 && ckWARN(WARN_EXEC)) Perl_warner(aTHX_ WARN_EXEC, "Can't %s \"%s\": %s", (execf == EXECF_SPAWN ? "spawn" : "exec"), shell, Strerror(errno)); if (rc < 0) rc = -1; } if (news) Safefree(news); return rc; } else if (*s == ' ' || *s == '\t') { seenspace = 1; } } /* cmd="a" may lead to "sh", "-c", "\"$@\"", "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; } 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_os2_initial_mode++) return Perl_hmq; 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); } 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); } #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, "$$"); newXSproto("OS2::get_control87", XS_OS2_get_control87, file, ""); newXSproto("OS2::set_control87", XS_OS2_set_control87, file, ";$$"); 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 emx_init(), since it moves the stack pointer */ /* It also 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 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) { /* 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; } 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)); }