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Don't emit invalid extra shift character at block boundary by iconv (bug 17197)

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This commit is contained in:
Andreas Schwab 2014-07-24 17:32:56 +02:00
parent 04ae79a363
commit 42d6443faf
8 changed files with 116 additions and 6 deletions
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13
ChangeLog
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@ -1,3 +1,16 @@
2015-12-15 Andreas Schwab <schwab@suse.de>
[BZ #17197]
* iconvdata/ibm930.c (BODY for TO_LOOP): Record current DBCS state
immediately after emitting SI.
* iconvdata/ibm933.c (BODY for TO_LOOP): Likewise.
* iconvdata/ibm935.c (BODY for TO_LOOP): Likewise.
* iconvdata/ibm937.c (BODY for TO_LOOP): Likewise.
* iconvdata/ibm939.c (BODY for TO_LOOP): Likewise.
* iconvdata/bug-iconv10.c: New file.
* iconvdata/Makefile (tests): Add bug-iconv10.
($(objpfx)bug-iconv10.out): New rule.
2015-12-15 Florian Weimer <fweimer@redhat.com>
* dlfcn/tst-rec-dlopen.c (call_func): Cast dlsym result, fixing an

5
iconvdata/Makefile
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@ -67,7 +67,8 @@ modules.so := $(addsuffix .so, $(modules))
ifeq (yes,$(build-shared))
tests = bug-iconv1 bug-iconv2 tst-loading tst-e2big tst-iconv4 bug-iconv4 \
tst-iconv6 bug-iconv5 bug-iconv6 tst-iconv7 bug-iconv8 bug-iconv9
tst-iconv6 bug-iconv5 bug-iconv6 tst-iconv7 bug-iconv8 bug-iconv9 \
bug-iconv10
ifeq ($(have-thread-library),yes)
tests += bug-iconv3
endif
@ -306,6 +307,8 @@ $(objpfx)tst-iconv4.out: $(objpfx)gconv-modules \
$(addprefix $(objpfx),$(modules.so))
$(objpfx)tst-iconv7.out: $(objpfx)gconv-modules \
$(addprefix $(objpfx),$(modules.so))
$(objpfx)bug-iconv10.out: $(objpfx)gconv-modules \
$(addprefix $(objpfx),$(modules.so))
$(objpfx)iconv-test.out: run-iconv-test.sh $(objpfx)gconv-modules \
$(addprefix $(objpfx),$(modules.so)) \

94
iconvdata/bug-iconv10.c Normal file
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@ -0,0 +1,94 @@
/* bug 17197: check that iconv doesn't emit invalid extra shift character
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <iconv.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
static int
do_test (void)
{
static const char *charsets[] =
{ "IBM930", "IBM933", "IBM935", "IBM937", "IBM939" };
static const char *expects[] =
{ "\016\x44\x4d\017", "\016\x41\x63\017", "\016\x44\x4d\017",
"\016\x44\x4d\017", "\016\x44\x4d\017" };
int ret = 0;
for (int i = 0; i < sizeof (charsets) / sizeof (*charsets); i++)
{
const char *charset = charsets[i];
iconv_t cd = iconv_open (charset, "UTF-8");
if (cd == (iconv_t) -1)
{
printf ("iconv_open failed (%s)\n", charset);
ret = 1;
continue;
}
char input[] = "\xe2\x88\x9e.";
const char *expect1 = expects[i];
const char expect2[] = "\x4b";
size_t input_len = sizeof (input);
char output[4];
size_t inlen = input_len;
size_t outlen = sizeof (output);
char *inptr = input;
char *outptr = output;
/* First round: expect conversion to stop before ".". */
size_t r = iconv (cd, &inptr, &inlen, &outptr, &outlen);
if (r != -1
|| errno != E2BIG
|| inlen != 2
|| inptr != input + input_len - 2
|| outlen != 0
|| memcmp (output, expect1, sizeof (output)) != 0)
{
printf ("wrong first conversion (%s)", charset);
ret = 1;
goto do_close;
}
outlen = sizeof (output);
outptr = output;
r = iconv (cd, &inptr, &inlen, &outptr, &outlen);
if (r != 0
|| inlen != 0
|| outlen != sizeof (output) - sizeof (expect2)
|| memcmp (output, expect2, sizeof (expect2)) != 0)
{
printf ("wrong second conversion (%s)\n", charset);
ret = 1;
}
do_close:
if (iconv_close (cd) != 0)
{
printf ("iconv_close failed (%s)\n", charset);
ret = 1;
continue;
}
}
return ret;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

2
iconvdata/ibm930.c
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@ -261,6 +261,7 @@ enum
break; \
} \
*outptr++ = SI; \
curcs = sb; \
} \
\
if (__glibc_unlikely (outptr + 1 > outend)) \
@ -274,7 +275,6 @@ enum
*outptr++ = 0x5b; \
else \
*outptr++ = cp[0]; \
curcs = sb; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \

2
iconvdata/ibm933.c
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@ -259,6 +259,7 @@ enum
break; \
} \
*outptr++ = SI; \
curcs = sb; \
} \
\
if (__glibc_unlikely (outptr + 1 > outend)) \
@ -267,7 +268,6 @@ enum
break; \
} \
*outptr++ = cp[0]; \
curcs = sb; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \

2
iconvdata/ibm935.c
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@ -260,6 +260,7 @@ enum
break; \
} \
*outptr++ = SI; \
curcs = sb; \
} \
\
if (__glibc_unlikely (outptr + 1 > outend)) \
@ -268,7 +269,6 @@ enum
break; \
} \
*outptr++ = cp[0]; \
curcs = sb; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \

2
iconvdata/ibm937.c
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@ -260,6 +260,7 @@ enum
break; \
} \
*outptr++ = SI; \
curcs = sb; \
} \
\
if (__glibc_unlikely (outptr + 1 > outend)) \
@ -268,7 +269,6 @@ enum
break; \
} \
*outptr++ = cp[0]; \
curcs = sb; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \

2
iconvdata/ibm939.c
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@ -260,6 +260,7 @@ enum
break; \
} \
*outptr++ = SI; \
curcs = sb; \
} \
\
if (__glibc_unlikely (outptr + 1 > outend)) \
@ -273,7 +274,6 @@ enum
*outptr++ = 0xb2; \
else \
*outptr++ = cp[0]; \
curcs = sb; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \