OSDN Git Service

2010-08-14 Jerry DeLisle <jvdelisle@gcc.gnu.org>
[pf3gnuchains/gcc-fork.git] / libgfortran / io / inquire.c
index 84f4683..c4994ed 100644 (file)
@@ -1,36 +1,34 @@
-/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005, 2007, 2009, 2010
+   Free Software Foundation, Inc.
    Contributed by Andy Vaught
 
 This file is part of the GNU Fortran 95 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";
@@ -45,7 +43,18 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
   GFC_INTEGER_4 cf = iqp->common.flags;
 
   if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
-    *iqp->exist = iqp->common.unit >= 0;
+    {
+      *iqp->exist = (iqp->common.unit >= 0
+                    && iqp->common.unit <= GFC_INTEGER_4_HUGE);
+
+      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_OPENED) != 0)
     *iqp->opened = (u != NULL);
@@ -58,7 +67,36 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
 
   if ((cf & IOPARM_INQUIRE_HAS_NAME) != 0
       && u != NULL && u->flags.status != STATUS_SCRATCH)
+    {
+#ifdef HAVE_TTYNAME
+      if (u->unit_number == options.stdin_unit
+         || u->unit_number == options.stdout_unit
+         || u->unit_number == options.stderr_unit)
+       {
+         char * tmp = ttyname (((unix_stream *) u->s)->fd);
+         if (tmp != NULL)
+           {
+             int tmplen = strlen (tmp);
+             fstrcpy (iqp->name, iqp->name_len, tmp, tmplen);
+           }
+         else /* If ttyname does not work, go with the default.  */
+           fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
+       }
+      else
+       fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
+#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
+       fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
+#else
     fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
+#endif
+    }
 
   if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
     {
@@ -88,21 +126,39 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
       if (u == NULL)
        p = inquire_sequential (NULL, 0);
       else
-       {
-          /* disallow an open direct access file to be accessed sequentially */
-          if (u->flags.access == ACCESS_DIRECT)
-            p = "NO";
-          else   
-            p = inquire_sequential (u->file, u->file_len);
-       }
+       switch (u->flags.access)
+         {
+         case ACCESS_DIRECT:
+         case ACCESS_STREAM:
+           p = "NO";
+           break;
+         case ACCESS_SEQUENTIAL:
+           p = "YES";
+           break;
+         default:
+           internal_error (&iqp->common, "inquire_via_unit(): Bad access");
+         }
 
       cf_strcpy (iqp->sequential, iqp->sequential_len, p);
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
     {
-      p = (u == NULL) ? inquire_direct (NULL, 0) :
-       inquire_direct (u->file, u->file_len);
+      if (u == NULL)
+       p = inquire_direct (NULL, 0);
+      else
+       switch (u->flags.access)
+         {
+         case ACCESS_SEQUENTIAL:
+         case ACCESS_STREAM:
+           p = "NO";
+           break;
+         case ACCESS_DIRECT:
+           p = "YES";
+           break;
+         default:
+           internal_error (&iqp->common, "inquire_via_unit(): Bad access");
+         }
 
       cf_strcpy (iqp->direct, iqp->direct_len, p);
     }
@@ -129,16 +185,40 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
 
   if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
     {
-      p = (u == NULL) ? inquire_formatted (NULL, 0) :
-       inquire_formatted (u->file, u->file_len);
+      if (u == NULL)
+       p = inquire_formatted (NULL, 0);
+      else
+       switch (u->flags.form)
+         {
+         case FORM_FORMATTED:
+           p = "YES";
+           break;
+         case FORM_UNFORMATTED:
+           p = "NO";
+           break;
+         default:
+           internal_error (&iqp->common, "inquire_via_unit(): Bad form");
+         }
 
       cf_strcpy (iqp->formatted, iqp->formatted_len, p);
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
     {
-      p = (u == NULL) ? inquire_unformatted (NULL, 0) :
-       inquire_unformatted (u->file, u->file_len);
+      if (u == NULL)
+       p = inquire_unformatted (NULL, 0);
+      else
+       switch (u->flags.form)
+         {
+         case FORM_FORMATTED:
+           p = "NO";
+           break;
+         case FORM_UNFORMATTED:
+           p = "YES";
+           break;
+         default:
+           internal_error (&iqp->common, "inquire_via_unit(): Bad form");
+         }
 
       cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
     }
@@ -160,7 +240,7 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
 
   if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
     {
-      if (u == NULL)
+      if (u == NULL || u->flags.form != FORM_FORMATTED)
        p = undefined;
       else
        switch (u->flags.blank)
@@ -178,6 +258,160 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
       cf_strcpy (iqp->blank, iqp->blank_len, p);
     }
 
+  if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+    {
+      if (u == NULL || u->flags.form != FORM_FORMATTED)
+       p = undefined;
+      else
+       switch (u->flags.pad)
+         {
+         case PAD_YES:
+           p = "YES";
+           break;
+         case PAD_NO:
+           p = "NO";
+           break;
+         default:
+           internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
+         }
+
+      cf_strcpy (iqp->pad, iqp->pad_len, p);
+    }
+
+  if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
+    {
+      GFC_INTEGER_4 cf2 = iqp->flags2;
+
+      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 (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);
+       }
+
+      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");
+           }
+
+         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_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);
+       }
+
+      if ((cf2 & IOPARM_INQUIRE_HAS_SIZE) != 0)
+       {
+         if (u == NULL)
+           *iqp->size = -1;
+         else
+           *iqp->size = file_size (u->file, (gfc_charlen_type) u->file_len);
+       }
+    }
+
   if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
     {
       if (u == NULL || u->flags.access == ACCESS_DIRECT)
@@ -301,13 +535,13 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
       else
        switch (u->flags.convert)
          {
-           /*  l8_to_l4_offset is 0 for little-endian, 1 for big-endian.  */
-         case CONVERT_NATIVE:
-           p = l8_to_l4_offset ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
+           /*  big_endian is 0 for little-endian, 1 for big-endian.  */
+         case GFC_CONVERT_NATIVE:
+           p = big_endian ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
            break;
 
-         case CONVERT_SWAP:
-           p = l8_to_l4_offset ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
+         case GFC_CONVERT_SWAP:
+           p = big_endian ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
            break;
 
          default:
@@ -348,13 +582,13 @@ inquire_via_filename (st_parameter_inquire *iqp)
 
   if ((cf & IOPARM_INQUIRE_HAS_SEQUENTIAL) != 0)
     {
-      p = inquire_sequential (iqp->file, iqp->file_len);
+      p = "UNKNOWN";
       cf_strcpy (iqp->sequential, iqp->sequential_len, p);
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
     {
-      p = inquire_direct (iqp->file, iqp->file_len);
+      p = "UNKNOWN";
       cf_strcpy (iqp->direct, iqp->direct_len, p);
     }
 
@@ -363,13 +597,13 @@ inquire_via_filename (st_parameter_inquire *iqp)
 
   if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
     {
-      p = inquire_formatted (iqp->file, iqp->file_len);
+      p = "UNKNOWN";
       cf_strcpy (iqp->formatted, iqp->formatted_len, p);
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
     {
-      p = inquire_unformatted (iqp->file, iqp->file_len);
+      p = "UNKNOWN";
       cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
     }
 
@@ -382,6 +616,35 @@ inquire_via_filename (st_parameter_inquire *iqp)
   if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
     cf_strcpy (iqp->blank, iqp->blank_len, undefined);
 
+  if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+    cf_strcpy (iqp->pad, iqp->pad_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_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 ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
     cf_strcpy (iqp->position, iqp->position_len, undefined);
 
@@ -405,12 +668,6 @@ inquire_via_filename (st_parameter_inquire *iqp)
       p = inquire_read (iqp->file, iqp->file_len);
       cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
     }
-
-  if ((cf & IOPARM_INQUIRE_HAS_DELIM) != 0)
-    cf_strcpy (iqp->delim, iqp->delim_len, undefined);
-
-  if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
-    cf_strcpy (iqp->pad, iqp->pad_len, undefined);
 }