summaryrefslogtreecommitdiff
path: root/src/signal/sigaddset.c
diff options
context:
space:
mode:
authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/signal/sigaddset.c
downloadmusl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/signal/sigaddset.c')
-rw-r--r--src/signal/sigaddset.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/signal/sigaddset.c b/src/signal/sigaddset.c
new file mode 100644
index 00000000..23e655db
--- /dev/null
+++ b/src/signal/sigaddset.c
@@ -0,0 +1,13 @@
+#include <signal.h>
+#include <errno.h>
+
+int sigaddset(sigset_t *set, int sig)
+{
+ unsigned s = sig-1;
+ if (s >= 8*sizeof(sigset_t)) {
+ errno = EINVAL;
+ return -1;
+ }
+ set->__bits[s/8/sizeof *set->__bits] |= 1UL<<(s&8*sizeof *set->__bits-1);
+ return 0;
+}