fix off-by-one in bounds check in fpathconf

this error resulted in an out-of-bounds read, as opposed to a reported
error, when calling the function with an argument one greater than the
max valid index.
This commit is contained in:
Rich Felker 2014-09-05 14:01:13 -04:00
parent 633183b5d1
commit 3bed89aa74
1 changed files with 1 additions and 1 deletions

View File

@ -27,7 +27,7 @@ long fpathconf(int fd, int name)
[_PC_SYMLINK_MAX] = SYMLINK_MAX,
[_PC_2_SYMLINKS] = 1
};
if (name > sizeof(values)/sizeof(values[0])) {
if (name >= sizeof(values)/sizeof(values[0])) {
errno = EINVAL;
return -1;
}