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fix sigaltstack to ignore ss_size with SS_DISABLE, per POSIX

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James Y Knight 2019-07-11 11:48:08 -04:00 committed by Rich Felker
parent c225e6c1a4
commit 7829f42a2c
1 changed files with 1 additions and 1 deletions
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2
src/signal/sigaltstack.c
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@ -5,7 +5,7 @@
int sigaltstack(const stack_t *restrict ss, stack_t *restrict old) int sigaltstack(const stack_t *restrict ss, stack_t *restrict old)
{ {
if (ss) { if (ss) {
if (ss->ss_size < MINSIGSTKSZ) { if (!(ss->ss_flags & SS_DISABLE) && ss->ss_size < MINSIGSTKSZ) {
errno = ENOMEM; errno = ENOMEM;
return -1; return -1;
} }