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/* Tests for loading and unloading of iconv modules.
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Copyright (C) 2000-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <iconv.h>
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#include <mcheck.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* How many load/unload operations do we do. */
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#define TEST_ROUNDS 5000
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enum state { unloaded, loaded };
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struct
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{
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const char *name;
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enum state state;
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iconv_t cd;
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} modules[] =
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{
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#define MODULE(Name) { .name = #Name, .state = unloaded }
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MODULE (ISO-8859-1),
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MODULE (ISO-8859-2),
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MODULE (ISO-8859-3),
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MODULE (ISO-8859-4),
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MODULE (ISO-8859-5),
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MODULE (ISO-8859-6),
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MODULE (ISO-8859-15),
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MODULE (EUC-JP),
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MODULE (EUC-KR),
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MODULE (EUC-CN),
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MODULE (EUC-TW),
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MODULE (SJIS),
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MODULE (UHC),
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MODULE (KOI8-R),
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MODULE (BIG5),
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MODULE (BIG5HKSCS)
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};
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#define nmodules (sizeof (modules) / sizeof (modules[0]))
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/* The test data. */
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static const char inbuf[] =
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"The first step is the function to create a handle.\n"
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"\n"
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" - Function: iconv_t iconv_open (const char *TOCODE, const char\n"
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" *FROMCODE)\n"
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" The `iconv_open' function has to be used before starting a\n"
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" conversion. The two parameters this function takes determine the\n"
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" source and destination character set for the conversion and if the\n"
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" implementation has the possibility to perform such a conversion the\n"
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" function returns a handle.\n"
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"\n"
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" If the wanted conversion is not available the function returns\n"
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" `(iconv_t) -1'. In this case the global variable `errno' can have\n"
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" the following values:\n"
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"\n"
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" `EMFILE'\n"
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" The process already has `OPEN_MAX' file descriptors open.\n"
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"\n"
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" `ENFILE'\n"
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" The system limit of open file is reached.\n"
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"\n"
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" `ENOMEM'\n"
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" Not enough memory to carry out the operation.\n"
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"\n"
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" `EINVAL'\n"
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" The conversion from FROMCODE to TOCODE is not supported.\n"
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"\n"
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" It is not possible to use the same descriptor in different threads\n"
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" to perform independent conversions. Within the data structures\n"
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" associated with the descriptor there is information about the\n"
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" conversion state. This must not be messed up by using it in\n"
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" different conversions.\n"
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"\n"
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" An `iconv' descriptor is like a file descriptor as for every use a\n"
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" new descriptor must be created. The descriptor does not stand for\n"
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" all of the conversions from FROMSET to TOSET.\n"
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"\n"
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" The GNU C library implementation of `iconv_open' has one\n"
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" significant extension to other implementations. To ease the\n"
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" extension of the set of available conversions the implementation\n"
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" allows storing the necessary files with data and code in\n"
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" arbitrarily many directories. How this extension has to be\n"
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" written will be explained below (*note glibc iconv\n"
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" Implementation::). Here it is only important to say that all\n"
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" directories mentioned in the `GCONV_PATH' environment variable are\n"
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" considered if they contain a file `gconv-modules'. These\n"
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" directories need not necessarily be created by the system\n"
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" administrator. In fact, this extension is introduced to help users\n"
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" writing and using their own, new conversions. Of course this does\n"
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" not work for security reasons in SUID binaries; in this case only\n"
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" the system directory is considered and this normally is\n"
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" `PREFIX/lib/gconv'. The `GCONV_PATH' environment variable is\n"
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" examined exactly once at the first call of the `iconv_open'\n"
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" function. Later modifications of the variable have no effect.\n";
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static int
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do_test (void)
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{
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size_t count = TEST_ROUNDS;
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int result = 0;
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mtrace ();
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/* Just a seed. */
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srandom (TEST_ROUNDS);
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while (count--)
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{
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int idx = random () % nmodules;
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if (modules[idx].state == unloaded)
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{
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char outbuf[10000];
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char *inptr = (char *) inbuf;
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size_t insize = sizeof (inbuf) - 1;
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char *outptr = outbuf;
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size_t outsize = sizeof (outbuf);
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/* Load the module and do the conversion. */
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modules[idx].cd = iconv_open ("UTF-8", modules[idx].name);
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if (modules[idx].cd == (iconv_t) -1)
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{
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printf ("opening of %s failed: %m\n", modules[idx].name);
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result = 1;
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break;
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}
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modules[idx].state = loaded;
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/* Now a simple test. */
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if (iconv (modules[idx].cd, &inptr, &insize, &outptr, &outsize) != 0
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|| *inptr != '\0')
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{
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printf ("conversion with %s failed\n", modules[idx].name);
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result = 1;
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}
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}
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else
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{
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/* Unload the module. */
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if (iconv_close (modules[idx].cd) != 0)
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{
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printf ("closing of %s failed: %m\n", modules[idx].name);
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result = 1;
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break;
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}
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modules[idx].state = unloaded;
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}
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}
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for (count = 0; count < nmodules; ++count)
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if (modules[count].state == loaded && iconv_close (modules[count].cd) != 0)
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{
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printf ("closing of %s failed: %m\n", modules[count].name);
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result = 1;
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}
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return result;
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}
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#define TIMEOUT 30
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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