1 files changed, 92 insertions, 0 deletions
diff --git a/grub-core/lib/getline.c b/grub-core/lib/getline.c
new file mode 100644
index 0000000..edb8e9f
--- /dev/null
+++ b/grub-core/lib/getline.c
@@ -0,0 +1,92 @@
+/* main.c - the normal mode main routine */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2000,2001,2002,2003,2005,2006,2007,2008,2009,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/kernel.h>
+#include <grub/normal.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/term.h>
+#include <grub/env.h>
+#include <grub/parser.h>
+#include <grub/reader.h>
+#include <grub/menu_viewer.h>
+#include <grub/auth.h>
+#include <grub/i18n.h>
+#include <grub/charset.h>
+#include <grub/script_sh.h>
+
+/* Read a line from the file FILE.  */
+char *
+grub_file_getline (grub_file_t file)
+{
+  char c;
+  grub_size_t pos = 0;
+  char *cmdline;
+  int have_newline = 0;
+  grub_size_t max_len = 64;
+
+  /* Initially locate some space.  */
+  cmdline = grub_malloc (max_len);
+  if (! cmdline)
+    return 0;
+
+  while (1)
+    {
+      if (grub_file_read (file, &c, 1) != 1)
+	break;
+
+      /* Skip all carriage returns.  */
+      if (c == '\r')
+	continue;
+
+
+      if (pos + 1 >= max_len)
+	{
+	  char *old_cmdline = cmdline;
+	  max_len = max_len * 2;
+	  cmdline = grub_realloc (cmdline, max_len);
+	  if (! cmdline)
+	    {
+	      grub_free (old_cmdline);
+	      return 0;
+	    }
+	}
+
+      if (c == '\n')
+	{
+	  have_newline = 1;
+	  break;
+	}
+
+      cmdline[pos++] = c;
+    }
+
+  cmdline[pos] = '\0';
+
+  /* If the buffer is empty, don't return anything at all.  */
+  if (pos == 0 && !have_newline)
+    {
+      grub_free (cmdline);
+      cmdline = 0;
+    }
+
+  return cmdline;
+}