| 169 | } |
| 170 | |
| 171 | static bool readlocalfileheader(stream *f, ziplocalfileheader &h, uint offset) |
| 172 | { |
| 173 | f->seek(offset, SEEK_SET); |
| 174 | uchar buf[ZIP_LOCAL_FILE_SIZE]; |
| 175 | if(f->read(buf, ZIP_LOCAL_FILE_SIZE) != ZIP_LOCAL_FILE_SIZE) |
| 176 | return false; |
| 177 | uchar *src = buf; |
| 178 | h.signature = lilswap(*(uint *)src); src += 4; |
| 179 | h.version = lilswap(*(ushort *)src); src += 2; |
| 180 | h.flags = lilswap(*(ushort *)src); src += 2; |
| 181 | h.compression = lilswap(*(ushort *)src); src += 2; |
| 182 | h.modtime = lilswap(*(ushort *)src); src += 2; |
| 183 | h.moddate = lilswap(*(ushort *)src); src += 2; |
| 184 | h.crc32 = lilswap(*(uint *)src); src += 4; |
| 185 | h.compressedsize = lilswap(*(uint *)src); src += 4; |
| 186 | h.uncompressedsize = lilswap(*(uint *)src); src += 4; |
| 187 | h.namelength = lilswap(*(ushort *)src); src += 2; |
| 188 | h.extralength = lilswap(*(ushort *)src); src += 2; |
| 189 | if(h.signature != ZIP_LOCAL_FILE_SIGNATURE) return false; |
| 190 | // h.uncompressedsize or h.compressedsize may be zero - so don't validate |
| 191 | return true; |
| 192 | } |
| 193 | |
| 194 | // stream interface |
| 195 | |