[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_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

#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. */

	/* E.g. In 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) {
	    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) {
#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

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:
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
	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
}
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
c5be433b	7	#define PERL_NO_GET_CONTEXT
8add82fc	8	#include "EXTERN.h"
760ac839	9	#define PERLIO_NOT_STDIO 1
8add82fc	10	#include "perl.h"
8add82fc	11	#include "XSUB.h"
cf7fe8a2	12	#include "poll.h"
8add82fc	13	#ifdef I_UNISTD
	14	# include <unistd.h>
	15	#endif
cf7fe8a2	16	#if defined(I_FCNTL) \|\| defined(HAS_FCNTL)
760ac839	17	# include <fcntl.h>
760ac839	18	#endif
8add82fc	19
2a0cf753	20	#ifdef PerlIO
8add82fc	21	typedef int SysRet;
760ac839	22	typedef PerlIO * InputStream;
760ac839	23	typedef PerlIO * OutputStream;
2a0cf753	24	#else
	25	#define PERLIO_IS_STDIO 1
	26	typedef int SysRet;
	27	typedef FILE * InputStream;
	28	typedef FILE * OutputStream;
	29	#endif
8add82fc	30
cceca5ed	31	#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
cf7fe8a2	32
	33	#ifndef gv_stashpvn
	34	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	35	#endif
	36
8add82fc	37	static int
a1ea39dc	38	not_here(char *s)
8add82fc	39	{
	40	croak("%s not implemented on this architecture", s);
	41	return -1;
	42	}
	43
cf7fe8a2	44
	45	#ifndef PerlIO
	46	#define PerlIO_fileno(f) fileno(f)
8add82fc	47	#endif
cf7fe8a2	48
cf7fe8a2	49	static int
a1ea39dc	50	io_blocking(InputStream f, int block)
cf7fe8a2	51	{
	52	int RETVAL;
	53	if(!f) {
	54	errno = EBADF;
	55	return -1;
	56	}
	57	#if defined(HAS_FCNTL)
	58	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	59	if (RETVAL >= 0) {
	60	int mode = RETVAL;
	61	#ifdef O_NONBLOCK
0e06870b	62	/* POSIX style */
cf7fe8a2	63	#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
0e06870b	64	/* Ooops has O_NDELAY too - make sure we don't
6fd254a4	65	* get SysV behaviour by mistake. */
cf7fe8a2	66
6fd254a4	67	/* E.g. In UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
	68	* after a successful F_SETFL of an O_NONBLOCK. */
	69	RETVAL = RETVAL & (O_NONBLOCK \| O_NDELAY) ? 0 : 1;
	70
	71	if (block >= 0) {
	72	if ((mode & O_NDELAY) \|\| ((block == 0) && !(mode & O_NONBLOCK))) {
	73	int ret;
	74	mode = (mode & ~O_NDELAY) \| O_NONBLOCK;
	75	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	76	if(ret < 0)
	77	RETVAL = ret;
	78	}
	79	else
	80	if ((mode & O_NDELAY) \|\| ((block > 0) && (mode & O_NONBLOCK))) {
	81	int ret;
	82	mode &= ~(O_NONBLOCK \| O_NDELAY);
	83	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	84	if(ret < 0)
	85	RETVAL = ret;
	86	}
cf7fe8a2	87	}
8add82fc	88	#else
0e06870b	89	/* Standard POSIX */
cf7fe8a2	90	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	91
	92	if ((block == 0) && !(mode & O_NONBLOCK)) {
	93	int ret;
	94	mode \|= O_NONBLOCK;
	95	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	96	if(ret < 0)
	97	RETVAL = ret;
	98	}
	99	else if ((block > 0) && (mode & O_NONBLOCK)) {
	100	int ret;
	101	mode &= ~O_NONBLOCK;
	102	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	103	if(ret < 0)
	104	RETVAL = ret;
	105	}
0e06870b	106	#endif
8add82fc	107	#else
cf7fe8a2	108	/* Not POSIX - better have O_NDELAY or we can't cope.
cf7fe8a2	109	* for BSD-ish machines this is an acceptable alternative
0e06870b	110	* for SysV we can't tell "would block" from EOF but that is
cf7fe8a2	111	* the way SysV is...
	112	*/
	113	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	114
	115	if ((block == 0) && !(mode & O_NDELAY)) {
	116	int ret;
	117	mode \|= O_NDELAY;
	118	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	119	if(ret < 0)
	120	RETVAL = ret;
	121	}
	122	else if ((block > 0) && (mode & O_NDELAY)) {
	123	int ret;
	124	mode &= ~O_NDELAY;
	125	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	126	if(ret < 0)
	127	RETVAL = ret;
	128	}
8add82fc	129	#endif
cf7fe8a2	130	}
cf7fe8a2	131	return RETVAL;
8add82fc	132	#else
cf7fe8a2	133	return -1;
8add82fc	134	#endif
8add82fc	135	}
8add82fc	136
8add82fc	137	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
	138
	139	SV *
	140	fgetpos(handle)
	141	InputStream handle
	142	CODE:
8add82fc	143	if (handle) {
2a0cf753	144	#ifdef PerlIO
0e06870b	145	ST(0) = sv_2mortal(newSV(0));
	146	if (PerlIO_getpos(handle, ST(0)) != 0) {
	147	ST(0) = &PL_sv_undef;
	148	}
2a0cf753	149	#else
0e06870b	150	if (fgetpos(handle, &pos)) {
	151	ST(0) = &PL_sv_undef;
	152	} else {
	153	ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	154	}
2a0cf753	155	#endif
8add82fc	156	}
8add82fc	157	else {
a1ea39dc	158	ST(0) = &PL_sv_undef;
8add82fc	159	errno = EINVAL;
8add82fc	160	}
8add82fc	161
	162	SysRet
	163	fsetpos(handle, pos)
	164	InputStream handle
	165	SV * pos
	166	CODE:
0e06870b	167	if (handle) {
2a0cf753	168	#ifdef PerlIO
0e06870b	169	RETVAL = PerlIO_setpos(handle, pos);
2a0cf753	170	#else
0e06870b	171	char *p;
	172	STRLEN len;
	173	if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	174	RETVAL = fsetpos(handle, (Fpos_t*)p);
	175	}
	176	else {
	177	RETVAL = -1;
	178	errno = EINVAL;
	179	}
2a0cf753	180	#endif
0e06870b	181	}
8add82fc	182	else {
	183	RETVAL = -1;
	184	errno = EINVAL;
	185	}
8add82fc	186	OUTPUT:
	187	RETVAL
	188
	189	MODULE = IO PACKAGE = IO::File PREFIX = f
	190
a375a877	191	SV *
8add82fc	192	new_tmpfile(packname = "IO::File")
8add82fc	193	char * packname
a375a877	194	PREINIT:
	195	OutputStream fp;
	196	GV *gv;
8add82fc	197	CODE:
2a0cf753	198	#ifdef PerlIO
a375a877	199	fp = PerlIO_tmpfile();
2a0cf753	200	#else
a375a877	201	fp = tmpfile();
2a0cf753	202	#endif
a375a877	203	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	204	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	205	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	206	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	207	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	208	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	209	}
a375a877	210	else {
a1ea39dc	211	ST(0) = &PL_sv_undef;
a375a877	212	SvREFCNT_dec(gv);
a375a877	213	}
8add82fc	214
cf7fe8a2	215	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2	216
0e06870b	217	void
cf7fe8a2	218	_poll(timeout,...)
	219	int timeout;
	220	PPCODE:
	221	{
	222	#ifdef HAS_POLL
	223	int nfd = (items - 1) / 2;
	224	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	225	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	226	int i,j,ret;
	227	for(i=1, j=0 ; j < nfd ; j++) {
	228	fds[j].fd = SvIV(ST(i));
	229	i++;
	230	fds[j].events = SvIV(ST(i));
	231	i++;
	232	fds[j].revents = 0;
	233	}
	234	if((ret = poll(fds,nfd,timeout)) >= 0) {
	235	for(i=1, j=0 ; j < nfd ; j++) {
	236	sv_setiv(ST(i), fds[j].fd); i++;
	237	sv_setiv(ST(i), fds[j].revents); i++;
	238	}
	239	}
	240	SvREFCNT_dec(tmpsv);
	241	XSRETURN_IV(ret);
	242	#else
	243	not_here("IO::Poll::poll");
	244	#endif
	245	}
	246
	247	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	248
	249	void
	250	io_blocking(handle,blk=-1)
	251	InputStream handle
	252	int blk
	253	PROTOTYPE: $;$
	254	CODE:
	255	{
	256	int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
	257	if(ret >= 0)
	258	XSRETURN_IV(ret);
	259	else
	260	XSRETURN_UNDEF;
	261	}
	262
8add82fc	263	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	264
8add82fc	265
	266	int
	267	ungetc(handle, c)
	268	InputStream handle
	269	int c
	270	CODE:
	271	if (handle)
2a0cf753	272	#ifdef PerlIO
760ac839	273	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	274	#else
	275	RETVAL = ungetc(c, handle);
	276	#endif
8add82fc	277	else {
	278	RETVAL = -1;
	279	errno = EINVAL;
	280	}
	281	OUTPUT:
	282	RETVAL
	283
	284	int
	285	ferror(handle)
	286	InputStream handle
	287	CODE:
	288	if (handle)
2a0cf753	289	#ifdef PerlIO
760ac839	290	RETVAL = PerlIO_error(handle);
2a0cf753	291	#else
	292	RETVAL = ferror(handle);
	293	#endif
	294	else {
	295	RETVAL = -1;
	296	errno = EINVAL;
	297	}
	298	OUTPUT:
	299	RETVAL
	300
	301	int
	302	clearerr(handle)
	303	InputStream handle
	304	CODE:
	305	if (handle) {
	306	#ifdef PerlIO
	307	PerlIO_clearerr(handle);
	308	#else
	309	clearerr(handle);
	310	#endif
	311	RETVAL = 0;
	312	}
8add82fc	313	else {
8add82fc	314	RETVAL = -1;
59629a13	315	errno = EINVAL;
	316	}
	317	OUTPUT:
	318	RETVAL
	319
	320	int
	321	untaint(handle)
	322	SV * handle
	323	CODE:
7a4c00b4	324	#ifdef IOf_UNTAINT
59629a13	325	IO * io;
	326	io = sv_2io(handle);
	327	if (io) {
	328	IoFLAGS(io) \|= IOf_UNTAINT;
	329	RETVAL = 0;
	330	}
	331	else {
7a4c00b4	332	#endif
59629a13	333	RETVAL = -1;
8add82fc	334	errno = EINVAL;
7a4c00b4	335	#ifdef IOf_UNTAINT
8add82fc	336	}
7a4c00b4	337	#endif
8add82fc	338	OUTPUT:
	339	RETVAL
	340
	341	SysRet
	342	fflush(handle)
	343	OutputStream handle
	344	CODE:
	345	if (handle)
2a0cf753	346	#ifdef PerlIO
760ac839	347	RETVAL = PerlIO_flush(handle);
2a0cf753	348	#else
	349	RETVAL = Fflush(handle);
	350	#endif
8add82fc	351	else {
	352	RETVAL = -1;
	353	errno = EINVAL;
	354	}
	355	OUTPUT:
	356	RETVAL
	357
	358	void
	359	setbuf(handle, buf)
	360	OutputStream handle
	361	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
	362	CODE:
	363	if (handle)
760ac839	364	#ifdef PERLIO_IS_STDIO
8add82fc	365	setbuf(handle, buf);
760ac839	366	#else
	367	not_here("IO::Handle::setbuf");
	368	#endif
8add82fc	369
	370	SysRet
	371	setvbuf(handle, buf, type, size)
	372	OutputStream handle
	373	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	374	int type
	375	int size
	376	CODE:
1eeb0f31	377	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
d924de76	378	if (!handle) /* Try input stream. */
d924de76	379	handle = IoIFP(sv_2io(ST(0)));
8add82fc	380	if (handle)
	381	RETVAL = setvbuf(handle, buf, type, size);
	382	else {
	383	RETVAL = -1;
	384	errno = EINVAL;
	385	}
	386	#else
61839fa9	387	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	388	#endif
8add82fc	389	OUTPUT:
	390	RETVAL
	391
	392
cf7fe8a2	393	SysRet
	394	fsync(handle)
	395	OutputStream handle
	396	CODE:
	397	#ifdef HAS_FSYNC
	398	if(handle)
	399	RETVAL = fsync(PerlIO_fileno(handle));
	400	else {
	401	RETVAL = -1;
	402	errno = EINVAL;
	403	}
	404	#else
	405	RETVAL = (SysRet) not_here("IO::Handle::sync");
	406	#endif
	407	OUTPUT:
	408	RETVAL
	409
	410
	411	BOOT:
	412	{
	413	HV *stash;
	414	/*
	415	* constant subs for IO::Poll
	416	*/
	417	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	418	#ifdef POLLIN
	419	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	420	#endif
	421	#ifdef POLLPRI
	422	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	423	#endif
	424	#ifdef POLLOUT
	425	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	426	#endif
	427	#ifdef POLLRDNORM
	428	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	429	#endif
	430	#ifdef POLLWRNORM
	431	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	432	#endif
	433	#ifdef POLLRDBAND
	434	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	435	#endif
	436	#ifdef POLLWRBAND
	437	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	438	#endif
	439	#ifdef POLLNORM
	440	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	441	#endif
	442	#ifdef POLLERR
	443	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	444	#endif
	445	#ifdef POLLHUP
	446	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	447	#endif
	448	#ifdef POLLNVAL
	449	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	450	#endif
	451	/*
	452	* constant subs for IO::Handle
	453	*/
	454	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	455	#ifdef _IOFBF
	456	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
457	#endif
458	#ifdef _IOLBF
459	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
460	#endif
461	#ifdef _IONBF
462	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
463	#endif
464	#ifdef SEEK_SET
465	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
466	#endif
467	#ifdef SEEK_CUR
468	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
469	#endif
470	#ifdef SEEK_END
471	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
472	#endif
cf7fe8a2	473	}