support/tst-support_quote_blob.c

   1 /* Test the support_quote_blob function.
   2    Copyright (C) 2018-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <support/check.h>
  20 #include <support/support.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23
  24 static int
  25 do_test (void)
  26 {
  27   /* Check handling of the empty blob, both with and without trailing
  28      NUL byte.  */
  29   char *p = support_quote_blob ("", 0);
  30   TEST_COMPARE (strlen (p), 0);
  31   free (p);
  32   p = support_quote_blob ("X", 0);
  33   TEST_COMPARE (strlen (p), 0);
  34   free (p);
  35
  36   /* Check escaping of backslash-escaped characters, and lack of
  37      escaping for other shell meta-characters.  */
  38   p = support_quote_blob ("$()*?`@[]{}~\'\"X", 14);
  39   TEST_COMPARE (strcmp (p, "$()*?`@[]{}~\\'\\\""), 0);
  40   free (p);
  41
  42   /* Check lack of escaping for letters and digits.  */
  43 #define LETTERS_AND_DIGTS                       \
  44   "abcdefghijklmnopqrstuvwxyz"                  \
  45   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"                  \
  46   "0123456789"
  47   p = support_quote_blob (LETTERS_AND_DIGTS "@", 2 * 26 + 10);
  48   TEST_COMPARE (strcmp (p, LETTERS_AND_DIGTS), 0);
  49   free (p);
  50
  51   /* Check escaping of control characters and other non-printable
  52      characters.  */
  53   p = support_quote_blob ("\r\n\t\a\b\f\v\1\177\200\377\0@", 14);
  54   TEST_COMPARE (strcmp (p, "\\r\\n\\t\\a\\b\\f\\v\\001"
  55                         "\\177\\200\\377\\000@\\000"), 0);
  56   free (p);
  57
  58   return 0;
  59 }
  60
  61 #include <support/test-driver.c>