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opj_getopt.c: avoid crash on invalid input (#301)

This commit is contained in:
Even Rouault 2017-09-03 00:30:36 +02:00
parent e5ab1682a1
commit 3a382d3123
1 changed files with 4 additions and 1 deletions
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5
src/bin/common/opj_getopt.c
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@ -160,12 +160,15 @@ again:
} }
if (argv[opj_optind][0] == '-') { /* long option */ if (argv[opj_optind][0] == '-') { /* long option */
char* arg = argv[opj_optind] + 1; char* arg;
const opj_option_t* o; const opj_option_t* o;
o = longopts; o = longopts;
len = sizeof(longopts[0]); len = sizeof(longopts[0]);
if (param > 1) { if (param > 1) {
if (opj_optind + 1 >= argc) {
return -1;
}
arg = argv[opj_optind + 1]; arg = argv[opj_optind + 1];
opj_optind++; opj_optind++;
} else { } else {