fix sigaltstack to ignore ss_size with SS_DISABLE, per POSIX

This commit is contained in:
James Y Knight 2019-07-11 11:48:08 -04:00 committed by Rich Felker
parent c225e6c1a4
commit 7829f42a2c

View File

@ -5,7 +5,7 @@
int sigaltstack(const stack_t *restrict ss, stack_t *restrict old)
{
if (ss) {
if (ss->ss_size < MINSIGSTKSZ) {
if (!(ss->ss_flags & SS_DISABLE) && ss->ss_size < MINSIGSTKSZ) {
errno = ENOMEM;
return -1;
}