gnu/dist/gettext/gettext-tools/lib/csharpexec.c

   1 /* Execute a C# program.
   2    Copyright (C) 2003-2004 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 2, or (at your option)
   8    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, write to the Free Software Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22 #include <alloca.h>
  23
  24 /* Specification.  */
  25 #include "csharpexec.h"
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29
  30 #include "execute.h"
  31 #include "sh-quote.h"
  32 #include "xallocsa.h"
  33 #include "error.h"
  34 #include "gettext.h"
  35
  36 /* Handling of MONO_PATH is just like Java CLASSPATH.  */
  37 #define CLASSPATHVAR "MONO_PATH"
  38 #define new_classpath new_monopath
  39 #define set_classpath set_monopath
  40 #define reset_classpath reset_monopath
  41 #include "classpath.h"
  42 #include "classpath.c"
  43
  44 #define _(str) gettext (str)
  45
  46
  47 /* Survey of CIL interpreters.
  48
  49    Program    from
  50
  51    ilrun      pnet
  52    mono       mono
  53
  54    With Mono, the MONO_PATH is a colon separated list of pathnames. (On
  55    Windows: semicolon separated list of pathnames.)
  56
  57    We try the CIL interpreters in the following order:
  58      1. "ilrun", because it is a completely free system.
  59      2. "mono", because it is a partially free system but doesn't integrate
  60         well with Unix.
  61    But the order can be changed through the --enable-csharp configuration
  62    option.
  63  */
  64
  65 static int
  66 execute_csharp_using_pnet (const char *assembly_path,
  67                            const char * const *libdirs,
  68                            unsigned int libdirs_count,
  69                            const char * const *args, unsigned int nargs,
  70                            bool verbose, bool quiet,
  71                            execute_fn *executer, void *private_data)
  72 {
  73   static bool ilrun_tested;
  74   static bool ilrun_present;
  75
  76   if (!ilrun_tested)
  77     {
  78       /* Test for presence of ilrun:
  79          "ilrun --version >/dev/null 2>/dev/null"  */
  80       char *argv[3];
  81       int exitstatus;
  82
  83       argv[0] = "ilrun";
  84       argv[1] = "--version";
  85       argv[2] = NULL;
  86       exitstatus = execute ("ilrun", "ilrun", argv, false, false, true, true,
  87                             true, false);
  88       ilrun_present = (exitstatus == 0);
  89       ilrun_tested = true;
  90     }
  91
  92   if (ilrun_present)
  93     {
  94       unsigned int argc;
  95       char **argv;
  96       char **argp;
  97       unsigned int i;
  98       bool err;
  99
 100       argc = 1 + 2 * libdirs_count + 1 + nargs;
 101       argv = (char **) xallocsa ((argc + 1) * sizeof (char *));
 102
 103       argp = argv;
 104       *argp++ = "ilrun";
 105       for (i = 0; i < libdirs_count; i++)
 106         {
 107           *argp++ = "-L";
 108           *argp++ = (char *) libdirs[i];
 109         }
 110       *argp++ = (char *) assembly_path;
 111       for (i = 0; i < nargs; i++)
 112         *argp++ = (char *) args[i];
 113       *argp = NULL;
 114       /* Ensure argv length was correctly calculated.  */
 115       if (argp - argv != argc)
 116         abort ();
 117
 118       if (verbose)
 119         {
 120           char *command = shell_quote_argv (argv);
 121           printf ("%s\n", command);
 122           free (command);
 123         }
 124
 125       err = executer ("ilrun", "ilrun", argv, private_data);
 126
 127       freesa (argv);
 128
 129       return err;
 130     }
 131   else
 132     return -1;
 133 }
 134
 135 static int
 136 execute_csharp_using_mono (const char *assembly_path,
 137                            const char * const *libdirs,
 138                            unsigned int libdirs_count,
 139                            const char * const *args, unsigned int nargs,
 140                            bool verbose, bool quiet,
 141                            execute_fn *executer, void *private_data)
 142 {
 143   static bool mono_tested;
 144   static bool mono_present;
 145
 146   if (!mono_tested)
 147     {
 148       /* Test for presence of mono:
 149          "mono --version >/dev/null 2>/dev/null"  */
 150       char *argv[3];
 151       int exitstatus;
 152
 153       argv[0] = "mono";
 154       argv[1] = "--version";
 155       argv[2] = NULL;
 156       exitstatus = execute ("mono", "mono", argv, false, false, true, true,
 157                             true, false);
 158       mono_present = (exitstatus == 0);
 159       mono_tested = true;
 160     }
 161
 162   if (mono_present)
 163     {
 164       char *old_monopath;
 165       char **argv = (char **) xallocsa ((2 + nargs + 1) * sizeof (char *));
 166       unsigned int i;
 167       bool err;
 168
 169       /* Set MONO_PATH.  */
 170       old_monopath = set_monopath (libdirs, libdirs_count, false, verbose);
 171
 172       argv[0] = "mono";
 173       argv[1] = (char *) assembly_path;
 174       for (i = 0; i <= nargs; i++)
 175         argv[2 + i] = (char *) args[i];
 176
 177       if (verbose)
 178         {
 179           char *command = shell_quote_argv (argv);
 180           printf ("%s\n", command);
 181           free (command);
 182         }
 183
 184       err = executer ("mono", "mono", argv, private_data);
 185
 186       /* Reset MONO_PATH.  */
 187       reset_monopath (old_monopath);
 188
 189       freesa (argv);
 190
 191       return err;
 192     }
 193   else
 194     return -1;
 195 }
 196
 197 bool
 198 execute_csharp_program (const char *assembly_path,
 199                         const char * const *libdirs,
 200                         unsigned int libdirs_count,
 201                         const char * const *args,
 202                         bool verbose, bool quiet,
 203                         execute_fn *executer, void *private_data)
 204 {
 205   unsigned int nargs;
 206   int result;
 207
 208   /* Count args.  */
 209   {
 210     const char * const *arg;
 211
 212     for (nargs = 0, arg = args; *arg != NULL; nargs++, arg++)
 213      ;
 214   }
 215
 216   /* First try the C# implementation specified through --enable-csharp.  */
 217 #if CSHARP_CHOICE_PNET
 218   result = execute_csharp_using_pnet (assembly_path, libdirs, libdirs_count,
 219                                       args, nargs, verbose, quiet,
 220                                       executer, private_data);
 221   if (result >= 0)
 222     return (bool) result;
 223 #endif
 224
 225 #if CSHARP_CHOICE_MONO
 226   result = execute_csharp_using_mono (assembly_path, libdirs, libdirs_count,
 227                                       args, nargs, verbose, quiet,
 228                                       executer, private_data);
 229   if (result >= 0)
 230     return (bool) result;
 231 #endif
 232
 233   /* Then try the remaining C# implementations in our standard order.  */
 234 #if !CSHARP_CHOICE_PNET
 235   result = execute_csharp_using_pnet (assembly_path, libdirs, libdirs_count,
 236                                       args, nargs, verbose, quiet,
 237                                       executer, private_data);
 238   if (result >= 0)
 239     return (bool) result;
 240 #endif
 241
 242 #if !CSHARP_CHOICE_MONO
 243   result = execute_csharp_using_mono (assembly_path, libdirs, libdirs_count,
 244                                       args, nargs, verbose, quiet,
 245                                       executer, private_data);
 246   if (result >= 0)
 247     return (bool) result;
 248 #endif
 249
 250   if (!quiet)
 251     error (0, 0, _("C# virtual machine not found, try installing pnet"));
 252   return true;
 253 }