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fix ascii percentage calc

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This commit is contained in:
van Hauser
2020-06-20 09:21:02 +02:00
parent de2c565953
commit 5ca303393f
1 changed files with 9 additions and 17 deletions
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26
src/afl-fuzz-queue.c
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@ -108,7 +108,7 @@ static u8 check_if_text(struct queue_entry *q) {
if (q->len < AFL_TXT_MIN_LEN) return 0;
u8 buf[MAX_FILE];
s32 fd, len = q->len, offset = 0, ascii = 0, utf8 = 0, percent, type, comp;
s32 fd, len = q->len, offset = 0, ascii = 0, utf8 = 0, type, comp;
if ((fd = open(q->fname, O_RDONLY)) < 0) return 0;
if ((comp = read(fd, buf, len)) != len) return 0;
@ -193,22 +193,14 @@ static u8 check_if_text(struct queue_entry *q) {
}
if (utf8 >= ascii) {
type = 2;
percent = (utf8 * 100) / comp;
} else {
type = 1;
percent = (ascii * 100) / comp;
}
if (percent >= AFL_TXT_MIN_PERCENT)
return type;
else
return 0;
u32 percent_utf8 = (utf8 * 100) / comp;
u32 percent_ascii = (ascii * 100) / len;
if (percent_utf8 >= percent_ascii && percent_utf8 >= AFL_TXT_MIN_PERCENT)
return 2;
if (percent_utf8 >= AFL_TXT_MIN_PERCENT)
return 1;
return 0;
}