[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.
 */

#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

#ifdef PerlIO
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(InputStream f, int block)
{
    int RETVAL;
    if(!f) {
	errno = EBADF;
	return -1;
    }
#if defined(HAS_FCNTL)
    RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
    if (RETVAL >= 0) {
	int mode = RETVAL;
#ifdef O_NONBLOCK
	/* POSIX style */ 
#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
	/* Ooops has O_NDELAY too - make sure we don't 
	 * get SysV behaviour by mistake
	 */
	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;

	if ((mode & O_NDELAY) || ((block == 0) && !(mode & O_NONBLOCK))) {
	    int ret;
	    mode = (mode & ~O_NDELAY) | O_NONBLOCK;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	}
	else if ((mode & O_NDELAY) || ((block > 0) && (mode & O_NONBLOCK))) {
	    int ret;
	    mode &= ~(O_NONBLOCK | O_NDELAY);
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	}
#else
	/* Standard POSIX */ 
	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;

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

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

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

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

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

SV *
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 = 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(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, buf)
	OutputStream	handle
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
    CODE:
	if (handle)
#ifdef PERLIO_IS_STDIO
	    setbuf(handle, buf);
#else
	    not_here("IO::Handle::setbuf");
#endif

SysRet
setvbuf(handle, buf, type, size)
	OutputStream	handle
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	int		type
	int		size
    CODE:
/* Should check HAS_SETVBUF once Configure tests for that */
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
	if (!handle)			/* Try input stream. */
	    handle = IoIFP(sv_2io(ST(0)));
	if (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


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
    /*
     * constant subs for IO
     */
    stash = gv_stashpvn("IO", 2, TRUE);
#ifdef EINPROGRESS
        newCONSTSUB(stash,"EINPROGRESS", newSViv(EINPROGRESS));
#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
8add82fc	7	#include "EXTERN.h"
760ac839	8	#define PERLIO_NOT_STDIO 1
8add82fc	9	#include "perl.h"
8add82fc	10	#include "XSUB.h"
cf7fe8a2	11	#include "poll.h"
8add82fc	12	#ifdef I_UNISTD
	13	# include <unistd.h>
	14	#endif
cf7fe8a2	15	#if defined(I_FCNTL) \|\| defined(HAS_FCNTL)
760ac839	16	# include <fcntl.h>
760ac839	17	#endif
8add82fc	18
2a0cf753	19	#ifdef PerlIO
8add82fc	20	typedef int SysRet;
760ac839	21	typedef PerlIO * InputStream;
760ac839	22	typedef PerlIO * OutputStream;
2a0cf753	23	#else
	24	#define PERLIO_IS_STDIO 1
	25	typedef int SysRet;
	26	typedef FILE * InputStream;
	27	typedef FILE * OutputStream;
	28	#endif
8add82fc	29
cceca5ed	30	#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
cf7fe8a2	31
	32	#ifndef gv_stashpvn
	33	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	34	#endif
	35
8add82fc	36	static int
a1ea39dc	37	not_here(char *s)
8add82fc	38	{
	39	croak("%s not implemented on this architecture", s);
	40	return -1;
	41	}
	42
cf7fe8a2	43
	44	#ifndef PerlIO
	45	#define PerlIO_fileno(f) fileno(f)
8add82fc	46	#endif
cf7fe8a2	47
cf7fe8a2	48	static int
a1ea39dc	49	io_blocking(InputStream f, int block)
cf7fe8a2	50	{
	51	int RETVAL;
	52	if(!f) {
	53	errno = EBADF;
	54	return -1;
	55	}
	56	#if defined(HAS_FCNTL)
	57	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	58	if (RETVAL >= 0) {
	59	int mode = RETVAL;
	60	#ifdef O_NONBLOCK
	61	/* POSIX style */
	62	#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
	63	/* Ooops has O_NDELAY too - make sure we don't
	64	* get SysV behaviour by mistake
	65	*/
	66	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	67
	68	if ((mode & O_NDELAY) \|\| ((block == 0) && !(mode & O_NONBLOCK))) {
	69	int ret;
	70	mode = (mode & ~O_NDELAY) \| O_NONBLOCK;
	71	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	72	if(ret < 0)
	73	RETVAL = ret;
	74	}
	75	else if ((mode & O_NDELAY) \|\| ((block > 0) && (mode & O_NONBLOCK))) {
	76	int ret;
	77	mode &= ~(O_NONBLOCK \| O_NDELAY);
	78	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	79	if(ret < 0)
	80	RETVAL = ret;
	81	}
8add82fc	82	#else
cf7fe8a2	83	/* Standard POSIX */
	84	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	85
	86	if ((block == 0) && !(mode & O_NONBLOCK)) {
	87	int ret;
	88	mode \|= O_NONBLOCK;
	89	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	90	if(ret < 0)
	91	RETVAL = ret;
	92	}
	93	else if ((block > 0) && (mode & O_NONBLOCK)) {
	94	int ret;
	95	mode &= ~O_NONBLOCK;
	96	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	97	if(ret < 0)
	98	RETVAL = ret;
	99	}
	100	#endif
8add82fc	101	#else
cf7fe8a2	102	/* Not POSIX - better have O_NDELAY or we can't cope.
	103	* for BSD-ish machines this is an acceptable alternative
	104	* for SysV we can't tell "would block" from EOF but that is
	105	* the way SysV is...
	106	*/
	107	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	108
	109	if ((block == 0) && !(mode & O_NDELAY)) {
	110	int ret;
	111	mode \|= O_NDELAY;
	112	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	113	if(ret < 0)
	114	RETVAL = ret;
	115	}
	116	else if ((block > 0) && (mode & O_NDELAY)) {
	117	int ret;
	118	mode &= ~O_NDELAY;
	119	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	120	if(ret < 0)
	121	RETVAL = ret;
	122	}
8add82fc	123	#endif
cf7fe8a2	124	}
cf7fe8a2	125	return RETVAL;
8add82fc	126	#else
cf7fe8a2	127	return -1;
8add82fc	128	#endif
8add82fc	129	}
8add82fc	130
8add82fc	131	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
	132
	133	SV *
	134	fgetpos(handle)
	135	InputStream handle
	136	CODE:
8add82fc	137	if (handle) {
8add82fc	138	Fpos_t pos;
2a0cf753	139	#ifdef PerlIO
760ac839	140	PerlIO_getpos(handle, &pos);
2a0cf753	141	#else
	142	fgetpos(handle, &pos);
	143	#endif
8add82fc	144	ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	145	}
	146	else {
a1ea39dc	147	ST(0) = &PL_sv_undef;
8add82fc	148	errno = EINVAL;
8add82fc	149	}
8add82fc	150
	151	SysRet
	152	fsetpos(handle, pos)
	153	InputStream handle
	154	SV * pos
	155	CODE:
a1ea39dc	156	char *p;
	157	STRLEN len;
	158	if (handle && (p = SvPV(pos,len)) && len == sizeof(Fpos_t))
2a0cf753	159	#ifdef PerlIO
a1ea39dc	160	RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
2a0cf753	161	#else
a1ea39dc	162	RETVAL = fsetpos(handle, (Fpos_t*)p);
2a0cf753	163	#endif
8add82fc	164	else {
	165	RETVAL = -1;
	166	errno = EINVAL;
	167	}
8add82fc	168	OUTPUT:
	169	RETVAL
	170
	171	MODULE = IO PACKAGE = IO::File PREFIX = f
	172
a375a877	173	SV *
8add82fc	174	new_tmpfile(packname = "IO::File")
8add82fc	175	char * packname
a375a877	176	PREINIT:
	177	OutputStream fp;
	178	GV *gv;
8add82fc	179	CODE:
2a0cf753	180	#ifdef PerlIO
a375a877	181	fp = PerlIO_tmpfile();
2a0cf753	182	#else
a375a877	183	fp = tmpfile();
2a0cf753	184	#endif
a375a877	185	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	186	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	187	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	188	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	189	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	190	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	191	}
a375a877	192	else {
a1ea39dc	193	ST(0) = &PL_sv_undef;
a375a877	194	SvREFCNT_dec(gv);
a375a877	195	}
8add82fc	196
cf7fe8a2	197	MODULE = IO PACKAGE = IO::Poll
	198
	199	void
	200	_poll(timeout,...)
	201	int timeout;
	202	PPCODE:
	203	{
	204	#ifdef HAS_POLL
	205	int nfd = (items - 1) / 2;
	206	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	207	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	208	int i,j,ret;
	209	for(i=1, j=0 ; j < nfd ; j++) {
	210	fds[j].fd = SvIV(ST(i));
	211	i++;
	212	fds[j].events = SvIV(ST(i));
	213	i++;
	214	fds[j].revents = 0;
	215	}
	216	if((ret = poll(fds,nfd,timeout)) >= 0) {
	217	for(i=1, j=0 ; j < nfd ; j++) {
	218	sv_setiv(ST(i), fds[j].fd); i++;
	219	sv_setiv(ST(i), fds[j].revents); i++;
	220	}
	221	}
	222	SvREFCNT_dec(tmpsv);
	223	XSRETURN_IV(ret);
	224	#else
	225	not_here("IO::Poll::poll");
	226	#endif
	227	}
	228
	229	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	230
	231	void
	232	io_blocking(handle,blk=-1)
	233	InputStream handle
	234	int blk
	235	PROTOTYPE: $;$
	236	CODE:
	237	{
	238	int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
	239	if(ret >= 0)
	240	XSRETURN_IV(ret);
	241	else
	242	XSRETURN_UNDEF;
	243	}
	244
8add82fc	245	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	246
8add82fc	247
	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
	341	setbuf(handle, buf)
	342	OutputStream handle
	343	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
	344	CODE:
	345	if (handle)
760ac839	346	#ifdef PERLIO_IS_STDIO
8add82fc	347	setbuf(handle, buf);
760ac839	348	#else
	349	not_here("IO::Handle::setbuf");
	350	#endif
8add82fc	351
	352	SysRet
	353	setvbuf(handle, buf, type, size)
	354	OutputStream handle
	355	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	356	int type
	357	int size
	358	CODE:
61839fa9	359	/* Should check HAS_SETVBUF once Configure tests for that */
61839fa9	360	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
d924de76	361	if (!handle) /* Try input stream. */
d924de76	362	handle = IoIFP(sv_2io(ST(0)));
8add82fc	363	if (handle)
	364	RETVAL = setvbuf(handle, buf, type, size);
	365	else {
	366	RETVAL = -1;
	367	errno = EINVAL;
	368	}
	369	#else
61839fa9	370	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	371	#endif
8add82fc	372	OUTPUT:
	373	RETVAL
	374
	375
cf7fe8a2	376	SysRet
	377	fsync(handle)
	378	OutputStream handle
	379	CODE:
	380	#ifdef HAS_FSYNC
	381	if(handle)
	382	RETVAL = fsync(PerlIO_fileno(handle));
	383	else {
	384	RETVAL = -1;
	385	errno = EINVAL;
	386	}
	387	#else
	388	RETVAL = (SysRet) not_here("IO::Handle::sync");
	389	#endif
	390	OUTPUT:
	391	RETVAL
	392
	393
	394	BOOT:
	395	{
	396	HV *stash;
	397	/*
	398	* constant subs for IO::Poll
	399	*/
	400	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	401	#ifdef POLLIN
	402	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	403	#endif
	404	#ifdef POLLPRI
	405	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	406	#endif
	407	#ifdef POLLOUT
	408	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	409	#endif
	410	#ifdef POLLRDNORM
	411	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	412	#endif
	413	#ifdef POLLWRNORM
	414	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	415	#endif
	416	#ifdef POLLRDBAND
	417	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	418	#endif
	419	#ifdef POLLWRBAND
	420	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	421	#endif
	422	#ifdef POLLNORM
	423	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	424	#endif
	425	#ifdef POLLERR
	426	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	427	#endif
	428	#ifdef POLLHUP
	429	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	430	#endif
	431	#ifdef POLLNVAL
	432	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	433	#endif
	434	/*
	435	* constant subs for IO::Handle
	436	*/
	437	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	438	#ifdef _IOFBF
	439	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
440	#endif
441	#ifdef _IOLBF
442	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
443	#endif
444	#ifdef _IONBF
445	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
446	#endif
447	#ifdef SEEK_SET
448	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
449	#endif
450	#ifdef SEEK_CUR
451	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
452	#endif
453	#ifdef SEEK_END
454	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
455	#endif
456	/*
457	* constant subs for IO
458	*/
459	stash = gv_stashpvn("IO", 2, TRUE);
460	#ifdef EINPROGRESS
461	newCONSTSUB(stash,"EINPROGRESS", newSViv(EINPROGRESS));
462	#endif
463	}