X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fsignal%2Fsetitimer.c;h=0dfbeb4db5a7ad65faeac76e6039a11807645f2b;hb=558c01338b0b635632e70af6ec8a484ca70b0328;hp=3b2375809a7bd946ba2d420859a47b49d87414a7;hpb=aa398f56fa398f2202b04e82c67f822f3233786f;p=musl

diff --git a/src/signal/setitimer.c b/src/signal/setitimer.c
index 3b237580..0dfbeb4d 100644
--- a/src/signal/setitimer.c
+++ b/src/signal/setitimer.c
@@ -1,7 +1,26 @@
 #include <sys/time.h>
+#include <errno.h>
 #include "syscall.h"
 
-int setitimer(int which, const struct itimerval *new, struct itimerval *old)
+#define IS32BIT(x) !((x)+0x80000000ULL>>32)
+
+int setitimer(int which, const struct itimerval *restrict new, struct itimerval *restrict old)
 {
+	if (sizeof(time_t) > sizeof(long)) {
+		time_t is = new->it_interval.tv_sec, vs = new->it_value.tv_sec;
+		long ius = new->it_interval.tv_usec, vus = new->it_value.tv_usec;
+		if (!IS32BIT(is) || !IS32BIT(vs))
+			return __syscall_ret(-ENOTSUP);
+		long old32[4];
+		int r = __syscall(SYS_setitimer, which,
+			((long[]){is, ius, vs, vus}), old32);
+		if (!r && old) {
+			old->it_interval.tv_sec = old32[0];
+			old->it_interval.tv_usec = old32[1];
+			old->it_value.tv_sec = old32[2];
+			old->it_value.tv_usec = old32[3];
+		}
+		return __syscall_ret(r);
+	}
 	return syscall(SYS_setitimer, which, new, old);
 }