xref: /freebsd/crypto/openssh/regress/unittests/misc/test_expand.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 /* 	$OpenBSD: test_expand.c,v 1.3 2021/12/14 21:25:27 deraadt Exp $ */
2 /*
3  * Regress test for misc string expansion functions.
4  *
5  * Placed in the public domain.
6  */
7 
8 #include "includes.h"
9 
10 #include <sys/types.h>
11 #include <stdio.h>
12 #ifdef HAVE_STDINT_H
13 #include <stdint.h>
14 #endif
15 #include <stdlib.h>
16 #include <string.h>
17 
18 #include "../test_helper/test_helper.h"
19 
20 #include "log.h"
21 #include "misc.h"
22 
23 void test_expand(void);
24 
25 void
26 test_expand(void)
27 {
28 	int parseerr;
29 	char *ret;
30 
31 	TEST_START("dollar_expand");
32 	ASSERT_INT_EQ(setenv("FOO", "bar", 1), 0);
33 	ASSERT_INT_EQ(setenv("BAR", "baz", 1), 0);
34 	(void)unsetenv("BAZ");
35 #define ASSERT_DOLLAR_EQ(x, y) do { \
36 	char *str = dollar_expand(NULL, (x)); \
37 	ASSERT_STRING_EQ(str, (y)); \
38 	free(str); \
39 } while(0)
40 	ASSERT_DOLLAR_EQ("${FOO}", "bar");
41 	ASSERT_DOLLAR_EQ(" ${FOO}", " bar");
42 	ASSERT_DOLLAR_EQ("${FOO} ", "bar ");
43 	ASSERT_DOLLAR_EQ(" ${FOO} ", " bar ");
44 	ASSERT_DOLLAR_EQ("${FOO}${BAR}", "barbaz");
45 	ASSERT_DOLLAR_EQ(" ${FOO} ${BAR}", " bar baz");
46 	ASSERT_DOLLAR_EQ("${FOO}${BAR} ", "barbaz ");
47 	ASSERT_DOLLAR_EQ(" ${FOO} ${BAR} ", " bar baz ");
48 	ASSERT_DOLLAR_EQ("$", "$");
49 	ASSERT_DOLLAR_EQ(" $", " $");
50 	ASSERT_DOLLAR_EQ("$ ", "$ ");
51 
52 	/* suppress error messages for error handing tests */
53 	log_init("test_misc", SYSLOG_LEVEL_QUIET, SYSLOG_FACILITY_AUTH, 1);
54 	/* error checking, non existent variable */
55 	ret = dollar_expand(&parseerr, "a${BAZ}");
56 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 0);
57 	ret = dollar_expand(&parseerr, "${BAZ}b");
58 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 0);
59 	ret = dollar_expand(&parseerr, "a${BAZ}b");
60 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 0);
61 	/* invalid format */
62 	ret = dollar_expand(&parseerr, "${");
63 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 1);
64 	ret = dollar_expand(&parseerr, "${F");
65 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 1);
66 	ret = dollar_expand(&parseerr, "${FO");
67 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 1);
68 	/* empty variable name */
69 	ret = dollar_expand(&parseerr, "${}");
70 	ASSERT_PTR_EQ(ret, NULL); ASSERT_INT_EQ(parseerr, 1);
71 	/* restore loglevel to default */
72 	log_init("test_misc", SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_AUTH, 1);
73 	TEST_DONE();
74 
75 	TEST_START("percent_expand");
76 	ASSERT_STRING_EQ(percent_expand("%%", "%h", "foo", NULL), "%");
77 	ASSERT_STRING_EQ(percent_expand("%h", "h", "foo", NULL), "foo");
78 	ASSERT_STRING_EQ(percent_expand("%h ", "h", "foo", NULL), "foo ");
79 	ASSERT_STRING_EQ(percent_expand(" %h", "h", "foo", NULL), " foo");
80 	ASSERT_STRING_EQ(percent_expand(" %h ", "h", "foo", NULL), " foo ");
81 	ASSERT_STRING_EQ(percent_expand(" %a%b ", "a", "foo", "b", "bar", NULL),
82 	    " foobar ");
83 	TEST_DONE();
84 
85 	TEST_START("percent_dollar_expand");
86 	ASSERT_STRING_EQ(percent_dollar_expand("%h${FOO}", "h", "foo", NULL),
87 	    "foobar");
88 	TEST_DONE();
89 }
90