1 files changed, 125 insertions, 0 deletions
diff --git a/gnulib-tests/test-remove.c b/gnulib-tests/test-remove.c
new file mode 100644
index 0000000..1ff17ad
--- /dev/null
+++ b/gnulib-tests/test-remove.c
@@ -0,0 +1,125 @@
+/* Tests of remove.
+   Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+   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 of the License, 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (remove, int, (char const *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-remove.t"
+
+int
+main (void)
+{
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Setup.  */
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
+
+  /* Basic error conditions.  */
+  errno = 0;
+  ASSERT (remove ("") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (remove ("nosuch") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (remove ("nosuch/") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (remove (".") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY);
+  /* Resulting errno after ".." or "/" is too varied to test; it is
+     reasonable to see any of EINVAL, EEXIST, ENOTEMPTY, EACCES.  */
+  ASSERT (remove ("..") == -1);
+  ASSERT (remove ("/") == -1);
+  ASSERT (remove ("///") == -1);
+  errno = 0;
+  ASSERT (remove (BASE "dir/file/") == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Non-empty directory.  */
+  errno = 0;
+  ASSERT (remove (BASE "dir") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+
+  /* Non-directory.  */
+  ASSERT (remove (BASE "dir/file") == 0);
+
+  /* Empty directory.  */
+  errno = 0;
+  ASSERT (remove (BASE "dir/.//") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY || errno == EEXIST);
+  ASSERT (remove (BASE "dir") == 0);
+
+  /* Test symlink behavior.  Specifying trailing slash should remove
+     referent directory, or cause ENOTDIR failure, but not touch
+     symlink.  */
+  if (symlink (BASE "dir", BASE "link") != 0)
+    {
+      fputs ("skipping test: symlinks not supported on this file system\n",
+             stderr);
+      return 77;
+    }
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  if (remove (BASE "link/") == 0)
+    {
+      struct stat st;
+      errno = 0;
+      ASSERT (stat (BASE "link", &st) == -1);
+      ASSERT (errno == ENOENT);
+    }
+  else
+    ASSERT (remove (BASE "dir") == 0);
+  {
+    struct stat st;
+    ASSERT (lstat (BASE "link", &st) == 0);
+    ASSERT (S_ISLNK (st.st_mode));
+  }
+  ASSERT (remove (BASE "link") == 0);
+  /* Trailing slash on symlink to non-directory is an error.  */
+  ASSERT (symlink (BASE "loop", BASE "loop") == 0);
+  errno = 0;
+  ASSERT (remove (BASE "loop/") == -1);
+  ASSERT (errno == ELOOP || errno == ENOTDIR);
+  ASSERT (remove (BASE "loop") == 0);
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  ASSERT (symlink (BASE "file", BASE "link") == 0);
+  errno = 0;
+  ASSERT (remove (BASE "link/") == -1);
+  ASSERT (errno == ENOTDIR);
+  ASSERT (remove (BASE "link") == 0);
+  ASSERT (remove (BASE "file") == 0);
+
+  return 0;
+}