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glibc/iconv-reset-input-buffer.patch
Andreas Schwab 06263ee4ef Accepting request 572614 from home:Andreas_Schwab:Factory 
- Update to glibc 2.27
  * Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin, cosf,
    sinf, sincosf and tan with FMA
  * Optimized x86-64 trunc and truncf for processors with SSE4.1
  * Optimized generic expf, exp2f, logf, log2f, powf, sinf, cosf and
    sincosf
  * In order to support faster and safer process termination the malloc API
    family of functions will no longer print a failure address and stack
    backtrace after detecting heap corruption
  * The abort function terminates the process immediately, without flushing
    stdio streams
  * On platforms where long double has the IEEE binary128 format (aarch64,
    alpha, mips64, riscv, s390 and sparc), the math library now implements
    _Float128 interfaces for that type, as defined by ISO/IEC TS 18661-3:2015
    These are the same interfaces added in version 2.26 for some platforms where
    this format is supported but is not the format of long double
  * On platforms with support for _Float64x (aarch64, alpha, i386, ia64,
    mips64, powerpc64le, riscv, s390, sparc and x86_64), the math library now
    implements interfaces for that type, as defined by ISO/IEC TS
    18661-3:2015
  * The math library now implements interfaces for the _Float32, _Float64 and
    _Float32x types, as defined by ISO/IEC TS 18661-3:2015
  * glibc now implements the memfd_create and mlock2 functions on Linux
  * Support for memory protection keys was added
  * The copy_file_range function was added
  * The ldconfig utility now processes `include' directives using the C/POSIX
    collation ordering
  * Support for two grammatical forms of month names has been added
  * Support for the RISC-V ISA running on Linux has been added
  * Statically compiled applications attempting to load locales compiled for the

OBS-URL: https://build.opensuse.org/request/show/572614
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=491
2018-02-05 10:33:11 +00:00

331 lines
11 KiB
Diff
Raw Blame History

Fix iconv buffer handling with IGNORE error handler (bug #18830)
[BZ #18830]
* iconv/skeleton.c (FUNCTION_NAME): Use RESET_INPUT_BUFFER only if
no irreversible characters occurred.
* iconv/gconv_simple.c (internal_ucs4_loop)
(internal_ucs4_loop_unaligned, internal_ucs4_loop_single)
(ucs4_internal_loop, ucs4_internal_loop_unaligned)
(ucs4_internal_loop_single, internal_ucs4le_loop)
(internal_ucs4le_loop_unaligned, internal_ucs4le_loop_single)
(ucs4le_internal_loop, ucs4le_internal_loop_unaligned)
(ucs4le_internal_loop_single): Add const to outend.
* iconv/Makefile (tests): Add tst-iconv7.
* iconv/tst-iconv7.c: New file.
Index: glibc-2.27/iconv/Makefile
===================================================================
--- glibc-2.27.orig/iconv/Makefile
+++ glibc-2.27/iconv/Makefile
@@ -43,7 +43,8 @@ CFLAGS-charmap.c += -DCHARMAP_PATH='"$(i
CFLAGS-linereader.c += -DNO_TRANSLITERATION
CFLAGS-simple-hash.c += -I../locale
-tests = tst-iconv1 tst-iconv2 tst-iconv3 tst-iconv4 tst-iconv5 tst-iconv6
+tests = tst-iconv1 tst-iconv2 tst-iconv3 tst-iconv4 tst-iconv5 tst-iconv6 \
+ tst-iconv7
others = iconv_prog iconvconfig
install-others-programs = $(inst_bindir)/iconv
Index: glibc-2.27/iconv/gconv_simple.c
===================================================================
--- glibc-2.27.orig/iconv/gconv_simple.c
+++ glibc-2.27/iconv/gconv_simple.c
@@ -76,7 +76,7 @@ __attribute ((always_inline))
internal_ucs4_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -120,7 +120,8 @@ internal_ucs4_loop_unaligned (struct __g
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -169,7 +170,8 @@ internal_ucs4_loop_single (struct __gcon
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -231,7 +233,7 @@ __attribute ((always_inline))
ucs4_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -298,7 +300,8 @@ ucs4_internal_loop_unaligned (struct __g
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -368,7 +371,8 @@ ucs4_internal_loop_single (struct __gcon
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -443,7 +447,7 @@ __attribute ((always_inline))
internal_ucs4le_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -488,7 +492,8 @@ internal_ucs4le_loop_unaligned (struct _
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -540,7 +545,8 @@ internal_ucs4le_loop_single (struct __gc
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
@@ -601,7 +607,7 @@ __attribute ((always_inline))
ucs4le_internal_loop (struct __gconv_step *step,
struct __gconv_step_data *step_data,
const unsigned char **inptrp, const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp, const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -671,7 +677,8 @@ ucs4le_internal_loop_unaligned (struct _
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -745,7 +752,8 @@ ucs4le_internal_loop_single (struct __gc
struct __gconv_step_data *step_data,
const unsigned char **inptrp,
const unsigned char *inend,
- unsigned char **outptrp, unsigned char *outend,
+ unsigned char **outptrp,
+ const unsigned char *outend,
size_t *irreversible)
{
mbstate_t *state = step_data->__statep;
Index: glibc-2.27/iconv/skeleton.c
===================================================================
--- glibc-2.27.orig/iconv/skeleton.c
+++ glibc-2.27/iconv/skeleton.c
@@ -597,6 +597,10 @@ FUNCTION_NAME (struct __gconv_step *step
inptr = *inptrp;
/* The outbuf buffer is empty. */
outstart = outbuf;
+#ifdef RESET_INPUT_BUFFER
+ size_t loop_irreversible
+ = lirreversible + (irreversible ? *irreversible : 0);
+#endif
#ifdef SAVE_RESET_STATE
SAVE_RESET_STATE (1);
@@ -671,8 +675,16 @@ FUNCTION_NAME (struct __gconv_step *step
if (__glibc_unlikely (outerr != outbuf))
{
#ifdef RESET_INPUT_BUFFER
- RESET_INPUT_BUFFER;
-#else
+ if (loop_irreversible
+ == lirreversible + (irreversible ? *irreversible : 0))
+ {
+ /* RESET_INPUT_BUFFER can only work if there
+ were no irreversible characters during the
+ last loop. */
+ RESET_INPUT_BUFFER;
+ goto done_reset;
+ }
+#endif
/* We have a problem in one of the functions below.
Undo the conversion upto the error point. */
size_t nstatus __attribute__ ((unused));
@@ -682,9 +694,9 @@ FUNCTION_NAME (struct __gconv_step *step
outbuf = outstart;
/* Restore the state. */
-# ifdef SAVE_RESET_STATE
+#ifdef SAVE_RESET_STATE
SAVE_RESET_STATE (0);
-# endif
+#endif
if (__glibc_likely (!unaligned))
{
@@ -701,7 +713,7 @@ FUNCTION_NAME (struct __gconv_step *step
lirreversiblep
EXTRA_LOOP_ARGS);
}
-# if POSSIBLY_UNALIGNED
+#if POSSIBLY_UNALIGNED
else
{
if (FROM_DIRECTION)
@@ -720,7 +732,7 @@ FUNCTION_NAME (struct __gconv_step *step
lirreversiblep
EXTRA_LOOP_ARGS);
}
-# endif
+#endif
/* We must run out of output buffer space in this
rerun. */
@@ -731,9 +743,11 @@ FUNCTION_NAME (struct __gconv_step *step
the invocation counter. */
if (__glibc_unlikely (outbuf == outstart))
--data->__invocation_counter;
-#endif /* reset input buffer */
}
+#ifdef RESET_INPUT_BUFFER
+ done_reset:
+#endif
/* Change the status. */
status = result;
}
Index: glibc-2.27/iconv/tst-iconv7.c
===================================================================
--- /dev/null
+++ glibc-2.27/iconv/tst-iconv7.c
@@ -0,0 +1,68 @@
+/* Test iconv buffer handling with the IGNORE error handler.
+ 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/>. */
+
+/* Derived from BZ #18830 */
+#include <errno.h>
+#include <iconv.h>
+#include <stdio.h>
+
+
+static int
+do_test (void)
+{
+ iconv_t cd = iconv_open ("ASCII//IGNORE", "ASCII");
+ if (cd == (iconv_t) -1)
+ {
+ puts ("iconv_open failed");
+ return 1;
+ }
+
+ char input[5 + 3] = { 0, 0, 0, 0, 0, '1', '\200', '2' };
+ char *inptr = input;
+ size_t insize = sizeof (input);
+ char output[5];
+ char *outptr = output;
+ size_t outsize = sizeof (output);
+
+ size_t ret = iconv (cd, &inptr, &insize, &outptr, &outsize);
+ if (ret != (size_t) -1)
+ {
+ puts ("iconv succeeded");
+ return 1;
+ }
+ if (errno != E2BIG)
+ {
+ puts ("iconv did not set errno to E2BIG");
+ return 1;
+ }
+ if (inptr != input + sizeof (output) - outsize)
+ {
+ printf ("iconv consumed %td characters\n", inptr - input);
+ return 1;
+ }
+
+ if (iconv_close (cd) == -1)
+ {
+ puts ("iconv_close failed");
+ return 1;
+ }
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
Index: glibc-2.27/sysdeps/s390/multiarch/gconv_simple.c
===================================================================
--- glibc-2.27.orig/sysdeps/s390/multiarch/gconv_simple.c
+++ glibc-2.27/sysdeps/s390/multiarch/gconv_simple.c
@@ -403,7 +403,7 @@ ICONV_VX_NAME (internal_ucs4le_loop) (st
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
const unsigned char *inptr = *inptrp;
@@ -503,7 +503,7 @@ ICONV_VX_NAME (ucs4_internal_loop) (stru
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
@@ -630,7 +630,7 @@ ICONV_VX_NAME (ucs4le_internal_loop) (st
const unsigned char **inptrp,
const unsigned char *inend,
unsigned char **outptrp,
- unsigned char *outend,
+ const unsigned char *outend,
size_t *irreversible)
{
int flags = step_data->__flags;
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