| 21 | } |
| 22 | |
| 23 | int vtkMultiBlockPLOT3DReaderInternals::CheckBinaryFile(FILE* fp, size_t fileSize) |
| 24 | { |
| 25 | clearerr(fp); // clear error and EOF flags |
| 26 | fseek(fp, 0, SEEK_SET); // move to beginning |
| 27 | this->Settings.BinaryFile = 0; |
| 28 | |
| 29 | // The shortest binary file is 12 files: 2 ints for block dims + 1 float for |
| 30 | // a coordinate. |
| 31 | if (fileSize < 12) |
| 32 | { |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | char bytes[12]; |
| 37 | if (fread(bytes, 1, 12, fp) != 12) |
| 38 | { |
| 39 | return 0; |
| 40 | } |
| 41 | // Check the first 12 bytes. If we find non-ascii characters, then we |
| 42 | // assume that it is binary. |
| 43 | for (int i = 0; i < 12; i++) |
| 44 | { |
| 45 | if (!(isdigit(bytes[i]) || bytes[i] == '.' || bytes[i] == ' ' || bytes[i] == '\r' || |
| 46 | bytes[i] == '\n' || bytes[i] == '\t')) |
| 47 | { |
| 48 | this->Settings.BinaryFile = 1; |
| 49 | return 1; |
| 50 | } |
| 51 | } |
| 52 | return 1; |
| 53 | } |
| 54 | |
| 55 | int vtkMultiBlockPLOT3DReaderInternals::CheckByteOrder(FILE* fp) |
| 56 | { |