Regression test portability: batch of bugs (volume 2)

Fix various regression test portability in tests/bugs.

bug-861542.t
- Avoid syntax specific to GNU sed.

bug-860663.t
- Command argument length is system dependent, and specifying 1000 file
  path may overflow it. Use a C program to do the job in a portable and
  efficient way.
- Add a test that we created the specified amount of files.

bug-858242.c, bug-808400-fcntl.c, bug-808400-flock.c
- fstat64() is Linux-specific. Define it as fstat for other systems.

bug-823081.t
- Use portable tail -n instead of tail --lines

In many tests:
- Do not assume python interpreter name. Use $PYTHON as defined
  in env.rc by configure.

utils/libcxattr.py
- If python version is 2.6 or higher, use a portable mechanism to
  recover errno. The original version is retained for python version
  2.5 and earlier but it only works on Linux.

BUG: 1129939
Change-Id: If2fea1ffec5cc6ab2de426fb200e884450afe61b
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/9097
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/tests/bugs/bug-860663.c b/tests/bugs/bug-860663.c
new file mode 100644
index 00000000000..6f6d0696e64
--- /dev/null
+++ b/tests/bugs/bug-860663.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <err.h>
+#include <sys/param.h>
+
+int
+main(argc, argv)
+        int argc;
+        char **argv;
+{
+        char *basepath;
+        char path[MAXPATHLEN + 1];
+        unsigned int count;
+        int i, fd;
+
+        if (argc != 3)
+                errx(1, "usage: %s path count", argv[0]);
+
+        basepath = argv[1];
+        count = atoi(argv[2]);
+
+        if (count > 999999)
+                errx(1, "count too big");
+
+        if (strlen(basepath) > MAXPATHLEN - 6)
+                errx(1, "path too long");
+
+        for (i = 0; i < count; i++) {
+                (void)sprintf(path, "%s%06d", basepath, i);
+
+                if ((fd = open(path, O_CREAT|O_RDWR, 0644)) == -1)
+                        err(1, "create %s failed", path);
+
+                if (close(fd) != 0)
+                        warn("close %s failed", path);
+        }
+
+        return 0;
+}