[perl5.git] / cygwin / cygwin.c

/*
 * Cygwin extras
 */

#include "EXTERN.h"
#include "perl.h"
#undef USE_DYNAMIC_LOADING
#include "XSUB.h"

#include <unistd.h>
#include <process.h>
#include <sys/cygwin.h>
#include <cygwin/version.h>
#include <mntent.h>
#include <alloca.h>
#include <dlfcn.h>
#if (CYGWIN_VERSION_API_MINOR >= 181)
#include <wchar.h>
#endif

/*
 * pp_system() implemented via spawn()
 * - more efficient and useful when embedding Perl in non-Cygwin apps
 * - code mostly borrowed from djgpp.c
 */
static int
do_spawnvp (const char *path, const char * const *argv)
{
    dTHX;
    Sigsave_t ihand,qhand;
    int childpid, result, status;

    rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
    rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
    childpid = spawnvp(_P_NOWAIT,path,argv);
    if (childpid < 0) {
	status = -1;
	if(ckWARN(WARN_EXEC))
	    Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't spawn \"%s\": %s",
		    path,Strerror (errno));
    } else {
	do {
	    result = wait4pid(childpid, &status, 0);
	} while (result == -1 && errno == EINTR);
	if(result < 0)
	    status = -1;
    }
    (void)rsignal_restore(SIGINT, &ihand);
    (void)rsignal_restore(SIGQUIT, &qhand);
    return status;
}

int
do_aspawn (SV *really, void **mark, void **sp)
{
    dTHX;
    int  rc;
    char const **a;
    char *tmps,**argv;
    STRLEN n_a;

    if (sp<=mark)
        return -1;
    argv=(char**) alloca ((sp-mark+3)*sizeof (char*));
    a=(char const **)argv;

    while (++mark <= sp)
        if (*mark)
            *a++ = SvPVx((SV *)*mark, n_a);
        else
            *a++ = "";
    *a = (char*)NULL;

    if (argv[0][0] != '/' && argv[0][0] != '\\'
        && !(argv[0][0] && argv[0][1] == ':'
        && (argv[0][2] == '/' || argv[0][2] != '\\'))
     ) /* will swawnvp use PATH? */
         TAINT_ENV();	/* testing IFS here is overkill, probably */

    if (really && *(tmps = SvPV(really, n_a)))
        rc=do_spawnvp (tmps,(const char * const *)argv);
    else
        rc=do_spawnvp (argv[0],(const char *const *)argv);

    return rc;
}

int
do_spawn (char *cmd)
{
    dTHX;
    char const **a;
    char *s;
    char const *metachars = "$&*(){}[]'\";\\?>|<~`\n";
    const char *command[4];

    while (*cmd && isSPACE(*cmd))
	cmd++;

    if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7]))
        cmd+=5;

    /* save an extra exec if possible */
    /* see if there are shell metacharacters in it */
    if (strstr (cmd,"..."))
	goto doshell;
    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 (strchr (metachars,*s))
	{
	    if (*s=='\n' && s[1]=='\0')
	    {
		*s='\0';
		break;
	    }
	doshell:
	    command[0] = "sh";
	    command[1] = "-c";
	    command[2] = cmd;
	    command[3] = NULL;

	    return do_spawnvp("sh",command);
	}

    Newx (PL_Argv, (s-cmd)/2+2, const 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 = (char*)NULL;
    if (!PL_Argv[0])
        return -1;

    return do_spawnvp(PL_Argv[0],(const char * const *)PL_Argv);
}

#if (CYGWIN_VERSION_API_MINOR >= 181)
char*
wide_to_utf8(const wchar_t *wbuf)
{
    char *buf;
    int wlen = 0;
    char *oldlocale = setlocale(LC_CTYPE, NULL);
    setlocale(LC_CTYPE, "utf-8");

    /* uvuni_to_utf8(buf, chr) or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
    wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
    buf = (char *) safemalloc(wlen+1);
    wcsrtombs(buf, (const wchar_t **)&wbuf, wlen, NULL);

    if (oldlocale) setlocale(LC_CTYPE, oldlocale);
    else setlocale(LC_CTYPE, "C");
    return buf;
}

wchar_t*
utf8_to_wide(const char *buf)
{
    wchar_t *wbuf;
    mbstate_t mbs;
    char *oldlocale = setlocale(LC_CTYPE, NULL);
    int wlen = sizeof(wchar_t)*strlen(buf);

    setlocale(LC_CTYPE, "utf-8");
    wbuf = (wchar_t *) safemalloc(wlen);
    /* utf8_to_uvuni_buf(pathname, pathname + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
    wlen = mbsrtowcs(wbuf, (const char**)&buf, wlen, &mbs);

    if (oldlocale) setlocale(LC_CTYPE, oldlocale);
    else setlocale(LC_CTYPE, "C");
    return wbuf;
}
#endif /* cygwin 1.7 */

/* see also Cwd.pm */
XS(Cygwin_cwd)
{
    dXSARGS;
    char *cwd;

    /* See http://rt.perl.org/rt3/Ticket/Display.html?id=38628 
       There is Cwd->cwd() usage in the wild, and previous versions didn't die.
     */
    if(items > 1)
	Perl_croak(aTHX_ "Usage: Cwd::cwd()");
    if((cwd = getcwd(NULL, -1))) {
	ST(0) = sv_2mortal(newSVpv(cwd, 0));
	free(cwd);
#ifndef INCOMPLETE_TAINTS
	SvTAINTED_on(ST(0));
#endif
	XSRETURN(1);
    }
    XSRETURN_UNDEF;
}

XS(XS_Cygwin_pid_to_winpid)
{
    dXSARGS;
    dXSTARG;
    pid_t pid, RETVAL;

    if (items != 1)
        Perl_croak(aTHX_ "Usage: Cygwin::pid_to_winpid(pid)");

    pid = (pid_t)SvIV(ST(0));

    if ((RETVAL = cygwin_internal(CW_CYGWIN_PID_TO_WINPID, pid)) > 0) {
	XSprePUSH; PUSHi((IV)RETVAL);
        XSRETURN(1);
    }
    XSRETURN_UNDEF;
}

XS(XS_Cygwin_winpid_to_pid)
{
    dXSARGS;
    dXSTARG;
    pid_t pid, RETVAL;

    if (items != 1)
        Perl_croak(aTHX_ "Usage: Cygwin::winpid_to_pid(pid)");

    pid = (pid_t)SvIV(ST(0));

#if (CYGWIN_VERSION_API_MINOR >= 181)
    RETVAL = cygwin_winpid_to_pid(pid);
#else
    RETVAL = cygwin32_winpid_to_pid(pid);
#endif
    if (RETVAL > 0) {
        XSprePUSH; PUSHi((IV)RETVAL);
        XSRETURN(1);
    }
    XSRETURN_UNDEF;
}

XS(XS_Cygwin_win_to_posix_path)

{
    dXSARGS;
    int absolute_flag = 0;
    STRLEN len;
    int err = 0;
    char *src_path;
    char *posix_path;
    int isutf8 = 0;

    if (items < 1 || items > 2)
        Perl_croak(aTHX_ "Usage: Cygwin::win_to_posix_path(pathname, [absolute])");

    src_path = SvPV(ST(0), len);
    if (items == 2)
	absolute_flag = SvTRUE(ST(1));

    if (!len)
	Perl_croak(aTHX_ "can't convert empty path");
    isutf8 = SvUTF8(ST(0));

#if (CYGWIN_VERSION_API_MINOR >= 181)
    /* Check utf8 flag and use wide api then.
       Size calculation: On overflow let cygwin_conv_path calculate the final size.
     */
    if (isutf8) {
	int what = absolute_flag ? CCP_WIN_W_TO_POSIX : CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	wchar_t *wpath = (wchar_t *) safemalloc(sizeof(wchar_t)*len);
	wchar_t *wbuf = (wchar_t *) safemalloc(wlen);
	if (!IN_BYTES) {
	    mbstate_t mbs;
            char *oldlocale = setlocale(LC_CTYPE, NULL);
            setlocale(LC_CTYPE, "utf-8");
	    /* utf8_to_uvuni_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
	    wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	    if (wlen > 0)
		err = cygwin_conv_path(what, wpath, wbuf, wlen);
            if (oldlocale) setlocale(LC_CTYPE, oldlocale);
            else setlocale(LC_CTYPE, "C");
	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	    err = cygwin_conv_path(what, src_path, wbuf, wlen);
	}
	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	    int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	    wbuf = (wchar_t *) realloc(&wbuf, newlen);
	    err = cygwin_conv_path(what, wpath, wbuf, newlen);
	    wlen = newlen;
	}
	/* utf16_to_utf8(*p, *d, bytlen, *newlen) */
	posix_path = (char *) safemalloc(wlen*3);
	Perl_utf16_to_utf8(aTHX_ (U8*)&wpath, (U8*)posix_path, (I32)wlen*2, (I32*)&len);
	/*
	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	posix_path = (char *) safemalloc(wlen+1);
	wcsrtombs(posix_path, (const wchar_t **)&wbuf, wlen, NULL);
	*/
    } else {
	int what = absolute_flag ? CCP_WIN_A_TO_POSIX : CCP_WIN_A_TO_POSIX | CCP_RELATIVE;
	posix_path = (char *) safemalloc (len + 260 + 1001);
	err = cygwin_conv_path(what, src_path, posix_path, len + 260 + 1001);
	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	    int newlen = cygwin_conv_path(what, src_path, posix_path, 0);
	    posix_path = (char *) realloc(&posix_path, newlen);
	    err = cygwin_conv_path(what, src_path, posix_path, newlen);
	}
    }
#else
    posix_path = (char *) safemalloc (len + 260 + 1001);
    if (absolute_flag)
	err = cygwin_conv_to_full_posix_path(src_path, posix_path);
    else
	err = cygwin_conv_to_posix_path(src_path, posix_path);
#endif
    if (!err) {
	EXTEND(SP, 1);
	ST(0) = sv_2mortal(newSVpv(posix_path, 0));
	if (isutf8) { /* src was utf-8, so result should also */
	    /* TODO: convert ANSI (local windows encoding) to utf-8 on cygwin-1.5 */
	    SvUTF8_on(ST(0));
	}
	safefree(posix_path);
        XSRETURN(1);
    } else {
	safefree(posix_path);
	XSRETURN_UNDEF;
    }
}

XS(XS_Cygwin_posix_to_win_path)
{
    dXSARGS;
    int absolute_flag = 0;
    STRLEN len;
    int err = 0;
    char *src_path, *win_path;
    int isutf8 = 0;

    if (items < 1 || items > 2)
        Perl_croak(aTHX_ "Usage: Cygwin::posix_to_win_path(pathname, [absolute])");

    src_path = SvPVx(ST(0), len);
    if (items == 2)
	absolute_flag = SvTRUE(ST(1));

    if (!len)
	Perl_croak(aTHX_ "can't convert empty path");
    isutf8 = SvUTF8(ST(0));
#if (CYGWIN_VERSION_API_MINOR >= 181)
    /* Check utf8 flag and use wide api then.
       Size calculation: On overflow let cygwin_conv_path calculate the final size.
     */
    if (isutf8) {
	int what = absolute_flag ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_W | CCP_RELATIVE;
	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	wchar_t *wpath = (wchar_t *) safemalloc(sizeof(wchar_t)*len);
	wchar_t *wbuf = (wchar_t *) safemalloc(wlen);
	char *oldlocale = setlocale(LC_CTYPE, NULL);
	setlocale(LC_CTYPE, "utf-8");
	if (!IN_BYTES) {
	    mbstate_t mbs;
	    /* utf8_to_uvuni_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
	    wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	    if (wlen > 0)
		err = cygwin_conv_path(what, wpath, wbuf, wlen);
	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	    err = cygwin_conv_path(what, src_path, wbuf, wlen);
	}
	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	    int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	    wbuf = (wchar_t *) realloc(&wbuf, newlen);
	    err = cygwin_conv_path(what, wpath, wbuf, newlen);
	    wlen = newlen;
	}
	/* also see utf8.c: Perl_utf16_to_utf8() or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	win_path = (char *) safemalloc(wlen+1);
	wcsrtombs(win_path, (const wchar_t **)&wbuf, wlen, NULL);
	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	else setlocale(LC_CTYPE, "C");
    } else {
	int what = absolute_flag ? CCP_POSIX_TO_WIN_A : CCP_POSIX_TO_WIN_A | CCP_RELATIVE;
	win_path = (char *) safemalloc(len + 260 + 1001);
	err = cygwin_conv_path(what, src_path, win_path, len + 260 + 1001);
	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	    int newlen = cygwin_conv_path(what, src_path, win_path, 0);
	    win_path = (char *) realloc(&win_path, newlen);
	    err = cygwin_conv_path(what, src_path, win_path, newlen);
	}
    }
#else
    if (isutf8)
	Perl_warn(aTHX_ "can't convert utf8 path");
    win_path = (char *) safemalloc(len + 260 + 1001);
    if (absolute_flag)
	err = cygwin_conv_to_full_win32_path(src_path, win_path);
    else
	err = cygwin_conv_to_win32_path(src_path, win_path);
#endif
    if (!err) {
	EXTEND(SP, 1);
	ST(0) = sv_2mortal(newSVpv(win_path, 0));
	if (isutf8) {
	    SvUTF8_on(ST(0));
	}
	safefree(win_path);
	XSRETURN(1);
    } else {
	safefree(win_path);
	XSRETURN_UNDEF;
    }
}

XS(XS_Cygwin_mount_table)
{
    dXSARGS;
    struct mntent *mnt;

    if (items != 0)
        Perl_croak(aTHX_ "Usage: Cygwin::mount_table");
    /* => array of [mnt_dir mnt_fsname mnt_type mnt_opts] */

    setmntent (0, 0);
    while ((mnt = getmntent (0))) {
	AV* av = newAV();
	av_push(av, newSVpvn(mnt->mnt_dir, strlen(mnt->mnt_dir)));
	av_push(av, newSVpvn(mnt->mnt_fsname, strlen(mnt->mnt_fsname)));
	av_push(av, newSVpvn(mnt->mnt_type, strlen(mnt->mnt_type)));
	av_push(av, newSVpvn(mnt->mnt_opts, strlen(mnt->mnt_opts)));
	XPUSHs(sv_2mortal(newRV_noinc((SV*)av)));
    }
    endmntent (0);
    PUTBACK;
}

XS(XS_Cygwin_mount_flags)
{
    dXSARGS;
    char *pathname;
    char flags[PATH_MAX];
    flags[0] = '\0';

    if (items != 1)
        Perl_croak(aTHX_ "Usage: Cygwin::mount_flags( mnt_dir | '/cygdrive' )");

    pathname = SvPV_nolen(ST(0));

    if (!strcmp(pathname, "/cygdrive")) {
	char user[PATH_MAX];
	char system[PATH_MAX];
	char user_flags[PATH_MAX];
	char system_flags[PATH_MAX];

	cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
			 user_flags, system_flags);

        if (strlen(user) > 0) {
            sprintf(flags, "%s,cygdrive,%s", user_flags, user);
        } else {
            sprintf(flags, "%s,cygdrive,%s", system_flags, system);
        }

	ST(0) = sv_2mortal(newSVpv(flags, 0));
	XSRETURN(1);

    } else {
	struct mntent *mnt;
	int found = 0;
	setmntent (0, 0);
	while ((mnt = getmntent (0))) {
	    if (!strcmp(pathname, mnt->mnt_dir)) {
		strcpy(flags, mnt->mnt_type);
		if (strlen(mnt->mnt_opts) > 0) {
		    strcat(flags, ",");
		    strcat(flags, mnt->mnt_opts);
		}
		found++;
		break;
	    }
	}
	endmntent (0);

	/* Check if arg is the current volume moint point if not default,
	 * and then use CW_GET_CYGDRIVE_INFO also.
	 */
	if (!found) {
	    char user[PATH_MAX];
	    char system[PATH_MAX];
	    char user_flags[PATH_MAX];
	    char system_flags[PATH_MAX];

	    cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
			     user_flags, system_flags);

	    if (strlen(user) > 0) {
		if (strcmp(user,pathname)) {
		    sprintf(flags, "%s,cygdrive,%s", user_flags, user);
		    found++;
		}
	    } else {
		if (strcmp(user,pathname)) {
		    sprintf(flags, "%s,cygdrive,%s", system_flags, system);
		    found++;
		}
	    }
	}
	if (found) {
	    ST(0) = sv_2mortal(newSVpv(flags, 0));
	    XSRETURN(1);
	} else {
	    XSRETURN_UNDEF;
	}
    }
}

XS(XS_Cygwin_is_binmount)
{
    dXSARGS;
    char *pathname;

    if (items != 1)
        Perl_croak(aTHX_ "Usage: Cygwin::is_binmount(pathname)");

    pathname = SvPV_nolen(ST(0));

    ST(0) = boolSV(cygwin_internal(CW_GET_BINMODE, pathname));
    XSRETURN(1);
}

XS(XS_Cygwin_sync_winenv){ cygwin_internal(CW_SYNC_WINENV); }

void
init_os_extras(void)
{
    dTHX;
    char const *file = __FILE__;
    void *handle;

    newXS("Cwd::cwd", Cygwin_cwd, file);
    newXSproto("Cygwin::winpid_to_pid", XS_Cygwin_winpid_to_pid, file, "$");
    newXSproto("Cygwin::pid_to_winpid", XS_Cygwin_pid_to_winpid, file, "$");
    newXSproto("Cygwin::win_to_posix_path", XS_Cygwin_win_to_posix_path, file, "$;$");
    newXSproto("Cygwin::posix_to_win_path", XS_Cygwin_posix_to_win_path, file, "$;$");
    newXSproto("Cygwin::mount_table", XS_Cygwin_mount_table, file, "");
    newXSproto("Cygwin::mount_flags", XS_Cygwin_mount_flags, file, "$");
    newXSproto("Cygwin::is_binmount", XS_Cygwin_is_binmount, file, "$");
    newXS("Cygwin::sync_winenv", XS_Cygwin_sync_winenv, file);

    /* Initialize Win32CORE if it has been statically linked. */
    handle = dlopen(NULL, RTLD_LAZY);
    if (handle) {
        void (*pfn_init)(pTHX);
        pfn_init = (void (*)(pTHX))dlsym(handle, "init_Win32CORE");
        if (pfn_init)
            pfn_init(aTHX);
        dlclose(handle);
    }
}
Commit	Line	Data
5db16f6a EF	1	/*
	2	* Cygwin extras
	3	*/
	4
	5	#include "EXTERN.h"
	6	#include "perl.h"
	7	#undef USE_DYNAMIC_LOADING
	8	#include "XSUB.h"
	9
6b49d266	10	#include <unistd.h>
b4bcd662	11	#include <process.h>
49fd6edc	12	#include <sys/cygwin.h>
803e389c	13	#include <cygwin/version.h>
a25ce5f3	14	#include <mntent.h>
6d7e4387	15	#include <alloca.h>
9fb265f7	16	#include <dlfcn.h>
803e389c RU	17	#if (CYGWIN_VERSION_API_MINOR >= 181)
	18	#include <wchar.h>
	19	#endif
5db16f6a	20
b4bcd662 GS	21	/*
	22	* pp_system() implemented via spawn()
	23	* - more efficient and useful when embedding Perl in non-Cygwin apps
	24	* - code mostly borrowed from djgpp.c
	25	*/
	26	static int
	27	do_spawnvp (const char path, const char const *argv)
	28	{
acfe0abc	29	dTHX;
b4bcd662 GS	30	Sigsave_t ihand,qhand;
	31	int childpid, result, status;
	32
ec1aec95 YST	33	rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
ec1aec95 YST	34	rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
b4bcd662 GS	35	childpid = spawnvp(_P_NOWAIT,path,argv);
	36	if (childpid < 0) {
	37	status = -1;
411caa50	38	if(ckWARN(WARN_EXEC))
f98bc0c6	39	Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't spawn \"%s\": %s",
b4bcd662	40	path,Strerror (errno));
b4bcd662 GS	41	} else {
	42	do {
	43	result = wait4pid(childpid, &status, 0);
	44	} while (result == -1 && errno == EINTR);
	45	if(result < 0)
	46	status = -1;
	47	}
	48	(void)rsignal_restore(SIGINT, &ihand);
	49	(void)rsignal_restore(SIGQUIT, &qhand);
	50	return status;
	51	}
	52
	53	int
	54	do_aspawn (SV really, void mark, void *sp)
	55	{
acfe0abc	56	dTHX;
b4bcd662	57	int rc;
a4ec4e68 JH	58	char const **a;
	59	char tmps,*argv;
	60	STRLEN n_a;
b4bcd662 GS	61
	62	if (sp<=mark)
	63	return -1;
a4ec4e68 JH	64	argv=(char*) alloca ((sp-mark+3)sizeof (char*));
a4ec4e68 JH	65	a=(char const **)argv;
b4bcd662 GS	66
	67	while (++mark <= sp)
	68	if (*mark)
667e2948	69	a++ = SvPVx((SV )*mark, n_a);
b4bcd662 GS	70	else
b4bcd662 GS	71	*a++ = "";
dfe169ee	72	a = (char)NULL;
b4bcd662 GS	73
	74	if (argv[0][0] != '/' && argv[0][0] != '\\'
	75	&& !(argv[0][0] && argv[0][1] == ':'
	76	&& (argv[0][2] == '/' \|\| argv[0][2] != '\\'))
	77	) /* will swawnvp use PATH? */
	78	TAINT_ENV(); /* testing IFS here is overkill, probably */
	79
	80	if (really && *(tmps = SvPV(really, n_a)))
	81	rc=do_spawnvp (tmps,(const char * const *)argv);
	82	else
	83	rc=do_spawnvp (argv[0],(const char const )argv);
	84
	85	return rc;
	86	}
	87
	88	int
	89	do_spawn (char *cmd)
	90	{
acfe0abc	91	dTHX;
3f5211dd	92	char const **a;
a4ec4e68 JH	93	char *s;
a4ec4e68 JH	94	char const metachars = "$&(){}[]'\";\\?>\|<~`\n";
b4bcd662 GS	95	const char *command[4];
	96
	97	while (cmd && isSPACE(cmd))
	98	cmd++;
	99
	100	if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7]))
	101	cmd+=5;
	102
	103	/* save an extra exec if possible */
	104	/* see if there are shell metacharacters in it */
	105	if (strstr (cmd,"..."))
	106	goto doshell;
	107	if (*cmd=='.' && isSPACE (cmd[1]))
	108	goto doshell;
	109	if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4]))
	110	goto doshell;
	111	for (s=cmd; s && isALPHA (s); s++) ; /* catch VAR=val gizmo */
	112	if (*s=='=')
	113	goto doshell;
	114
	115	for (s=cmd; *s; s++)
	116	if (strchr (metachars,*s))
	117	{
	118	if (*s=='\n' && s[1]=='\0')
	119	{
	120	*s='\0';
	121	break;
	122	}
	123	doshell:
	124	command[0] = "sh";
	125	command[1] = "-c";
	126	command[2] = cmd;
	127	command[3] = NULL;
	128
	129	return do_spawnvp("sh",command);
	130	}
	131
ba495c01	132	Newx (PL_Argv, (s-cmd)/2+2, const char*);
b4bcd662 GS	133	PL_Cmd=savepvn (cmd,s-cmd);
	134	a=PL_Argv;
	135	for (s=PL_Cmd; *s;) {
	136	while (s && isSPACE (s)) s++;
	137	if (*s)
	138	*(a++)=s;
	139	while (s && !isSPACE (s)) s++;
	140	if (*s)
	141	*s++='\0';
	142	}
dfe169ee	143	a = (char)NULL;
b4bcd662 GS	144	if (!PL_Argv[0])
	145	return -1;
	146
	147	return do_spawnvp(PL_Argv[0],(const char * const *)PL_Argv);
	148	}
5db16f6a	149
803e389c RU	150	#if (CYGWIN_VERSION_API_MINOR >= 181)
	151	char*
	152	wide_to_utf8(const wchar_t *wbuf)
	153	{
	154	char *buf;
	155	int wlen = 0;
	156	char *oldlocale = setlocale(LC_CTYPE, NULL);
	157	setlocale(LC_CTYPE, "utf-8");
	158
	159	/* uvuni_to_utf8(buf, chr) or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
	160	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	161	buf = (char *) safemalloc(wlen+1);
	162	wcsrtombs(buf, (const wchar_t **)&wbuf, wlen, NULL);
	163
	164	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	165	else setlocale(LC_CTYPE, "C");
	166	return buf;
	167	}
	168
	169	wchar_t*
	170	utf8_to_wide(const char *buf)
	171	{
	172	wchar_t *wbuf;
	173	mbstate_t mbs;
	174	char *oldlocale = setlocale(LC_CTYPE, NULL);
	175	int wlen = sizeof(wchar_t)*strlen(buf);
	176
	177	setlocale(LC_CTYPE, "utf-8");
	178	wbuf = (wchar_t *) safemalloc(wlen);
4b88fb76	179	/* utf8_to_uvuni_buf(pathname, pathname + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	180	wlen = mbsrtowcs(wbuf, (const char**)&buf, wlen, &mbs);
	181
	182	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	183	else setlocale(LC_CTYPE, "C");
	184	return wbuf;
	185	}
	186	#endif /* cygwin 1.7 */
	187
5db16f6a	188	/* see also Cwd.pm */
5db16f6a EF	189	XS(Cygwin_cwd)
	190	{
	191	dXSARGS;
	192	char *cwd;
	193
482150a7 JH	194	/* See http://rt.perl.org/rt3/Ticket/Display.html?id=38628
	195	There is Cwd->cwd() usage in the wild, and previous versions didn't die.
	196	*/
	197	if(items > 1)
5db16f6a	198	Perl_croak(aTHX_ "Usage: Cwd::cwd()");
47dafe4d	199	if((cwd = getcwd(NULL, -1))) {
5db16f6a	200	ST(0) = sv_2mortal(newSVpv(cwd, 0));
a236cecb	201	free(cwd);
6be3b590 JH	202	#ifndef INCOMPLETE_TAINTS
	203	SvTAINTED_on(ST(0));
	204	#endif
5db16f6a EF	205	XSRETURN(1);
	206	}
	207	XSRETURN_UNDEF;
	208	}
	209
49fd6edc YST	210	XS(XS_Cygwin_pid_to_winpid)
	211	{
	212	dXSARGS;
d2dc0126 YST	213	dXSTARG;
	214	pid_t pid, RETVAL;
	215
49fd6edc YST	216	if (items != 1)
49fd6edc YST	217	Perl_croak(aTHX_ "Usage: Cygwin::pid_to_winpid(pid)");
d2dc0126 YST	218
	219	pid = (pid_t)SvIV(ST(0));
	220
49fd6edc YST	221	if ((RETVAL = cygwin_internal(CW_CYGWIN_PID_TO_WINPID, pid)) > 0) {
	222	XSprePUSH; PUSHi((IV)RETVAL);
	223	XSRETURN(1);
	224	}
	225	XSRETURN_UNDEF;
	226	}
	227
49fd6edc YST	228	XS(XS_Cygwin_winpid_to_pid)
	229	{
	230	dXSARGS;
d2dc0126 YST	231	dXSTARG;
	232	pid_t pid, RETVAL;
	233
49fd6edc YST	234	if (items != 1)
49fd6edc YST	235	Perl_croak(aTHX_ "Usage: Cygwin::winpid_to_pid(pid)");
d2dc0126 YST	236
	237	pid = (pid_t)SvIV(ST(0));
	238
803e389c RU	239	#if (CYGWIN_VERSION_API_MINOR >= 181)
	240	RETVAL = cygwin_winpid_to_pid(pid);
	241	#else
	242	RETVAL = cygwin32_winpid_to_pid(pid);
	243	#endif
	244	if (RETVAL > 0) {
49fd6edc YST	245	XSprePUSH; PUSHi((IV)RETVAL);
	246	XSRETURN(1);
	247	}
	248	XSRETURN_UNDEF;
	249	}
	250
15414d2b	251	XS(XS_Cygwin_win_to_posix_path)
803e389c	252
15414d2b RU	253	{
	254	dXSARGS;
	255	int absolute_flag = 0;
	256	STRLEN len;
ba495c01	257	int err = 0;
803e389c RU	258	char *src_path;
	259	char *posix_path;
	260	int isutf8 = 0;
15414d2b RU	261
	262	if (items < 1 \|\| items > 2)
	263	Perl_croak(aTHX_ "Usage: Cygwin::win_to_posix_path(pathname, [absolute])");
	264
803e389c	265	src_path = SvPV(ST(0), len);
15414d2b RU	266	if (items == 2)
	267	absolute_flag = SvTRUE(ST(1));
	268
	269	if (!len)
	270	Perl_croak(aTHX_ "can't convert empty path");
803e389c	271	isutf8 = SvUTF8(ST(0));
15414d2b	272
803e389c RU	273	#if (CYGWIN_VERSION_API_MINOR >= 181)
	274	/* Check utf8 flag and use wide api then.
	275	Size calculation: On overflow let cygwin_conv_path calculate the final size.
	276	*/
	277	if (isutf8) {
	278	int what = absolute_flag ? CCP_WIN_W_TO_POSIX : CCP_WIN_W_TO_POSIX \| CCP_RELATIVE;
	279	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	280	wchar_t wpath = (wchar_t ) safemalloc(sizeof(wchar_t)*len);
	281	wchar_t wbuf = (wchar_t ) safemalloc(wlen);
	282	if (!IN_BYTES) {
	283	mbstate_t mbs;
	284	char *oldlocale = setlocale(LC_CTYPE, NULL);
	285	setlocale(LC_CTYPE, "utf-8");
4b88fb76	286	/* utf8_to_uvuni_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	287	wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	288	if (wlen > 0)
	289	err = cygwin_conv_path(what, wpath, wbuf, wlen);
	290	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	291	else setlocale(LC_CTYPE, "C");
	292	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	293	err = cygwin_conv_path(what, src_path, wbuf, wlen);
	294	}
	295	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	296	int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	297	wbuf = (wchar_t *) realloc(&wbuf, newlen);
	298	err = cygwin_conv_path(what, wpath, wbuf, newlen);
	299	wlen = newlen;
	300	}
	301	/* utf16_to_utf8(p, d, bytlen, newlen) /
	302	posix_path = (char ) safemalloc(wlen3);
	303	Perl_utf16_to_utf8(aTHX_ (U8)&wpath, (U8)posix_path, (I32)wlen2, (I32)&len);
	304	/*
	305	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	306	posix_path = (char *) safemalloc(wlen+1);
	307	wcsrtombs(posix_path, (const wchar_t **)&wbuf, wlen, NULL);
	308	*/
	309	} else {
	310	int what = absolute_flag ? CCP_WIN_A_TO_POSIX : CCP_WIN_A_TO_POSIX \| CCP_RELATIVE;
	311	posix_path = (char *) safemalloc (len + 260 + 1001);
	312	err = cygwin_conv_path(what, src_path, posix_path, len + 260 + 1001);
	313	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	314	int newlen = cygwin_conv_path(what, src_path, posix_path, 0);
	315	posix_path = (char *) realloc(&posix_path, newlen);
	316	err = cygwin_conv_path(what, src_path, posix_path, newlen);
	317	}
	318	}
	319	#else
	320	posix_path = (char *) safemalloc (len + 260 + 1001);
15414d2b	321	if (absolute_flag)
803e389c	322	err = cygwin_conv_to_full_posix_path(src_path, posix_path);
15414d2b	323	else
803e389c RU	324	err = cygwin_conv_to_posix_path(src_path, posix_path);
803e389c RU	325	#endif
15414d2b	326	if (!err) {
803e389c RU	327	EXTEND(SP, 1);
	328	ST(0) = sv_2mortal(newSVpv(posix_path, 0));
	329	if (isutf8) { /* src was utf-8, so result should also */
	330	/* TODO: convert ANSI (local windows encoding) to utf-8 on cygwin-1.5 */
	331	SvUTF8_on(ST(0));
	332	}
	333	safefree(posix_path);
	334	XSRETURN(1);
15414d2b	335	} else {
803e389c	336	safefree(posix_path);
15414d2b RU	337	XSRETURN_UNDEF;
	338	}
	339	}
	340
	341	XS(XS_Cygwin_posix_to_win_path)
	342	{
	343	dXSARGS;
	344	int absolute_flag = 0;
	345	STRLEN len;
ba495c01	346	int err = 0;
803e389c RU	347	char src_path, win_path;
803e389c RU	348	int isutf8 = 0;
15414d2b RU	349
	350	if (items < 1 \|\| items > 2)
	351	Perl_croak(aTHX_ "Usage: Cygwin::posix_to_win_path(pathname, [absolute])");
	352
803e389c	353	src_path = SvPVx(ST(0), len);
15414d2b RU	354	if (items == 2)
	355	absolute_flag = SvTRUE(ST(1));
	356
	357	if (!len)
	358	Perl_croak(aTHX_ "can't convert empty path");
803e389c RU	359	isutf8 = SvUTF8(ST(0));
	360	#if (CYGWIN_VERSION_API_MINOR >= 181)
	361	/* Check utf8 flag and use wide api then.
	362	Size calculation: On overflow let cygwin_conv_path calculate the final size.
	363	*/
	364	if (isutf8) {
	365	int what = absolute_flag ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_W \| CCP_RELATIVE;
	366	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	367	wchar_t wpath = (wchar_t ) safemalloc(sizeof(wchar_t)*len);
	368	wchar_t wbuf = (wchar_t ) safemalloc(wlen);
	369	char *oldlocale = setlocale(LC_CTYPE, NULL);
	370	setlocale(LC_CTYPE, "utf-8");
	371	if (!IN_BYTES) {
	372	mbstate_t mbs;
4b88fb76	373	/* utf8_to_uvuni_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	374	wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	375	if (wlen > 0)
	376	err = cygwin_conv_path(what, wpath, wbuf, wlen);
	377	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	378	err = cygwin_conv_path(what, src_path, wbuf, wlen);
	379	}
	380	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	381	int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	382	wbuf = (wchar_t *) realloc(&wbuf, newlen);
	383	err = cygwin_conv_path(what, wpath, wbuf, newlen);
	384	wlen = newlen;
	385	}
	386	/* also see utf8.c: Perl_utf16_to_utf8() or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
	387	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	388	win_path = (char *) safemalloc(wlen+1);
	389	wcsrtombs(win_path, (const wchar_t **)&wbuf, wlen, NULL);
	390	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	391	else setlocale(LC_CTYPE, "C");
	392	} else {
	393	int what = absolute_flag ? CCP_POSIX_TO_WIN_A : CCP_POSIX_TO_WIN_A \| CCP_RELATIVE;
	394	win_path = (char *) safemalloc(len + 260 + 1001);
	395	err = cygwin_conv_path(what, src_path, win_path, len + 260 + 1001);
	396	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	397	int newlen = cygwin_conv_path(what, src_path, win_path, 0);
	398	win_path = (char *) realloc(&win_path, newlen);
	399	err = cygwin_conv_path(what, src_path, win_path, newlen);
	400	}
	401	}
	402	#else
	403	if (isutf8)
	404	Perl_warn(aTHX_ "can't convert utf8 path");
	405	win_path = (char *) safemalloc(len + 260 + 1001);
15414d2b	406	if (absolute_flag)
803e389c	407	err = cygwin_conv_to_full_win32_path(src_path, win_path);
15414d2b	408	else
803e389c RU	409	err = cygwin_conv_to_win32_path(src_path, win_path);
803e389c RU	410	#endif
15414d2b	411	if (!err) {
803e389c RU	412	EXTEND(SP, 1);
	413	ST(0) = sv_2mortal(newSVpv(win_path, 0));
	414	if (isutf8) {
	415	SvUTF8_on(ST(0));
	416	}
	417	safefree(win_path);
	418	XSRETURN(1);
15414d2b	419	} else {
803e389c	420	safefree(win_path);
15414d2b RU	421	XSRETURN_UNDEF;
	422	}
	423	}
	424
a25ce5f3 RU	425	XS(XS_Cygwin_mount_table)
	426	{
	427	dXSARGS;
	428	struct mntent *mnt;
	429
	430	if (items != 0)
	431	Perl_croak(aTHX_ "Usage: Cygwin::mount_table");
	432	/* => array of [mnt_dir mnt_fsname mnt_type mnt_opts] */
	433
	434	setmntent (0, 0);
	435	while ((mnt = getmntent (0))) {
	436	AV* av = newAV();
	437	av_push(av, newSVpvn(mnt->mnt_dir, strlen(mnt->mnt_dir)));
	438	av_push(av, newSVpvn(mnt->mnt_fsname, strlen(mnt->mnt_fsname)));
	439	av_push(av, newSVpvn(mnt->mnt_type, strlen(mnt->mnt_type)));
	440	av_push(av, newSVpvn(mnt->mnt_opts, strlen(mnt->mnt_opts)));
	441	XPUSHs(sv_2mortal(newRV_noinc((SV*)av)));
	442	}
	443	endmntent (0);
	444	PUTBACK;
	445	}
	446
	447	XS(XS_Cygwin_mount_flags)
	448	{
	449	dXSARGS;
	450	char *pathname;
803e389c RU	451	char flags[PATH_MAX];
803e389c RU	452	flags[0] = '\0';
a25ce5f3 RU	453
a25ce5f3 RU	454	if (items != 1)
803e389c	455	Perl_croak(aTHX_ "Usage: Cygwin::mount_flags( mnt_dir \| '/cygdrive' )");
a25ce5f3 RU	456
a25ce5f3 RU	457	pathname = SvPV_nolen(ST(0));
74dc058d	458
a25ce5f3	459	if (!strcmp(pathname, "/cygdrive")) {
803e389c RU	460	char user[PATH_MAX];
	461	char system[PATH_MAX];
	462	char user_flags[PATH_MAX];
	463	char system_flags[PATH_MAX];
74dc058d	464
803e389c RU	465	cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
803e389c RU	466	user_flags, system_flags);
74dc058d JH	467
	468	if (strlen(user) > 0) {
	469	sprintf(flags, "%s,cygdrive,%s", user_flags, user);
	470	} else {
	471	sprintf(flags, "%s,cygdrive,%s", system_flags, system);
	472	}
	473
a25ce5f3 RU	474	ST(0) = sv_2mortal(newSVpv(flags, 0));
a25ce5f3 RU	475	XSRETURN(1);
74dc058d	476
a25ce5f3 RU	477	} else {
a25ce5f3 RU	478	struct mntent *mnt;
803e389c	479	int found = 0;
a25ce5f3 RU	480	setmntent (0, 0);
	481	while ((mnt = getmntent (0))) {
	482	if (!strcmp(pathname, mnt->mnt_dir)) {
	483	strcpy(flags, mnt->mnt_type);
	484	if (strlen(mnt->mnt_opts) > 0) {
	485	strcat(flags, ",");
	486	strcat(flags, mnt->mnt_opts);
	487	}
803e389c	488	found++;
a25ce5f3 RU	489	break;
	490	}
	491	}
	492	endmntent (0);
803e389c RU	493
	494	/* Check if arg is the current volume moint point if not default,
	495	* and then use CW_GET_CYGDRIVE_INFO also.
	496	*/
	497	if (!found) {
	498	char user[PATH_MAX];
	499	char system[PATH_MAX];
	500	char user_flags[PATH_MAX];
	501	char system_flags[PATH_MAX];
	502
	503	cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
	504	user_flags, system_flags);
	505
	506	if (strlen(user) > 0) {
	507	if (strcmp(user,pathname)) {
	508	sprintf(flags, "%s,cygdrive,%s", user_flags, user);
	509	found++;
	510	}
	511	} else {
	512	if (strcmp(user,pathname)) {
	513	sprintf(flags, "%s,cygdrive,%s", system_flags, system);
	514	found++;
	515	}
	516	}
	517	}
	518	if (found) {
	519	ST(0) = sv_2mortal(newSVpv(flags, 0));
	520	XSRETURN(1);
	521	} else {
	522	XSRETURN_UNDEF;
	523	}
a25ce5f3 RU	524	}
	525	}
	526
15414d2b RU	527	XS(XS_Cygwin_is_binmount)
	528	{
	529	dXSARGS;
	530	char *pathname;
	531
	532	if (items != 1)
	533	Perl_croak(aTHX_ "Usage: Cygwin::is_binmount(pathname)");
	534
	535	pathname = SvPV_nolen(ST(0));
	536
	537	ST(0) = boolSV(cygwin_internal(CW_GET_BINMODE, pathname));
	538	XSRETURN(1);
	539	}
	540
286f8194 RU	541	XS(XS_Cygwin_sync_winenv){ cygwin_internal(CW_SYNC_WINENV); }
286f8194 RU	542
5db16f6a EF	543	void
	544	init_os_extras(void)
	545	{
5db16f6a	546	dTHX;
a4ec4e68	547	char const *file = __FILE__;
9fb265f7	548	void *handle;
5db16f6a EF	549
5db16f6a EF	550	newXS("Cwd::cwd", Cygwin_cwd, file);
15414d2b RU	551	newXSproto("Cygwin::winpid_to_pid", XS_Cygwin_winpid_to_pid, file, "$");
	552	newXSproto("Cygwin::pid_to_winpid", XS_Cygwin_pid_to_winpid, file, "$");
	553	newXSproto("Cygwin::win_to_posix_path", XS_Cygwin_win_to_posix_path, file, "$;$");
	554	newXSproto("Cygwin::posix_to_win_path", XS_Cygwin_posix_to_win_path, file, "$;$");
a25ce5f3 RU	555	newXSproto("Cygwin::mount_table", XS_Cygwin_mount_table, file, "");
a25ce5f3 RU	556	newXSproto("Cygwin::mount_flags", XS_Cygwin_mount_flags, file, "$");
15414d2b	557	newXSproto("Cygwin::is_binmount", XS_Cygwin_is_binmount, file, "$");
286f8194	558	newXS("Cygwin::sync_winenv", XS_Cygwin_sync_winenv, file);
78ff2d7b	559
9fb265f7 JD	560	/* Initialize Win32CORE if it has been statically linked. */
	561	handle = dlopen(NULL, RTLD_LAZY);
	562	if (handle) {
	563	void (*pfn_init)(pTHX);
	564	pfn_init = (void (*)(pTHX))dlsym(handle, "init_Win32CORE");
	565	if (pfn_init)
	566	pfn_init(aTHX);
	567	dlclose(handle);
78ff2d7b	568	}
5db16f6a	569	}