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(trunk libT) #4644 "Transmission can't download big files from webseed." -- fix overflow error with a patch based on one from and_cesbo. (Modified by Jordan to add random bugs.)

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This commit is contained in:
Jordan Lee 2011-12-10 18:42:52 +00:00
parent 74b8552521
commit 1cfeb4debb
1 changed files with 7 additions and 6 deletions
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13
libtransmission/webseed.c
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@ -481,19 +481,20 @@ task_request_next_chunk( struct tr_webseed_task * t )
char ** urls = t->webseed->file_urls;
const tr_info * inf = tr_torrentInfo( tor );
const uint32_t remain = t->length - t->blocks_done * tor->blockSize
const uint64_t remain = t->length - t->blocks_done * tor->blockSize
- evbuffer_get_length( t->content );
const uint64_t total_offset = inf->pieceSize * t->piece_index
+ t->piece_offset + t->length - remain;
const uint64_t total_offset = tr_pieceOffset( tor, t->piece_index,
t->piece_offset,
t->length - remain );
const tr_piece_index_t step_piece = total_offset / inf->pieceSize;
const uint32_t step_piece_offset
const uint64_t step_piece_offset
= total_offset - ( inf->pieceSize * step_piece );
tr_file_index_t file_index;
uint64_t file_offset;
const tr_file * file;
uint32_t this_pass;
uint64_t file_offset;
uint64_t this_pass;
tr_ioFindFileLocation( tor, step_piece, step_piece_offset,
&file_index, &file_offset );