pc-tools/ldc2/src/config.cpp

   1 /*
   2  * Program configuration management
   3  */
   4
   5 #include <vector>
   6 #include <string>
   7
   8 #include <stdio.h>
   9 #include <unistd.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <fcntl.h>
  13
  14 #include "configuration_manager.hh"
  15 #include "tool.hh"
  16
  17 /* Global configuration data */
  18 string cfg_infile;
  19 string cfg_outfile;
  20 int cfg_infile_set=0;
  21 int cfg_outfile_set=0;
  22 int cfg_config_file_set=0;
  23
  24 int cfg_do_help=0;
  25 int cfg_output_info=0;
  26 int cfg_output_called=0;
  27 int cfg_output_exported=0;
  28 int cfg_output_unsatisfied=0;
  29 int cfg_split_objects=0;
  30 int cfg_split_objects_numbered=0;
  31 int cfg_ignore_block_errors=0;
  32 int cfg_ignore_checksum_errors=0;
  33 int cfg_pause_on_checksum_error=0;
  34 int cfg_ignore_unknown_block_errors=0;
  35 int cfg_ignore_object_integrity_errors=0;
  36 int cfg_list_contents=1;
  37 int cfg_verbose=0;
  38 int cfg_quiet=0;
  39
  40 int cfg_version=0;
  41
  42 int in_fd=0;  //! File descriptor for data input
  43 int out_fd=2; //! File descriptor for text output
  44
  45 void do_config(int argc, char ** args){
  46
  47   string cfg_config_file;
  48   configuration_manager ar("ldc2");
  49
  50   /* Here come the configuration switches */
  51   ar.add_option_switch("h","help",
  52                        "Output this help text and exit.",
  53                        &cfg_do_help,false,true);
  54
  55   ar.add_option_switch("a","output_info",
  56                        "Print tape data information",
  57                        &cfg_output_info,true,true);
  58
  59   ar.add_option_switch("c","output_called",
  60                        "Print all called symbols from the object(s).",
  61                        &cfg_output_called,true,true);
  62
  63   ar.add_option_switch("e","output_exported",
  64                        "Print all exported symbols from the object(s).",
  65                        &cfg_output_exported,true,true);
  66
  67   ar.add_option_switch("u","output_unsatisfied",
  68                        "List all unsatisfied symbols.",
  69                        &cfg_output_unsatisfied,true,true);
  70
  71   ar.add_option_switch("S","split_objects_numbered",
  72                        "Split input data into distinct numbered files",
  73                        &cfg_split_objects_numbered,true,true);
  74
  75   ar.add_option_switch("s","split_objects",
  76                        "Split input data into distinct object files.",
  77                        &cfg_split_objects,true,true);
  78
  79   ar.add_option_switch("b","ignore_block_errors",
  80                        "Ignore block integrity errors. This will output broken blocks,too",
  81                        &cfg_ignore_block_errors,true,true);
  82
  83   ar.add_option_switch("k","ignore_checksum_errors",
  84                        "Ignore block checksum errors. Errors will be converted to warnings.",
  85                        &cfg_ignore_checksum_errors,true,true);
  86
  87   ar.add_option_switch("p","pause_on_checksum_error",
  88                        "Wait for user input on checksum error.",
  89                        &cfg_pause_on_checksum_error,true,true);
  90
  91   ar.add_option_switch("n","ignore_unknown_block_errors",
  92                        "Ignore errors caused by unknown block types. Errors will be converted to warnings.",
  93                        &cfg_ignore_unknown_block_errors,true,true);
  94
  95   ar.add_option_switch("g","ignore_object_integrity_errors",
  96                        "Ignore errors caused by objects without proper end block. \
  97 Errors will be converted to warnings.",
  98                        &cfg_ignore_object_integrity_errors,true,true);
  99
 100   ar.add_option_switch("v","verbose",
 101                        "Be a bit more verbose. This overrides -q.",
 102                        &cfg_verbose,true,true);
 103
 104   ar.add_option_switch("q","quiet",
 105                        "Be quiet. All warning messages are suppressed.",
 106                        &cfg_quiet,true,true);
 107
 108   ar.add_option_switch("V","version",
 109                        "Output version information and exit.",
 110                        &cfg_version,false,true);
 111
 112   ar.add_option_value("i","in_file",
 113                       "specify input file",
 114                   &cfg_infile_set,&cfg_infile,
 115                       "<input-file>",true,false);
 116
 117   ar.add_option_value("o","out_file",
 118                       "Specify output file.",
 119                       &cfg_outfile_set,&cfg_outfile,
 120                       "<output_file>",true,true);
 121
 122   ar.add_argument("File from where data is read",
 123                   &cfg_infile_set,&cfg_infile,
 124                   "<input-file>");
 125
 126   ar.add_argument("File to where output is redirected",
 127                   &cfg_outfile_set,&cfg_outfile,
 128                   "<output-file>");
 129
 130   ar.add_option_value("F","cfg_config_file",
 131                       "Use the specified configuration file.",
 132                       &cfg_config_file_set,&cfg_config_file,
 133                       "<file-name>",false,true);
 134
 135
 136   // If there's a config file mentioned in the environment, take it!
 137   char * env_ldc_config=getenv("LDC_CONFIG");
 138   if(env_ldc_config){
 139     if (cfg_verbose) fprintf(stderr,"Using config file: \"%s\"\n",env_ldc_config);
 140     if(dump_vector_fp(ar.read_file(env_ldc_config),stderr)){
 141       dump_vector_fp(ar.get_help(),stderr);
 142       exit(1);
 143     }
 144   }
 145
 146   // Process command line first time
 147   if(dump_vector_fp(ar.read_args(argc,args),stderr)){
 148     dump_vector_fp(ar.get_help(),stderr);
 149     exit(7);
 150   }
 151
 152   if (cfg_do_help) {
 153     dump_vector_fp(ar.get_help(),stderr);
 154     exit(0);
 155   }
 156
 157   // If user has a config file, use it.
 158   if (cfg_config_file_set){
 159     if (cfg_verbose)
 160       fprintf(stderr,"Using config file: \"%s\"\n",cfg_config_file.c_str());
 161     if(dump_vector_fp(ar.read_file(cfg_config_file),stderr)){
 162       dump_vector_fp(ar.get_help(),stderr);
 163       exit(7);
 164     }
 165
 166     // Process command line a second time to override values from config file.
 167     if(dump_vector_fp(ar.read_args(argc,args),stderr)||cfg_do_help){
 168       dump_vector_fp(ar.get_help(),stderr);
 169       exit(7);
 170     }
 171   }
 172
 173   if (cfg_infile_set==1){
 174     if (cfg_verbose)
 175       fprintf(stderr,"Opening file for input: \"%s\"\n",cfg_infile.c_str());
 176     in_fd=open(cfg_infile.c_str(),O_RDONLY);
 177     if (in_fd<0){
 178       fprintf(stderr,"Error: could not open file \"%s\" for reading!\n",
 179               cfg_infile.c_str());
 180       exit (1);
 181     }
 182   }
 183
 184   if (cfg_outfile_set==1){
 185     if (cfg_verbose)
 186       fprintf(stderr,"Opening file for output: \"%s\"\n",cfg_outfile.c_str());
 187     out_fd=open(cfg_outfile.c_str(),O_CREAT|O_WRONLY|O_TRUNC,0666);
 188     if (out_fd<0){
 189       fprintf(stderr,"Error: could not open file \"%s\" for writing!\n",
 190               cfg_outfile.c_str());
 191       exit (1);
 192     }
 193   }
 194
 195   // Verbose overrides quiet:
 196   if (cfg_verbose)cfg_quiet=0;
 197
 198   // The configuration implications according to /cfg007/
 199   if (in_fd==0) cfg_pause_on_checksum_error=0;
 200   if (cfg_pause_on_checksum_error==1) cfg_ignore_checksum_errors=1;
 201
 202   if (cfg_output_info||cfg_output_called||cfg_output_exported||
 203       cfg_output_unsatisfied||
 204       cfg_split_objects||cfg_split_objects_numbered)
 205     cfg_list_contents=0;
 206 }
 207
 208