xref: /freebsd/crypto/heimdal/lib/roken/test-readenv.c (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
1 /*
2  * Copyright (c) 2005 Kungliga Tekniska H�gskolan
3  * (Royal Institute of Technology, Stockholm, Sweden).
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * 3. Neither the name of the Institute nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 RCSID("$Id: test-readenv.c 20868 2007-06-03 21:02:04Z lha $");
37 #endif
38 
39 #include "roken.h"
40 #include "test-mem.h"
41 
42 char *s1 = "VAR1=VAL1#comment\n\
43 VAR2=VAL2 VAL2 #comment\n\
44 #this another comment\n\
45 \n\
46 VAR3=FOO";
47 
48 char *s2 = "VAR1=ENV2\n\
49 ";
50 
51 static void
52 make_file(char *tmpl, size_t l)
53 {
54     int fd;
55     strlcpy(tmpl, "env.XXXXXX", l);
56     fd = mkstemp(tmpl);
57     if(fd < 0)
58 	err(1, "mkstemp");
59     close(fd);
60 }
61 
62 static void
63 write_file(const char *fn, const char *s)
64 {
65     FILE *f;
66     f = fopen(fn, "w");
67     if(f == NULL) {
68 	unlink(fn);
69 	err(1, "fopen");
70     }
71     if(fwrite(s, 1, strlen(s), f) != strlen(s))
72 	err(1, "short write");
73     if(fclose(f) != 0) {
74 	unlink(fn);
75 	err(1, "fclose");
76     }
77 }
78 
79 int
80 main(int argc, char **argv)
81 {
82     char **env = NULL;
83     int count = 0;
84     char fn[MAXPATHLEN];
85     int error = 0;
86 
87     make_file(fn, sizeof(fn));
88 
89     write_file(fn, s1);
90     count = read_environment(fn, &env);
91     if(count != 3) {
92 	warnx("test 1: variable count %d != 3", count);
93 	error++;
94     }
95 
96     write_file(fn, s2);
97     count = read_environment(fn, &env);
98     if(count != 1) {
99 	warnx("test 2: variable count %d != 1", count);
100 	error++;
101     }
102 
103     unlink(fn);
104     count = read_environment(fn, &env);
105     if(count != 0) {
106 	warnx("test 3: variable count %d != 0", count);
107 	error++;
108     }
109     for(count = 0; env && env[count]; count++);
110     if(count != 3) {
111 	warnx("total variable count %d != 3", count);
112 	error++;
113     }
114     free_environment(env);
115 
116 
117     return error;
118 }
119