MP_INLINE static void
modperl_io_perlio_restore_stdhandle(pTHX_ int mode)
{
GV *handle_orig = gv_fetchpv(mode == O_RDONLY ? "STDIN" : "STDOUT",
FALSE, SVt_PVIO);
MP_TRACE_o(MP_FUNC, "start STD%s", mode == O_RDONLY ? "IN" : "OUT");
/* since closing unflushed STDOUT may trigger a subrequest
* (e.g. via mod_include), resulting in potential another response
* handler call, which may try to close STDOUT too. We will
* segfault, if that subrequest doesn't return before the the top
* level STDOUT is attempted to be closed. To prevent this
* situation always explicitly flush STDOUT, before reopening it.
*/
if (mode != O_RDONLY &&
GvIOn(handle_orig) && IoOFP(GvIOn(handle_orig)) &&
(PerlIO_flush(IoOFP(GvIOn(handle_orig))) == -1)) {
Perl_croak(aTHX_ "Failed to flush STDOUT: %" SVf, get_sv("!", TRUE));
}
/* close the overriding filehandle */
do_close(handle_orig, FALSE);
MP_TRACE_o(MP_FUNC, "end STD%s", mode == O_RDONLY ? "IN" : "OUT");
}
MP_INLINE static void
modperl_io_perlio_override_stdhandle(pTHX_ request_rec *r, int mode)
{
dHANDLE(mode == O_RDONLY ? "STDIN" : "STDOUT");
int status;
SV *sv = sv_newmortal();
MP_TRACE_o(MP_FUNC, "start STD%s", mode == O_RDONLY ? "IN" : "OUT");
save_gp(handle, 1);
sv_setref_pv(sv, "Apache2::RequestRec", (void*)r);
status = do_open9(handle, mode == O_RDONLY ? "<:Apache2" : ">:Apache2",
9, FALSE, mode, 0, (PerlIO *)NULL, sv, 1);
if (status == 0) {
Perl_croak(aTHX_ "Failed to open STD%s: %" SVf,
mode == O_RDONLY ? "IN" : "OUT", get_sv("!", TRUE));
}
MP_TRACE_o(MP_FUNC, "end STD%s", mode==O_RDONLY ? "IN" : "OUT");
}
MP_INLINE SV *modperl_slurp_filename(pTHX_ request_rec *r, int tainted)
{
SV *sv;
apr_status_t rc;
apr_size_t size;
apr_file_t *file;
size = r->finfo.size;
sv = newSV(size);
/* XXX: could have checked whether r->finfo.filehand is valid and
* save the apr_file_open call, but apache gives us no API to
* check whether filehand is valid. we can't test whether it's
* NULL or not, as it may contain garbagea
*/
rc = apr_file_open(&file, r->filename, APR_READ|APR_BINARY,
APR_OS_DEFAULT, r->pool);
SLURP_SUCCESS("opening");
rc = apr_file_read(file, SvPVX(sv), &size);
SLURP_SUCCESS("reading");
MP_TRACE_o(MP_FUNC, "read %d bytes from '%s'", size, r->filename);
if (r->finfo.size != size) {
SvREFCNT_dec(sv);
Perl_croak(aTHX_ "Error: read %d bytes, expected %d ('%s')",
size, (apr_size_t)r->finfo.size, r->filename);
}
rc = apr_file_close(file);
SLURP_SUCCESS("closing");
SvPVX(sv)[size] = '\0';
SvCUR_set(sv, size);
SvPOK_on(sv);
if (tainted) {
SvTAINTED_on(sv);
}
else {
SvTAINTED_off(sv);
}
return newRV_noinc(sv);
}
