1  /* Test the support_quote_string function.
       2     Copyright (C) 2018-2023 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    char *p = support_quote_string ("");
      28    TEST_COMPARE (strlen (p), 0);
      29    free (p);
      30    p = support_quote_string ("X");
      31    TEST_COMPARE (strlen (p), 1);
      32    TEST_COMPARE (p[0], 'X');
      33    free (p);
      34  
      35    /* Check escaping of backslash-escaped characters, and lack of
      36       escaping for other shell meta-characters.  */
      37    p = support_quote_string ("$()*?`@[]{}~\'\"X");
      38    TEST_COMPARE (strcmp (p, "$()*?`@[]{}~\\'\\\"X"), 0);
      39    free (p);
      40  
      41    /* Check lack of escaping for letters and digits.  */
      42  #define LETTERS_AND_DIGTS                       \
      43    "abcdefghijklmnopqrstuvwxyz"                  \
      44    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"                  \
      45    "0123456789"
      46    p = support_quote_string (LETTERS_AND_DIGTS "@");
      47    TEST_COMPARE (strcmp (p, LETTERS_AND_DIGTS "@"), 0);
      48    free (p);
      49  
      50    /* Check escaping of control characters and other non-printable
      51       characters.  */
      52    p = support_quote_string ("\r\n\t\a\b\f\v\1\177\200\377@");
      53    TEST_COMPARE (strcmp (p, "\\r\\n\\t\\a\\b\\f\\v\\001"
      54                          "\\177\\200\\377@"), 0);
      55    free (p);
      56  
      57    return 0;
      58  }
      59  
      60  #include <support/test-driver.c>