diff options
Diffstat (limited to 'common/file.cpp')
| -rw-r--r-- | common/file.cpp | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/common/file.cpp b/common/file.cpp index 0b9dbbef68..011e167573 100644 --- a/common/file.cpp +++ b/common/file.cpp @@ -266,9 +266,9 @@ uint32 File::readUint32BE() { return (b << 16) | a; } -uint32 File::write(void *ptr, uint32 len) { - byte *ptr2 = (byte *)ptr; - +uint32 File::write(const void *ptr, uint32 len) { + byte *tmp = 0; + if (_handle == NULL) { error("File is not open!"); return 0; @@ -281,17 +281,22 @@ uint32 File::write(void *ptr, uint32 len) { // Maybe FIXME: while it's efficient to do the encoding here, // it not really nice for a write function to modify its input. // Maybe we should work on a copy here... - uint32 t_size = len; - do { - *ptr2++ ^= _encbyte; - } while (--t_size); + tmp = (byte *)malloc(len); + for (uint32 i = 0; i < len; i ++) { + tmp[i] = ((const byte *)ptr)[i] ^ _encbyte; + } + ptr = tmp; } - if ((uint32)fwrite(ptr2, 1, len, _handle) != len) { + if ((uint32)fwrite(ptr, 1, len, _handle) != len) { clearerr(_handle); _ioFailed = true; } + if (_encbyte != 0) { + free(tmp); + } + return len; } |