1 /* Test the support_quote_blob function.
2    Copyright (C) 2018-2021 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
do_test(void)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>
62