-/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
Contributed by Andy Vaught
-This file is part of the GNU Fortran 95 runtime library (libgfortran).
+This file is part of the GNU Fortran runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file. (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with Libgfortran; see the file COPYING. If not, write to
-the Free Software Foundation, 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
/* Implement the non-IOLENGTH variant of the INQUIRY statement */
#include "io.h"
+#include "unix.h"
+#include <string.h>
-static const char undefined[] = "UNDEFINED";
+static const char yes[] = "YES", no[] = "NO", undefined[] = "UNDEFINED";
/* inquire_via_unit()-- Inquiry via unit number. The unit might not exist. */
static void
-inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
+inquire_via_unit (st_parameter_inquire *iqp, gfc_unit *u)
{
const char *p;
GFC_INTEGER_4 cf = iqp->common.flags;
- GFC_INTEGER_4 cf2 = iqp->flags2;
- if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
- {
- *iqp->exist = (iqp->common.unit >= 0
- && iqp->common.unit <= GFC_INTEGER_4_HUGE);
+ if (iqp->common.unit == GFC_INTERNAL_UNIT ||
+ iqp->common.unit == GFC_INTERNAL_UNIT4 ||
+ (u != NULL && u->internal_unit_kind != 0))
+ generate_error (&iqp->common, LIBERROR_INQUIRE_INTERNAL_UNIT, NULL);
- if ((cf & IOPARM_INQUIRE_HAS_FILE) == 0)
- {
- if (!(*iqp->exist))
- *iqp->common.iostat = LIBERROR_BAD_UNIT;
- *iqp->exist = *iqp->exist
- && (*iqp->common.iostat != LIBERROR_BAD_UNIT);
- }
- }
+ if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
+ *iqp->exist = (u != NULL &&
+ iqp->common.unit != GFC_INTERNAL_UNIT &&
+ iqp->common.unit != GFC_INTERNAL_UNIT4)
+ || (iqp->common.unit >= 0);
if ((cf & IOPARM_INQUIRE_HAS_OPENED) != 0)
*iqp->opened = (u != NULL);
if ((cf & IOPARM_INQUIRE_HAS_NAME) != 0
&& u != NULL && u->flags.status != STATUS_SCRATCH)
- fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
+ {
+#if defined(HAVE_TTYNAME_R) || defined(HAVE_TTYNAME)
+ if (u->unit_number == options.stdin_unit
+ || u->unit_number == options.stdout_unit
+ || u->unit_number == options.stderr_unit)
+ {
+ int err = stream_ttyname (u->s, iqp->name, iqp->name_len);
+ if (err == 0)
+ {
+ gfc_charlen_type tmplen = strlen (iqp->name);
+ if (iqp->name_len > tmplen)
+ memset (&iqp->name[tmplen], ' ', iqp->name_len - tmplen);
+ }
+ else /* If ttyname does not work, go with the default. */
+ cf_strcpy (iqp->name, iqp->name_len, u->filename);
+ }
+ else
+ cf_strcpy (iqp->name, iqp->name_len, u->filename);
+#elif defined __MINGW32__
+ if (u->unit_number == options.stdin_unit)
+ fstrcpy (iqp->name, iqp->name_len, "CONIN$", sizeof("CONIN$"));
+ else if (u->unit_number == options.stdout_unit)
+ fstrcpy (iqp->name, iqp->name_len, "CONOUT$", sizeof("CONOUT$"));
+ else if (u->unit_number == options.stderr_unit)
+ fstrcpy (iqp->name, iqp->name_len, "CONERR$", sizeof("CONERR$"));
+ else
+ cf_strcpy (iqp->name, iqp->name_len, u->filename);
+#else
+ cf_strcpy (iqp->name, iqp->name_len, u->filename);
+#endif
+ }
if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
{
{
case ACCESS_DIRECT:
case ACCESS_STREAM:
- p = "NO";
+ p = no;
break;
case ACCESS_SEQUENTIAL:
- p = "YES";
+ p = yes;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad access");
{
case ACCESS_SEQUENTIAL:
case ACCESS_STREAM:
- p = "NO";
+ p = no;
break;
case ACCESS_DIRECT:
- p = "YES";
+ p = yes;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad access");
switch (u->flags.form)
{
case FORM_FORMATTED:
- p = "YES";
+ p = yes;
break;
case FORM_UNFORMATTED:
- p = "NO";
+ p = no;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad form");
switch (u->flags.form)
{
case FORM_FORMATTED:
- p = "NO";
+ p = no;
break;
case FORM_UNFORMATTED:
- p = "YES";
+ p = yes;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad form");
}
if ((cf & IOPARM_INQUIRE_HAS_RECL_OUT) != 0)
- *iqp->recl_out = (u != NULL) ? u->recl : 0;
+ /* F2018 (N2137) 12.10.2.26: If there is no connection, recl is
+ assigned the value -1. */
+ *iqp->recl_out = (u != NULL) ? u->recl : -1;
if ((cf & IOPARM_INQUIRE_HAS_STRM_POS_OUT) != 0)
*iqp->strm_pos_out = (u != NULL) ? u->strm_pos : 0;
switch (u->flags.pad)
{
case PAD_YES:
- p = "YES";
+ p = yes;
break;
case PAD_NO:
- p = "NO";
+ p = no;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
cf_strcpy (iqp->pad, iqp->pad_len, p);
}
- if ((cf2 & IOPARM_INQUIRE_HAS_PENDING) != 0)
- *iqp->pending = 0;
-
- if ((cf2 & IOPARM_INQUIRE_HAS_ID) != 0)
- *iqp->id = 0;
-
- if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+ if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
{
- if (u == NULL || u->flags.form != FORM_FORMATTED)
- p = undefined;
- else
- switch (u->flags.encoding)
- {
- case ENCODING_DEFAULT:
- p = "UNKNOWN";
- break;
- /* TODO: Enable UTF-8 case here when implemented.
- case ENCODING_UTF8:
- p = "UTF-8";
- break; */
- default:
- internal_error (&iqp->common, "inquire_via_unit(): Bad encoding");
- }
+ GFC_INTEGER_4 cf2 = iqp->flags2;
- cf_strcpy (iqp->encoding, iqp->encoding_len, p);
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_PENDING) != 0)
+ *iqp->pending = 0;
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_ID) != 0)
+ *iqp->id = 0;
- if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
- {
- if (u == NULL || u->flags.form != FORM_FORMATTED)
- p = undefined;
- else
- switch (u->flags.decimal)
- {
- case DECIMAL_POINT:
- p = "POINT";
- break;
- case DECIMAL_COMMA:
- p = "COMMA";
- break;
- default:
- internal_error (&iqp->common, "inquire_via_unit(): Bad comma");
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.encoding)
+ {
+ case ENCODING_DEFAULT:
+ p = "UNKNOWN";
+ break;
+ case ENCODING_UTF8:
+ p = "UTF-8";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad encoding");
+ }
+
+ cf_strcpy (iqp->encoding, iqp->encoding_len, p);
+ }
- cf_strcpy (iqp->decimal, iqp->decimal_len, p);
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.decimal)
+ {
+ case DECIMAL_POINT:
+ p = "POINT";
+ break;
+ case DECIMAL_COMMA:
+ p = "COMMA";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad comma");
+ }
+
+ cf_strcpy (iqp->decimal, iqp->decimal_len, p);
+ }
- if ((cf2 & IOPARM_INQUIRE_HAS_ASYNCHRONOUS) != 0)
- {
- if (u == NULL)
- p = undefined;
- else
- switch (u->flags.async)
- {
- case ASYNC_YES:
- p = "YES";
- break;
- case ASYNC_NO:
- p = "NO";
- break;
- default:
- internal_error (&iqp->common, "inquire_via_unit(): Bad async");
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_ASYNCHRONOUS) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.async)
+ {
+ case ASYNC_YES:
+ p = yes;
+ break;
+ case ASYNC_NO:
+ p = no;
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad async");
+ }
+
+ cf_strcpy (iqp->asynchronous, iqp->asynchronous_len, p);
+ }
- cf_strcpy (iqp->asynchronous, iqp->asynchronous_len, p);
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_SIGN) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.sign)
+ {
+ case SIGN_PROCDEFINED:
+ p = "PROCESSOR_DEFINED";
+ break;
+ case SIGN_SUPPRESS:
+ p = "SUPPRESS";
+ break;
+ case SIGN_PLUS:
+ p = "PLUS";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad sign");
+ }
+
+ cf_strcpy (iqp->sign, iqp->sign_len, p);
+ }
- if ((cf2 & IOPARM_INQUIRE_HAS_SIGN) != 0)
- {
- if (u == NULL)
- p = undefined;
- else
- switch (u->flags.sign)
- {
- case SIGN_PROCDEFINED:
- p = "PROCESSOR_DEFINED";
- break;
- case SIGN_SUPPRESS:
- p = "SUPPRESS";
- break;
- case SIGN_PLUS:
- p = "PLUS";
- break;
- default:
- internal_error (&iqp->common, "inquire_via_unit(): Bad sign");
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_ROUND) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.round)
+ {
+ case ROUND_UP:
+ p = "UP";
+ break;
+ case ROUND_DOWN:
+ p = "DOWN";
+ break;
+ case ROUND_ZERO:
+ p = "ZERO";
+ break;
+ case ROUND_NEAREST:
+ p = "NEAREST";
+ break;
+ case ROUND_COMPATIBLE:
+ p = "COMPATIBLE";
+ break;
+ case ROUND_PROCDEFINED:
+ p = "PROCESSOR_DEFINED";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad round");
+ }
+
+ cf_strcpy (iqp->round, iqp->round_len, p);
+ }
- cf_strcpy (iqp->sign, iqp->sign_len, p);
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_SIZE) != 0)
+ {
+ if (u == NULL)
+ *iqp->size = -1;
+ else
+ {
+ sflush (u->s);
+ *iqp->size = ssize (u->s);
+ }
+ }
- if ((cf2 & IOPARM_INQUIRE_HAS_ROUND) != 0)
- {
- if (u == NULL)
- p = undefined;
- else
- switch (u->flags.round)
- {
- case ROUND_UP:
- p = "UP";
- break;
- case ROUND_DOWN:
- p = "DOWN";
- break;
- case ROUND_ZERO:
- p = "ZERO";
- break;
- case ROUND_NEAREST:
- p = "NEAREST";
- break;
- case ROUND_COMPATIBLE:
- p = "COMPATIBLE";
- break;
- case ROUND_PROCDEFINED:
- p = "PROCESSOR_DEFINED";
- break;
- default:
- internal_error (&iqp->common, "inquire_via_unit(): Bad round");
- }
+ if ((cf2 & IOPARM_INQUIRE_HAS_IQSTREAM) != 0)
+ {
+ if (u == NULL)
+ p = "UNKNOWN";
+ else
+ switch (u->flags.access)
+ {
+ case ACCESS_SEQUENTIAL:
+ case ACCESS_DIRECT:
+ p = no;
+ break;
+ case ACCESS_STREAM:
+ p = yes;
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
+ }
+
+ cf_strcpy (iqp->iqstream, iqp->iqstream_len, p);
+ }
- cf_strcpy (iqp->round, iqp->round_len, p);
+ if ((cf2 & IOPARM_INQUIRE_HAS_SHARE) != 0)
+ {
+ if (u == NULL)
+ p = "UNKNOWN";
+ else
+ switch (u->flags.share)
+ {
+ case SHARE_DENYRW:
+ p = "DENYRW";
+ break;
+ case SHARE_DENYNONE:
+ p = "DENYNONE";
+ break;
+ case SHARE_UNSPECIFIED:
+ p = "NODENY";
+ break;
+ default:
+ internal_error (&iqp->common,
+ "inquire_via_unit(): Bad share");
+ break;
+ }
+
+ cf_strcpy (iqp->share, iqp->share_len, p);
+ }
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_CC) != 0)
+ {
+ if (u == NULL)
+ p = "UNKNOWN";
+ else
+ switch (u->flags.cc)
+ {
+ case CC_FORTRAN:
+ p = "FORTRAN";
+ break;
+ case CC_LIST:
+ p = "LIST";
+ break;
+ case CC_NONE:
+ p = "NONE";
+ break;
+ case CC_UNSPECIFIED:
+ p = "UNKNOWN";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad cc");
+ break;
+ }
+
+ cf_strcpy (iqp->cc, iqp->cc_len, p);
+ }
}
if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
if (u == NULL || u->flags.access == ACCESS_DIRECT)
p = undefined;
else
- switch (u->flags.position)
- {
- case POSITION_REWIND:
- p = "REWIND";
- break;
- case POSITION_APPEND:
- p = "APPEND";
- break;
- case POSITION_ASIS:
- p = "ASIS";
- break;
- default:
- /* if not direct access, it must be
- either REWIND, APPEND, or ASIS.
- ASIS seems to be the best default */
- p = "ASIS";
- break;
- }
+ {
+ /* If the position is unspecified, check if we can figure
+ out whether it's at the beginning or end. */
+ if (u->flags.position == POSITION_UNSPECIFIED)
+ {
+ gfc_offset cur = stell (u->s);
+ if (cur == 0)
+ u->flags.position = POSITION_REWIND;
+ else if (cur != -1 && (ssize (u->s) == cur))
+ u->flags.position = POSITION_APPEND;
+ }
+ switch (u->flags.position)
+ {
+ case POSITION_REWIND:
+ p = "REWIND";
+ break;
+ case POSITION_APPEND:
+ p = "APPEND";
+ break;
+ case POSITION_ASIS:
+ p = "ASIS";
+ break;
+ default:
+ /* If the position has changed and is not rewind or
+ append, it must be set to a processor-dependent
+ value. */
+ p = "UNSPECIFIED";
+ break;
+ }
+ }
cf_strcpy (iqp->position, iqp->position_len, p);
}
if ((cf & IOPARM_INQUIRE_HAS_READ) != 0)
{
- p = (u == NULL) ? inquire_read (NULL, 0) :
- inquire_read (u->file, u->file_len);
-
+ p = (!u || u->flags.action == ACTION_WRITE) ? no : yes;
cf_strcpy (iqp->read, iqp->read_len, p);
}
if ((cf & IOPARM_INQUIRE_HAS_WRITE) != 0)
{
- p = (u == NULL) ? inquire_write (NULL, 0) :
- inquire_write (u->file, u->file_len);
-
+ p = (!u || u->flags.action == ACTION_READ) ? no : yes;
cf_strcpy (iqp->write, iqp->write_len, p);
}
if ((cf & IOPARM_INQUIRE_HAS_READWRITE) != 0)
{
- p = (u == NULL) ? inquire_readwrite (NULL, 0) :
- inquire_readwrite (u->file, u->file_len);
-
+ p = (!u || u->flags.action != ACTION_READWRITE) ? no : yes;
cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
}
switch (u->flags.delim)
{
case DELIM_NONE:
+ case DELIM_UNSPECIFIED:
p = "NONE";
break;
case DELIM_QUOTE:
switch (u->flags.pad)
{
case PAD_NO:
- p = "NO";
+ p = no;
break;
case PAD_YES:
- p = "YES";
+ p = yes;
break;
default:
internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
else
switch (u->flags.convert)
{
- /* l8_to_l4_offset is 0 for little-endian, 1 for big-endian. */
case GFC_CONVERT_NATIVE:
- p = l8_to_l4_offset ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
+ p = __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
break;
case GFC_CONVERT_SWAP:
- p = l8_to_l4_offset ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
+ p = __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
break;
default:
/* inquire_via_filename()-- Inquiry via filename. This subroutine is
- * only used if the filename is *not* connected to a unit number. */
+ only used if the filename is *not* connected to a unit number. */
static void
inquire_via_filename (st_parameter_inquire *iqp)
{
const char *p;
GFC_INTEGER_4 cf = iqp->common.flags;
- GFC_INTEGER_4 cf2 = iqp->flags2;
if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
*iqp->exist = file_exists (iqp->file, iqp->file_len);
if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
cf_strcpy (iqp->pad, iqp->pad_len, undefined);
- if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
- cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
+ if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
+ {
+ GFC_INTEGER_4 cf2 = iqp->flags2;
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+ cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
- if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
- cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+ if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
+ cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
+ cf_strcpy (iqp->decimal, iqp->decimal_len, undefined);
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
+ cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_PAD) != 0)
+ cf_strcpy (iqp->pad, iqp->pad_len, undefined);
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+ cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_SIZE) != 0)
+ *iqp->size = file_size (iqp->file, iqp->file_len);
- if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
- cf_strcpy (iqp->decimal, iqp->decimal_len, undefined);
+ if ((cf2 & IOPARM_INQUIRE_HAS_IQSTREAM) != 0)
+ cf_strcpy (iqp->iqstream, iqp->iqstream_len, "UNKNOWN");
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_SHARE) != 0)
+ cf_strcpy (iqp->share, iqp->share_len, "UNKNOWN");
+
+ if ((cf2 & IOPARM_INQUIRE_HAS_CC) != 0)
+ cf_strcpy (iqp->cc, iqp->cc_len, "UNKNOWN");
+ }
if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
cf_strcpy (iqp->position, iqp->position_len, undefined);
p = inquire_read (iqp->file, iqp->file_len);
cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
}
-
- if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
- cf_strcpy (iqp->delim, iqp->delim_len, undefined);
-
- if ((cf2 & IOPARM_INQUIRE_HAS_PAD) != 0)
- cf_strcpy (iqp->pad, iqp->pad_len, undefined);
-
- if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
- cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
}
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