xref: /netbsd-src/external/bsd/pam-u2f/dist/tests/expand.c (revision 540ca2718c85d7b6631d382e3e93f4dc91e51282)
1 /*
2  *  Copyright (C) 2023 Yubico AB - See COPYING
3  */
4 
5 #undef NDEBUG
6 #include <assert.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include "util.h"
10 
11 #define ASSERT_STR_EQ(a, b) assert(!strcmp(a, b))
12 #define ASSERT_EXPANDED_EQ(str, user, result)                                  \
13   do {                                                                         \
14     char *tmp = expand_variables(str, user);                                   \
15     assert(tmp != NULL);                                                       \
16     ASSERT_STR_EQ(tmp, result);                                                \
17     free(tmp);                                                                 \
18   } while (0)
19 
20 #define ASSERT_NULL(x) assert((x) == NULL)
21 
22 int main(void) {
23   ASSERT_EXPANDED_EQ("foobar", "user", "foobar");
24   ASSERT_EXPANDED_EQ("", "user", "");
25   ASSERT_EXPANDED_EQ("%%", "user", "%");
26   ASSERT_EXPANDED_EQ("%u", "user", "user");
27   ASSERT_EXPANDED_EQ("x%u", "user", "xuser");
28   ASSERT_EXPANDED_EQ("%ux", "user", "userx");
29   ASSERT_EXPANDED_EQ("x%ux", "user", "xuserx");
30   ASSERT_EXPANDED_EQ("%%%u", "user", "%user");
31   ASSERT_EXPANDED_EQ("%u%%", "user", "user%");
32   ASSERT_EXPANDED_EQ("%%u", "user", "%u");
33   ASSERT_EXPANDED_EQ("%u", "%user", "%user");
34   ASSERT_EXPANDED_EQ("%u%u", "user", "useruser");
35   ASSERT_EXPANDED_EQ("%%%u%%", "user", "%user%");
36 
37   ASSERT_NULL(expand_variables("%", "user"));  // Unexpected end of string.
38   ASSERT_NULL(expand_variables("%x", "user")); // Unknown variable.
39   ASSERT_NULL(expand_variables("%u", ""));     // Disallow empty username.
40 
41   return 0;
42 }
43