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106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/* Test for a tricky E2BIG situation.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Bruno Haible <bruno@clisp.org>, 2002.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <alloca.h>
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#include <errno.h>
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#include <iconv.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* In EUC-JISX0213 and TSCII, a single input character can convert to
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a sequence of two or more Unicode characters. When the output buffer
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has room for less Unicode characters than would be produced with an
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unconstrained output buffer, the conversion must give errno = E2BIG. */
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void
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test (const char *encoding, char *inbuf, size_t inbufsize, size_t outbufsize)
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{
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char *outbuf = alloca (outbufsize);
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iconv_t cd;
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char *inptr;
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size_t inlen;
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char *outptr;
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size_t outlen;
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int result;
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bool empty_input;
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bool empty_output;
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cd = iconv_open ("UTF-8", encoding);
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if (cd == (iconv_t) -1)
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{
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fprintf (stderr, "cannot convert from %s\n", encoding);
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exit (1);
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}
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inptr = inbuf;
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inlen = inbufsize;
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outptr = outbuf;
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outlen = outbufsize;
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result = iconv (cd, &inptr, &inlen, &outptr, &outlen);
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if (!(result == -1 && errno == E2BIG))
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{
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fprintf (stderr, "%s: wrong iconv result: %d/%d (%m)\n",
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encoding, result, errno);
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exit (1);
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}
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empty_input = (inptr == inbuf && inlen == inbufsize);
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empty_output = (outptr == outbuf && outlen == outbufsize);
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if (!empty_input && empty_output)
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{
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fprintf (stderr, "%s: ate %d input bytes\n", encoding, inptr - inbuf);
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exit (1);
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}
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if (empty_input && !empty_output)
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{
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fprintf (stderr, "%s: produced %d output bytes\n",
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encoding, outptr - outbuf);
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exit (1);
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}
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iconv_close (cd);
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}
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void
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test_euc_jisx0213 (void)
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{
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char inbuf[2] = { 0xa4, 0xf7 };
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test ("EUC-JISX0213", inbuf, sizeof (inbuf), 3);
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}
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void
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test_tscii (void)
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{
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char inbuf[1] = { 0x82 };
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test ("TSCII", inbuf, sizeof (inbuf), 3);
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test ("TSCII", inbuf, sizeof (inbuf), 6);
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test ("TSCII", inbuf, sizeof (inbuf), 9);
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}
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int
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main (void)
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{
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test_euc_jisx0213 ();
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test_tscii ();
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return 0;
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}
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