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b4f95b74 | 1 | /* Tests for loading and unloading of iconv modules. |
581c785b | 2 | Copyright (C) 2000-2022 Free Software Foundation, Inc. |
b4f95b74 | 3 | This file is part of the GNU C Library. |
b4f95b74 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
b4f95b74 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
b4f95b74 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
b4f95b74 UD |
18 | |
19 | #include <iconv.h> | |
20 | #include <mcheck.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | ||
24 | ||
25 | /* How many load/unload operations do we do. */ | |
26 | #define TEST_ROUNDS 5000 | |
27 | ||
28 | ||
29 | enum state { unloaded, loaded }; | |
30 | ||
31 | struct | |
32 | { | |
33 | const char *name; | |
34 | enum state state; | |
35 | iconv_t cd; | |
36 | } modules[] = | |
37 | { | |
38 | #define MODULE(Name) { .name = #Name, .state = unloaded } | |
39 | MODULE (ISO-8859-1), | |
40 | MODULE (ISO-8859-2), | |
41 | MODULE (ISO-8859-3), | |
42 | MODULE (ISO-8859-4), | |
43 | MODULE (ISO-8859-5), | |
44 | MODULE (ISO-8859-6), | |
45 | MODULE (ISO-8859-15), | |
46 | MODULE (EUC-JP), | |
47 | MODULE (EUC-KR), | |
48 | MODULE (EUC-CN), | |
49 | MODULE (EUC-TW), | |
50 | MODULE (SJIS), | |
51 | MODULE (UHC), | |
52 | MODULE (KOI8-R), | |
53 | MODULE (BIG5), | |
54 | MODULE (BIG5HKSCS) | |
55 | }; | |
56 | #define nmodules (sizeof (modules) / sizeof (modules[0])) | |
57 | ||
58 | ||
59 | /* The test data. */ | |
6150c20c AJ |
60 | static const char inbuf[] = |
61 | "The first step is the function to create a handle.\n" | |
62 | "\n" | |
63 | " - Function: iconv_t iconv_open (const char *TOCODE, const char\n" | |
64 | " *FROMCODE)\n" | |
65 | " The `iconv_open' function has to be used before starting a\n" | |
66 | " conversion. The two parameters this function takes determine the\n" | |
67 | " source and destination character set for the conversion and if the\n" | |
68 | " implementation has the possibility to perform such a conversion the\n" | |
69 | " function returns a handle.\n" | |
70 | "\n" | |
71 | " If the wanted conversion is not available the function returns\n" | |
72 | " `(iconv_t) -1'. In this case the global variable `errno' can have\n" | |
73 | " the following values:\n" | |
74 | "\n" | |
75 | " `EMFILE'\n" | |
76 | " The process already has `OPEN_MAX' file descriptors open.\n" | |
77 | "\n" | |
78 | " `ENFILE'\n" | |
79 | " The system limit of open file is reached.\n" | |
80 | "\n" | |
81 | " `ENOMEM'\n" | |
82 | " Not enough memory to carry out the operation.\n" | |
83 | "\n" | |
84 | " `EINVAL'\n" | |
85 | " The conversion from FROMCODE to TOCODE is not supported.\n" | |
86 | "\n" | |
87 | " It is not possible to use the same descriptor in different threads\n" | |
88 | " to perform independent conversions. Within the data structures\n" | |
89 | " associated with the descriptor there is information about the\n" | |
90 | " conversion state. This must not be messed up by using it in\n" | |
91 | " different conversions.\n" | |
92 | "\n" | |
93 | " An `iconv' descriptor is like a file descriptor as for every use a\n" | |
94 | " new descriptor must be created. The descriptor does not stand for\n" | |
95 | " all of the conversions from FROMSET to TOSET.\n" | |
96 | "\n" | |
97 | " The GNU C library implementation of `iconv_open' has one\n" | |
98 | " significant extension to other implementations. To ease the\n" | |
99 | " extension of the set of available conversions the implementation\n" | |
100 | " allows storing the necessary files with data and code in\n" | |
101 | " arbitrarily many directories. How this extension has to be\n" | |
102 | " written will be explained below (*note glibc iconv\n" | |
103 | " Implementation::). Here it is only important to say that all\n" | |
104 | " directories mentioned in the `GCONV_PATH' environment variable are\n" | |
105 | " considered if they contain a file `gconv-modules'. These\n" | |
106 | " directories need not necessarily be created by the system\n" | |
107 | " administrator. In fact, this extension is introduced to help users\n" | |
108 | " writing and using their own, new conversions. Of course this does\n" | |
109 | " not work for security reasons in SUID binaries; in this case only\n" | |
110 | " the system directory is considered and this normally is\n" | |
111 | " `PREFIX/lib/gconv'. The `GCONV_PATH' environment variable is\n" | |
112 | " examined exactly once at the first call of the `iconv_open'\n" | |
113 | " function. Later modifications of the variable have no effect.\n"; | |
b4f95b74 UD |
114 | |
115 | ||
29955b5d AS |
116 | static int |
117 | do_test (void) | |
b4f95b74 | 118 | { |
57b36a0a | 119 | size_t count = TEST_ROUNDS; |
b4f95b74 UD |
120 | int result = 0; |
121 | ||
122 | mtrace (); | |
123 | ||
124 | /* Just a seed. */ | |
125 | srandom (TEST_ROUNDS); | |
126 | ||
127 | while (count--) | |
128 | { | |
129 | int idx = random () % nmodules; | |
130 | ||
131 | if (modules[idx].state == unloaded) | |
132 | { | |
133 | char outbuf[10000]; | |
134 | char *inptr = (char *) inbuf; | |
135 | size_t insize = sizeof (inbuf) - 1; | |
136 | char *outptr = outbuf; | |
137 | size_t outsize = sizeof (outbuf); | |
138 | ||
139 | /* Load the module and do the conversion. */ | |
140 | modules[idx].cd = iconv_open ("UTF-8", modules[idx].name); | |
141 | ||
142 | if (modules[idx].cd == (iconv_t) -1) | |
143 | { | |
144 | printf ("opening of %s failed: %m\n", modules[idx].name); | |
145 | result = 1; | |
146 | break; | |
147 | } | |
148 | ||
149 | modules[idx].state = loaded; | |
150 | ||
151 | /* Now a simple test. */ | |
152 | if (iconv (modules[idx].cd, &inptr, &insize, &outptr, &outsize) != 0 | |
153 | || *inptr != '\0') | |
154 | { | |
155 | printf ("conversion with %s failed\n", modules[idx].name); | |
156 | result = 1; | |
157 | } | |
158 | } | |
159 | else | |
160 | { | |
161 | /* Unload the module. */ | |
162 | if (iconv_close (modules[idx].cd) != 0) | |
163 | { | |
164 | printf ("closing of %s failed: %m\n", modules[idx].name); | |
165 | result = 1; | |
166 | break; | |
167 | } | |
168 | ||
169 | modules[idx].state = unloaded; | |
170 | } | |
171 | } | |
172 | ||
173 | for (count = 0; count < nmodules; ++count) | |
174 | if (modules[count].state == loaded && iconv_close (modules[count].cd) != 0) | |
175 | { | |
176 | printf ("closing of %s failed: %m\n", modules[count].name); | |
177 | result = 1; | |
178 | } | |
179 | ||
180 | return result; | |
181 | } | |
29955b5d | 182 | |
3cefdd73 | 183 | #define TIMEOUT 30 |
29955b5d AS |
184 | #define TEST_FUNCTION do_test () |
185 | #include "../test-skeleton.c" |