1  /* Test the support_quote_blob 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    /* 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>