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[JPWL] opj_compress: reorder checks related to code block dimensions to avoid potential int overflow 

Signed-off-by: Young_X <YangX92@hotmail.com>
This commit is contained in:
Young_X 2018-11-23 17:12:06 +08:00 committed by Young Xiao
parent c58df14990
commit ce9583d1d7
1 changed files with 3 additions and 2 deletions
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5
src/bin/jpwl/opj_jpwl_compress.c
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@ -952,8 +952,9 @@ static int parse_cmdline_encoder(int argc, char **argv,
case 'b': { /* code-block dimension */
int cblockw_init = 0, cblockh_init = 0;
sscanf(opj_optarg, "%d,%d", &cblockw_init, &cblockh_init);
if (cblockw_init * cblockh_init > 4096 || cblockw_init > 1024
|| cblockw_init < 4 || cblockh_init > 1024 || cblockh_init < 4) {
if (cblockw_init > 1024 || cblockw_init < 4 ||
cblockh_init > 1024 || cblockh_init < 4 ||
cblockw_init * cblockh_init > 4096) {
fprintf(stderr,
"!! Size of code_block error (option -b) !!\n\nRestriction :\n"
" * width*height<=4096\n * 4<=width,height<= 1024\n\n");