mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/* Test for a tricky E2BIG situation.
|
|
Copyright (C) 2002-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Bruno Haible <bruno@clisp.org>, 2002.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <alloca.h>
|
|
#include <errno.h>
|
|
#include <iconv.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
/* In EUC-JISX0213 and TSCII, a single input character can convert to
|
|
a sequence of two or more Unicode characters. When the output buffer
|
|
has room for less Unicode characters than would be produced with an
|
|
unconstrained output buffer, the conversion must give errno = E2BIG. */
|
|
|
|
void
|
|
test (const char *encoding, char *inbuf, size_t inbufsize, size_t outbufsize)
|
|
{
|
|
char *outbuf = alloca (outbufsize);
|
|
iconv_t cd;
|
|
char *inptr;
|
|
size_t inlen;
|
|
char *outptr;
|
|
size_t outlen;
|
|
int result;
|
|
bool empty_input;
|
|
bool empty_output;
|
|
|
|
cd = iconv_open ("UTF-8", encoding);
|
|
if (cd == (iconv_t) -1)
|
|
{
|
|
fprintf (stderr, "cannot convert from %s\n", encoding);
|
|
exit (1);
|
|
}
|
|
|
|
inptr = inbuf;
|
|
inlen = inbufsize;
|
|
outptr = outbuf;
|
|
outlen = outbufsize;
|
|
|
|
result = iconv (cd, &inptr, &inlen, &outptr, &outlen);
|
|
if (!(result == -1 && errno == E2BIG))
|
|
{
|
|
fprintf (stderr, "%s: wrong iconv result: %d/%d (%m)\n",
|
|
encoding, result, errno);
|
|
exit (1);
|
|
}
|
|
empty_input = (inptr == inbuf && inlen == inbufsize);
|
|
empty_output = (outptr == outbuf && outlen == outbufsize);
|
|
|
|
if (!empty_input && empty_output)
|
|
{
|
|
fprintf (stderr, "%s: ate %td input bytes\n", encoding, inptr - inbuf);
|
|
exit (1);
|
|
}
|
|
if (empty_input && !empty_output)
|
|
{
|
|
fprintf (stderr, "%s: produced %td output bytes\n",
|
|
encoding, outptr - outbuf);
|
|
exit (1);
|
|
}
|
|
|
|
iconv_close (cd);
|
|
}
|
|
|
|
void
|
|
test_euc_jisx0213 (void)
|
|
{
|
|
char inbuf[2] = { 0xa4, 0xf7 };
|
|
test ("EUC-JISX0213", inbuf, sizeof (inbuf), 3);
|
|
}
|
|
|
|
void
|
|
test_tscii (void)
|
|
{
|
|
char inbuf[1] = { 0x82 };
|
|
test ("TSCII", inbuf, sizeof (inbuf), 3);
|
|
test ("TSCII", inbuf, sizeof (inbuf), 6);
|
|
test ("TSCII", inbuf, sizeof (inbuf), 9);
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
test_euc_jisx0213 ();
|
|
test_tscii ();
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|