116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/* bug 19432: iconv rejects redundant escape sequences in IBM903,
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IBM905, IBM907, and IBM909
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Copyright (C) 2016-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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<https://www.gnu.org/licenses/>. */
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#include <iconv.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <limits.h>
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// The longest test input sequence.
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#define MAXINBYTES 8
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#define MAXOUTBYTES (MAXINBYTES * MB_LEN_MAX)
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/* Verify that a conversion of the INPUT sequence consisting of
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INBYTESLEFT bytes in the encoding specified by the codeset
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named by FROM_SET is successful.
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Return 0 on success, non-zero on iconv() failure. */
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static int
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test_ibm93x (const char *from_set, const char *input, size_t inbytesleft)
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{
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const char to_set[] = "UTF-8";
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iconv_t cd = iconv_open (to_set, from_set);
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if (cd == (iconv_t) -1)
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{
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printf ("iconv_open(\"%s\", \"%s\"): %s\n",
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from_set, to_set, strerror (errno));
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return 1;
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}
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char output [MAXOUTBYTES];
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size_t outbytesleft = sizeof output;
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char *inbuf = (char*)input;
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char *outbuf = output;
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printf ("iconv(cd, %p, %zu, %p, %zu)\n",
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inbuf, inbytesleft, outbuf, outbytesleft);
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errno = 0;
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size_t ret = iconv (cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
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printf (" ==> %zu: %s\n"
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" inbuf%+td, inbytesleft=%zu, outbuf%+td, outbytesleft=%zu\n",
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ret, strerror (errno),
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inbuf - input, inbytesleft, outbuf - output, outbytesleft);
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// Return 0 on success, non-zero on iconv() failure.
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return ret == (size_t)-1 || errno;
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}
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static int
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do_test (void)
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{
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// State-dependent encodings to exercise.
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static const char* const to_code[] = {
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"IBM930", "IBM933", "IBM935", "IBM937", "IBM939"
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};
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static const size_t ncodesets = sizeof to_code / sizeof *to_code;
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static const struct {
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char txt[MAXINBYTES];
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size_t len;
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} input[] = {
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#define DATA(s) { s, sizeof s - 1 }
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/* <SI>: denotes the shift-in 1-byte escape sequence, changing
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the encoder from a sigle-byte encoding to multibyte
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<SO>: denotes the shift-out 1-byte escape sequence, switching
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the encoder from a multibyte to a single-byte state */
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DATA ("\x0e"), // <SI> (not redundant)
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DATA ("\x0f"), // <S0> (redundant with initial state)
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DATA ("\x0e\x0e"), // <SI><SI>
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DATA ("\x0e\x0f\x0f"), // <SI><SO><SO>
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DATA ("\x0f\x0f"), // <SO><SO>
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DATA ("\x0f\x0e\x0e"), // <SO><SI><SI>
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DATA ("\x0e\x0f\xc7\x0f"), // <SI><SO><G><SO>
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DATA ("\xc7\x0f") // <G><SO> (redundant with initial state)
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};
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static const size_t ninputs = sizeof input / sizeof *input;
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int ret = 0;
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size_t i, j;
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/* Iterate over the IBM93x codesets above and exercise each with
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the input sequences above. */
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for (i = 0; i != ncodesets; ++i)
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for (j = 0; j != ninputs; ++j)
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ret += test_ibm93x (to_code [i], input [i].txt, input [i].len);
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return ret;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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