tests: add one more case to select.test

* tests/select.c (main): Check how timeout is printed
on exiting syscall.

diff --git a/tests/select.c b/tests/select.c
index db87704ed1e352c74c7113c5bac2c97d5c85fef5..0f8f6cb8ea5aa2f3110dfc5e134db04718860515 100644 (file)
--- a/tests/select.c
+++ b/tests/select.c
@@ -1,3 +1,30 @@
+/*
+ * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 /*
  * Based on test by Dr. David Alan Gilbert <dave@treblig.org>
  */
@@ -24,10 +51,10 @@ int main(void)
        struct {
                struct timeval tv;
                int pad[2];
-       } tm = {
-               .tv = { .tv_usec = 123 },
+       } tm_in = {
+               .tv = { .tv_sec = 0xc0de1, .tv_usec = 0xc0de2 },
                .pad = { 0xdeadbeef, 0xbadc0ded }
-       };
+       }, tm = tm_in;
 
        if (pipe(fds))
                return 77;
@@ -44,6 +71,22 @@ int main(void)
               fds[1] + 1, fds[0], fds[1],
               fds[0], fds[1], fds[0], fds[1]);
 
+       /*
+        * Another simple one, with a timeout.
+        */
+       FD_SET(1, set);
+       FD_SET(2, set);
+       FD_SET(fds[0], set);
+       FD_SET(fds[1], set);
+       if (syscall(NR_select, fds[1] + 1, NULL, set, NULL, &tm.tv) != 3)
+               return 77;
+       printf("select(%d, NULL, [1 2 %d %d], NULL, {%Ld, %Ld})"
+              " = 3 (out [1 2 %d], left {%Ld, %Ld})\n",
+              fds[1] + 1, fds[0], fds[1],
+              (long long) tm_in.tv.tv_sec, (long long) tm_in.tv.tv_usec,
+              fds[1],
+              (long long) tm.tv.tv_sec, (long long) tm.tv.tv_usec);
+
        /*
         * Now the crash case that trinity found, negative nfds
         * but with a pointer to a large chunk of valid memory.
@@ -60,6 +103,8 @@ int main(void)
         */
        FD_ZERO(set);
        FD_SET(fds[0],set);
+       tm.tv.tv_sec = 0;
+       tm.tv.tv_usec = 123;
        if (syscall(NR_select, FD_SETSIZE + 1, set, set + 1, NULL, &tm.tv))
                return 77;
        printf("select(%d, [%d], [], NULL, {0, 123}) = 0 (Timeout)\n",