]>
Commit | Line | Data |
---|---|---|
9ff9add9 UD |
1 | /* Test of getcwd function. |
2 | Copyright (C) 2000 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Library General Public License as | |
8 | published by the Free Software Foundation; either version 2 of the | |
9 | License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Library General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Library General Public | |
17 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
18 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include <errno.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <unistd.h> | |
26 | #include <sys/param.h> | |
27 | ||
28 | ||
29 | #define TEST_FUNCTION do_test () | |
30 | static int | |
31 | do_test (void) | |
32 | { | |
33 | char thepath[4096]; /* Yes, this limits the environment this test | |
34 | can run it but I honestly don't care about | |
35 | people which have this problem. */ | |
36 | char *bufs[10]; | |
37 | size_t lens[10]; | |
38 | size_t sbs; | |
39 | size_t len; | |
40 | int i; | |
41 | ||
42 | if (getcwd (thepath, sizeof thepath) == NULL) | |
43 | { | |
44 | if (errno == ERANGE) | |
45 | /* The path is too long, skip all tests. */ | |
46 | return 0; | |
47 | ||
48 | puts ("getcwd (thepath, sizeof thepath) failed"); | |
49 | return 1; | |
50 | } | |
51 | len = strlen (thepath); | |
52 | ||
53 | sbs = 1; | |
54 | while (sbs < len + 1) | |
55 | sbs <<= 1; | |
56 | ||
57 | for (i = 0; i < 4; ++i) | |
58 | { | |
59 | lens[i] = sbs; | |
60 | bufs[i] = (char *) malloc (sbs); | |
61 | } | |
62 | ||
63 | bufs[i] = getcwd (NULL, sbs); | |
64 | lens[i] = sbs; | |
65 | if (bufs[i] == NULL) | |
66 | { | |
67 | puts ("getcwd (NULL, sbs) failed"); | |
68 | return 1; | |
69 | } | |
70 | ++i; | |
71 | ||
72 | for (; i < 10; sbs >>= 1, ++i) | |
73 | { | |
74 | bufs[i] = (char *) malloc (MAX (1, sbs)); | |
75 | lens[i] = sbs; | |
76 | } | |
77 | ||
78 | /* Before we test the result write something in the memory to see | |
79 | whether the allocation went right. */ | |
80 | for (i = 0; i < 10; ++i) | |
81 | if (i != 4 && bufs[i] != NULL) | |
82 | memset (bufs[i], '\xff', lens[i]); | |
83 | ||
84 | if (strcmp (thepath, bufs[4]) != 0) | |
85 | { | |
86 | printf ("\ | |
87 | getcwd (NULL, sbs) = \"%s\", getcwd (thepath, sizeof thepath) = \"%s\"\n", | |
88 | bufs[4], thepath); | |
89 | return 1; | |
90 | } | |
91 | ||
92 | /* Now overwrite all buffers to see that getcwd allocated the buffer | |
93 | of right size. */ | |
94 | for (i = 0; i < 10; ++i) | |
95 | memset (bufs[i], i, lens[i]); | |
96 | ||
97 | for (i = 0; i < 10; ++i) | |
98 | free (bufs[i]); | |
99 | ||
100 | /* Test whether the function signals success despite the buffer | |
101 | being too small. */ | |
102 | if (getcwd (NULL, len) != NULL) | |
103 | { | |
104 | puts ("getcwd (NULL, len) didn't failed"); | |
105 | return 1; | |
106 | } | |
107 | ||
108 | bufs[0] = malloc (len); | |
109 | bufs[1] = malloc (len); | |
110 | bufs[2] = malloc (len); | |
111 | if (bufs[1] != NULL) | |
112 | { | |
113 | if (getcwd (bufs[1], len) != NULL) | |
114 | { | |
115 | puts ("getcwd (bufs[1], len) didn't failed"); | |
116 | return 1; | |
117 | } | |
118 | free (bufs[0]); | |
119 | free (bufs[1]); | |
120 | free (bufs[2]); | |
121 | } | |
122 | ||
ca41028b | 123 | memset (thepath, '\xfe', sizeof (thepath)); |
9ff9add9 UD |
124 | if (getcwd (thepath, len) != NULL) |
125 | { | |
126 | puts ("getcwd (thepath, len) didn't failed"); | |
127 | return 1; | |
128 | } | |
129 | ||
ca41028b UD |
130 | for (i = len; i < sizeof thepath; ++i) |
131 | if (thepath[i] != '\xfe') | |
132 | { | |
133 | puts ("thepath[i] != '\xfe'"); | |
134 | return 1; | |
135 | } | |
136 | ||
9ff9add9 UD |
137 | /* Now test handling of correctly sized buffers. */ |
138 | bufs[0] = getcwd (NULL, len + 1); | |
139 | if (bufs[0] == NULL) | |
140 | { | |
141 | puts ("getcwd (NULL, len + 1) failed"); | |
142 | return 1; | |
143 | } | |
144 | free (bufs[0]); | |
145 | ||
146 | memset (thepath, '\xff', sizeof thepath); | |
147 | if (getcwd (thepath, len + 1) == NULL) | |
148 | { | |
149 | puts ("getcwd (thepath, len + 1) failed"); | |
150 | return 1; | |
151 | } | |
152 | ||
153 | for (i = len + 1; i < sizeof thepath; ++i) | |
154 | if (thepath[i] != '\xff') | |
155 | { | |
156 | printf ("thepath[%d] != '\xff'\n", i); | |
157 | return 1; | |
158 | } | |
159 | ||
160 | puts ("everything OK"); | |
161 | ||
162 | return 0; | |
163 | } | |
164 | ||
165 | #include "../test-skeleton.c" |