/*
- * perlio.c Copyright (c) 1996-2001, Nick Ing-Simmons You may distribute
+ * perlio.c Copyright (c) 1996-2002, Nick Ing-Simmons You may distribute
* under the terms of either the GNU General Public License or the
* Artistic License, as specified in the README file.
*/
/*
+ * Hour after hour for nearly three weary days he had jogged up and down,
+ * over passes, and through long dales, and across many streams.
+ */
+
+/*
* If we have ActivePerl-like PERL_IMPLICIT_SYS then we need a dTHX to get
* at the dispatch tables, even when we do not need it for other reasons.
* Invent a dSYS macro to abstract this out
}
#ifndef O_ACCMODE
-#define O_ACCMODE 3 /* Assume traditional implementation */
+#define O_ACCMODE 3 /* Assume traditional implementation */
#endif
int
int
PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names)
{
- if (!names || !*names || strEQ(names, ":crlf") || strEQ(names, ":raw")) {
+ if (!names || !*names
+ || strEQ(names, ":crlf")
+ || strEQ(names, ":raw")
+ || strEQ(names, ":bytes")
+ ) {
return 0;
}
Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl", names);
PerlIO *
PerlIO_fdupopen(pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
{
-#ifndef PERL_MICRO
+#ifdef PERL_MICRO
+ return NULL;
+#else
+#ifdef PERL_IMPLICIT_SYS
+ return PerlSIO_fdupopen(f);
+#else
+#ifdef WIN32
+ return win32_fdupopen(f);
+#else
if (f) {
int fd = PerlLIO_dup(PerlIO_fileno(f));
if (fd >= 0) {
char mode[8];
int omode = fcntl(fd, F_GETFL);
+#ifdef DJGPP
+ omode = djgpp_get_stream_mode(f);
+#endif
PerlIO_intmode2str(omode,mode,NULL);
/* the r+ is a hack */
return PerlIO_fdopen(fd, mode);
return NULL;
}
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
}
#endif
return NULL;
+#endif
+#endif
}
return tmpfile();
}
-#else /* PERLIO_IS_STDIO */
+#else /* PERLIO_IS_STDIO */
#ifdef USE_SFIO
sfset(sfstdout, SF_SHARE, 0);
}
+/* This is not the reverse of PerlIO_exportFILE(), PerlIO_releaseFILE() is. */
PerlIO *
-PerlIO_importFILE(FILE *stdio, int fl)
+PerlIO_importFILE(FILE *stdio, const char *mode)
{
int fd = fileno(stdio);
- PerlIO *r = PerlIO_fdopen(fd, "r+");
- return r;
+ if (!mode || !*mode) {
+ mode = "r+";
+ }
+ return PerlIO_fdopen(fd, mode);
}
FILE *
}
-#else /* USE_SFIO */
+#else /* USE_SFIO */
/*======================================================================================*/
/*
* Implement all the PerlIO interface ourselves.
if (!s)
s = "(none)";
sprintf(buffer, "%s:%" IVdf " ", s, (IV) CopLINE(PL_curcop));
- len = strlen(buffer);
+ len = strlen(buffer);
vsprintf(buffer+len, fmt, ap);
PerlLIO_write(dbg, buffer, strlen(buffer));
#else
PerlIO_funcs *tab = PerlIOBase(f)->tab;
PerlIO *new;
PerlIO_debug("fdupopen f=%p param=%p\n",(void*)f,(void*)param);
- new = (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX),f,param, flags);
+ new = (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX),f,param, flags);
return new;
}
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return NULL;
}
}
f++;
}
}
- PerlIO_list_free(aTHX_ PL_known_layers);
- PL_known_layers = NULL;
- PerlIO_list_free(aTHX_ PL_def_layerlist);
- PL_def_layerlist = NULL;
}
void
if ((*l->tab->Popped) (aTHX_ f) != 0)
return;
}
- *f = l->next;;
+ *f = l->next;
Safefree(l);
}
}
+/* Return as an array the stack of layers on a filehandle. Note that
+ * the stack is returned top-first in the array, and there are three
+ * times as many array elements as there are layers in the stack: the
+ * first element of a layer triplet is the name, the second one is the
+ * arguments, and the third one is the flags. */
+
+AV *
+PerlIO_get_layers(pTHX_ PerlIO *f)
+{
+ AV *av = newAV();
+
+ if (PerlIOValid(f)) {
+ PerlIOl *l = PerlIOBase(f);
+
+ while (l) {
+ SV *name = l->tab && l->tab->name ?
+ newSVpv(l->tab->name, 0) : &PL_sv_undef;
+ SV *arg = l->tab && l->tab->Getarg ?
+ (*l->tab->Getarg)(aTHX_ &l, 0, 0) : &PL_sv_undef;
+ av_push(av, name);
+ av_push(av, arg);
+ av_push(av, newSViv((IV)l->flags));
+ l = l->next;
+ }
+ }
+
+ return av;
+}
+
/*--------------------------------------------------------------------------------------*/
/*
* XS Interface for perl code
}
if (load && PL_subname && PL_def_layerlist
&& PL_def_layerlist->cur >= 2) {
- SV *pkgsv = newSVpvn("PerlIO", 6);
- SV *layer = newSVpvn(name, len);
- ENTER;
- /*
- * The two SVs are magically freed by load_module
- */
- Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv);
- LEAVE;
- return PerlIO_find_layer(aTHX_ name, len, 0);
+ if (PL_in_load_module) {
+ Perl_croak(aTHX_ "Recursive call to Perl_load_module in PerlIO_find_layer");
+ return NULL;
+ } else {
+ SV *pkgsv = newSVpvn("PerlIO", 6);
+ SV *layer = newSVpvn(name, len);
+ CV *cv = get_cv("PerlIO::Layer::NoWarnings", FALSE);
+ ENTER;
+ SAVEINT(PL_in_load_module);
+ if (cv) {
+ SAVESPTR(PL_warnhook);
+ PL_warnhook = (SV *) cv;
+ }
+ PL_in_load_module++;
+ /*
+ * The two SVs are magically freed by load_module
+ */
+ Perl_load_module(aTHX_ 0, pkgsv, Nullsv, layer, Nullsv);
+ PL_in_load_module--;
+ LEAVE;
+ return PerlIO_find_layer(aTHX_ name, len, 0);
+ }
}
PerlIO_debug("Cannot find %.*s\n", (int) len, name);
return NULL;
MGVTBL perlio_vtab = {
perlio_mg_get,
perlio_mg_set,
- NULL, /* len */
+ NULL, /* len */
perlio_mg_clear,
perlio_mg_free
};
XSRETURN(count);
}
-#endif /* USE_ATTIBUTES_FOR_PERLIO */
+#endif /* USE_ATTIBUTES_FOR_PERLIO */
SV *
PerlIO_tab_sv(pTHX_ PerlIO_funcs *tab)
return sv;
}
+XS(XS_PerlIO__Layer__NoWarnings)
+{
+ /* This is used as a %SIG{__WARN__} handler to supress warnings
+ during loading of layers.
+ */
+ dXSARGS;
+ if (items)
+ PerlIO_debug("warning:%s\n",SvPV_nolen(ST(0)));
+ XSRETURN(0);
+}
+
XS(XS_PerlIO__Layer__find)
{
dXSARGS;
* seen as an invalid separator character.
*/
char q = ((*s == '\'') ? '"' : '\'');
- Perl_warn(aTHX_
+ if (ckWARN(WARN_LAYER))
+ Perl_warner(aTHX_ packWARN(WARN_LAYER),
"perlio: invalid separator character %c%c%c in layer specification list %s",
q, *s, q, s);
+ SETERRNO(EINVAL, LIB_INVARG);
return -1;
}
do {
*/
case '\0':
e--;
- Perl_warn(aTHX_
+ if (ckWARN(WARN_LAYER))
+ Perl_warner(aTHX_ packWARN(WARN_LAYER),
"perlio: argument list not closed for layer \"%.*s\"",
(int) (e - s), s);
return -1;
}
}
if (e > s) {
+ bool warn_layer = ckWARN(WARN_LAYER);
PerlIO_funcs *layer =
PerlIO_find_layer(aTHX_ s, llen, 1);
if (layer) {
&PL_sv_undef);
}
else {
- Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",
+ if (warn_layer)
+ Perl_warner(aTHX_ packWARN(WARN_LAYER), "perlio: unknown layer \"%.*s\"",
(int) llen, s);
return -1;
}
tab = &PerlIO_crlf;
#else
if (PerlIO_stdio.Set_ptrcnt)
- tab = &PerlIO_stdio;
+ tab = &PerlIO_stdio;
#endif
PerlIO_debug("Pushing %s\n", tab->name);
PerlIO_list_push(aTHX_ av, PerlIO_find_layer(aTHX_ tab->name, 0, 0),
return def;
}
+IV
+PerlIOPop_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
+{
+ if (PerlIOValid(f)) {
+ PerlIO_flush(f);
+ PerlIO_pop(aTHX_ f);
+ return 0;
+ }
+ return -1;
+}
+
+PerlIO_funcs PerlIO_remove = {
+ sizeof(PerlIO_funcs),
+ "pop",
+ 0,
+ PERLIO_K_DUMMY | PERLIO_K_UTF8,
+ PerlIOPop_pushed,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* flush */
+ NULL, /* fill */
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
+};
+
PerlIO_list_t *
PerlIO_default_layers(pTHX)
{
PerlIO_define_layer(aTHX_ & PerlIO_mmap);
#endif
PerlIO_define_layer(aTHX_ & PerlIO_utf8);
+ PerlIO_define_layer(aTHX_ & PerlIO_remove);
PerlIO_define_layer(aTHX_ & PerlIO_byte);
PerlIO_list_push(aTHX_ PL_def_layerlist,
PerlIO_find_layer(aTHX_ osLayer->name, 0, 0),
__FILE__);
#endif
newXS("PerlIO::Layer::find", XS_PerlIO__Layer__find, __FILE__);
+ newXS("PerlIO::Layer::NoWarnings", XS_PerlIO__Layer__NoWarnings, __FILE__);
}
PerlIO_funcs *
PerlIO *
PerlIO_push(pTHX_ PerlIO *f, PerlIO_funcs *tab, const char *mode, SV *arg)
{
- PerlIOl *l = NULL;
- Newc('L',l,tab->size,char,PerlIOl);
- if (l && f) {
- Zero(l, tab->size, char);
- l->next = *f;
- l->tab = tab;
- *f = l;
+ if (tab->fsize != sizeof(PerlIO_funcs)) {
+ mismatch:
+ Perl_croak(aTHX_ "Layer does not match this perl");
+ }
+ if (tab->size) {
+ PerlIOl *l = NULL;
+ if (tab->size < sizeof(PerlIOl)) {
+ goto mismatch;
+ }
+ /* Real layer with a data area */
+ Newc('L',l,tab->size,char,PerlIOl);
+ if (l && f) {
+ Zero(l, tab->size, char);
+ l->next = *f;
+ l->tab = tab;
+ *f = l;
+ PerlIO_debug("PerlIO_push f=%p %s %s %p\n", (void*)f, tab->name,
+ (mode) ? mode : "(Null)", (void*)arg);
+ if ((*l->tab->Pushed) (aTHX_ f, mode, arg, tab) != 0) {
+ PerlIO_pop(aTHX_ f);
+ return NULL;
+ }
+ }
+ }
+ else if (f) {
+ /* Pseudo-layer where push does its own stack adjust */
PerlIO_debug("PerlIO_push f=%p %s %s %p\n", (void*)f, tab->name,
(mode) ? mode : "(Null)", (void*)arg);
- if ((*l->tab->Pushed) (aTHX_ f, mode, arg) != 0) {
- PerlIO_pop(aTHX_ f);
+ if ((*tab->Pushed) (aTHX_ f, mode, arg, tab) != 0) {
return NULL;
}
}
}
IV
-PerlIOPop_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOBase_binmode(pTHX_ PerlIO *f)
{
- PerlIO_pop(aTHX_ f);
- if (*f) {
- PerlIO_flush(f);
- PerlIO_pop(aTHX_ f);
+ if (PerlIOValid(f)) {
+ /* Is layer suitable for raw stream ? */
+ if (PerlIOBase(f)->tab->kind & PERLIO_K_RAW) {
+ /* Yes - turn off UTF-8-ness, to undo UTF-8 locale effects */
+ PerlIOBase(f)->flags &= ~PERLIO_F_UTF8;
+ }
+ else {
+ /* Not suitable - pop it */
+ PerlIO_pop(aTHX_ f);
+ }
return 0;
- }
- return -1;
+ }
+ return -1;
}
IV
-PerlIORaw_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIORaw_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
- /*
- * Remove the dummy layer
- */
- PerlIO_pop(aTHX_ f);
- /*
- * Pop back to bottom layer
- */
+
if (PerlIOValid(f)) {
+ PerlIO *t;
+ PerlIOl *l;
PerlIO_flush(f);
- while (!(PerlIOBase(f)->tab->kind & PERLIO_K_RAW)) {
- if (*PerlIONext(f)) {
- PerlIO_pop(aTHX_ f);
+ /*
+ * Strip all layers that are not suitable for a raw stream
+ */
+ t = f;
+ while (t && (l = *t)) {
+ if (l->tab->Binmode) {
+ /* Has a handler - normal case */
+ if ((*l->tab->Binmode)(aTHX_ f) == 0) {
+ if (*t == l) {
+ /* Layer still there - move down a layer */
+ t = PerlIONext(t);
+ }
+ }
+ else {
+ return -1;
+ }
}
else {
- /*
- * Nothing bellow - push unix on top then remove it
- */
- if (PerlIO_push(aTHX_ f, PerlIO_default_btm(), mode, arg)) {
- PerlIO_pop(aTHX_ PerlIONext(f));
- }
- break;
+ /* No handler - pop it */
+ PerlIO_pop(aTHX_ t);
}
}
- PerlIO_debug(":raw f=%p :%s\n", (void*)f, PerlIOBase(f)->tab->name);
- return 0;
+ if (PerlIOValid(f)) {
+ PerlIO_debug(":raw f=%p :%s\n", (void*)f, PerlIOBase(f)->tab->name);
+ return 0;
+ }
}
return -1;
}
int
PerlIO_apply_layera(pTHX_ PerlIO *f, const char *mode,
- PerlIO_list_t *layers, IV n)
+ PerlIO_list_t *layers, IV n, IV max)
{
- IV max = layers->cur;
int code = 0;
while (n < max) {
PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n, NULL);
PerlIO_list_t *layers = PerlIO_list_alloc(aTHX);
code = PerlIO_parse_layers(aTHX_ layers, names);
if (code == 0) {
- code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0);
+ code = PerlIO_apply_layera(aTHX_ f, mode, layers, 0, layers->cur);
}
PerlIO_list_free(aTHX_ layers);
}
PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n",
(void*)f, PerlIOBase(f)->tab->name, iotype, mode,
(names) ? names : "(Null)");
- /* Can't flush if switching encodings. */
- if (!(names && memEQ(names, ":encoding(", 10))) {
- PerlIO_flush(f);
+ if (names) {
+ /* Do not flush etc. if (e.g.) switching encodings.
+ if a pushed layer knows it needs to flush lower layers
+ (for example :unix which is never going to call them)
+ it can do the flush when it is pushed.
+ */
+ return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE;
+ }
+ else {
+ /* Fake 5.6 legacy of using this call to turn ON O_TEXT */
#ifdef PERLIO_USING_CRLF
- if (!names && (mode & O_BINARY)) {
- PerlIO *top = f;
- while (*top) {
- if (PerlIOBase(top)->tab == &PerlIO_crlf) {
- PerlIOBase(top)->flags &= ~PERLIO_F_CRLF;
- break;
+ /* Legacy binmode only has meaning if O_TEXT has a value distinct from
+ O_BINARY so we can look for it in mode.
+ */
+ if (!(mode & O_BINARY)) {
+ /* Text mode */
+ /* FIXME?: Looking down the layer stack seems wrong,
+ but is a way of reaching past (say) an encoding layer
+ to flip CRLF-ness of the layer(s) below
+ */
+ while (*f) {
+ /* Perhaps we should turn on bottom-most aware layer
+ e.g. Ilya's idea that UNIX TTY could serve
+ */
+ if (PerlIOBase(f)->tab->kind & PERLIO_K_CANCRLF) {
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) {
+ /* Not in text mode - flush any pending stuff and flip it */
+ PerlIO_flush(f);
+ PerlIOBase(f)->flags |= PERLIO_F_CRLF;
+ }
+ /* Only need to turn it on in one layer so we are done */
+ return TRUE;
}
- top = PerlIONext(top);
- PerlIO_flush(top);
+ f = PerlIONext(f);
}
+ /* Not finding a CRLF aware layer presumably means we are binary
+ which is not what was requested - so we failed
+ We _could_ push :crlf layer but so could caller
+ */
+ return FALSE;
}
#endif
+ /* Legacy binmode is now _defined_ as being equivalent to pushing :raw
+ So code that used to be here is now in PerlIORaw_pushed().
+ */
+ return PerlIO_push(aTHX_ f, &PerlIO_raw, Nullch, Nullsv) ? TRUE : FALSE;
}
- return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE;
}
int
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Close) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Fileno) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
* Skip to write part
*/
const char *s = strchr(type, 0);
- if (s && (s - type) < len) {
+ if (s && (STRLEN)(s - type) < len) {
type = s + 1;
}
}
* For any scalar type load the handler which is bundled with perl
*/
if (SvTYPE(sv) < SVt_PVAV)
- return PerlIO_find_layer(aTHX_ "Scalar", 6, 1);
+ return PerlIO_find_layer(aTHX_ "scalar", 6, 1);
/*
* For other types allow if layer is known but don't try and load it
incdef = 0;
}
/*
- * Don't fail if handler cannot be found :Via(...) etc. may do
+ * Don't fail if handler cannot be found :via(...) etc. may do
* something sensible else we will just stringfy and open
* resulting string.
*/
else {
av = def;
}
- PerlIO_parse_layers(aTHX_ av, layers);
- return av;
+ if (PerlIO_parse_layers(aTHX_ av, layers) == 0) {
+ return av;
+ }
+ else {
+ PerlIO_list_free(aTHX_ av);
+ return (PerlIO_list_t *) NULL;
+ }
}
else {
if (incdef)
}
else {
layera = PerlIO_resolve_layers(aTHX_ layers, mode, narg, args);
+ if (!layera) {
+ return NULL;
+ }
}
/*
* Start at "top" of layer stack
* More layers above the one that we used to open -
* apply them now
*/
- if (PerlIO_apply_layera(aTHX_ f, mode, layera, n + 1)
- != 0) {
+ if (PerlIO_apply_layera(aTHX_ f, mode, layera, n + 1, layera->cur) != 0) {
+ /* If pushing layers fails close the file */
+ PerlIO_close(f);
f = NULL;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Read) (aTHX_ f, vbuf, count);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Unread) (aTHX_ f, vbuf, count);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Write) (aTHX_ f, vbuf, count);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Seek) (aTHX_ f, offset, whence);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Tell) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
}
else {
PerlIO_debug("Cannot flush f=%p :%s\n", (void*)f, tab->name);
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
else {
PerlIO_debug("Cannot flush f=%p\n", (void*)f);
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Fill) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0;
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Eof) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
return (*PerlIOBase(f)->tab->Error) (aTHX_ f);
else {
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
return -1;
}
}
if (PerlIOValid(f))
(*PerlIOBase(f)->tab->Clearerr) (aTHX_ f);
else
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
}
void
if (PerlIOValid(f))
(*PerlIOBase(f)->tab->Setlinebuf) (aTHX_ f);
else
- SETERRNO(EBADF, SS$_IVCHAN);
+ SETERRNO(EBADF, SS_IVCHAN);
}
int
}
}
+
/*--------------------------------------------------------------------------------------*/
/*
* utf8 and raw dummy layers
*/
IV
-PerlIOUtf8_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOUtf8_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
- if (*PerlIONext(f)) {
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
- PerlIO_pop(aTHX_ f);
+ if (PerlIOValid(f)) {
if (tab->kind & PERLIO_K_UTF8)
PerlIOBase(f)->flags |= PERLIO_F_UTF8;
else
}
PerlIO_funcs PerlIO_utf8 = {
+ sizeof(PerlIO_funcs),
"utf8",
- sizeof(PerlIOl),
- PERLIO_K_DUMMY | PERLIO_F_UTF8,
+ 0,
+ PERLIO_K_DUMMY | PERLIO_K_UTF8,
PerlIOUtf8_pushed,
NULL,
NULL,
NULL,
NULL,
NULL,
- NULL, /* flush */
- NULL, /* fill */
+ NULL, /* flush */
+ NULL, /* fill */
NULL,
NULL,
NULL,
NULL,
- NULL, /* get_base */
- NULL, /* get_bufsiz */
- NULL, /* get_ptr */
- NULL, /* get_cnt */
- NULL, /* set_ptrcnt */
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
};
PerlIO_funcs PerlIO_byte = {
+ sizeof(PerlIO_funcs),
"bytes",
- sizeof(PerlIOl),
+ 0,
PERLIO_K_DUMMY,
PerlIOUtf8_pushed,
NULL,
NULL,
NULL,
NULL,
- NULL, /* flush */
- NULL, /* fill */
+ NULL, /* flush */
+ NULL, /* fill */
NULL,
NULL,
NULL,
NULL,
- NULL, /* get_base */
- NULL, /* get_bufsiz */
- NULL, /* get_ptr */
- NULL, /* get_cnt */
- NULL, /* set_ptrcnt */
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
};
PerlIO *
}
PerlIO_funcs PerlIO_raw = {
+ sizeof(PerlIO_funcs),
"raw",
- sizeof(PerlIOl),
+ 0,
PERLIO_K_DUMMY,
PerlIORaw_pushed,
PerlIOBase_popped,
NULL,
NULL,
NULL,
- NULL, /* flush */
- NULL, /* fill */
+ NULL, /* flush */
+ NULL, /* fill */
NULL,
NULL,
NULL,
NULL,
- NULL, /* get_base */
- NULL, /* get_bufsiz */
- NULL, /* get_ptr */
- NULL, /* get_cnt */
- NULL, /* set_ptrcnt */
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
};
/*--------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------*/
}
char *
-PerlIO_modestr(PerlIO *f, char *buf)
+PerlIO_modestr(PerlIO * f, char *buf)
{
char *s = buf;
- IV flags = PerlIOBase(f)->flags;
- if (flags & PERLIO_F_APPEND) {
- *s++ = 'a';
- if (flags & PERLIO_F_CANREAD) {
- *s++ = '+';
+ if (PerlIOValid(f)) {
+ IV flags = PerlIOBase(f)->flags;
+ if (flags & PERLIO_F_APPEND) {
+ *s++ = 'a';
+ if (flags & PERLIO_F_CANREAD) {
+ *s++ = '+';
+ }
}
- }
- else if (flags & PERLIO_F_CANREAD) {
- *s++ = 'r';
- if (flags & PERLIO_F_CANWRITE)
- *s++ = '+';
- }
- else if (flags & PERLIO_F_CANWRITE) {
- *s++ = 'w';
- if (flags & PERLIO_F_CANREAD) {
- *s++ = '+';
+ else if (flags & PERLIO_F_CANREAD) {
+ *s++ = 'r';
+ if (flags & PERLIO_F_CANWRITE)
+ *s++ = '+';
+ }
+ else if (flags & PERLIO_F_CANWRITE) {
+ *s++ = 'w';
+ if (flags & PERLIO_F_CANREAD) {
+ *s++ = '+';
+ }
}
- }
#ifdef PERLIO_USING_CRLF
- if (!(flags & PERLIO_F_CRLF))
- *s++ = 'b';
+ if (!(flags & PERLIO_F_CRLF))
+ *s++ = 'b';
#endif
+ }
*s = '\0';
return buf;
}
+
IV
-PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOBase_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
PerlIOl *l = PerlIOBase(f);
#if 0
const char *omode = mode;
char temp[8];
#endif
- PerlIO_funcs *tab = PerlIOBase(f)->tab;
l->flags &= ~(PERLIO_F_CANREAD | PERLIO_F_CANWRITE |
PERLIO_F_TRUNCATE | PERLIO_F_APPEND);
if (tab->Set_ptrcnt != NULL)
l->flags |= PERLIO_F_TRUNCATE | PERLIO_F_CANWRITE;
break;
default:
- SETERRNO(EINVAL, LIB$_INVARG);
+ SETERRNO(EINVAL, LIB_INVARG);
return -1;
}
while (*mode) {
l->flags |= PERLIO_F_CRLF;
break;
default:
- SETERRNO(EINVAL, LIB$_INVARG);
+ SETERRNO(EINVAL, LIB_INVARG);
return -1;
}
}
SSize_t avail = PerlIO_get_cnt(f);
SSize_t take = 0;
if (avail > 0)
- take = (count < avail) ? count : avail;
+ take = ((SSize_t)count < avail) ? count : avail;
if (take > 0) {
STDCHAR *ptr = PerlIO_get_ptr(f);
Copy(ptr, buf, take, STDCHAR);
{
int i;
#ifdef USE_ITHREADS
- PerlIO_debug("Cleanup %p\n",aTHX);
+ PerlIO_debug("Cleanup layers for %p\n",aTHX);
+#else
+ PerlIO_debug("Cleanup layers\n");
#endif
/* Raise STDIN..STDERR refcount so we don't close them */
for (i=0; i < 3; i++)
/* Restore STDIN..STDERR refcount */
for (i=0; i < 3; i++)
PerlIOUnix_refcnt_dec(i);
+
+ if (PL_known_layers) {
+ PerlIO_list_free(aTHX_ PL_known_layers);
+ PL_known_layers = NULL;
+ }
+ if(PL_def_layerlist) {
+ PerlIO_list_free(aTHX_ PL_def_layerlist);
+ PL_def_layerlist = NULL;
+ }
}
*/
typedef struct {
- struct _PerlIO base; /* The generic part */
- int fd; /* UNIX like file descriptor */
- int oflags; /* open/fcntl flags */
+ struct _PerlIO base; /* The generic part */
+ int fd; /* UNIX like file descriptor */
+ int oflags; /* open/fcntl flags */
} PerlIOUnix;
int
*/
oflags |= O_BINARY;
if (*mode || oflags == -1) {
- SETERRNO(EINVAL, LIB$_INVARG);
+ SETERRNO(EINVAL, LIB_INVARG);
oflags = -1;
}
return oflags;
}
IV
-PerlIOUnix_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOUnix_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
- IV code = PerlIOBase_pushed(aTHX_ f, mode, arg);
+ IV code = PerlIOBase_pushed(aTHX_ f, mode, arg, tab);
PerlIOUnix *s = PerlIOSelf(f, PerlIOUnix);
if (*PerlIONext(f)) {
+ /* We never call down so do any pending stuff now */
+ PerlIO_flush(PerlIONext(f));
s->fd = PerlIO_fileno(PerlIONext(f));
/*
* XXX could (or should) we retrieve the oflags from the open file
IV n, const char *mode, int fd, int imode,
int perm, PerlIO *f, int narg, SV **args)
{
- if (f) {
+ if (PerlIOValid(f)) {
if (PerlIOBase(f)->flags & PERLIO_F_OPEN)
(*PerlIOBase(f)->tab->Close)(aTHX_ f);
}
mode++;
if (!f) {
f = PerlIO_allocate(aTHX);
- s = PerlIOSelf(PerlIO_push(aTHX_ f, self, mode, PerlIOArg),
- PerlIOUnix);
}
- else
- s = PerlIOSelf(f, PerlIOUnix);
+ if (!PerlIOValid(f)) {
+ if (!(f = PerlIO_push(aTHX_ f, self, mode, PerlIOArg))) {
+ return NULL;
+ }
+ }
+ s = PerlIOSelf(f, PerlIOUnix);
s->fd = fd;
s->oflags = imode;
PerlIOBase(f)->flags |= PERLIO_F_OPEN;
- PerlIOUnix_refcnt_inc(fd);
+ PerlIOUnix_refcnt_inc(fd);
return f;
}
else {
PerlIOUnix_read(pTHX_ PerlIO *f, void *vbuf, Size_t count)
{
int fd = PerlIOSelf(f, PerlIOUnix)->fd;
- if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD))
+ if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD) ||
+ PerlIOBase(f)->flags & (PERLIO_F_EOF|PERLIO_F_ERROR)) {
return 0;
+ }
while (1) {
SSize_t len = PerlLIO_read(fd, vbuf, count);
if (len >= 0 || errno != EINTR) {
if (PerlIOUnix_refcnt_dec(fd) > 0) {
PerlIOBase(f)->flags &= ~PERLIO_F_OPEN;
return 0;
- }
+ }
}
else {
- SETERRNO(EBADF,SS$_IVCHAN);
+ SETERRNO(EBADF,SS_IVCHAN);
return -1;
}
while (PerlLIO_close(fd) != 0) {
}
PerlIO_funcs PerlIO_unix = {
+ sizeof(PerlIO_funcs),
"unix",
sizeof(PerlIOUnix),
PERLIO_K_RAW,
PerlIOUnix_pushed,
- PerlIOBase_noop_ok,
+ PerlIOBase_popped,
PerlIOUnix_open,
+ PerlIOBase_binmode, /* binmode */
NULL,
PerlIOUnix_fileno,
PerlIOUnix_dup,
PerlIOUnix_seek,
PerlIOUnix_tell,
PerlIOUnix_close,
- PerlIOBase_noop_ok, /* flush */
- PerlIOBase_noop_fail, /* fill */
+ PerlIOBase_noop_ok, /* flush */
+ PerlIOBase_noop_fail, /* fill */
PerlIOBase_eof,
PerlIOBase_error,
PerlIOBase_clearerr,
PerlIOBase_setlinebuf,
- NULL, /* get_base */
- NULL, /* get_bufsiz */
- NULL, /* get_ptr */
- NULL, /* get_cnt */
- NULL, /* set_ptrcnt */
+ NULL, /* get_base */
+ NULL, /* get_bufsiz */
+ NULL, /* get_ptr */
+ NULL, /* get_cnt */
+ NULL, /* set_ptrcnt */
};
/*--------------------------------------------------------------------------------------*/
* stdio as a layer
*/
+#if defined(VMS) && !defined(STDIO_BUFFER_WRITABLE)
+/* perl5.8 - This ensures the last minute VMS ungetc fix is not
+ broken by the last second glibc 2.3 fix
+ */
+#define STDIO_BUFFER_WRITABLE
+#endif
+
+
typedef struct {
struct _PerlIO base;
- FILE *stdio; /* The stream */
+ FILE *stdio; /* The stream */
} PerlIOStdio;
IV
PerlIOStdio_fileno(pTHX_ PerlIO *f)
{
- return PerlSIO_fileno(PerlIOSelf(f, PerlIOStdio)->stdio);
+ FILE *s;
+ if (PerlIOValid(f) && (s = PerlIOSelf(f, PerlIOStdio)->stdio)) {
+ return PerlSIO_fileno(s);
+ }
+ errno = EBADF;
+ return -1;
}
char *
return ret;
}
-/*
- * This isn't used yet ...
- */
IV
-PerlIOStdio_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOStdio_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
- if (*PerlIONext(f)) {
- PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio);
- char tmode[8];
- FILE *stdio =
- PerlSIO_fdopen(PerlIO_fileno(PerlIONext(f)), mode =
- PerlIOStdio_mode(mode, tmode));
- if (stdio)
- s->stdio = stdio;
- else
- return -1;
+ PerlIO *n;
+ if (PerlIOValid(f) && PerlIOValid(n = PerlIONext(f))) {
+ PerlIO_funcs *toptab = PerlIOBase(n)->tab;
+ if (toptab == tab) {
+ /* Top is already stdio - pop self (duplicate) and use original */
+ PerlIO_pop(aTHX_ f);
+ return 0;
+ } else {
+ int fd = PerlIO_fileno(n);
+ char tmode[8];
+ FILE *stdio;
+ if (fd >= 0 && (stdio = PerlSIO_fdopen(fd,
+ mode = PerlIOStdio_mode(mode, tmode)))) {
+ PerlIOSelf(f, PerlIOStdio)->stdio = stdio;
+ /* We never call down so do any pending stuff now */
+ PerlIO_flush(PerlIONext(f));
+ }
+ else {
+ return -1;
+ }
+ }
}
- return PerlIOBase_pushed(aTHX_ f, mode, arg);
+ return PerlIOBase_pushed(aTHX_ f, mode, arg, tab);
}
+
PerlIO *
-PerlIO_importFILE(FILE *stdio, int fl)
+PerlIO_importFILE(FILE *stdio, const char *mode)
{
dTHX;
PerlIO *f = NULL;
if (stdio) {
- PerlIOStdio *s =
- PerlIOSelf(PerlIO_push
- (aTHX_(f = PerlIO_allocate(aTHX)), &PerlIO_stdio,
- "r+", Nullsv), PerlIOStdio);
- s->stdio = stdio;
+ PerlIOStdio *s;
+ if (!mode || !*mode) {
+ /* We need to probe to see how we can open the stream
+ so start with read/write and then try write and read
+ we dup() so that we can fclose without loosing the fd.
+
+ Note that the errno value set by a failing fdopen
+ varies between stdio implementations.
+ */
+ int fd = PerlLIO_dup(fileno(stdio));
+ FILE *f2 = PerlSIO_fdopen(fd, (mode = "r+"));
+ if (!f2) {
+ f2 = PerlSIO_fdopen(fd, (mode = "w"));
+ }
+ if (!f2) {
+ f2 = PerlSIO_fdopen(fd, (mode = "r"));
+ }
+ if (!f2) {
+ /* Don't seem to be able to open */
+ PerlLIO_close(fd);
+ return f;
+ }
+ fclose(f2);
+ }
+ if ((f = PerlIO_push(aTHX_(f = PerlIO_allocate(aTHX)), &PerlIO_stdio, mode, Nullsv))) {
+ s = PerlIOSelf(f, PerlIOStdio);
+ s->stdio = stdio;
+ }
}
return f;
}
int perm, PerlIO *f, int narg, SV **args)
{
char tmode[8];
- if (f) {
+ if (PerlIOValid(f)) {
char *path = SvPV_nolen(*args);
PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio);
FILE *stdio;
else {
FILE *stdio = PerlSIO_fopen(path, mode);
if (stdio) {
- PerlIOStdio *s =
- PerlIOSelf(PerlIO_push
- (aTHX_(f = PerlIO_allocate(aTHX)), self,
+ PerlIOStdio *s;
+ if (!f) {
+ f = PerlIO_allocate(aTHX);
+ }
+ if ((f = PerlIO_push(aTHX_ f, self,
(mode = PerlIOStdio_mode(mode, tmode)),
- PerlIOArg),
- PerlIOStdio);
- s->stdio = stdio;
- PerlIOUnix_refcnt_inc(fileno(s->stdio));
+ PerlIOArg))) {
+ s = PerlIOSelf(f, PerlIOStdio);
+ s->stdio = stdio;
+ PerlIOUnix_refcnt_inc(fileno(s->stdio));
+ }
+ return f;
+ }
+ else {
+ return NULL;
}
- return f;
}
}
if (fd >= 0) {
PerlIOStdio_mode(mode, tmode));
}
if (stdio) {
- PerlIOStdio *s =
- PerlIOSelf(PerlIO_push
- (aTHX_(f = PerlIO_allocate(aTHX)), self,
- mode, PerlIOArg), PerlIOStdio);
- s->stdio = stdio;
- PerlIOUnix_refcnt_inc(fileno(s->stdio));
+ PerlIOStdio *s;
+ if (!f) {
+ f = PerlIO_allocate(aTHX);
+ }
+ if ((f = PerlIO_push(aTHX_ f, self, mode, PerlIOArg))) {
+ s = PerlIOSelf(f, PerlIOStdio);
+ s->stdio = stdio;
+ PerlIOUnix_refcnt_inc(fileno(s->stdio));
+ }
return f;
}
}
*/
if ((f = PerlIOBase_dup(aTHX_ f, o, param, flags))) {
FILE *stdio = PerlIOSelf(o, PerlIOStdio)->stdio;
+ int fd = fileno(stdio);
+ char mode[8];
if (flags & PERLIO_DUP_FD) {
- int fd = PerlLIO_dup(fileno(stdio));
- if (fd >= 0) {
- char mode[8];
- stdio = fdopen(fd, PerlIO_modestr(o,mode));
+ int dfd = PerlLIO_dup(fileno(stdio));
+ if (dfd >= 0) {
+ stdio = PerlSIO_fdopen(dfd, PerlIO_modestr(o,mode));
+ goto set_this;
}
else {
/* FIXME: To avoid messy error recovery if dup fails
*/
}
}
+ stdio = PerlSIO_fdopen(fd, PerlIO_modestr(o,mode));
+ set_this:
PerlIOSelf(f, PerlIOStdio)->stdio = stdio;
PerlIOUnix_refcnt_inc(fileno(stdio));
}
return f;
}
+static int
+PerlIOStdio_invalidate_fileno(pTHX_ FILE *f)
+{
+ /* XXX this could use PerlIO_canset_fileno() and
+ * PerlIO_set_fileno() support from Configure
+ */
+# if defined(__GLIBC__)
+ /* There may be a better way for GLIBC:
+ - libio.h defines a flag to not close() on cleanup
+ */
+ f->_fileno = -1;
+ return 1;
+# elif defined(__sun__)
+# if defined(_LP64)
+ /* On solaris, if _LP64 is defined, the FILE structure is this:
+ *
+ * struct FILE {
+ * long __pad[16];
+ * };
+ *
+ * It turns out that the fd is stored in the top 32 bits of
+ * file->__pad[4]. The lower 32 bits contain flags. file->pad[5] appears
+ * to contain a pointer or offset into another structure. All the
+ * remaining fields are zero.
+ *
+ * We set the top bits to -1 (0xFFFFFFFF).
+ */
+ f->__pad[4] |= 0xffffffff00000000L;
+ assert(fileno(f) == 0xffffffff);
+# else /* !defined(_LP64) */
+ /* _file is just a unsigned char :-(
+ Not clear why we dup() rather than using -1
+ even if that would be treated as 0xFF - so will
+ a dup fail ...
+ */
+ f->_file = PerlLIO_dup(fileno(f));
+# endif /* defined(_LP64) */
+ return 1;
+# elif defined(__hpux)
+ f->__fileH = 0xff;
+ f->__fileL = 0xff;
+ return 1;
+ /* Next one ->_file seems to be a reasonable fallback, i.e. if
+ your platform does not have special entry try this one.
+ [For OSF only have confirmation for Tru64 (alpha)
+ but assume other OSFs will be similar.]
+ */
+# elif defined(_AIX) || defined(__osf__) || defined(__irix__)
+ f->_file = -1;
+ return 1;
+# elif defined(__FreeBSD__)
+ /* There may be a better way on FreeBSD:
+ - we could insert a dummy func in the _close function entry
+ f->_close = (int (*)(void *)) dummy_close;
+ */
+ f->_file = -1;
+ return 1;
+# elif defined(__CYGWIN__)
+ /* There may be a better way on CYGWIN:
+ - we could insert a dummy func in the _close function entry
+ f->_close = (int (*)(void *)) dummy_close;
+ */
+ f->_file = -1;
+ return 1;
+# elif defined(WIN32)
+# if defined(__BORLANDC__)
+ f->fd = PerlLIO_dup(fileno(f));
+# elif defined(UNDER_CE)
+ /* WIN_CE does not have access to FILE internals, it hardly has FILE
+ structure at all
+ */
+# else
+ f->_file = -1;
+# endif
+ return 1;
+# else
+#if 0
+ /* Sarathy's code did this - we fall back to a dup/dup2 hack
+ (which isn't thread safe) instead
+ */
+# error "Don't know how to set FILE.fileno on your platform"
+#endif
+ return 0;
+# endif
+}
+
IV
PerlIOStdio_close(pTHX_ PerlIO *f)
{
-#ifdef SOCKS5_VERSION_NAME
- int optval;
- Sock_size_t optlen = sizeof(int);
-#endif
FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
- if (PerlIOUnix_refcnt_dec(fileno(stdio)) > 0) {
- /* Do not close it but do flush any buffers */
- PerlIO_flush(f);
- return 0;
+ if (!stdio) {
+ errno = EBADF;
+ return -1;
}
- return (
+ else {
+ int fd = fileno(stdio);
+ int socksfd = 0;
+ int invalidate = 0;
+ IV result = 0;
+ int saveerr = 0;
+ int dupfd = 0;
#ifdef SOCKS5_VERSION_NAME
- (getsockopt
- (PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (void *) &optval,
- &optlen) <
- 0) ? PerlSIO_fclose(stdio) : close(PerlIO_fileno(f))
-#else
- PerlSIO_fclose(stdio)
+ /* Socks lib overrides close() but stdio isn't linked to
+ that library (though we are) - so we must call close()
+ on sockets on stdio's behalf.
+ */
+ int optval;
+ Sock_size_t optlen = sizeof(int);
+ if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *) &optval, &optlen) == 0) {
+ socksfd = 1;
+ invalidate = 1;
+ }
#endif
- );
-
+ if (PerlIOUnix_refcnt_dec(fd) > 0) {
+ /* File descriptor still in use */
+ invalidate = 1;
+ socksfd = 0;
+ }
+ if (invalidate) {
+ /* For STD* handles don't close the stdio at all
+ this is because we have shared the FILE * too
+ */
+ if (stdio == stdin) {
+ /* Some stdios are buggy fflush-ing inputs */
+ return 0;
+ }
+ else if (stdio == stdout || stdio == stderr) {
+ return PerlIO_flush(f);
+ }
+ /* Tricky - must fclose(stdio) to free memory but not close(fd)
+ Use Sarathy's trick from maint-5.6 to invalidate the
+ fileno slot of the FILE *
+ */
+ result = PerlIO_flush(f);
+ saveerr = errno;
+ if (!(invalidate = PerlIOStdio_invalidate_fileno(aTHX_ stdio))) {
+ dupfd = PerlLIO_dup(fd);
+ }
+ }
+ result = PerlSIO_fclose(stdio);
+ /* We treat error from stdio as success if we invalidated
+ errno may NOT be expected EBADF
+ */
+ if (invalidate && result != 0) {
+ errno = saveerr;
+ result = 0;
+ }
+ if (socksfd) {
+ /* in SOCKS case let close() determine return value */
+ result = close(fd);
+ }
+ if (dupfd) {
+ PerlLIO_dup2(dupfd,fd);
+ close(dupfd);
+ }
+ return result;
+ }
}
-
-
SSize_t
PerlIOStdio_read(pTHX_ PerlIO *f, void *vbuf, Size_t count)
{
FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio;
SSize_t got = 0;
- if (count == 1) {
- STDCHAR *buf = (STDCHAR *) vbuf;
- /*
- * Perl is expecting PerlIO_getc() to fill the buffer Linux's
- * stdio does not do that for fread()
- */
- int ch = PerlSIO_fgetc(s);
- if (ch != EOF) {
- *buf = ch;
- got = 1;
+ for (;;) {
+ if (count == 1) {
+ STDCHAR *buf = (STDCHAR *) vbuf;
+ /*
+ * Perl is expecting PerlIO_getc() to fill the buffer Linux's
+ * stdio does not do that for fread()
+ */
+ int ch = PerlSIO_fgetc(s);
+ if (ch != EOF) {
+ *buf = ch;
+ got = 1;
+ }
}
+ else
+ got = PerlSIO_fread(vbuf, 1, count, s);
+ if (got || errno != EINTR)
+ break;
+ PERL_ASYNC_CHECK();
+ errno = 0; /* just in case */
}
- else
- got = PerlSIO_fread(vbuf, 1, count, s);
return got;
}
SSize_t
PerlIOStdio_unread(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
{
- FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio;
- STDCHAR *buf = ((STDCHAR *) vbuf) + count - 1;
SSize_t unread = 0;
- while (count > 0) {
- int ch = *buf-- & 0xff;
- if (PerlSIO_ungetc(ch, s) != ch)
- break;
- unread++;
- count--;
+ FILE *s = PerlIOSelf(f, PerlIOStdio)->stdio;
+
+#ifdef STDIO_BUFFER_WRITABLE
+ if (PerlIO_fast_gets(f) && PerlIO_has_base(f)) {
+ STDCHAR *buf = ((STDCHAR *) vbuf) + count;
+ STDCHAR *base = PerlIO_get_base(f);
+ SSize_t cnt = PerlIO_get_cnt(f);
+ STDCHAR *ptr = PerlIO_get_ptr(f);
+ SSize_t avail = ptr - base;
+ if (avail > 0) {
+ if (avail > count) {
+ avail = count;
+ }
+ ptr -= avail;
+ Move(buf-avail,ptr,avail,STDCHAR);
+ count -= avail;
+ unread += avail;
+ PerlIO_set_ptrcnt(f,ptr,cnt+avail);
+ if (PerlSIO_feof(s) && unread >= 0)
+ PerlSIO_clearerr(s);
+ }
+ }
+ else
+#endif
+ if (PerlIO_has_cntptr(f)) {
+ /* We can get pointer to buffer but not its base
+ Do ungetc() but check chars are ending up in the
+ buffer
+ */
+ STDCHAR *eptr = (STDCHAR*)PerlSIO_get_ptr(s);
+ STDCHAR *buf = ((STDCHAR *) vbuf) + count;
+ while (count > 0) {
+ int ch = *--buf & 0xFF;
+ if (ungetc(ch,s) != ch) {
+ /* ungetc did not work */
+ break;
+ }
+ if ((STDCHAR*)PerlSIO_get_ptr(s) != --eptr || ((*eptr & 0xFF) != ch)) {
+ /* Did not change pointer as expected */
+ fgetc(s); /* get char back again */
+ break;
+ }
+ /* It worked ! */
+ count--;
+ unread++;
+ }
+ }
+
+ if (count > 0) {
+ unread += PerlIOBase_unread(aTHX_ f, vbuf, count);
}
return unread;
}
SSize_t
PerlIOStdio_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
{
- return PerlSIO_fwrite(vbuf, 1, count,
- PerlIOSelf(f, PerlIOStdio)->stdio);
+ SSize_t got;
+ for (;;) {
+ got = PerlSIO_fwrite(vbuf, 1, count,
+ PerlIOSelf(f, PerlIOStdio)->stdio);
+ if (got || errno != EINTR)
+ break;
+ PERL_ASYNC_CHECK();
+ errno = 0; /* just in case */
+ }
+ return got;
}
IV
}
IV
-PerlIOStdio_fill(pTHX_ PerlIO *f)
-{
- FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
- int c;
- /*
- * fflush()ing read-only streams can cause trouble on some stdio-s
- */
- if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) {
- if (PerlSIO_fflush(stdio) != 0)
- return EOF;
- }
- c = PerlSIO_fgetc(stdio);
- if (c == EOF || PerlSIO_ungetc(c, stdio) != c)
- return EOF;
- return 0;
-}
-
-IV
PerlIOStdio_eof(pTHX_ PerlIO *f)
{
return PerlSIO_feof(PerlIOSelf(f, PerlIOStdio)->stdio);
FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
if (ptr != NULL) {
#ifdef STDIO_PTR_LVALUE
- PerlSIO_set_ptr(stdio, (void*)ptr); /* LHS STDCHAR* cast non-portable */
+ PerlSIO_set_ptr(stdio, (void*)ptr); /* LHS STDCHAR* cast non-portable */
#ifdef STDIO_PTR_LVAL_SETS_CNT
if (PerlSIO_get_cnt(stdio) != (cnt)) {
assert(PerlSIO_get_cnt(stdio) == (cnt));
*/
return;
#endif
-#else /* STDIO_PTR_LVALUE */
+#else /* STDIO_PTR_LVALUE */
PerlProc_abort();
-#endif /* STDIO_PTR_LVALUE */
+#endif /* STDIO_PTR_LVALUE */
}
/*
* Now (or only) set cnt
*/
#ifdef STDIO_CNT_LVALUE
PerlSIO_set_cnt(stdio, cnt);
-#else /* STDIO_CNT_LVALUE */
+#else /* STDIO_CNT_LVALUE */
#if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT))
PerlSIO_set_ptr(stdio,
PerlSIO_get_ptr(stdio) + (PerlSIO_get_cnt(stdio) -
cnt));
-#else /* STDIO_PTR_LVAL_SETS_CNT */
+#else /* STDIO_PTR_LVAL_SETS_CNT */
PerlProc_abort();
-#endif /* STDIO_PTR_LVAL_SETS_CNT */
-#endif /* STDIO_CNT_LVALUE */
+#endif /* STDIO_PTR_LVAL_SETS_CNT */
+#endif /* STDIO_CNT_LVALUE */
}
+
#endif
+IV
+PerlIOStdio_fill(pTHX_ PerlIO *f)
+{
+ FILE *stdio = PerlIOSelf(f, PerlIOStdio)->stdio;
+ int c;
+ /*
+ * fflush()ing read-only streams can cause trouble on some stdio-s
+ */
+ if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) {
+ if (PerlSIO_fflush(stdio) != 0)
+ return EOF;
+ }
+ c = PerlSIO_fgetc(stdio);
+ if (c == EOF)
+ return EOF;
+
+#if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT)))
+
+#ifdef STDIO_BUFFER_WRITABLE
+ if (PerlIO_fast_gets(f) && PerlIO_has_base(f)) {
+ /* Fake ungetc() to the real buffer in case system's ungetc
+ goes elsewhere
+ */
+ STDCHAR *base = (STDCHAR*)PerlSIO_get_base(stdio);
+ SSize_t cnt = PerlSIO_get_cnt(stdio);
+ STDCHAR *ptr = (STDCHAR*)PerlSIO_get_ptr(stdio);
+ if (ptr == base+1) {
+ *--ptr = (STDCHAR) c;
+ PerlIOStdio_set_ptrcnt(aTHX_ f,ptr,cnt+1);
+ if (PerlSIO_feof(stdio))
+ PerlSIO_clearerr(stdio);
+ return 0;
+ }
+ }
+ else
+#endif
+ if (PerlIO_has_cntptr(f)) {
+ STDCHAR ch = c;
+ if (PerlIOStdio_unread(aTHX_ f,&ch,1) == 1) {
+ return 0;
+ }
+ }
+#endif
+
+#if defined(VMS)
+ /* An ungetc()d char is handled separately from the regular
+ * buffer, so we stuff it in the buffer ourselves.
+ * Should never get called as should hit code above
+ */
+ *(--((*stdio)->_ptr)) = (unsigned char) c;
+ (*stdio)->_cnt++;
+#else
+ /* If buffer snoop scheme above fails fall back to
+ using ungetc().
+ */
+ if (PerlSIO_ungetc(c, stdio) != c)
+ return EOF;
+#endif
+ return 0;
+}
+
+
+
PerlIO_funcs PerlIO_stdio = {
+ sizeof(PerlIO_funcs),
"stdio",
sizeof(PerlIOStdio),
- PERLIO_K_BUFFERED,
- PerlIOBase_pushed,
- PerlIOBase_noop_ok,
+ PERLIO_K_BUFFERED|PERLIO_K_RAW,
+ PerlIOStdio_pushed,
+ PerlIOBase_popped,
PerlIOStdio_open,
+ PerlIOBase_binmode, /* binmode */
NULL,
PerlIOStdio_fileno,
PerlIOStdio_dup,
#ifdef USE_STDIO_PTR
PerlIOStdio_get_ptr,
PerlIOStdio_get_cnt,
-#if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT)))
- PerlIOStdio_set_ptrcnt
-#else /* STDIO_PTR_LVALUE */
- NULL
-#endif /* STDIO_PTR_LVALUE */
-#else /* USE_STDIO_PTR */
+# if defined(HAS_FAST_STDIO) && defined(USE_FAST_STDIO)
+ PerlIOStdio_set_ptrcnt,
+# else
NULL,
+# endif /* HAS_FAST_STDIO && USE_FAST_STDIO */
+#else
NULL,
- NULL
-#endif /* USE_STDIO_PTR */
+ NULL,
+ NULL,
+#endif /* USE_STDIO_PTR */
};
+/* Note that calls to PerlIO_exportFILE() are reversed using
+ * PerlIO_releaseFILE(), not importFILE. */
FILE *
-PerlIO_exportFILE(PerlIO *f, int fl)
+PerlIO_exportFILE(PerlIO * f, const char *mode)
{
dTHX;
- FILE *stdio;
- PerlIO_flush(f);
- stdio = fdopen(PerlIO_fileno(f), "r+");
- if (stdio) {
- PerlIOStdio *s =
- PerlIOSelf(PerlIO_push(aTHX_ f, &PerlIO_stdio, "r+", Nullsv),
- PerlIOStdio);
- s->stdio = stdio;
+ FILE *stdio = NULL;
+ if (PerlIOValid(f)) {
+ char buf[8];
+ PerlIO_flush(f);
+ if (!mode || !*mode) {
+ mode = PerlIO_modestr(f, buf);
+ }
+ stdio = PerlSIO_fdopen(PerlIO_fileno(f), mode);
+ if (stdio) {
+ PerlIOl *l = *f;
+ /* De-link any lower layers so new :stdio sticks */
+ *f = NULL;
+ if ((f = PerlIO_push(aTHX_ f, &PerlIO_stdio, buf, Nullsv))) {
+ PerlIOStdio *s = PerlIOSelf(f, PerlIOStdio);
+ s->stdio = stdio;
+ /* Link previous lower layers under new one */
+ *PerlIONext(f) = l;
+ }
+ else {
+ /* restore layers list */
+ *f = l;
+ }
+ }
}
return stdio;
}
+
FILE *
PerlIO_findFILE(PerlIO *f)
{
}
l = *PerlIONext(&l);
}
- return PerlIO_exportFILE(f, 0);
+ /* Uses fallback "mode" via PerlIO_modestr() in PerlIO_exportFILE */
+ return PerlIO_exportFILE(f, Nullch);
}
+/* Use this to reverse PerlIO_exportFILE calls. */
void
PerlIO_releaseFILE(PerlIO *p, FILE *f)
{
+ PerlIOl *l;
+ while ((l = *p)) {
+ if (l->tab == &PerlIO_stdio) {
+ PerlIOStdio *s = PerlIOSelf(&l, PerlIOStdio);
+ if (s->stdio == f) {
+ dTHX;
+ PerlIO_pop(aTHX_ p);
+ return;
+ }
+ }
+ p = PerlIONext(p);
+ }
+ return;
}
/*--------------------------------------------------------------------------------------*/
*/
IV
-PerlIOBuf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOBuf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
int fd = PerlIO_fileno(f);
- Off_t posn;
if (fd >= 0 && PerlLIO_isatty(fd)) {
PerlIOBase(f)->flags |= PERLIO_F_LINEBUF | PERLIO_F_TTY;
}
- posn = PerlIO_tell(PerlIONext(f));
- if (posn != (Off_t) - 1) {
- b->posn = posn;
+ if (*PerlIONext(f)) {
+ Off_t posn = PerlIO_tell(PerlIONext(f));
+ if (posn != (Off_t) - 1) {
+ b->posn = posn;
+ }
}
- return PerlIOBase_pushed(aTHX_ f, mode, arg);
+ return PerlIOBase_pushed(aTHX_ f, mode, arg, tab);
}
PerlIO *
PerlIO_funcs *tab = PerlIO_layer_fetch(aTHX_ layers, n - 1, PerlIOBase(next)->tab);
next = (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm,
next, narg, args);
- if (!next || (*PerlIOBase(f)->tab->Pushed) (aTHX_ f, mode, PerlIOArg) != 0) {
+ if (!next || (*PerlIOBase(f)->tab->Pushed) (aTHX_ f, mode, PerlIOArg, self) != 0) {
return NULL;
}
}
*/
}
f = (*tab->Open) (aTHX_ tab, layers, n - 1, mode, fd, imode, perm,
- NULL, narg, args);
+ f, narg, args);
if (f) {
- if (PerlIO_push(aTHX_ f, self, mode, PerlIOArg) == 0) {
+ if (PerlIO_push(aTHX_ f, self, mode, PerlIOArg) == 0) {
/*
* if push fails during open, open fails. close will pop us.
*/
return NULL;
} else {
fd = PerlIO_fileno(f);
-#ifdef PERLIO_USING_CRLF
- /*
- * do something about failing setmode()? --jhi
- */
- PerlLIO_setmode(fd, O_BINARY);
-#endif
if (init && fd == 2) {
/*
* Initial stderr is unbuffered
*/
PerlIOBase(f)->flags |= PERLIO_F_UNBUF;
}
+#ifdef PERLIO_USING_CRLF
+# ifdef PERLIO_IS_BINMODE_FD
+ if (PERLIO_IS_BINMODE_FD(fd))
+ PerlIO_binmode(aTHX_ f, '<'/*not used*/, O_BINARY, Nullch);
+ else
+# endif
+ /*
+ * do something about failing setmode()? --jhi
+ */
+ PerlLIO_setmode(fd, O_BINARY);
+#endif
}
}
}
*/
b->posn += (b->ptr - buf);
if (b->ptr < b->end) {
- /*
- * We did not consume all of it
+ /* We did not consume all of it - try and seek downstream to
+ our logical position
*/
- if (PerlIO_seek(n, b->posn, SEEK_SET) == 0) {
+ if (PerlIOValid(n) && PerlIO_seek(n, b->posn, SEEK_SET) == 0) {
/* Reload n as some layers may pop themselves on seek */
b->posn = PerlIO_tell(n = PerlIONext(f));
}
+ else {
+ /* Seek failed (e.g. pipe or tty). Do NOT clear buffer or pre-read
+ data is lost for good - so return saying "ok" having undone
+ the position adjust
+ */
+ b->posn -= (b->ptr - buf);
+ return code;
+ }
}
}
b->ptr = b->end = b->buf;
PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF);
/* We check for Valid because of dubious decision to make PerlIO_flush(NULL) flush all */
- /* FIXME: Doing downstream flush may be sub-optimal see PerlIOBuf_fill() below */
if (PerlIOValid(n) && PerlIO_flush(n) != 0)
code = -1;
return code;
PerlIO *n = PerlIONext(f);
SSize_t avail;
/*
- * FIXME: doing the down-stream flush maybe sub-optimal if it causes
- * pre-read data in stdio buffer to be discarded.
- * However, skipping the flush also skips _our_ hosekeeping
- * and breaks tell tests. So we do the flush.
+ * Down-stream flush is defined not to loose read data so is harmless.
+ * we would not normally be fill'ing if there was data left in anycase.
*/
if (PerlIO_flush(f) != 0)
return -1;
PerlIOBase_flush_linebuf(aTHX);
if (!b->buf)
- PerlIO_get_base(f); /* allocate via vtable */
+ PerlIO_get_base(f); /* allocate via vtable */
b->ptr = b->end = b->buf;
+
+ if (!PerlIOValid(n)) {
+ PerlIOBase(f)->flags |= PERLIO_F_EOF;
+ return -1;
+ }
+
if (PerlIO_fast_gets(n)) {
/*
* Layer below is also buffered. We do _NOT_ want to call its
if (avail > 0) {
STDCHAR *ptr = PerlIO_get_ptr(n);
SSize_t cnt = avail;
- if (avail > b->bufsiz)
+ if (avail > (SSize_t)b->bufsiz)
avail = b->bufsiz;
Copy(ptr, b->buf, avail, STDCHAR);
PerlIO_set_ptrcnt(n, ptr + avail, cnt - avail);
PerlIOBase(f)->flags &= ~PERLIO_F_EOF;
}
}
+ if (count > 0) {
+ unread += PerlIOBase_unread(aTHX_ f, vbuf, count);
+ }
return unread;
}
PerlIO_get_base(f);
if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE))
return 0;
+ if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) {
+ if (PerlIO_flush(f) != 0) {
+ return 0;
+ }
+ }
while (count > 0) {
SSize_t avail = b->bufsiz - (b->ptr - b->buf);
if ((SSize_t) count < avail)
* b->posn is file position where b->buf was read, or will be written
*/
Off_t posn = b->posn;
+ if ((PerlIOBase(f)->flags & PERLIO_F_APPEND) &&
+ (PerlIOBase(f)->flags & PERLIO_F_WRBUF)) {
+#if 1
+ /* As O_APPEND files are normally shared in some sense it is better
+ to flush :
+ */
+ PerlIO_flush(f);
+#else
+ /* when file is NOT shared then this is sufficient */
+ PerlIO_seek(PerlIONext(f),0, SEEK_END);
+#endif
+ posn = b->posn = PerlIO_tell(PerlIONext(f));
+ }
if (b->buf) {
/*
* If buffer is valid adjust position by amount in buffer
}
IV
+PerlIOBuf_popped(pTHX_ PerlIO *f)
+{
+ IV code = PerlIOBase_popped(aTHX_ f);
+ PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
+ if (b->buf && b->buf != (STDCHAR *) & b->oneword) {
+ Safefree(b->buf);
+ }
+ b->buf = NULL;
+ b->ptr = b->end = b->buf;
+ PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF);
+ return code;
+}
+
+IV
PerlIOBuf_close(pTHX_ PerlIO *f)
{
IV code = PerlIOBase_close(aTHX_ f);
PerlIO_funcs PerlIO_perlio = {
+ sizeof(PerlIO_funcs),
"perlio",
sizeof(PerlIOBuf),
- PERLIO_K_BUFFERED,
+ PERLIO_K_BUFFERED|PERLIO_K_RAW,
PerlIOBuf_pushed,
- PerlIOBase_noop_ok,
+ PerlIOBuf_popped,
PerlIOBuf_open,
+ PerlIOBase_binmode, /* binmode */
NULL,
PerlIOBase_fileno,
PerlIOBuf_dup,
}
IV
-PerlIOPending_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOPending_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
- IV code = PerlIOBase_pushed(aTHX_ f, mode, arg);
+ IV code = PerlIOBase_pushed(aTHX_ f, mode, arg, tab);
PerlIOl *l = PerlIOBase(f);
/*
* Our PerlIO_fast_gets must match what we are pushed on, or sv_gets()
{
SSize_t avail = PerlIO_get_cnt(f);
SSize_t got = 0;
- if (count < avail)
+ if ((SSize_t)count < avail)
avail = count;
if (avail > 0)
got = PerlIOBuf_read(aTHX_ f, vbuf, avail);
- if (got >= 0 && got < count) {
+ if (got >= 0 && got < (SSize_t)count) {
SSize_t more =
PerlIO_read(f, ((STDCHAR *) vbuf) + got, count - got);
if (more >= 0 || got == 0)
}
PerlIO_funcs PerlIO_pending = {
+ sizeof(PerlIO_funcs),
"pending",
sizeof(PerlIOBuf),
- PERLIO_K_BUFFERED,
+ PERLIO_K_BUFFERED|PERLIO_K_RAW, /* not sure about RAW here */
PerlIOPending_pushed,
- PerlIOBase_noop_ok,
+ PerlIOBuf_popped,
NULL,
+ PerlIOBase_binmode, /* binmode */
NULL,
PerlIOBase_fileno,
PerlIOBuf_dup,
*/
typedef struct {
- PerlIOBuf base; /* PerlIOBuf stuff */
- STDCHAR *nl; /* Position of crlf we "lied" about in the
+ PerlIOBuf base; /* PerlIOBuf stuff */
+ STDCHAR *nl; /* Position of crlf we "lied" about in the
* buffer */
} PerlIOCrlf;
IV
-PerlIOCrlf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg)
+PerlIOCrlf_pushed(pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
{
IV code;
PerlIOBase(f)->flags |= PERLIO_F_CRLF;
- code = PerlIOBuf_pushed(aTHX_ f, mode, arg);
+ code = PerlIOBuf_pushed(aTHX_ f, mode, arg, tab);
#if 0
PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08" UVxf "\n",
f, PerlIOBase(f)->tab->name, (mode) ? mode : "(Null)",
PerlIO_get_base(f);
if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) {
PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf);
- if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) {
- STDCHAR *nl = b->ptr;
+ if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && (!c->nl || *c->nl == 0xd)) {
+ STDCHAR *nl = (c->nl) ? c->nl : b->ptr;
scan:
while (nl < b->end && *nl != 0xd)
nl++;
}
else {
int code;
- b->ptr++; /* say we have read it as far as
+ b->ptr++; /* say we have read it as far as
* flush() is concerned */
- b->buf++; /* Leave space in front of buffer */
- b->bufsiz--; /* Buffer is thus smaller */
- code = PerlIO_fill(f); /* Fetch some more */
- b->bufsiz++; /* Restore size for next time */
- b->buf--; /* Point at space */
- b->ptr = nl = b->buf; /* Which is what we hand
+ b->buf++; /* Leave space in front of buffer */
+ /* Note as we have moved buf up flush's
+ posn += ptr-buf
+ will naturally make posn point at CR
+ */
+ b->bufsiz--; /* Buffer is thus smaller */
+ code = PerlIO_fill(f); /* Fetch some more */
+ b->bufsiz++; /* Restore size for next time */
+ b->buf--; /* Point at space */
+ b->ptr = nl = b->buf; /* Which is what we hand
* off */
- b->posn--; /* Buffer starts here */
- *nl = 0xd; /* Fill in the CR */
+ *nl = 0xd; /* Fill in the CR */
if (code == 0)
- goto test; /* fill() call worked */
+ goto test; /* fill() call worked */
/*
* CR at EOF - just fall through
*/
{
PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf);
PerlIOCrlf *c = PerlIOSelf(f, PerlIOCrlf);
- IV flags = PerlIOBase(f)->flags;
if (!b->buf)
PerlIO_get_base(f);
if (!ptr) {
if (c->nl) {
ptr = c->nl + 1;
- if (ptr == b->end && *c->nl == 0xd) {
+ if (ptr == b->end && *c->nl == 0xd) {
/* Defered CR at end of buffer case - we lied about count */
- ptr--;
- }
- }
+ ptr--;
+ }
+ }
else {
ptr = b->end;
}
ptr -= cnt;
}
else {
+#if 0
/*
* Test code - delete when it works ...
*/
+ IV flags = PerlIOBase(f)->flags;
STDCHAR *chk = (c->nl) ? (c->nl+1) : b->end;
- if (ptr+cnt == c->nl && c->nl+1 == b->end && *c->nl == 0xd) {
+ if (ptr+cnt == c->nl && c->nl+1 == b->end && *c->nl == 0xd) {
/* Defered CR at end of buffer case - we lied about count */
chk--;
- }
+ }
chk -= cnt;
if (ptr != chk ) {
- Perl_warn(aTHX_ "ptr wrong %p != %p fl=%08" UVxf
+ Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08" UVxf
" nl=%p e=%p for %d", ptr, chk, flags, c->nl,
b->end, cnt);
}
+#endif
}
if (c->nl) {
if (ptr > c->nl) {
break;
}
else {
- *(b->ptr)++ = 0xd; /* CR */
- *(b->ptr)++ = 0xa; /* LF */
+ *(b->ptr)++ = 0xd; /* CR */
+ *(b->ptr)++ = 0xa; /* LF */
buf++;
if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) {
PerlIO_flush(f);
return PerlIOBuf_flush(aTHX_ f);
}
+IV
+PerlIOCrlf_binmode(pTHX_ PerlIO *f)
+{
+ if ((PerlIOBase(f)->flags & PERLIO_F_CRLF)) {
+ /* In text mode - flush any pending stuff and flip it */
+ PerlIOBase(f)->flags &= ~PERLIO_F_CRLF;
+#ifndef PERLIO_USING_CRLF
+ /* CRLF is unusual case - if this is just the :crlf layer pop it */
+ if (PerlIOBase(f)->tab == &PerlIO_crlf) {
+ PerlIO_pop(aTHX_ f);
+ }
+#endif
+ }
+ return 0;
+}
+
PerlIO_funcs PerlIO_crlf = {
+ sizeof(PerlIO_funcs),
"crlf",
sizeof(PerlIOCrlf),
- PERLIO_K_BUFFERED | PERLIO_K_CANCRLF,
+ PERLIO_K_BUFFERED | PERLIO_K_CANCRLF | PERLIO_K_RAW,
PerlIOCrlf_pushed,
- PerlIOBase_noop_ok, /* popped */
+ PerlIOBuf_popped, /* popped */
PerlIOBuf_open,
+ PerlIOCrlf_binmode, /* binmode */
NULL,
PerlIOBase_fileno,
PerlIOBuf_dup,
- PerlIOBuf_read, /* generic read works with ptr/cnt lies
+ PerlIOBuf_read, /* generic read works with ptr/cnt lies
* ... */
- PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */
- PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */
+ PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */
+ PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */
PerlIOBuf_seek,
PerlIOBuf_tell,
PerlIOBuf_close,
*/
typedef struct {
- PerlIOBuf base; /* PerlIOBuf stuff */
- Mmap_t mptr; /* Mapped address */
- Size_t len; /* mapped length */
- STDCHAR *bbuf; /* malloced buffer if map fails */
+ PerlIOBuf base; /* PerlIOBuf stuff */
+ Mmap_t mptr; /* Mapped address */
+ Size_t len; /* mapped length */
+ STDCHAR *bbuf; /* malloced buffer if map fails */
} PerlIOMmap;
static size_t page_size = 0;
if (!page_size) {
#if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE))
{
- SETERRNO(0, SS$_NORMAL);
+ SETERRNO(0, SS_NORMAL);
# ifdef _SC_PAGESIZE
page_size = sysconf(_SC_PAGESIZE);
# else
page_size = getpagesize();
# else
# if defined(I_SYS_PARAM) && defined(PAGESIZE)
- page_size = PAGESIZE; /* compiletime, bad */
+ page_size = PAGESIZE; /* compiletime, bad */
# endif
# endif
#endif
/*
* We have a write buffer or flushed PerlIOBuf read buffer
*/
- m->bbuf = b->buf; /* save it in case we need it again */
- b->buf = NULL; /* Clear to trigger below */
+ m->bbuf = b->buf; /* save it in case we need it again */
+ b->buf = NULL; /* Clear to trigger below */
}
if (!b->buf) {
- PerlIOMmap_map(aTHX_ f); /* Try and map it */
+ PerlIOMmap_map(aTHX_ f); /* Try and map it */
if (!b->buf) {
/*
* Map did not work - recover PerlIOBuf buffer if we have one
PerlIO_funcs PerlIO_mmap = {
+ sizeof(PerlIO_funcs),
"mmap",
sizeof(PerlIOMmap),
- PERLIO_K_BUFFERED,
+ PERLIO_K_BUFFERED|PERLIO_K_RAW,
PerlIOBuf_pushed,
- PerlIOBase_noop_ok,
+ PerlIOBuf_popped,
PerlIOBuf_open,
+ PerlIOBase_binmode, /* binmode */
NULL,
PerlIOBase_fileno,
PerlIOMmap_dup,
PerlIOBuf_set_ptrcnt,
};
-#endif /* HAS_MMAP */
+#endif /* HAS_MMAP */
PerlIO *
Perl_PerlIO_stdin(pTHX)
PerlIO *
PerlIO_tmpfile(void)
{
- /*
- * I have no idea how portable mkstemp() is ...
- */
-#if defined(WIN32) || !defined(HAVE_MKSTEMP)
- dTHX;
- PerlIO *f = NULL;
- FILE *stdio = PerlSIO_tmpfile();
- if (stdio) {
- PerlIOStdio *s =
- PerlIOSelf(PerlIO_push
- (aTHX_(f = PerlIO_allocate(aTHX)), &PerlIO_stdio,
- "w+", Nullsv), PerlIOStdio);
- s->stdio = stdio;
- }
- return f;
-#else
- dTHX;
- SV *sv = newSVpv("/tmp/PerlIO_XXXXXX", 0);
- int fd = mkstemp(SvPVX(sv));
- PerlIO *f = NULL;
- if (fd >= 0) {
- f = PerlIO_fdopen(fd, "w+");
- if (f) {
- PerlIOBase(f)->flags |= PERLIO_F_TEMP;
- }
- PerlLIO_unlink(SvPVX(sv));
- SvREFCNT_dec(sv);
- }
- return f;
-#endif
+ dTHX;
+ PerlIO *f = NULL;
+ int fd = -1;
+ SV *sv = Nullsv;
+ GV *gv = gv_fetchpv("File::Temp::tempfile", FALSE, SVt_PVCV);
+
+ if (!gv) {
+ ENTER;
+ Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT,
+ newSVpvn("File::Temp", 10), Nullsv, Nullsv, Nullsv);
+ gv = gv_fetchpv("File::Temp::tempfile", FALSE, SVt_PVCV);
+ GvIMPORTED_CV_on(gv);
+ LEAVE;
+ }
+
+ if (gv && GvCV(gv)) {
+ dSP;
+ ENTER;
+ SAVETMPS;
+ PUSHMARK(SP);
+ PUTBACK;
+ if (call_sv((SV*)GvCV(gv), G_SCALAR)) {
+ GV *gv = (GV*)SvRV(newSVsv(*PL_stack_sp--));
+ IO *io = gv ? GvIO(gv) : 0;
+ fd = io ? PerlIO_fileno(IoIFP(io)) : -1;
+ }
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+ }
+
+ if (fd >= 0) {
+ f = PerlIO_fdopen(fd, "w+");
+ if (sv) {
+ if (f)
+ PerlIOBase(f)->flags |= PERLIO_F_TEMP;
+ PerlLIO_unlink(SvPVX(sv));
+ SvREFCNT_dec(sv);
+ }
+ }
+
+ return f;
}
#undef HAS_FSETPOS
#undef HAS_FGETPOS
-#endif /* USE_SFIO */
-#endif /* PERLIO_IS_STDIO */
+#endif /* USE_SFIO */
+#endif /* PERLIO_IS_STDIO */
/*======================================================================================*/
/*
if (f && len == sizeof(Off_t))
return PerlIO_seek(f, *posn, SEEK_SET);
}
- SETERRNO(EINVAL, SS$_IVCHAN);
+ SETERRNO(EINVAL, SS_IVCHAN);
return -1;
}
#else
#endif
}
}
- SETERRNO(EINVAL, SS$_IVCHAN);
+ SETERRNO(EINVAL, SS_IVCHAN);
return -1;
}
#endif
vprintf(char *pat, char *args)
{
_doprnt(pat, args, stdout);
- return 0; /* wrong, but perl doesn't use the return
+ return 0; /* wrong, but perl doesn't use the return
* value */
}
vfprintf(FILE *fd, char *pat, char *args)
{
_doprnt(pat, args, fd);
- return 0; /* wrong, but perl doesn't use the return
+ return 0; /* wrong, but perl doesn't use the return
* value */
}
+
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff