tests: check printing of block/char device numbers in -yy mode

* tests/dev-yy.c: New file.
* tests/pure_executables.list: Add dev-yy.
* tests/.gitignore: Likewise.
* tests/gen_tests.in (dev-yy): New test.

diff --git a/tests/.gitignore b/tests/.gitignore
index 430adca4e03238c11f63c9a72cf0459e38850c74..dd0c8e12a4c151b24b740e827f49b4ebf0380852 100644 (file)
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -40,6 +40,7 @@ copy_file_range
 count-f
 creat
 delete_module
+dev-yy
 dup
 dup2
 dup3

diff --git a/tests/dev-yy.c b/tests/dev-yy.c
new file mode 100644 (file)
index 0000000..58a1e41
--- /dev/null
+++ b/tests/dev-yy.c
@@ -0,0 +1,101 @@
+/*
+ * Check printing of character/block device numbers in -yy mode.
+ *
+ * Copyright (c) 2018 The strace developers.
+ * 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.
+ */
+
+#include "tests.h"
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include <asm/unistd.h>
+
+#include <linux/fcntl.h>
+
+#include <sys/sysmacros.h>
+
+#if defined __NR_openat && defined O_PATH
+
+int
+main(void)
+{
+       static const struct {
+               const char *path;
+               unsigned int major;
+               unsigned int minor;
+               bool blk;
+               bool optional;
+       } checks[] = {
+               { "/dev/zero", 1, 5, false, false },
+               { "/dev/full", 1, 7, false, false },
+               { "/dev/sda",  8, 0, true,  true  },
+       };
+
+       for (unsigned int i = 0; i < ARRAY_SIZE(checks); i++) {
+               /*
+                * We can't have nice things here and call openat() directly as
+                * some libcs (yes, musl, I'm looking at you now) are too
+                * frivolous in passing flags to the kernel.
+                */
+               long fd = syscall(__NR_openat, AT_FDCWD, checks[i].path,
+                                 O_RDONLY|O_PATH);
+
+               printf("openat(AT_FDCWD, \"%s\", O_RDONLY|O_PATH) = %s",
+                      checks[i].path, sprintrc(fd));
+               if (fd >= 0)
+                       printf("<%s<%s %u:%u>>",
+                              checks[i].path,
+                              checks[i].blk ? "block" : "char",
+                              checks[i].major, checks[i].minor);
+               puts("");
+
+               if (fd < 0) {
+                       if (checks[i].optional)
+                               continue;
+                       else
+                               perror_msg_and_fail("openat(\"%s\")",
+                                                   checks[i].path);
+               }
+
+               int rc = fsync(fd);
+
+               printf("fsync(%ld<%s<%s %u:%u>>) = %s\n",
+                      fd, checks[i].path, checks[i].blk ? "block" : "char",
+                      checks[i].major, checks[i].minor, sprintrc(rc));
+
+               close(fd);
+       }
+
+       puts("+++ exited with 0 +++");
+       return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_openat && O_PATH")
+
+#endif

diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 6215e3dd56ba0758b75e333c78bf9e2f4edd6b60..55cc98defab1fabb147f5313f6504aeaf145e55d 100644 (file)
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -49,6 +49,7 @@ clock_xettime -a36 -e trace=clock_getres,clock_gettime,clock_settime
 copy_file_range
 creat  -a20
 delete_module  -a23
+dev-yy -a30 -e trace=openat,fsync -P "/dev/full" -P "/dev/zero" -P "/dev/sda" -yy
 dup    -a8
 dup2   -a13
 dup3   -a24

diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index bf5f694ced13ae9d5e863330779d44c6bcda5f1d..18b5f1d8ba1aa029281e85a99ce05d936b5e588d 100755 (executable)
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -23,6 +23,7 @@ clock_xettime
 copy_file_range
 creat
 delete_module
+dev-yy
 dup
 dup2
 dup3