Adding upstream version 0.0~git20221206.8b7148f.upstream/0.0_git20221206.8b7148f

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/libc-top-half/musl/src/network/setsockopt.c b/libc-top-half/musl/src/network/setsockopt.c
new file mode 100644
index 0000000..612a194
--- /dev/null
+++ b/libc-top-half/musl/src/network/setsockopt.c
@@ -0,0 +1,46 @@
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <errno.h>
+#include "syscall.h"
+
+#define IS32BIT(x) !((x)+0x80000000ULL>>32)
+#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63))
+
+int setsockopt(int fd, int level, int optname, const void *optval, socklen_t optlen)
+{
+	const struct timeval *tv;
+	time_t s;
+	suseconds_t us;
+
+	int r = __socketcall(setsockopt, fd, level, optname, optval, optlen, 0);
+
+	if (r==-ENOPROTOOPT) switch (level) {
+	case SOL_SOCKET:
+		switch (optname) {
+		case SO_RCVTIMEO:
+		case SO_SNDTIMEO:
+			if (SO_RCVTIMEO == SO_RCVTIMEO_OLD) break;
+			if (optlen < sizeof *tv) return __syscall_ret(-EINVAL);
+			tv = optval;
+			s = tv->tv_sec;
+			us = tv->tv_usec;
+			if (!IS32BIT(s)) return __syscall_ret(-ENOTSUP);
+
+			if (optname==SO_RCVTIMEO) optname=SO_RCVTIMEO_OLD;
+			if (optname==SO_SNDTIMEO) optname=SO_SNDTIMEO_OLD;
+
+			r = __socketcall(setsockopt, fd, level, optname,
+				((long[]){s, CLAMP(us)}), 2*sizeof(long), 0);
+			break;
+		case SO_TIMESTAMP:
+		case SO_TIMESTAMPNS:
+			if (SO_TIMESTAMP == SO_TIMESTAMP_OLD) break;
+			if (optname==SO_TIMESTAMP) optname=SO_TIMESTAMP_OLD;
+			if (optname==SO_TIMESTAMPNS) optname=SO_TIMESTAMPNS_OLD;
+			r = __socketcall(setsockopt, fd, level,
+				optname, optval, optlen, 0);
+			break;
+		}
+	}
+	return __syscall_ret(r);
+}