[perl5.git] / cygwin / cygwin.c

/*
 * Cygwin extras
 */

#define PERLIO_NOT_STDIO 0
#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;
    dVAR;

    /* Here and elsewhere in this file, we have a critical section to prevent
     * another thread from changing the locale out from under us.  XXX But why
     * not just use uvchr_to_utf8? */
    LOCALE_LOCK;

    oldlocale = setlocale(LC_CTYPE, NULL);
    setlocale(LC_CTYPE, "utf-8");

    /* uvchr_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");

    LOCALE_UNLOCK;

    return buf;
}

wchar_t*
utf8_to_wide(const char *buf)
{
    wchar_t *wbuf;
    mbstate_t mbs;
    char *oldlocale;
    int wlen = sizeof(wchar_t)*strlen(buf);
    dVAR;

    LOCALE_LOCK;

    oldlocale = setlocale(LC_CTYPE, NULL);

    setlocale(LC_CTYPE, "utf-8");
    wbuf = (wchar_t *) safemalloc(wlen);
    /* utf8_to_uvchr_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");

    LOCALE_UNLOCK;

    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);
	SvTAINTED_on(ST(0));
	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;
            dVAR;

            LOCALE_LOCK;

            oldlocale = setlocale(LC_CTYPE, NULL);
            setlocale(LC_CTYPE, "utf-8");
	    /* utf8_to_uvchr_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");

            LOCALE_UNLOCK;
	} 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;
        dVAR;

        LOCALE_LOCK;

	oldlocale = setlocale(LC_CTYPE, NULL);
	setlocale(LC_CTYPE, "utf-8");
	if (!IN_BYTES) {
	    mbstate_t mbs;
	    /* utf8_to_uvchr_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");

        LOCALE_UNLOCK;
    } 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
6cc44f62	5	#define PERLIO_NOT_STDIO 0
5db16f6a EF	6	#include "EXTERN.h"
	7	#include "perl.h"
	8	#undef USE_DYNAMIC_LOADING
	9	#include "XSUB.h"
	10
6b49d266	11	#include <unistd.h>
b4bcd662	12	#include <process.h>
49fd6edc	13	#include <sys/cygwin.h>
803e389c	14	#include <cygwin/version.h>
a25ce5f3	15	#include <mntent.h>
6d7e4387	16	#include <alloca.h>
9fb265f7	17	#include <dlfcn.h>
803e389c RU	18	#if (CYGWIN_VERSION_API_MINOR >= 181)
	19	#include <wchar.h>
	20	#endif
5db16f6a	21
b4bcd662 GS	22	/*
	23	* pp_system() implemented via spawn()
	24	* - more efficient and useful when embedding Perl in non-Cygwin apps
	25	* - code mostly borrowed from djgpp.c
	26	*/
	27	static int
	28	do_spawnvp (const char path, const char const *argv)
	29	{
acfe0abc	30	dTHX;
b4bcd662 GS	31	Sigsave_t ihand,qhand;
	32	int childpid, result, status;
	33
ec1aec95 YST	34	rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
ec1aec95 YST	35	rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
b4bcd662 GS	36	childpid = spawnvp(_P_NOWAIT,path,argv);
	37	if (childpid < 0) {
	38	status = -1;
411caa50	39	if(ckWARN(WARN_EXEC))
f98bc0c6	40	Perl_warner(aTHX_ packWARN(WARN_EXEC),"Can't spawn \"%s\": %s",
b4bcd662	41	path,Strerror (errno));
b4bcd662 GS	42	} else {
	43	do {
	44	result = wait4pid(childpid, &status, 0);
	45	} while (result == -1 && errno == EINTR);
	46	if(result < 0)
	47	status = -1;
	48	}
	49	(void)rsignal_restore(SIGINT, &ihand);
	50	(void)rsignal_restore(SIGQUIT, &qhand);
	51	return status;
	52	}
	53
	54	int
	55	do_aspawn (SV really, void mark, void *sp)
	56	{
acfe0abc	57	dTHX;
b4bcd662	58	int rc;
a4ec4e68 JH	59	char const **a;
	60	char tmps,*argv;
	61	STRLEN n_a;
b4bcd662 GS	62
	63	if (sp<=mark)
	64	return -1;
a4ec4e68 JH	65	argv=(char*) alloca ((sp-mark+3)sizeof (char*));
a4ec4e68 JH	66	a=(char const **)argv;
b4bcd662 GS	67
	68	while (++mark <= sp)
	69	if (*mark)
667e2948	70	a++ = SvPVx((SV )*mark, n_a);
b4bcd662 GS	71	else
b4bcd662 GS	72	*a++ = "";
dfe169ee	73	a = (char)NULL;
b4bcd662 GS	74
	75	if (argv[0][0] != '/' && argv[0][0] != '\\'
	76	&& !(argv[0][0] && argv[0][1] == ':'
	77	&& (argv[0][2] == '/' \|\| argv[0][2] != '\\'))
	78	) /* will swawnvp use PATH? */
	79	TAINT_ENV(); /* testing IFS here is overkill, probably */
	80
	81	if (really && *(tmps = SvPV(really, n_a)))
	82	rc=do_spawnvp (tmps,(const char * const *)argv);
	83	else
	84	rc=do_spawnvp (argv[0],(const char const )argv);
	85
	86	return rc;
	87	}
	88
	89	int
	90	do_spawn (char *cmd)
	91	{
acfe0abc	92	dTHX;
3f5211dd	93	char const **a;
a4ec4e68 JH	94	char *s;
a4ec4e68 JH	95	char const metachars = "$&(){}[]'\";\\?>\|<~`\n";
b4bcd662 GS	96	const char *command[4];
	97
	98	while (cmd && isSPACE(cmd))
	99	cmd++;
	100
	101	if (strnEQ (cmd,"/bin/sh",7) && isSPACE (cmd[7]))
	102	cmd+=5;
	103
	104	/* save an extra exec if possible */
	105	/* see if there are shell metacharacters in it */
	106	if (strstr (cmd,"..."))
	107	goto doshell;
	108	if (*cmd=='.' && isSPACE (cmd[1]))
	109	goto doshell;
	110	if (strnEQ (cmd,"exec",4) && isSPACE (cmd[4]))
	111	goto doshell;
	112	for (s=cmd; s && isALPHA (s); s++) ; /* catch VAR=val gizmo */
	113	if (*s=='=')
	114	goto doshell;
	115
	116	for (s=cmd; *s; s++)
	117	if (strchr (metachars,*s))
	118	{
	119	if (*s=='\n' && s[1]=='\0')
	120	{
	121	*s='\0';
	122	break;
	123	}
	124	doshell:
	125	command[0] = "sh";
	126	command[1] = "-c";
	127	command[2] = cmd;
	128	command[3] = NULL;
	129
	130	return do_spawnvp("sh",command);
	131	}
	132
ba495c01	133	Newx (PL_Argv, (s-cmd)/2+2, const char*);
b4bcd662 GS	134	PL_Cmd=savepvn (cmd,s-cmd);
	135	a=PL_Argv;
	136	for (s=PL_Cmd; *s;) {
	137	while (s && isSPACE (s)) s++;
	138	if (*s)
	139	*(a++)=s;
	140	while (s && !isSPACE (s)) s++;
	141	if (*s)
	142	*s++='\0';
	143	}
dfe169ee	144	a = (char)NULL;
b4bcd662 GS	145	if (!PL_Argv[0])
	146	return -1;
	147
	148	return do_spawnvp(PL_Argv[0],(const char * const *)PL_Argv);
	149	}
5db16f6a	150
803e389c RU	151	#if (CYGWIN_VERSION_API_MINOR >= 181)
	152	char*
	153	wide_to_utf8(const wchar_t *wbuf)
	154	{
	155	char *buf;
	156	int wlen = 0;
a0b53297 KW	157	char *oldlocale;
	158	dVAR;
	159
	160	/* Here and elsewhere in this file, we have a critical section to prevent
	161	* another thread from changing the locale out from under us. XXX But why
	162	* not just use uvchr_to_utf8? */
	163	LOCALE_LOCK;
	164
	165	oldlocale = setlocale(LC_CTYPE, NULL);
803e389c RU	166	setlocale(LC_CTYPE, "utf-8");
803e389c RU	167
c80e42f3	168	/* uvchr_to_utf8(buf, chr) or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
803e389c RU	169	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	170	buf = (char *) safemalloc(wlen+1);
	171	wcsrtombs(buf, (const wchar_t **)&wbuf, wlen, NULL);
	172
	173	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	174	else setlocale(LC_CTYPE, "C");
a0b53297 KW	175
	176	LOCALE_UNLOCK;
	177
803e389c RU	178	return buf;
	179	}
	180
	181	wchar_t*
	182	utf8_to_wide(const char *buf)
	183	{
	184	wchar_t *wbuf;
	185	mbstate_t mbs;
a0b53297	186	char *oldlocale;
803e389c	187	int wlen = sizeof(wchar_t)*strlen(buf);
a0b53297 KW	188	dVAR;
	189
	190	LOCALE_LOCK;
	191
	192	oldlocale = setlocale(LC_CTYPE, NULL);
803e389c RU	193
	194	setlocale(LC_CTYPE, "utf-8");
	195	wbuf = (wchar_t *) safemalloc(wlen);
c80e42f3	196	/* utf8_to_uvchr_buf(pathname, pathname + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	197	wlen = mbsrtowcs(wbuf, (const char**)&buf, wlen, &mbs);
	198
	199	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	200	else setlocale(LC_CTYPE, "C");
a0b53297 KW	201
	202	LOCALE_UNLOCK;
	203
803e389c RU	204	return wbuf;
	205	}
	206	#endif /* cygwin 1.7 */
	207
5db16f6a	208	/* see also Cwd.pm */
5db16f6a EF	209	XS(Cygwin_cwd)
	210	{
	211	dXSARGS;
	212	char *cwd;
	213
482150a7 JH	214	/* See http://rt.perl.org/rt3/Ticket/Display.html?id=38628
	215	There is Cwd->cwd() usage in the wild, and previous versions didn't die.
	216	*/
	217	if(items > 1)
5db16f6a	218	Perl_croak(aTHX_ "Usage: Cwd::cwd()");
47dafe4d	219	if((cwd = getcwd(NULL, -1))) {
5db16f6a	220	ST(0) = sv_2mortal(newSVpv(cwd, 0));
a236cecb	221	free(cwd);
6be3b590	222	SvTAINTED_on(ST(0));
5db16f6a EF	223	XSRETURN(1);
	224	}
	225	XSRETURN_UNDEF;
	226	}
	227
49fd6edc YST	228	XS(XS_Cygwin_pid_to_winpid)
	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::pid_to_winpid(pid)");
d2dc0126 YST	236
	237	pid = (pid_t)SvIV(ST(0));
	238
49fd6edc YST	239	if ((RETVAL = cygwin_internal(CW_CYGWIN_PID_TO_WINPID, pid)) > 0) {
	240	XSprePUSH; PUSHi((IV)RETVAL);
	241	XSRETURN(1);
	242	}
	243	XSRETURN_UNDEF;
	244	}
	245
49fd6edc YST	246	XS(XS_Cygwin_winpid_to_pid)
	247	{
	248	dXSARGS;
d2dc0126 YST	249	dXSTARG;
	250	pid_t pid, RETVAL;
	251
49fd6edc YST	252	if (items != 1)
49fd6edc YST	253	Perl_croak(aTHX_ "Usage: Cygwin::winpid_to_pid(pid)");
d2dc0126 YST	254
	255	pid = (pid_t)SvIV(ST(0));
	256
803e389c RU	257	#if (CYGWIN_VERSION_API_MINOR >= 181)
	258	RETVAL = cygwin_winpid_to_pid(pid);
	259	#else
	260	RETVAL = cygwin32_winpid_to_pid(pid);
	261	#endif
	262	if (RETVAL > 0) {
49fd6edc YST	263	XSprePUSH; PUSHi((IV)RETVAL);
	264	XSRETURN(1);
	265	}
	266	XSRETURN_UNDEF;
	267	}
	268
15414d2b	269	XS(XS_Cygwin_win_to_posix_path)
803e389c	270
15414d2b RU	271	{
	272	dXSARGS;
	273	int absolute_flag = 0;
	274	STRLEN len;
ba495c01	275	int err = 0;
803e389c RU	276	char *src_path;
	277	char *posix_path;
	278	int isutf8 = 0;
15414d2b RU	279
	280	if (items < 1 \|\| items > 2)
	281	Perl_croak(aTHX_ "Usage: Cygwin::win_to_posix_path(pathname, [absolute])");
	282
803e389c	283	src_path = SvPV(ST(0), len);
15414d2b RU	284	if (items == 2)
	285	absolute_flag = SvTRUE(ST(1));
	286
	287	if (!len)
	288	Perl_croak(aTHX_ "can't convert empty path");
803e389c	289	isutf8 = SvUTF8(ST(0));
15414d2b	290
803e389c RU	291	#if (CYGWIN_VERSION_API_MINOR >= 181)
	292	/* Check utf8 flag and use wide api then.
	293	Size calculation: On overflow let cygwin_conv_path calculate the final size.
	294	*/
	295	if (isutf8) {
	296	int what = absolute_flag ? CCP_WIN_W_TO_POSIX : CCP_WIN_W_TO_POSIX \| CCP_RELATIVE;
	297	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	298	wchar_t wpath = (wchar_t ) safemalloc(sizeof(wchar_t)*len);
	299	wchar_t wbuf = (wchar_t ) safemalloc(wlen);
	300	if (!IN_BYTES) {
	301	mbstate_t mbs;
a0b53297 KW	302	char *oldlocale;
	303	dVAR;
	304
	305	LOCALE_LOCK;
	306
	307	oldlocale = setlocale(LC_CTYPE, NULL);
803e389c	308	setlocale(LC_CTYPE, "utf-8");
c80e42f3	309	/* utf8_to_uvchr_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	310	wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	311	if (wlen > 0)
	312	err = cygwin_conv_path(what, wpath, wbuf, wlen);
	313	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	314	else setlocale(LC_CTYPE, "C");
a0b53297 KW	315
a0b53297 KW	316	LOCALE_UNLOCK;
803e389c RU	317	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	318	err = cygwin_conv_path(what, src_path, wbuf, wlen);
	319	}
	320	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	321	int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	322	wbuf = (wchar_t *) realloc(&wbuf, newlen);
	323	err = cygwin_conv_path(what, wpath, wbuf, newlen);
	324	wlen = newlen;
	325	}
	326	/* utf16_to_utf8(p, d, bytlen, newlen) /
	327	posix_path = (char ) safemalloc(wlen3);
	328	Perl_utf16_to_utf8(aTHX_ (U8)&wpath, (U8)posix_path, (I32)wlen2, (I32)&len);
	329	/*
	330	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	331	posix_path = (char *) safemalloc(wlen+1);
	332	wcsrtombs(posix_path, (const wchar_t **)&wbuf, wlen, NULL);
	333	*/
	334	} else {
	335	int what = absolute_flag ? CCP_WIN_A_TO_POSIX : CCP_WIN_A_TO_POSIX \| CCP_RELATIVE;
	336	posix_path = (char *) safemalloc (len + 260 + 1001);
	337	err = cygwin_conv_path(what, src_path, posix_path, len + 260 + 1001);
	338	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	339	int newlen = cygwin_conv_path(what, src_path, posix_path, 0);
	340	posix_path = (char *) realloc(&posix_path, newlen);
	341	err = cygwin_conv_path(what, src_path, posix_path, newlen);
	342	}
	343	}
	344	#else
	345	posix_path = (char *) safemalloc (len + 260 + 1001);
15414d2b	346	if (absolute_flag)
803e389c	347	err = cygwin_conv_to_full_posix_path(src_path, posix_path);
15414d2b	348	else
803e389c RU	349	err = cygwin_conv_to_posix_path(src_path, posix_path);
803e389c RU	350	#endif
15414d2b	351	if (!err) {
803e389c RU	352	EXTEND(SP, 1);
	353	ST(0) = sv_2mortal(newSVpv(posix_path, 0));
	354	if (isutf8) { /* src was utf-8, so result should also */
	355	/* TODO: convert ANSI (local windows encoding) to utf-8 on cygwin-1.5 */
	356	SvUTF8_on(ST(0));
	357	}
	358	safefree(posix_path);
	359	XSRETURN(1);
15414d2b	360	} else {
803e389c	361	safefree(posix_path);
15414d2b RU	362	XSRETURN_UNDEF;
	363	}
	364	}
	365
	366	XS(XS_Cygwin_posix_to_win_path)
	367	{
	368	dXSARGS;
	369	int absolute_flag = 0;
	370	STRLEN len;
ba495c01	371	int err = 0;
803e389c RU	372	char src_path, win_path;
803e389c RU	373	int isutf8 = 0;
15414d2b RU	374
	375	if (items < 1 \|\| items > 2)
	376	Perl_croak(aTHX_ "Usage: Cygwin::posix_to_win_path(pathname, [absolute])");
	377
803e389c	378	src_path = SvPVx(ST(0), len);
15414d2b RU	379	if (items == 2)
	380	absolute_flag = SvTRUE(ST(1));
	381
	382	if (!len)
	383	Perl_croak(aTHX_ "can't convert empty path");
803e389c RU	384	isutf8 = SvUTF8(ST(0));
	385	#if (CYGWIN_VERSION_API_MINOR >= 181)
	386	/* Check utf8 flag and use wide api then.
	387	Size calculation: On overflow let cygwin_conv_path calculate the final size.
	388	*/
	389	if (isutf8) {
	390	int what = absolute_flag ? CCP_POSIX_TO_WIN_W : CCP_POSIX_TO_WIN_W \| CCP_RELATIVE;
	391	int wlen = sizeof(wchar_t)*(len + 260 + 1001);
	392	wchar_t wpath = (wchar_t ) safemalloc(sizeof(wchar_t)*len);
	393	wchar_t wbuf = (wchar_t ) safemalloc(wlen);
a0b53297 KW	394	char *oldlocale;
	395	dVAR;
	396
	397	LOCALE_LOCK;
	398
	399	oldlocale = setlocale(LC_CTYPE, NULL);
803e389c RU	400	setlocale(LC_CTYPE, "utf-8");
	401	if (!IN_BYTES) {
	402	mbstate_t mbs;
c80e42f3	403	/* utf8_to_uvchr_buf(src_path, src_path + wlen, wpath) or Encoding::_utf8_to_bytes(sv, "UCS-2BE"); */
803e389c RU	404	wlen = mbsrtowcs(wpath, (const char**)&src_path, wlen, &mbs);
	405	if (wlen > 0)
	406	err = cygwin_conv_path(what, wpath, wbuf, wlen);
	407	} else { /* use bytes; assume already ucs-2 encoded bytestream */
	408	err = cygwin_conv_path(what, src_path, wbuf, wlen);
	409	}
	410	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	411	int newlen = cygwin_conv_path(what, wpath, wbuf, 0);
	412	wbuf = (wchar_t *) realloc(&wbuf, newlen);
	413	err = cygwin_conv_path(what, wpath, wbuf, newlen);
	414	wlen = newlen;
	415	}
	416	/* also see utf8.c: Perl_utf16_to_utf8() or Encoding::_bytes_to_utf8(sv, "UCS-2BE"); */
	417	wlen = wcsrtombs(NULL, (const wchar_t **)&wbuf, wlen, NULL);
	418	win_path = (char *) safemalloc(wlen+1);
	419	wcsrtombs(win_path, (const wchar_t **)&wbuf, wlen, NULL);
	420	if (oldlocale) setlocale(LC_CTYPE, oldlocale);
	421	else setlocale(LC_CTYPE, "C");
a0b53297 KW	422
a0b53297 KW	423	LOCALE_UNLOCK;
803e389c RU	424	} else {
	425	int what = absolute_flag ? CCP_POSIX_TO_WIN_A : CCP_POSIX_TO_WIN_A \| CCP_RELATIVE;
	426	win_path = (char *) safemalloc(len + 260 + 1001);
	427	err = cygwin_conv_path(what, src_path, win_path, len + 260 + 1001);
	428	if (err == ENOSPC) { /* our space assumption was wrong, not enough space */
	429	int newlen = cygwin_conv_path(what, src_path, win_path, 0);
	430	win_path = (char *) realloc(&win_path, newlen);
	431	err = cygwin_conv_path(what, src_path, win_path, newlen);
	432	}
	433	}
	434	#else
	435	if (isutf8)
	436	Perl_warn(aTHX_ "can't convert utf8 path");
	437	win_path = (char *) safemalloc(len + 260 + 1001);
15414d2b	438	if (absolute_flag)
803e389c	439	err = cygwin_conv_to_full_win32_path(src_path, win_path);
15414d2b	440	else
803e389c RU	441	err = cygwin_conv_to_win32_path(src_path, win_path);
803e389c RU	442	#endif
15414d2b	443	if (!err) {
803e389c RU	444	EXTEND(SP, 1);
	445	ST(0) = sv_2mortal(newSVpv(win_path, 0));
	446	if (isutf8) {
	447	SvUTF8_on(ST(0));
	448	}
	449	safefree(win_path);
	450	XSRETURN(1);
15414d2b	451	} else {
803e389c	452	safefree(win_path);
15414d2b RU	453	XSRETURN_UNDEF;
	454	}
	455	}
	456
a25ce5f3 RU	457	XS(XS_Cygwin_mount_table)
	458	{
	459	dXSARGS;
	460	struct mntent *mnt;
	461
	462	if (items != 0)
	463	Perl_croak(aTHX_ "Usage: Cygwin::mount_table");
	464	/* => array of [mnt_dir mnt_fsname mnt_type mnt_opts] */
	465
	466	setmntent (0, 0);
	467	while ((mnt = getmntent (0))) {
	468	AV* av = newAV();
	469	av_push(av, newSVpvn(mnt->mnt_dir, strlen(mnt->mnt_dir)));
	470	av_push(av, newSVpvn(mnt->mnt_fsname, strlen(mnt->mnt_fsname)));
	471	av_push(av, newSVpvn(mnt->mnt_type, strlen(mnt->mnt_type)));
	472	av_push(av, newSVpvn(mnt->mnt_opts, strlen(mnt->mnt_opts)));
	473	XPUSHs(sv_2mortal(newRV_noinc((SV*)av)));
	474	}
	475	endmntent (0);
	476	PUTBACK;
	477	}
	478
	479	XS(XS_Cygwin_mount_flags)
	480	{
	481	dXSARGS;
	482	char *pathname;
803e389c RU	483	char flags[PATH_MAX];
803e389c RU	484	flags[0] = '\0';
a25ce5f3 RU	485
a25ce5f3 RU	486	if (items != 1)
803e389c	487	Perl_croak(aTHX_ "Usage: Cygwin::mount_flags( mnt_dir \| '/cygdrive' )");
a25ce5f3 RU	488
a25ce5f3 RU	489	pathname = SvPV_nolen(ST(0));
74dc058d	490
a25ce5f3	491	if (!strcmp(pathname, "/cygdrive")) {
803e389c RU	492	char user[PATH_MAX];
	493	char system[PATH_MAX];
	494	char user_flags[PATH_MAX];
	495	char system_flags[PATH_MAX];
74dc058d	496
803e389c RU	497	cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
803e389c RU	498	user_flags, system_flags);
74dc058d JH	499
	500	if (strlen(user) > 0) {
	501	sprintf(flags, "%s,cygdrive,%s", user_flags, user);
	502	} else {
	503	sprintf(flags, "%s,cygdrive,%s", system_flags, system);
	504	}
	505
a25ce5f3 RU	506	ST(0) = sv_2mortal(newSVpv(flags, 0));
a25ce5f3 RU	507	XSRETURN(1);
74dc058d	508
a25ce5f3 RU	509	} else {
a25ce5f3 RU	510	struct mntent *mnt;
803e389c	511	int found = 0;
a25ce5f3 RU	512	setmntent (0, 0);
	513	while ((mnt = getmntent (0))) {
	514	if (!strcmp(pathname, mnt->mnt_dir)) {
	515	strcpy(flags, mnt->mnt_type);
	516	if (strlen(mnt->mnt_opts) > 0) {
	517	strcat(flags, ",");
	518	strcat(flags, mnt->mnt_opts);
	519	}
803e389c	520	found++;
a25ce5f3 RU	521	break;
	522	}
	523	}
	524	endmntent (0);
803e389c RU	525
	526	/* Check if arg is the current volume moint point if not default,
	527	* and then use CW_GET_CYGDRIVE_INFO also.
	528	*/
	529	if (!found) {
	530	char user[PATH_MAX];
	531	char system[PATH_MAX];
	532	char user_flags[PATH_MAX];
	533	char system_flags[PATH_MAX];
	534
	535	cygwin_internal (CW_GET_CYGDRIVE_INFO, user, system,
	536	user_flags, system_flags);
	537
	538	if (strlen(user) > 0) {
	539	if (strcmp(user,pathname)) {
	540	sprintf(flags, "%s,cygdrive,%s", user_flags, user);
	541	found++;
	542	}
	543	} else {
	544	if (strcmp(user,pathname)) {
	545	sprintf(flags, "%s,cygdrive,%s", system_flags, system);
	546	found++;
	547	}
	548	}
	549	}
	550	if (found) {
	551	ST(0) = sv_2mortal(newSVpv(flags, 0));
	552	XSRETURN(1);
	553	} else {
	554	XSRETURN_UNDEF;
	555	}
a25ce5f3 RU	556	}
	557	}
	558
15414d2b RU	559	XS(XS_Cygwin_is_binmount)
	560	{
	561	dXSARGS;
	562	char *pathname;
	563
	564	if (items != 1)
	565	Perl_croak(aTHX_ "Usage: Cygwin::is_binmount(pathname)");
	566
	567	pathname = SvPV_nolen(ST(0));
	568
	569	ST(0) = boolSV(cygwin_internal(CW_GET_BINMODE, pathname));
	570	XSRETURN(1);
	571	}
	572
286f8194 RU	573	XS(XS_Cygwin_sync_winenv){ cygwin_internal(CW_SYNC_WINENV); }
286f8194 RU	574
5db16f6a EF	575	void
	576	init_os_extras(void)
	577	{
5db16f6a	578	dTHX;
a4ec4e68	579	char const *file = __FILE__;
9fb265f7	580	void *handle;
5db16f6a EF	581
5db16f6a EF	582	newXS("Cwd::cwd", Cygwin_cwd, file);
15414d2b RU	583	newXSproto("Cygwin::winpid_to_pid", XS_Cygwin_winpid_to_pid, file, "$");
	584	newXSproto("Cygwin::pid_to_winpid", XS_Cygwin_pid_to_winpid, file, "$");
	585	newXSproto("Cygwin::win_to_posix_path", XS_Cygwin_win_to_posix_path, file, "$;$");
	586	newXSproto("Cygwin::posix_to_win_path", XS_Cygwin_posix_to_win_path, file, "$;$");
a25ce5f3 RU	587	newXSproto("Cygwin::mount_table", XS_Cygwin_mount_table, file, "");
a25ce5f3 RU	588	newXSproto("Cygwin::mount_flags", XS_Cygwin_mount_flags, file, "$");
15414d2b	589	newXSproto("Cygwin::is_binmount", XS_Cygwin_is_binmount, file, "$");
286f8194	590	newXS("Cygwin::sync_winenv", XS_Cygwin_sync_winenv, file);
78ff2d7b	591
9fb265f7 JD	592	/* Initialize Win32CORE if it has been statically linked. */
	593	handle = dlopen(NULL, RTLD_LAZY);
	594	if (handle) {
	595	void (*pfn_init)(pTHX);
	596	pfn_init = (void (*)(pTHX))dlsym(handle, "init_Win32CORE");
	597	if (pfn_init)
	598	pfn_init(aTHX);
	599	dlclose(handle);
78ff2d7b	600	}
5db16f6a	601	}