| 1 | /* ldc2 preliminary main program */ |
| 2 | |
| 3 | |
| 4 | #include <vector> |
| 5 | #include <string> |
| 6 | |
| 7 | #include "config.hh" |
| 8 | #include "tool.hh" |
| 9 | |
| 10 | #include "tape_block.hh" |
| 11 | #include "data_block_0.hh" |
| 12 | |
| 13 | using namespace std; |
| 14 | |
| 15 | #ifndef BUILD_STAMP |
| 16 | #define BUILD_STAMP "" |
| 17 | #endif |
| 18 | |
| 19 | #ifndef VERSION |
| 20 | #define VERSION "0.0" |
| 21 | #endif |
| 22 | |
| 23 | #define ID_STRING "\n ldc2 - The X16 object tape analyser\n\ |
| 24 | (C) 2007 Philipp Hachtmann\n\n\ |
| 25 | Version %s, built %s\n %s\n\n" |
| 26 | |
| 27 | /******************************************************************************/ |
| 28 | |
| 29 | static FILE * stdwarn; //! Suppressable warning output file pointer. |
| 30 | static vector<tape_block*> tape; //! Represents the whole tape contents. |
| 31 | static vector<vector<tape_block*> > objects; //! Tape content in objects. |
| 32 | |
| 33 | static int errors=0; |
| 34 | static int warnings=0; |
| 35 | static int errcode=0; //! Variable for error codes. |
| 36 | |
| 37 | |
| 38 | void exit_on_error(){ |
| 39 | if (errors){ |
| 40 | fprintf(stderr,"Failed. (%i)\n",errcode); |
| 41 | exit(errcode); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /******************************************************************************/ |
| 46 | /*! |
| 47 | *\brief Read in Tape data and do some checks and messages. |
| 48 | * |
| 49 | * This routine reads in the tape data. |
| 50 | * During reading in, checksums are checked and |
| 51 | * /da001/ information is generated. No object integrity test. |
| 52 | * Tape block object pointers are put into the global vector |
| 53 | * tape. |
| 54 | */ |
| 55 | void read_tape(){ |
| 56 | |
| 57 | tape_block * block=0; //! Pointer to current block. |
| 58 | bool read_ahead=true; //! Continue scanning for blocks. |
| 59 | int read_pointer=0; //! Read position in input. |
| 60 | int block_start=0; //! Start of block position in input. |
| 61 | int block_end=0; //! End of block position in input. |
| 62 | int blocks_read=0; //! Number of blocks read in. |
| 63 | |
| 64 | bool spaced=false; //! Help flag for spaced messages. |
| 65 | |
| 66 | string message; //! A warning or help message. |
| 67 | |
| 68 | |
| 69 | while(read_ahead){ |
| 70 | |
| 71 | bool err_checksum=false; |
| 72 | bool err_integrity=false; |
| 73 | |
| 74 | bool warning=false; |
| 75 | bool error=false; |
| 76 | |
| 77 | try{ |
| 78 | block=tape_block::gen_from_fd(in_fd); |
| 79 | } |
| 80 | |
| 81 | catch(tape_block::eof_legal_exception &e){ |
| 82 | read_pointer+=e.get_consumed(); |
| 83 | break; // Immediately leave read loop. |
| 84 | } |
| 85 | |
| 86 | catch(tape_block::io_error_exception){ |
| 87 | if (in_fd){ |
| 88 | fprintf(stderr,"Error: Could not read from \"%s\"!\n",cfg_infile.c_str()); |
| 89 | } else { |
| 90 | fprintf(stderr,"Error: Could not read from stdin!\n"); |
| 91 | } |
| 92 | error=true; |
| 93 | errcode=2; |
| 94 | break; // Immediately leave read loop. |
| 95 | } |
| 96 | |
| 97 | catch(tape_block::eof_illegal_exception &e){ |
| 98 | block=e.get_block(); |
| 99 | err_integrity=true; |
| 100 | read_ahead=false; |
| 101 | if (cfg_ignore_block_errors){ |
| 102 | message="Warning: Block integrity check failed!\n"; |
| 103 | warning=true; |
| 104 | } else { |
| 105 | message="Error: Block integrity check failed!\n"; |
| 106 | error=true; |
| 107 | errcode=3; |
| 108 | } |
| 109 | } |
| 110 | |
| 111 | catch(tape_block::checksum_error_exception &e){ |
| 112 | block=e.get_block(); |
| 113 | err_checksum=true; |
| 114 | if (cfg_ignore_checksum_errors){ |
| 115 | message="Warning: Block checksum wrong!\n"; |
| 116 | warning=true; |
| 117 | } else { |
| 118 | message="Error: Block checksum wrong!\n"; |
| 119 | error=true; |
| 120 | read_ahead=false; |
| 121 | errcode=4; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | // Now let's check for block type |
| 126 | if ((!error)&&(!warning)&&!block->has_known_type()){ |
| 127 | if (cfg_ignore_unknown_block_errors){ |
| 128 | message="Warning: Unknown Block type!"; |
| 129 | warning=true; |
| 130 | }else{ |
| 131 | message="Error: Unknown Block type!"; |
| 132 | error=true; |
| 133 | read_ahead=false; |
| 134 | errcode=5; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | // Count block. |
| 139 | blocks_read++; |
| 140 | tape.insert(tape.end(),block); |
| 141 | block_start=read_pointer+block->get_discarded_bytes(); |
| 142 | block_end=block_start+block->get_raw_size()-1; |
| 143 | read_pointer=block_end+1; |
| 144 | |
| 145 | FILE * fp=stdwarn; |
| 146 | if (error) fp=stderr; |
| 147 | |
| 148 | if (cfg_verbose||error||warning){ |
| 149 | if (!spaced) fprintf(fp,"\n"); |
| 150 | spaced=false; |
| 151 | fprintf(fp,"Block No.%03i: Start:0x%04x End:0x%04x Size:0x%02x\n", |
| 152 | blocks_read-1, |
| 153 | block_start, |
| 154 | block_end, |
| 155 | block->get_raw_size()); |
| 156 | } |
| 157 | |
| 158 | if (error) fprintf(stderr,message.c_str()); |
| 159 | if (warning) fprintf(stdwarn,message.c_str()); |
| 160 | |
| 161 | if(cfg_list_contents){ |
| 162 | dump_vector(block->get_description()); |
| 163 | if (!error&&!warning) spaced=false; |
| 164 | } |
| 165 | |
| 166 | if (error||warning||cfg_verbose){ |
| 167 | fprintf(fp,"\n"); |
| 168 | spaced=true; |
| 169 | } |
| 170 | if (error) errors++; |
| 171 | if (warning) warnings++; |
| 172 | } // while.... |
| 173 | if (cfg_verbose){ |
| 174 | close(in_fd); |
| 175 | fprintf(stderr,"Reading finished.\n"); |
| 176 | fprintf(stderr,"Bytes read:%i, Blocks read:%i\n",read_pointer,blocks_read); |
| 177 | } |
| 178 | } // read_tape() |
| 179 | |
| 180 | /******************************************************************************/ |
| 181 | |
| 182 | void type_check(){ |
| 183 | bool warning=false; |
| 184 | bool error=false; |
| 185 | |
| 186 | for (unsigned int i=0; i<tape.size();i++){ |
| 187 | bool spaced=false; |
| 188 | if (!tape[i]->has_known_type()){ |
| 189 | FILE * fp; |
| 190 | if (cfg_ignore_unknown_block_errors){ |
| 191 | fp=stdwarn; |
| 192 | warning=true; |
| 193 | } else { |
| 194 | fp=stderr; |
| 195 | error=true; |
| 196 | } |
| 197 | if (!spaced) { |
| 198 | spaced=false;fprintf(fp,"\n"); |
| 199 | fprintf(fp,"Warning: Unknown Block type! Block No.%i\n",i); |
| 200 | dump_vector_fp(tape[i]->get_description(),fp); |
| 201 | fprintf(fp,"\n"); |
| 202 | spaced=true; |
| 203 | } |
| 204 | if (!cfg_ignore_unknown_block_errors){ |
| 205 | int errcode=5; |
| 206 | fprintf(stdwarn,"Failed. (%i)\n",errcode); |
| 207 | exit(errcode); |
| 208 | } |
| 209 | } |
| 210 | } |
| 211 | } // type_check() |
| 212 | |
| 213 | /******************************************************************************/ |
| 214 | /*! |
| 215 | *\brief The main routine. |
| 216 | */ |
| 217 | int main(int argc, char ** args){ |
| 218 | |
| 219 | |
| 220 | // Do all the configuration stuff |
| 221 | do_config(argc,args); |
| 222 | |
| 223 | // Output a version message if desired |
| 224 | if (cfg_version){ |
| 225 | fprintf(stderr, ID_STRING, VERSION, BUILD_DATE, BUILD_STAMP); |
| 226 | exit(0); |
| 227 | } |
| 228 | |
| 229 | // Assign warning output according to configuration |
| 230 | if (cfg_quiet) stdwarn=fopen("/dev/null","w"); |
| 231 | else stdwarn=stderr; |
| 232 | |
| 233 | read_tape(); // Process input to completion. |
| 234 | exit_on_error(); |
| 235 | |
| 236 | |
| 237 | |
| 238 | if (cfg_split_objects){ |
| 239 | for (unsigned int i=0; i<tape.size();i++){ |
| 240 | tape[i]->dump_to_fd(out_fd); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | |
| 245 | return 0; |
| 246 | } // main() |
| 247 | |