1  /* Reading C# .resources files.
       2     Copyright (C) 2003-2004, 2006-2008, 2010-2011, 2020 Free Software Foundation, Inc.
       3     Written by Bruno Haible <bruno@clisp.org>, 2003.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation; either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #ifdef HAVE_CONFIG_H
      19  # include <config.h>
      20  #endif
      21  
      22  /* Specification.  */
      23  #include "read-resources.h"
      24  
      25  #include <errno.h>
      26  #include <stdbool.h>
      27  #include <stdlib.h>
      28  #include <stdio.h>
      29  
      30  #include "msgunfmt.h"
      31  #include "relocatable.h"
      32  #include "csharpexec.h"
      33  #include "spawn-pipe.h"
      34  #include "wait-process.h"
      35  #include "read-catalog.h"
      36  #include "read-po.h"
      37  #include "message.h"
      38  #include "concat-filename.h"
      39  #include "error.h"
      40  #include "gettext.h"
      41  
      42  #define _(str) gettext (str)
      43  
      44  
      45  /* A .resources file has such a complex format that it's most easily read
      46     through the C# class ResourceReader.  So we start a C# process to execute
      47     the DumpResource program, and read its output, which is .po format without
      48     comments.  */
      49  
      50  struct locals
      51  {
      52    /* OUT */
      53    msgdomain_list_ty *mdlp;
      54  };
      55  
      56  static bool
      57  execute_and_read_po_output (const char *progname,
      58                              const char *prog_path,
      59                              const char * const *prog_argv,
      60                              void *private_data)
      61  {
      62    struct locals *l = (struct locals *) private_data;
      63    pid_t child;
      64    int fd[1];
      65    FILE *fp;
      66    int exitstatus;
      67  
      68    /* Open a pipe to the C# execution engine.  */
      69    child = create_pipe_in (progname, prog_path, prog_argv, NULL,
      70                            NULL, false, true, true, fd);
      71  
      72    fp = fdopen (fd[0], "r");
      73    if (fp == NULL)
      74      error (EXIT_FAILURE, errno, _("fdopen() failed"));
      75  
      76    /* Read the message list.  */
      77    l->mdlp = read_catalog_stream (fp, "(pipe)", "(pipe)", &input_format_po);
      78  
      79    fclose (fp);
      80  
      81    /* Remove zombie process from process list, and retrieve exit status.  */
      82    exitstatus =
      83      wait_subprocess (child, progname, false, false, true, true, NULL);
      84    if (exitstatus != 0)
      85      error (EXIT_FAILURE, 0, _("%s subprocess failed with exit code %d"),
      86             progname, exitstatus);
      87  
      88    return false;
      89  }
      90  
      91  
      92  void
      93  read_resources_file (message_list_ty *mlp, const char *filename)
      94  {
      95    const char *args[2];
      96    const char *gettextexedir;
      97    const char *gettextlibdir;
      98    char *assembly_path;
      99    const char *libdirs[1];
     100    struct locals locals;
     101  
     102    /* Prepare arguments.  */
     103    args[0] = filename;
     104    args[1] = NULL;
     105  
     106    /* Make it possible to override the .exe location.  This is
     107       necessary for running the testsuite before "make install".  */
     108    gettextexedir = getenv ("GETTEXTCSHARPEXEDIR");
     109    if (gettextexedir == NULL || gettextexedir[0] == '\0')
     110      gettextexedir = relocate (LIBDIR "/gettext");
     111  
     112    /* Make it possible to override the .dll location.  This is
     113       necessary for running the testsuite before "make install".  */
     114    gettextlibdir = getenv ("GETTEXTCSHARPLIBDIR");
     115    if (gettextlibdir == NULL || gettextlibdir[0] == '\0')
     116      gettextlibdir = relocate (LIBDIR);
     117  
     118    /* Dump the resource and retrieve the resulting output.  */
     119    assembly_path =
     120      xconcatenated_filename (gettextexedir, "msgunfmt.net", ".exe");
     121    libdirs[0] = gettextlibdir;
     122    if (execute_csharp_program (assembly_path, libdirs, 1,
     123                                args,
     124                                verbose, false,
     125                                execute_and_read_po_output, &locals))
     126      /* An error message should already have been provided.  */
     127      exit (EXIT_FAILURE);
     128  
     129    /* Add the output to mlp.  */
     130    {
     131      message_list_ty *read_mlp = locals.mdlp->item[0]->messages;
     132      size_t j;
     133  
     134      for (j = 0; j < read_mlp->nitems; j++)
     135        message_list_append (mlp, read_mlp->item[j]);
     136    }
     137  
     138    free (assembly_path);
     139  }