[p5sagit/p5-mst-13.2.git] / ext / IO / IO.xs

/*
 * Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
 * This program is free software; you can redistribute it and/or
 * modify it under the same terms as Perl itself.
 */

#define PERL_EXT_IO

#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#define PERLIO_NOT_STDIO 1
#include "perl.h"
#include "XSUB.h"
#include "poll.h"
#ifdef I_UNISTD
#  include <unistd.h>
#endif
#if defined(I_FCNTL) || defined(HAS_FCNTL)
#  include <fcntl.h>
#endif

#ifndef SIOCATMARK
#   ifdef I_SYS_SOCKIO
#       include <sys/sockio.h>
#   endif
#endif

#ifdef PerlIO
#if defined(MACOS_TRADITIONAL) && defined(USE_SFIO)
#define PERLIO_IS_STDIO 1
#undef setbuf
#undef setvbuf
#define setvbuf		_stdsetvbuf
#define setbuf(f,b)	( __sf_setbuf(f,b) )
#endif
typedef int SysRet;
typedef PerlIO * InputStream;
typedef PerlIO * OutputStream;
#else
#define PERLIO_IS_STDIO 1
typedef int SysRet;
typedef FILE * InputStream;
typedef FILE * OutputStream;
#endif

#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)

#ifndef gv_stashpvn
#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
#endif

static int
not_here(char *s)
{
    croak("%s not implemented on this architecture", s);
    return -1;
}


#ifndef PerlIO
#define PerlIO_fileno(f) fileno(f)
#endif

static int
io_blocking(pTHX_ InputStream f, int block)
{
#if defined(HAS_FCNTL)
    int RETVAL;
    if(!f) {
	errno = EBADF;
	return -1;
    }
    RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
    if (RETVAL >= 0) {
	int mode = RETVAL;
	int newmode = mode;
#ifdef O_NONBLOCK
	/* POSIX style */

# ifndef O_NDELAY
#  define O_NDELAY O_NONBLOCK
# endif
	/* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
	 * after a successful F_SETFL of an O_NONBLOCK. */
	RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1;

	if (block == 0) {
	    newmode &= ~O_NDELAY;
	    newmode |= O_NONBLOCK;
	} else if (block > 0) {
	    newmode &= ~(O_NDELAY|O_NONBLOCK);
	}
#else
	/* Not POSIX - better have O_NDELAY or we can't cope.
	 * for BSD-ish machines this is an acceptable alternative
	 * for SysV we can't tell "would block" from EOF but that is
	 * the way SysV is...
	 */
	RETVAL = RETVAL & O_NDELAY ? 0 : 1;

	if (block == 0) {
	    newmode |= O_NDELAY;
	} else if (block > 0) {
	    newmode &= ~O_NDELAY;
	}
#endif
	if (newmode != mode) {
	    int ret;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode);
	    if (ret < 0)
		RETVAL = ret;
	}
    }
    return RETVAL;
#else
    return -1;
#endif
}

MODULE = IO	PACKAGE = IO::Seekable	PREFIX = f

void
fgetpos(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
	    ST(0) = sv_2mortal(newSV(0));
	    if (PerlIO_getpos(handle, ST(0)) != 0) {
		ST(0) = &PL_sv_undef;
	    }
#else
	    if (fgetpos(handle, &pos)) {
		ST(0) = &PL_sv_undef;
	    } else {
		ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	    }
#endif
	}
	else {
	    ST(0) = &PL_sv_undef;
	    errno = EINVAL;
	}

SysRet
fsetpos(handle, pos)
	InputStream	handle
	SV *		pos
    CODE:
	if (handle) {
#ifdef PerlIO
	    RETVAL = PerlIO_setpos(handle, pos);
#else
	    char *p;
	    STRLEN len;
	    if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
		RETVAL = fsetpos(handle, (Fpos_t*)p);
	    }
	    else {
		RETVAL = -1;
		errno = EINVAL;
	    }
#endif
	}
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

MODULE = IO	PACKAGE = IO::File	PREFIX = f

void
new_tmpfile(packname = "IO::File")
    char *		packname
    PREINIT:
	OutputStream fp;
	GV *gv;
    CODE:
#ifdef PerlIO
	fp = PerlIO_tmpfile();
#else
	fp = tmpfile();
#endif
	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
	    ST(0) = sv_2mortal(newRV((SV*)gv));
	    sv_bless(ST(0), gv_stashpv(packname, TRUE));
	    SvREFCNT_dec(gv);   /* undo increment in newRV() */
	}
	else {
	    ST(0) = &PL_sv_undef;
	    SvREFCNT_dec(gv);
	}

MODULE = IO	PACKAGE = IO::Poll

void
_poll(timeout,...)
	int timeout;
PPCODE:
{
#ifdef HAS_POLL
    int nfd = (items - 1) / 2;
    SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd));
    struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv);
    int i,j,ret;
    for(i=1, j=0  ; j < nfd ; j++) {
	fds[j].fd = SvIV(ST(i));
	i++;
	fds[j].events = (short)SvIV(ST(i));
	i++;
	fds[j].revents = 0;
    }
    if((ret = poll(fds,nfd,timeout)) >= 0) {
	for(i=1, j=0 ; j < nfd ; j++) {
	    sv_setiv(ST(i), fds[j].fd); i++;
	    sv_setiv(ST(i), fds[j].revents); i++;
	}
    }
    SvREFCNT_dec(tmpsv);
    XSRETURN_IV(ret);
#else
	not_here("IO::Poll::poll");
#endif
}

MODULE = IO	PACKAGE = IO::Handle	PREFIX = io_

void
io_blocking(handle,blk=-1)
	InputStream	handle
	int		blk
PROTOTYPE: $;$
CODE:
{
    int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
    if(ret >= 0)
	XSRETURN_IV(ret);
    else
	XSRETURN_UNDEF;
}

MODULE = IO	PACKAGE = IO::Handle	PREFIX = f

int
ungetc(handle, c)
	InputStream	handle
	int		c
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_ungetc(handle, c);
#else
	    RETVAL = ungetc(c, handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
ferror(handle)
	InputStream	handle
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_error(handle);
#else
	    RETVAL = ferror(handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
clearerr(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
	    PerlIO_clearerr(handle);
#else
	    clearerr(handle);
#endif
	    RETVAL = 0;
	}
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
untaint(handle)
       SV *	handle
    CODE:
#ifdef IOf_UNTAINT
	IO * io;
	io = sv_2io(handle);
	if (io) {
	    IoFLAGS(io) |= IOf_UNTAINT;
	    RETVAL = 0;
	}
        else {
#endif
	    RETVAL = -1;
	    errno = EINVAL;
#ifdef IOf_UNTAINT
	}
#endif
    OUTPUT:
	RETVAL

SysRet
fflush(handle)
	OutputStream	handle
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_flush(handle);
#else
	    RETVAL = Fflush(handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

void
setbuf(handle, ...)
	OutputStream	handle
    CODE:
	if (handle)
#ifdef PERLIO_IS_STDIO
        {
	    char *buf = items == 2 && SvPOK(ST(1)) ?
	      sv_grow(ST(1), BUFSIZ) : 0;
	    setbuf(handle, buf);
	}
#else
	    not_here("IO::Handle::setbuf");
#endif

SysRet
setvbuf(...)
    CODE:
	if (items != 4)
            Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
    {
        OutputStream	handle = 0;
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	int		type;
	int		size;

	if (items == 4) {
	    handle = IoOFP(sv_2io(ST(0)));
	    buf    = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	    type   = (int)SvIV(ST(2));
	    size   = (int)SvIV(ST(3));
	}
	if (!handle)			/* Try input stream. */
	    handle = IoIFP(sv_2io(ST(0)));
	if (items == 4 && handle)
	    RETVAL = setvbuf(handle, buf, type, size);
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    }
#else
	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
#endif
    OUTPUT:
	RETVAL


SysRet
fsync(handle)
	OutputStream handle
    CODE:
#ifdef HAS_FSYNC
	if(handle)
	    RETVAL = fsync(PerlIO_fileno(handle));
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
#else
	RETVAL = (SysRet) not_here("IO::Handle::sync");
#endif
    OUTPUT:
	RETVAL


MODULE = IO	PACKAGE = IO::Socket

SysRet
sockatmark (sock)
   InputStream sock
   PROTOTYPE: $
   PREINIT:
     int fd;
   CODE:
   {
     fd = PerlIO_fileno(sock);
#ifdef HAS_SOCKATMARK
     RETVAL = sockatmark(fd);
#else
     {
       int flag = 0;
#   ifdef SIOCATMARK
#     if defined(NETWARE) || defined(WIN32)
       if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
#     else
       if (ioctl(fd, SIOCATMARK, &flag) != 0)
#     endif
	 XSRETURN_UNDEF;
#   else
       not_here("IO::Socket::atmark");
#   endif
       RETVAL = flag;
     }
#endif
   }
   OUTPUT:
     RETVAL

BOOT:
{
    HV *stash;
    /*
     * constant subs for IO::Poll
     */
    stash = gv_stashpvn("IO::Poll", 8, TRUE);
#ifdef	POLLIN
	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
#endif
#ifdef	POLLPRI
        newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
#endif
#ifdef	POLLOUT
        newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
#endif
#ifdef	POLLRDNORM
        newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
#endif
#ifdef	POLLWRNORM
        newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
#endif
#ifdef	POLLRDBAND
        newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
#endif
#ifdef	POLLWRBAND
        newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
#endif
#ifdef	POLLNORM
        newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
#endif
#ifdef	POLLERR
        newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
#endif
#ifdef	POLLHUP
        newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
#endif
#ifdef	POLLNVAL
        newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
#endif
    /*
     * constant subs for IO::Handle
     */
    stash = gv_stashpvn("IO::Handle", 10, TRUE);
#ifdef _IOFBF
        newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
#endif
#ifdef _IOLBF
        newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
#endif
#ifdef _IONBF
        newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
#endif
#ifdef SEEK_SET
        newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
#endif
#ifdef SEEK_CUR
        newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
#endif
#ifdef SEEK_END
        newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
#endif
}
Commit	Line	Data
cf7fe8a2	1	/*
	2	* Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
	3	* This program is free software; you can redistribute it and/or
	4	* modify it under the same terms as Perl itself.
	5	*/
	6
6e22d046	7	#define PERL_EXT_IO
6e22d046	8
c5be433b	9	#define PERL_NO_GET_CONTEXT
8add82fc	10	#include "EXTERN.h"
760ac839	11	#define PERLIO_NOT_STDIO 1
8add82fc	12	#include "perl.h"
8add82fc	13	#include "XSUB.h"
cf7fe8a2	14	#include "poll.h"
8add82fc	15	#ifdef I_UNISTD
	16	# include <unistd.h>
	17	#endif
cf7fe8a2	18	#if defined(I_FCNTL) \|\| defined(HAS_FCNTL)
760ac839	19	# include <fcntl.h>
760ac839	20	#endif
8add82fc	21
63a347c7	22	#ifndef SIOCATMARK
	23	# ifdef I_SYS_SOCKIO
	24	# include <sys/sockio.h>
	25	# endif
	26	#endif
	27
2a0cf753	28	#ifdef PerlIO
eb44fba6	29	#if defined(MACOS_TRADITIONAL) && defined(USE_SFIO)
824215e2	30	#define PERLIO_IS_STDIO 1
	31	#undef setbuf
	32	#undef setvbuf
	33	#define setvbuf _stdsetvbuf
	34	#define setbuf(f,b) ( __sf_setbuf(f,b) )
	35	#endif
8add82fc	36	typedef int SysRet;
760ac839	37	typedef PerlIO * InputStream;
760ac839	38	typedef PerlIO * OutputStream;
2a0cf753	39	#else
	40	#define PERLIO_IS_STDIO 1
	41	typedef int SysRet;
	42	typedef FILE * InputStream;
	43	typedef FILE * OutputStream;
	44	#endif
8add82fc	45
cceca5ed	46	#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
cf7fe8a2	47
	48	#ifndef gv_stashpvn
	49	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	50	#endif
	51
8add82fc	52	static int
a1ea39dc	53	not_here(char *s)
8add82fc	54	{
	55	croak("%s not implemented on this architecture", s);
	56	return -1;
	57	}
	58
cf7fe8a2	59
	60	#ifndef PerlIO
	61	#define PerlIO_fileno(f) fileno(f)
8add82fc	62	#endif
cf7fe8a2	63
cf7fe8a2	64	static int
e87a358a	65	io_blocking(pTHX_ InputStream f, int block)
cf7fe8a2	66	{
91f3b821	67	#if defined(HAS_FCNTL)
cf7fe8a2	68	int RETVAL;
	69	if(!f) {
	70	errno = EBADF;
	71	return -1;
	72	}
cf7fe8a2	73	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	74	if (RETVAL >= 0) {
	75	int mode = RETVAL;
3b2f3eeb	76	int newmode = mode;
cf7fe8a2	77	#ifdef O_NONBLOCK
766a733e	78	/* POSIX style */
cf7fe8a2	79
3b2f3eeb	80	# ifndef O_NDELAY
	81	# define O_NDELAY O_NONBLOCK
	82	# endif
	83	/* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
6fd254a4	84	* after a successful F_SETFL of an O_NONBLOCK. */
	85	RETVAL = RETVAL & (O_NONBLOCK \| O_NDELAY) ? 0 : 1;
	86
3b2f3eeb	87	if (block == 0) {
	88	newmode &= ~O_NDELAY;
	89	newmode \|= O_NONBLOCK;
	90	} else if (block > 0) {
	91	newmode &= ~(O_NDELAY\|O_NONBLOCK);
cf7fe8a2	92	}
8add82fc	93	#else
cf7fe8a2	94	/* Not POSIX - better have O_NDELAY or we can't cope.
cf7fe8a2	95	* for BSD-ish machines this is an acceptable alternative
766a733e	96	* for SysV we can't tell "would block" from EOF but that is
cf7fe8a2	97	* the way SysV is...
	98	*/
	99	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	100
3b2f3eeb	101	if (block == 0) {
	102	newmode \|= O_NDELAY;
	103	} else if (block > 0) {
	104	newmode &= ~O_NDELAY;
	105	}
	106	#endif
	107	if (newmode != mode) {
cf7fe8a2	108	int ret;
3b2f3eeb	109	ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode);
3b2f3eeb	110	if (ret < 0)
cf7fe8a2	111	RETVAL = ret;
3b2f3eeb	112	}
cf7fe8a2	113	}
cf7fe8a2	114	return RETVAL;
8add82fc	115	#else
91f3b821	116	return -1;
8add82fc	117	#endif
8add82fc	118	}
8add82fc	119
8add82fc	120	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
8add82fc	121
8063af02	122	void
8add82fc	123	fgetpos(handle)
	124	InputStream handle
	125	CODE:
8add82fc	126	if (handle) {
2a0cf753	127	#ifdef PerlIO
766a733e	128	ST(0) = sv_2mortal(newSV(0));
	129	if (PerlIO_getpos(handle, ST(0)) != 0) {
	130	ST(0) = &PL_sv_undef;
	131	}
2a0cf753	132	#else
766a733e	133	if (fgetpos(handle, &pos)) {
a6a714bd	134	ST(0) = &PL_sv_undef;
	135	} else {
	136	ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	137	}
766a733e	138	#endif
8add82fc	139	}
8add82fc	140	else {
a1ea39dc	141	ST(0) = &PL_sv_undef;
8add82fc	142	errno = EINVAL;
8add82fc	143	}
8add82fc	144
	145	SysRet
	146	fsetpos(handle, pos)
	147	InputStream handle
	148	SV * pos
	149	CODE:
766a733e	150	if (handle) {
2a0cf753	151	#ifdef PerlIO
766a733e	152	RETVAL = PerlIO_setpos(handle, pos);
2a0cf753	153	#else
766a733e	154	char *p;
	155	STRLEN len;
	156	if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	157	RETVAL = fsetpos(handle, (Fpos_t*)p);
	158	}
	159	else {
	160	RETVAL = -1;
	161	errno = EINVAL;
	162	}
2a0cf753	163	#endif
766a733e	164	}
8add82fc	165	else {
	166	RETVAL = -1;
	167	errno = EINVAL;
	168	}
8add82fc	169	OUTPUT:
	170	RETVAL
	171
	172	MODULE = IO PACKAGE = IO::File PREFIX = f
	173
8063af02	174	void
8add82fc	175	new_tmpfile(packname = "IO::File")
8add82fc	176	char * packname
a375a877	177	PREINIT:
	178	OutputStream fp;
	179	GV *gv;
8add82fc	180	CODE:
2a0cf753	181	#ifdef PerlIO
a375a877	182	fp = PerlIO_tmpfile();
2a0cf753	183	#else
a375a877	184	fp = tmpfile();
2a0cf753	185	#endif
a375a877	186	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	187	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	188	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	189	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	190	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	191	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	192	}
a375a877	193	else {
a1ea39dc	194	ST(0) = &PL_sv_undef;
a375a877	195	SvREFCNT_dec(gv);
a375a877	196	}
8add82fc	197
cf7fe8a2	198	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2	199
766a733e	200	void
cf7fe8a2	201	_poll(timeout,...)
	202	int timeout;
	203	PPCODE:
	204	{
	205	#ifdef HAS_POLL
	206	int nfd = (items - 1) / 2;
	207	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	208	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	209	int i,j,ret;
	210	for(i=1, j=0 ; j < nfd ; j++) {
	211	fds[j].fd = SvIV(ST(i));
	212	i++;
7c436af3	213	fds[j].events = (short)SvIV(ST(i));
cf7fe8a2	214	i++;
	215	fds[j].revents = 0;
	216	}
	217	if((ret = poll(fds,nfd,timeout)) >= 0) {
	218	for(i=1, j=0 ; j < nfd ; j++) {
	219	sv_setiv(ST(i), fds[j].fd); i++;
	220	sv_setiv(ST(i), fds[j].revents); i++;
	221	}
	222	}
	223	SvREFCNT_dec(tmpsv);
	224	XSRETURN_IV(ret);
	225	#else
	226	not_here("IO::Poll::poll");
	227	#endif
	228	}
	229
	230	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	231
	232	void
	233	io_blocking(handle,blk=-1)
	234	InputStream handle
	235	int blk
	236	PROTOTYPE: $;$
	237	CODE:
	238	{
e87a358a	239	int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
cf7fe8a2	240	if(ret >= 0)
	241	XSRETURN_IV(ret);
	242	else
	243	XSRETURN_UNDEF;
	244	}
	245
8add82fc	246	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	247
8add82fc	248	int
	249	ungetc(handle, c)
	250	InputStream handle
	251	int c
	252	CODE:
	253	if (handle)
2a0cf753	254	#ifdef PerlIO
760ac839	255	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	256	#else
	257	RETVAL = ungetc(c, handle);
	258	#endif
8add82fc	259	else {
	260	RETVAL = -1;
	261	errno = EINVAL;
	262	}
	263	OUTPUT:
	264	RETVAL
	265
	266	int
	267	ferror(handle)
	268	InputStream handle
	269	CODE:
	270	if (handle)
2a0cf753	271	#ifdef PerlIO
760ac839	272	RETVAL = PerlIO_error(handle);
2a0cf753	273	#else
	274	RETVAL = ferror(handle);
	275	#endif
	276	else {
	277	RETVAL = -1;
	278	errno = EINVAL;
	279	}
	280	OUTPUT:
	281	RETVAL
	282
	283	int
	284	clearerr(handle)
	285	InputStream handle
	286	CODE:
	287	if (handle) {
	288	#ifdef PerlIO
	289	PerlIO_clearerr(handle);
	290	#else
	291	clearerr(handle);
	292	#endif
	293	RETVAL = 0;
	294	}
8add82fc	295	else {
8add82fc	296	RETVAL = -1;
59629a13	297	errno = EINVAL;
	298	}
	299	OUTPUT:
	300	RETVAL
	301
	302	int
	303	untaint(handle)
	304	SV * handle
	305	CODE:
7a4c00b4	306	#ifdef IOf_UNTAINT
59629a13	307	IO * io;
	308	io = sv_2io(handle);
	309	if (io) {
	310	IoFLAGS(io) \|= IOf_UNTAINT;
	311	RETVAL = 0;
	312	}
	313	else {
7a4c00b4	314	#endif
59629a13	315	RETVAL = -1;
8add82fc	316	errno = EINVAL;
7a4c00b4	317	#ifdef IOf_UNTAINT
8add82fc	318	}
7a4c00b4	319	#endif
8add82fc	320	OUTPUT:
	321	RETVAL
	322
	323	SysRet
	324	fflush(handle)
	325	OutputStream handle
	326	CODE:
	327	if (handle)
2a0cf753	328	#ifdef PerlIO
760ac839	329	RETVAL = PerlIO_flush(handle);
2a0cf753	330	#else
	331	RETVAL = Fflush(handle);
	332	#endif
8add82fc	333	else {
	334	RETVAL = -1;
	335	errno = EINVAL;
	336	}
	337	OUTPUT:
	338	RETVAL
	339
	340	void
c46a0ec2	341	setbuf(handle, ...)
8add82fc	342	OutputStream handle
8add82fc	343	CODE:
8add82fc	344	if (handle)
760ac839	345	#ifdef PERLIO_IS_STDIO
c46a0ec2	346	{
	347	char *buf = items == 2 && SvPOK(ST(1)) ?
	348	sv_grow(ST(1), BUFSIZ) : 0;
8add82fc	349	setbuf(handle, buf);
c46a0ec2	350	}
760ac839	351	#else
	352	not_here("IO::Handle::setbuf");
	353	#endif
8add82fc	354
8add82fc	355	SysRet
c46a0ec2	356	setvbuf(...)
8add82fc	357	CODE:
c46a0ec2	358	if (items != 4)
c46a0ec2	359	Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
1eeb0f31	360	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
c46a0ec2	361	{
	362	OutputStream handle = 0;
	363	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	364	int type;
	365	int size;
	366
	367	if (items == 4) {
	368	handle = IoOFP(sv_2io(ST(0)));
	369	buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	370	type = (int)SvIV(ST(2));
	371	size = (int)SvIV(ST(3));
	372	}
d924de76	373	if (!handle) /* Try input stream. */
d924de76	374	handle = IoIFP(sv_2io(ST(0)));
c46a0ec2	375	if (items == 4 && handle)
8add82fc	376	RETVAL = setvbuf(handle, buf, type, size);
	377	else {
	378	RETVAL = -1;
	379	errno = EINVAL;
	380	}
c46a0ec2	381	}
8add82fc	382	#else
61839fa9	383	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	384	#endif
8add82fc	385	OUTPUT:
	386	RETVAL
	387
	388
cf7fe8a2	389	SysRet
	390	fsync(handle)
	391	OutputStream handle
	392	CODE:
	393	#ifdef HAS_FSYNC
	394	if(handle)
	395	RETVAL = fsync(PerlIO_fileno(handle));
	396	else {
	397	RETVAL = -1;
	398	errno = EINVAL;
	399	}
	400	#else
	401	RETVAL = (SysRet) not_here("IO::Handle::sync");
	402	#endif
	403	OUTPUT:
	404	RETVAL
	405
	406
63a347c7	407	MODULE = IO PACKAGE = IO::Socket
	408
	409	SysRet
	410	sockatmark (sock)
	411	InputStream sock
	412	PROTOTYPE: $
	413	PREINIT:
06c912bc	414	int fd;
63a347c7	415	CODE:
	416	{
	417	fd = PerlIO_fileno(sock);
	418	#ifdef HAS_SOCKATMARK
06c912bc	419	RETVAL = sockatmark(fd);
63a347c7	420	#else
06c912bc	421	{
06c912bc	422	int flag = 0;
6d087280	423	# ifdef SIOCATMARK
6e22d046	424	# if defined(NETWARE) \|\| defined(WIN32)
2986a63f	425	if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
f754b6e0	426	# else
	427	if (ioctl(fd, SIOCATMARK, &flag) != 0)
	428	# endif
06c912bc	429	XSRETURN_UNDEF;
63a347c7	430	# else
06c912bc	431	not_here("IO::Socket::atmark");
	432	# endif
	433	RETVAL = flag;
	434	}
63a347c7	435	#endif
	436	}
	437	OUTPUT:
	438	RETVAL
	439
cf7fe8a2	440	BOOT:
	441	{
	442	HV *stash;
	443	/*
	444	* constant subs for IO::Poll
	445	*/
	446	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	447	#ifdef POLLIN
	448	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	449	#endif
	450	#ifdef POLLPRI
	451	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	452	#endif
	453	#ifdef POLLOUT
	454	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	455	#endif
	456	#ifdef POLLRDNORM
	457	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	458	#endif
	459	#ifdef POLLWRNORM
	460	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	461	#endif
	462	#ifdef POLLRDBAND
	463	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	464	#endif
	465	#ifdef POLLWRBAND
	466	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	467	#endif
	468	#ifdef POLLNORM
	469	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	470	#endif
	471	#ifdef POLLERR
	472	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	473	#endif
	474	#ifdef POLLHUP
	475	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	476	#endif
	477	#ifdef POLLNVAL
	478	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	479	#endif
	480	/*
	481	* constant subs for IO::Handle
	482	*/
	483	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	484	#ifdef _IOFBF
	485	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
	486	#endif
	487	#ifdef _IOLBF
	488	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
	489	#endif
	490	#ifdef _IONBF
	491	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
	492	#endif
	493	#ifdef SEEK_SET
	494	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
	495	#endif
	496	#ifdef SEEK_CUR
	497	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
	498	#endif
	499	#ifdef SEEK_END
	500	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
	501	#endif
cf7fe8a2	502	}
63a347c7	503