1 files changed, 31 insertions, 0 deletions
diff --git a/gdb/common/filestuff.c b/gdb/common/filestuff.c
index f5a754f..fa10165 100644
--- a/gdb/common/filestuff.c
+++ b/gdb/common/filestuff.c
@@ -417,3 +417,34 @@ make_cleanup_close (int fd)
   *saved_fd = fd;
   return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree);
 }
+
+/* See common/filestuff.h.  */
+
+bool
+is_regular_file (const char *name, int *errno_ptr)
+{
+  struct stat st;
+  const int status = stat (name, &st);
+
+  /* Stat should never fail except when the file does not exist.
+     If stat fails, analyze the source of error and return true
+     unless the file does not exist, to avoid returning false results
+     on obscure systems where stat does not work as expected.  */
+
+  if (status != 0)
+    {
+      if (errno != ENOENT)
+	return true;
+      *errno_ptr = ENOENT;
+      return false;
+    }
+
+  if (S_ISREG (st.st_mode))
+    return true;
+
+  if (S_ISDIR (st.st_mode))
+    *errno_ptr = EISDIR;
+  else
+    *errno_ptr = EINVAL;
+  return false;
+}