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   1 /***************************************************************************
   2  *   Copyright (C) 2004, 2005 by Dominic Rath                              *
   3  *   Dominic.Rath@gmx.de                                                   *
   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 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, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "types.h"
  25 #include "command.h"
  26 #include "configuration.h"
  27 #include "log.h"
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 static size_t num_config_files;
  34 static char** config_file_names;
  35
  36 static size_t num_script_dirs;
  37 static char** script_search_dirs;
  38
  39 void add_script_search_dir (const char *dir)
  40 {
  41         num_script_dirs++;
  42         script_search_dirs = (char **)realloc(script_search_dirs, (num_script_dirs+1) * sizeof (char *));
  43
  44         script_search_dirs[num_script_dirs-1] = strdup(dir);
  45         script_search_dirs[num_script_dirs] = NULL;
  46 }
  47
  48 void add_config_command (const char *cfg)
  49 {
  50         num_config_files++;
  51         config_file_names = (char **)realloc(config_file_names, (num_config_files+1) * sizeof (char *));
  52
  53         config_file_names[num_config_files-1] = strdup(cfg);
  54         config_file_names[num_config_files] = NULL;
  55 }
  56
  57 /* return full path or NULL according to search rules */
  58 char *find_file(char *file)
  59 {
  60         FILE *fp = NULL;
  61         char **search_dirs = script_search_dirs;
  62         char *dir;
  63         char const *mode="r";
  64         char full_path[1024];
  65
  66         /* Check absolute and relative to current working dir first.
  67          * This keeps full_path reporting belowing working. */
  68         snprintf(full_path, 1024, "%s", file);
  69         fp = fopen(full_path, mode);
  70
  71         while (!fp)
  72         {
  73                 dir = *search_dirs++;
  74
  75                 if (!dir)
  76                         break;
  77
  78                 snprintf(full_path, 1024, "%s/%s", dir, file);
  79                 fp = fopen(full_path, mode);
  80         }
  81
  82         if (fp)
  83         {
  84                 fclose(fp);
  85                 LOG_DEBUG("found %s", full_path);
  86                 return strdup(full_path);
  87         }
  88         return NULL;
  89 }
  90
  91
  92 FILE *open_file_from_path (char *file, char *mode)
  93 {
  94         if (mode[0]!='r')
  95         {
  96                 return fopen(file, mode);
  97         } else
  98         {
  99                 char *full_path=find_file(file);
 100                 FILE *fp = NULL;
 101                 fp = fopen(full_path, mode);
 102                 free(full_path);
 103                 return fp;
 104         }
 105 }
 106
 107 int parse_config_file(struct command_context_s *cmd_ctx)
 108 {
 109         char **cfg;
 110
 111         if (!config_file_names)
 112                 add_config_command ("script openocd.cfg");
 113
 114         cfg = config_file_names;
 115
 116         while (*cfg)
 117         {
 118                 command_run_line(cmd_ctx, *cfg);
 119                 cfg++;
 120         }
 121
 122         return ERROR_OK;
 123 }