libfshelp-tests: Tests for file record locking

2019-03-04  Svante Signell <svante.signell@gmail.com>

        * test-*.c: Update code, remove test results.
        * README.new_tests: New file, summarize new test results.

2019-02-12  Svante Signell <svante.signell@gmail.com>

        * test-*.c: Update code, add some test results.
        * Makefile: Remove extra flags.

2019-02-01  Svante Signell <svante.signell@gmail.com>

        * Update copyright years.

2016-05-23  Svante Signell <svante.signell@gmail.com>

        * Makefile: Add sub-directory libfshelp-tests.

2018-12-07  Svante Signell <svante.signell@gmail.com>

        * Update copyright years.
        * locks.c(cmd_lock): Call fshelp_rlock_tweak()
          with new last argument rendezvous = MACH_PORT_NULL.

2017-01-05  Svante Signell <svante.signell@gmail.com>

        * Update copyright years and headers.

2016-12-28  Svante Signell <svante.signell@gmail.com>

        * Makefile: test-flock.c, test-lockf.c and test-fcntl.c
        * test-lockf.c: New file
        * Rename set-flock.c, set-fcntl.c to test-flock.c test-fcntl.c
        * TODO: Update README

2016-05-23  Svante Signell <svante.signell@gmail.com>

        * Makefile: Link with pthread, add build of set-flock.c and set-fcntl.c
        * define temporary CPP_FLAGS until glibc is updated
        * set-flock.c, set-fcntl.c: New files.
        * Fix typos in README

2001-04-11  Neal H Walfield  <neal@cs.uml.edu>

        * ChangeLog: New file, mentioning itself in this sentence.
        * Makefile: New file.
        * README: Likewise.
        * fork.c: Likewise.
        * locks: Likewise.
        * locks-tests: Likewise.
        * locks.c: Likewise.
        * race.c: Likewise.

1 files changed, 170 insertions, 0 deletions

diff --git a/libfshelp-tests/test-flock.c b/libfshelp-tests/test-flock.c
new file mode 100644
index 00000000..700aa25c
--- /dev/null
+++ b/libfshelp-tests/test-flock.c
@@ -0,0 +1,170 @@
+/* test-flock.c: Test advisory open file locks, see flock(2)
+   Options: <see below>
+
+   Copyright (C) 2016-2019 Free Software Foundation, Inc.
+
+   Written by Svante Signell <svante.signell@gmail.com>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 3, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <error.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/file.h>
+
+/* Parse args */
+int parse_args (int argc, char **argv, char **file_name,
+		int *flags, char **flagsc,
+		int *op, char **opc,
+		int *sleep_time)
+{
+  int i, tmp;
+  char *str, *endptr;
+
+  if (argc < 2)
+    error (1, 0, "Usage: %s file [flags] [operation] [sleep_time]\n\
+    file          : file name/device name\n\
+    flags         : r (O_RDONLY) | w (O_WRONLY) | rw (O_RDWR)      : [w]\n\
+    operation     : s (LOCK_SH), x (LOCK_EX), u (LOCK_UN),\n\
+                    sn (LOCK_SH | LOCK_UN), xn (LOCK_EX | LOCK_UN) : [s]\n\
+    sleep_time    : st <number>                                    : [st 10]\n",
+    argv[0]);
+
+  *file_name = argv[1];
+  for (i = 2; i < argc; i++)
+    {
+      str = argv[i];
+      if (strncmp (str, "r", 2) == 0)
+	{
+	  *flags = O_RDONLY;
+	  *flagsc = "O_RDONLY";
+	  continue;
+	}
+      if (strncmp (str, "w", 2) == 0)
+	{
+	  *flags = O_WRONLY;
+	  *flagsc = "O_WRONLY";
+	  continue;
+	}
+      if (strncmp (str, "rw", 2) == 0)
+	{
+	  *flags = O_RDWR;
+	  *flagsc = "O_RDWR";
+	  continue;
+	}
+      if (strncmp (str, "s", 2) == 0)
+	{
+      	  *op = LOCK_SH;
+	  *opc = "LOCK_SH";
+	  continue;
+	}
+      if (strncmp (str, "sn", 2) == 0)
+	{
+	  *op = LOCK_SH | LOCK_NB;
+	  *opc = "LOCK_SH | LOCK_NB";
+	  continue;
+	}
+      if (strncmp (str, "x", 2) == 0)
+	{
+	  *op = LOCK_EX;
+	  *opc = "LOCK_EX";
+	  continue;
+	}
+      if (strncmp (str, "xn", 2) == 0)
+	{
+	  *op = LOCK_EX | LOCK_NB;
+	  *opc = "LOCK_EX | LOCK_NB";
+	  continue;
+	}
+      if (strncmp (str, "u", 2) == 0)
+	{
+	  *op = LOCK_UN;
+	  *opc = "LOCK_UN";
+	  continue;
+	}
+      if (strncmp (str, "st", 2) == 0)
+	{
+	  str = argv[++i];
+	  if (str)
+	    {
+	      errno = 0;
+	      tmp = strtol (str, &endptr, 10);
+	      if (tmp == 0 && errno != 0)
+		error (1, errno, "%s", str);
+	      if (endptr == str)
+		error (1, EINVAL, "%s", str);
+	      *sleep_time = tmp;
+	    }
+	  else
+	    error (1, EINVAL, "%s", str);
+	  continue;
+	}
+      error (1, EINVAL, "%s", str);
+    }
+
+  return 0;
+}
+
+int main (int argc, char **argv)
+{
+#ifdef __GNU__
+  error_t err;
+#else
+  int err;
+#endif
+  int fd, ret = -1;
+  char *file_name = NULL;
+  int flags = O_RDONLY;
+  char *flagsc = "O_RDONLY";
+  int op = LOCK_SH;
+  char *opc = "LOCK_SH";
+  int sleep_time = 10;
+
+  ret = parse_args (argc, argv, &file_name,
+		    &flags, &flagsc,
+		    &op, &opc,
+		    &sleep_time);
+
+#ifdef __GNU__
+  printf ("test-flock: GNU/Hurd\n");
+#else
+  printf ("test-flock: GNU/Linux\n");
+#endif
+
+  printf ("file = '%s', flags = %s\n", file_name, flagsc);
+  fd = open (file_name, flags);
+  if (fd < 0)
+    error (1, errno, "open");
+  printf ("Opening '%s', fd = %d, ", file_name, fd);
+  printf ("operation = %s\n", opc);
+  printf ("Requesting lock\n");
+  err = flock (fd, op);
+  if (err)
+    error (1, errno, "flock");
+
+  printf ("Got lock: sleep_time = %d seconds\n", sleep_time);
+  sleep (sleep_time);
+
+  printf ("Closing '%s'\n", file_name);
+  close (fd);
+
+  return ret;
+}