Read Version, return it
| 289 | |
| 290 | // Read Version, return it |
| 291 | word32 BER_Decoder::GetVersion() |
| 292 | { |
| 293 | if (source_.GetError().What()) return 0; |
| 294 | |
| 295 | byte b = source_.next(); |
| 296 | if (b != INTEGER) { |
| 297 | source_.SetError(INTEGER_E); |
| 298 | return 0; |
| 299 | } |
| 300 | |
| 301 | b = source_.next(); |
| 302 | if (b != 0x01) { |
| 303 | source_.SetError(VERSION_E); |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | return source_.next(); |
| 308 | } |
| 309 | |
| 310 | |
| 311 | // Read ExplicitVersion, return it or 0 if not there (not an error) |