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Commit | Line | Data |
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320054e8 DG |
1 | #include <signal.h> |
2 | #include <errno.h> | |
3 | #include "syscall.h" | |
4 | ||
5 | int sigaltstack(const stack_t *restrict ss, stack_t *restrict old) | |
6 | { | |
7 | if (ss) { | |
8 | if (ss->ss_size < MINSIGSTKSZ) { | |
9 | errno = ENOMEM; | |
10 | return -1; | |
11 | } | |
f41256b6 | 12 | if (ss->ss_flags & SS_ONSTACK) { |
320054e8 DG |
13 | errno = EINVAL; |
14 | return -1; | |
15 | } | |
16 | } | |
17 | return syscall(SYS_sigaltstack, ss, old); | |
18 | } |