Call get/setsockopt(2) with various sockets and check which options

cause aborts due to pledge(2) restrictions.

1 files changed, 81 insertions, 0 deletions

diff --git a/regress/sys/kern/pledge/sockopt/sockopt.c b/regress/sys/kern/pledge/sockopt/sockopt.c
new file mode 100644
index 00000000000..61e79358e56
--- /dev/null
+++ b/regress/sys/kern/pledge/sockopt/sockopt.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2017 Alexander Bluhm <bluhm@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <netinet/icmp6.h>
+
+#include <err.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+int
+main(void)
+{
+	char promises[1024];
+	size_t i, l;
+	int s, r;
+	int optval;
+	socklen_t optlen;
+
+	if (strcmp(PROMISES, "0") != 0) {
+		l = strlcpy(promises, "stdio ", sizeof(promises));
+		for (i = 0;
+		    PROMISES[i] != '\0'&& l < sizeof(promises);
+		    i++, l++) {
+			promises[l] = PROMISES[i] == '+' ?
+			    ' ' : PROMISES[i];
+		}
+		if (l >= sizeof(promises))
+			l = sizeof(promises) - 1;
+		promises[l] = '\0';
+		warnx("pledge(%s)", promises);
+		if (pledge(promises, NULL) == -1)
+			err(1, "pledge");
+	}
+
+	if ((s = socket(DOMAIN, TYPE, PROTOCOL)) == -1)
+		err(1, "socket");
+	optlen = sizeof(int);
+	if (strcmp(CALL, "set") == 0) {
+		optval = OPTVAL;
+		r = setsockopt(s, LEVEL, OPTNAME, &optval, optlen);
+	} else if (strcmp(CALL, "get") == 0) {
+		optval = 0;
+		r = getsockopt(s, LEVEL, OPTNAME, &optval, &optlen);
+	} else {
+		errx(1, "call: %s", CALL);
+	}
+	if (r == 0) {
+		if (ERRNO != 0)
+			errx(1, "success");
+	} else if (r == -1) {
+		if (errno != ERRNO)
+			err(1, "error");
+	} else {
+		errx(1, "return: %d", r);
+	}
+	if (optval != OPTVAL)
+		errx(1, "optval: %d", optval);
+
+	return (0);
+}