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/* missing functions copied from perlio.c */
#include "perlioutil.h"
#if defined(WIN32)
PerlIO_funcs *
PerlIO_find_layer(pTHX_ const char *name, STRLEN len, int load)
{
dVAR;
IV i;
if ((SSize_t) len <= 0)
len = strlen(name);
for (i = 0; i < PL_known_layers->cur; i++) {
PerlIO_funcs * const f = PL_known_layers->array[i].funcs;
if (memEQ(f->name, name, len) && f->name[len] == 0) {
PerlIO_debug("%.*s => %p\n", (int) len, name, (void*)f);
return f;
}
}
if (load && PL_subname && PL_def_layerlist
&& PL_def_layerlist->cur >= 2) {
if (PL_in_load_module) {
Perl_croak(aTHX_ "Recursive call to Perl_load_module in PerlIO_find_layer");
return NULL;
} else {
SV * const pkgsv = newSVpvs("PerlIO");
SV * const layer = newSVpvn(name, len);
CV * const cv = get_cv("PerlIO::Layer::NoWarnings", FALSE);
ENTER;
SAVEINT(PL_in_load_module);
if (cv) {
SAVEGENERICSV(PL_warnhook);
PL_warnhook = (SV *) (SvREFCNT_inc_simple_NN(cv));
}
PL_in_load_module++;
/*
* The two SVs are magically freed by load_module
*/
Perl_load_module(aTHX_ 0, pkgsv, NULL, layer, NULL);
PL_in_load_module--;
LEAVE;
return PerlIO_find_layer(aTHX_ name, len, 0);
}
}
PerlIO_debug("Cannot find %.*s\n", (int) len, name);
return NULL;
}
int
PerlIOUnix_oflags(const char *mode)
{
int oflags = -1;
if (*mode == IoTYPE_IMPLICIT || *mode == IoTYPE_NUMERIC)
mode++;
switch (*mode) {
case 'r':
oflags = O_RDONLY;
if (*++mode == '+') {
oflags = O_RDWR;
mode++;
}
break;
case 'w':
oflags = O_CREAT | O_TRUNC;
if (*++mode == '+') {
oflags |= O_RDWR;
mode++;
}
else
oflags |= O_WRONLY;
break;
case 'a':
oflags = O_CREAT | O_APPEND;
if (*++mode == '+') {
oflags |= O_RDWR;
mode++;
}
else
oflags |= O_WRONLY;
break;
}
if (*mode == 'b') {
oflags |= O_BINARY;
oflags &= ~O_TEXT;
mode++;
}
else if (*mode == 't') {
oflags |= O_TEXT;
oflags &= ~O_BINARY;
mode++;
}
/*
* Always open in binary mode
*/
oflags |= O_BINARY;
if (*mode || oflags == -1) {
SETERRNO(EINVAL, LIB_INVARG);
oflags = -1;
}
return oflags;
}
#endif /* WIN32 */
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