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Implement strlcpy and strlcat [BZ #178]

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These functions are about to be added to POSIX, under Austin Group
issue 986.

The fortified strlcat implementation does not raise SIGABRT if the
destination buffer does not contain a null terminator, it just
inherits the non-failing regular strlcat behavior.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Florian Weimer 2023-06-14 18:10:08 +02:00
parent 7ba426a111
commit 454a20c875
50 changed files with 560 additions and 0 deletions
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3
NEWS
View File

@ -35,6 +35,9 @@ Major new features:
The symbol names follow the AArch64 vector ABI, they are declared
in math.h and have to be called manually at this point.
* The strlcpy and strlcat functions have been added. They are derived
from OpenBSD, and are expected to be added to a future POSIX version.
Deprecated and removed features, and other changes affecting compatibility:
* In the Linux kernel for the hppa/parisc architecture some of the

2
debug/Makefile
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@ -84,6 +84,8 @@ routines = \
stpncpy_chk \
strcat_chk \
strcpy_chk \
strlcat_chk \
strlcpy_chk \
strncat_chk \
strncpy_chk \
swprintf_chk \

4
debug/Versions
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@ -58,6 +58,10 @@ libc {
GLIBC_2.25 {
__explicit_bzero_chk;
}
GLIBC_2.38 {
__strlcat_chk;
__strlcpy_chk;
}
GLIBC_PRIVATE {
__fortify_fail;
}

31
debug/strlcat_chk.c Normal file
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@ -0,0 +1,31 @@
/* Fortified version of strlcat.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <string.h>
/* Check that the user-supplied size does not exceed the
compiler-determined size, and then forward to strlcat. */
size_t
__strlcat_chk (char *__restrict s1, const char *__restrict s2,
size_t n, size_t s1len)
{
if (__glibc_unlikely (s1len < n))
__chk_fail ();
return __strlcat (s1, s2, n);
}

31
debug/strlcpy_chk.c Normal file
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@ -0,0 +1,31 @@
/* Fortified version of strlcpy.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <string.h>
/* Check that the user-supplied size does not exceed the
compiler-determined size, and then forward to strlcpy. */
size_t
__strlcpy_chk (char *__restrict s1, const char *__restrict s2,
size_t n, size_t s1len)
{
if (__glibc_unlikely (s1len < n))
__chk_fail ();
return __strlcpy (s1, s2, n);
}

31
debug/tst-fortify.c
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@ -535,6 +535,20 @@ do_test (void)
strncpy (a.buf1 + (O + 6), "X", l0 + 4);
CHK_FAIL_END
CHK_FAIL_START
strlcpy (a.buf1 + (O + 6), "X", 4);
CHK_FAIL_END
CHK_FAIL_START
strlcpy (a.buf1 + (O + 6), "X", l0 + 4);
CHK_FAIL_END
{
char *volatile buf2 = buf;
if (strlcpy (buf2, "a", sizeof (buf) + 1) != 1)
FAIL ();
}
# if !defined __cplusplus || defined __va_arg_pack
CHK_FAIL_START
sprintf (a.buf1 + (O + 7), "%d", num1);
@ -558,6 +572,23 @@ do_test (void)
CHK_FAIL_START
strncat (a.buf1, "ZYXWV", l0 + 3);
CHK_FAIL_END
memset (a.buf1, 0, sizeof (a.buf1));
CHK_FAIL_START
strlcat (a.buf1 + (O + 6), "X", 4);
CHK_FAIL_END
memset (a.buf1, 0, sizeof (a.buf1));
CHK_FAIL_START
strlcat (a.buf1 + (O + 6), "X", l0 + 4);
CHK_FAIL_END
{
buf[0] = '\0';
char *volatile buf2 = buf;
if (strlcat (buf2, "a", sizeof (buf) + 1) != 1)
FAIL ();
}
#endif

4
include/string.h
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@ -88,6 +88,10 @@ libc_hidden_proto (__stpcpy)
# define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
#endif
libc_hidden_proto (__stpncpy)
extern __typeof (strlcpy) __strlcpy;
libc_hidden_proto (__strlcpy)
extern __typeof (strlcat) __strlcat;
libc_hidden_proto (__strlcat)
libc_hidden_proto (__rawmemchr)
libc_hidden_proto (__strcasecmp)
libc_hidden_proto (__strcasecmp_l)

4
string/Makefile
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@ -92,6 +92,8 @@ routines := \
strerrorname_np \
strfry \
string-inlines \
strlcat \
strlcpy \
strlen \
strncase \
strncase_l \
@ -177,6 +179,8 @@ tests := \
tst-inlcall \
tst-memmove-overflow \
tst-strfry \
tst-strlcat \
tst-strlcpy \
tst-strlen \
tst-strtok \
tst-strtok_r \

4
string/Versions
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@ -92,4 +92,8 @@ libc {
GLIBC_2.35 {
__memcmpeq;
}
GLIBC_2.38 {
strlcat;
strlcpy;
}
}

36
string/bits/string_fortified.h
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@ -139,4 +139,40 @@ __NTH (strncat (char *__restrict __dest, const char *__restrict __src,
__glibc_objsize (__dest));
}
#ifdef __USE_MISC
extern size_t __strlcpy_chk (char *__dest, const char *__src, size_t __n,
size_t __destlen) __THROW;
extern size_t __REDIRECT_NTH (__strlcpy_alias,
(char *__dest, const char *__src, size_t __n),
strlcpy);
__fortify_function size_t
__NTH (strlcpy (char *__restrict __dest, const char *__restrict __src,
size_t __n))
{
if (__glibc_objsize (__dest) != (size_t) -1
&& (!__builtin_constant_p (__n > __glibc_objsize (__dest))
|| __n > __glibc_objsize (__dest)))
return __strlcpy_chk (__dest, __src, __n, __glibc_objsize (__dest));
return __strlcpy_alias (__dest, __src, __n);
}
extern size_t __strlcat_chk (char *__dest, const char *__src, size_t __n,
size_t __destlen) __THROW;
extern size_t __REDIRECT_NTH (__strlcat_alias,
(char *__dest, const char *__src, size_t __n),
strlcat);
__fortify_function size_t
__NTH (strlcat (char *__restrict __dest, const char *__restrict __src,
size_t __n))
{
if (__glibc_objsize (__dest) != (size_t) -1
&& (!__builtin_constant_p (__n > __glibc_objsize (__dest))
|| __n > __glibc_objsize (__dest)))
return __strlcat_chk (__dest, __src, __n, __glibc_objsize (__dest));
return __strlcat_alias (__dest, __src, __n);
}
#endif /* __USE_MISC */
#endif /* bits/string_fortified.h */

13
string/string.h
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@ -501,6 +501,19 @@ extern char *stpncpy (char *__restrict __dest,
__THROW __nonnull ((1, 2));
#endif
#ifdef __USE_MISC
/* Copy at most N - 1 characters from SRC to DEST. */
extern size_t strlcpy (char *__restrict __dest,
const char *__restrict __src, size_t __n)
__THROW __nonnull ((1, 2)) __attr_access ((__write_only__, 1, 3));
/* Append SRC to DEST, possibly with truncation to keep the total size
below N. */
extern size_t strlcat (char *__restrict __dest,
const char *__restrict __src, size_t __n)
__THROW __nonnull ((1, 2)) __attr_access ((__read_write__, 1, 3));
#endif
#ifdef __USE_GNU
/* Compare S1 and S2 as strings holding name & indices/version numbers. */
extern int strverscmp (const char *__s1, const char *__s2)

59
string/strlcat.c Normal file
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@ -0,0 +1,59 @@
/* Append a null-terminated string to another string, with length checking.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <stdint.h>
#include <string.h>
size_t
__strlcat (char *__restrict dest, const char *__restrict src, size_t size)
{
size_t src_length = strlen (src);
/* Our implementation strlcat supports dest == NULL if size == 0
(for consistency with snprintf and strlcpy), but strnlen does
not, so we have to cover this case explicitly. */
if (size == 0)
return src_length;
size_t dest_length = __strnlen (dest, size);
if (dest_length != size)
{
/* Copy at most the remaining number of characters in the
destination buffer. Leave for the NUL terminator. */
size_t to_copy = size - dest_length - 1;
/* But not more than what is available in the source string. */
if (to_copy > src_length)
to_copy = src_length;
char *target = dest + dest_length;
memcpy (target, src, to_copy);
target[to_copy] = '\0';
}
/* If the sum wraps around, we have more than SIZE_MAX + 2 bytes in
the two input strings (including both null terminators). If each
byte in the address space can be assigned a unique size_t value
(which the static_assert checks), then by the pigeonhole
principle, the two input strings must overlap, which is
undefined. */
_Static_assert (sizeof (uintptr_t) == sizeof (size_t),
"theoretical maximum object size covers address space");
return dest_length + src_length;
}
libc_hidden_def (__strlcat)
weak_alias (__strlcat, strlcat)

46
string/strlcpy.c Normal file
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@ -0,0 +1,46 @@
/* Copy a null-terminated string to a fixed-size buffer, with length checking.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <string.h>
size_t
__strlcpy (char *__restrict dest, const char *__restrict src, size_t size)
{
size_t src_length = strlen (src);
if (__glibc_unlikely (src_length >= size))
{
if (size > 0)
{
/* Copy the leading portion of the string. The last
character is subsequently overwritten with the NUL
terminator, but the destination size is usually a
multiple of a small power of two, so writing it twice
should be more efficient than copying an odd number of
bytes. */
memcpy (dest, src, size);
dest[size - 1] = '\0';
}
}
else
/* Copy the string and its terminating NUL character. */
memcpy (dest, src, src_length + 1);
return src_length;
}
libc_hidden_def (__strlcpy)
weak_alias (__strlcpy, strlcpy)

84
string/tst-strlcat.c Normal file
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@ -0,0 +1,84 @@
/* Test the strlcat function.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <support/check.h>
static int
do_test (void)
{
struct {
char buf1[16];
char buf2[16];
} s;
/* Nothing is written to the destination if its size is 0. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcat (s.buf1, "", 0), 0);
TEST_COMPARE_BLOB (&s, sizeof (s), "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
TEST_COMPARE (strlcat (s.buf1, "Hello!", 0), 6);
TEST_COMPARE_BLOB (&s, sizeof (s), "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* No bytes are are modified in the target buffer if the source
string is short enough. */
memset (&s, '@', sizeof (s));
strcpy (s.buf1, "He");
TEST_COMPARE (strlcat (s.buf1, "llo!", sizeof (s.buf1)), 6);
TEST_COMPARE_BLOB (&s, sizeof (s), "Hello!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* A source string which fits exactly into the destination buffer is
not truncated. */
memset (&s, '@', sizeof (s));
strcpy (s.buf1, "H");
TEST_COMPARE (strlcat (s.buf1, "ello, world!!!", sizeof (s.buf1)), 15);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* A source string one character longer than the destination buffer
is truncated by one character. The total length is returned. */
memset (&s, '@', sizeof (s));
strcpy (s.buf1, "Hello");
TEST_COMPARE (strlcat (s.buf1, ", world!!!!", sizeof (s.buf1)), 16);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* An even longer source string is truncated as well, and the total
length is returned. */
memset (&s, '@', sizeof (s));
strcpy (s.buf1, "Hello,");
TEST_COMPARE (strlcat (s.buf1, " world!!!!!!!!", sizeof (s.buf1)), 20);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* A destination string which is not NUL-terminated does not result
in any changes to the buffer. */
memset (&s, '@', sizeof (s));
memset (s.buf1, '$', sizeof (s.buf1));
TEST_COMPARE (strlcat (s.buf1, "", sizeof (s.buf1)), 16);
TEST_COMPARE_BLOB (&s, sizeof (s), "$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 32);
TEST_COMPARE (strlcat (s.buf1, "Hello!", sizeof (s.buf1)), 22);
TEST_COMPARE_BLOB (&s, sizeof (s), "$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 32);
TEST_COMPARE (strlcat (s.buf1, "Hello, world!!!!!!!!", sizeof (s.buf1)), 36);
TEST_COMPARE_BLOB (&s, sizeof (s), "$$$$$$$$$$$$$$$$@@@@@@@@@@@@@@@@", 32);
return 0;
}
#include <support/test-driver.c>

68
string/tst-strlcpy.c Normal file
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@ -0,0 +1,68 @@
/* Test the strlcpy function.
Copyright (C) 2023 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
<https://www.gnu.org/licenses/>. */
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <support/check.h>
static int
do_test (void)
{
struct {
char buf1[16];
char buf2[16];
} s;
/* Nothing is written to the destination if its size is 0. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcpy (s.buf1, "Hello!", 0), 6);
TEST_COMPARE_BLOB (&s, sizeof (s), "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* No bytes are are modified in the target buffer if the source
string is short enough. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcpy (s.buf1, "Hello!", sizeof (s.buf1)), 6);
TEST_COMPARE_BLOB (&s, sizeof (s), "Hello!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* A source string which fits exactly into the destination buffer is
not truncated. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcpy (s.buf1, "Hello, world!!!", sizeof (s.buf1)), 15);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* A source string one character longer than the destination buffer
is truncated by one character. The untruncated source length is
returned. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcpy (s.buf1, "Hello, world!!!!", sizeof (s.buf1)), 16);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
/* An even longer source string is truncated as well, and the
original length is returned. */
memset (&s, '@', sizeof (s));
TEST_COMPARE (strlcpy (s.buf1, "Hello, world!!!!!!!!", sizeof (s.buf1)), 20);
TEST_COMPARE_BLOB (&s, sizeof (s),
"Hello, world!!!\0@@@@@@@@@@@@@@@@@@@@@@@@@", 32);
return 0;
}
#include <support/test-driver.c>

4
sysdeps/mach/hurd/i386/libc.abilist
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@ -2326,6 +2326,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/aarch64/libc.abilist
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@ -2665,3 +2665,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/alpha/libc.abilist
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@ -2774,6 +2774,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/arc/libc.abilist
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@ -2426,3 +2426,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/arm/be/libc.abilist
View File

@ -546,6 +546,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

4
sysdeps/unix/sysv/linux/arm/le/libc.abilist
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@ -543,6 +543,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

4
sysdeps/unix/sysv/linux/csky/libc.abilist
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@ -2702,3 +2702,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/hppa/libc.abilist
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@ -2651,6 +2651,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/i386/libc.abilist
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@ -2835,6 +2835,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/ia64/libc.abilist
View File

@ -2600,6 +2600,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
View File

@ -2186,3 +2186,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
View File

@ -547,6 +547,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0x98
GLIBC_2.4 _IO_2_1_stdin_ D 0x98

4
sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
View File

@ -2778,6 +2778,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
View File

@ -2751,3 +2751,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
View File

@ -2748,3 +2748,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
View File

@ -2743,6 +2743,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
View File

@ -2741,6 +2741,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
View File

@ -2749,6 +2749,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
View File

@ -2651,6 +2651,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/nios2/libc.abilist
View File

@ -2790,3 +2790,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/or1k/libc.abilist
View File

@ -2172,3 +2172,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
View File

@ -2817,6 +2817,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
View File

@ -2850,6 +2850,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
View File

@ -2571,6 +2571,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
View File

@ -2885,3 +2885,7 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
View File

@ -2428,3 +2428,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
View File

@ -2628,3 +2628,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F

4
sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
View File

@ -2815,6 +2815,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
View File

@ -2608,6 +2608,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/sh/be/libc.abilist
View File

@ -2658,6 +2658,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/sh/le/libc.abilist
View File

@ -2655,6 +2655,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
View File

@ -2810,6 +2810,10 @@ GLIBC_2.38 __nldbl___isoc23_vsscanf F
GLIBC_2.38 __nldbl___isoc23_vswscanf F
GLIBC_2.38 __nldbl___isoc23_vwscanf F
GLIBC_2.38 __nldbl___isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

4
sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
View File

@ -2623,6 +2623,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
View File

@ -2574,6 +2574,10 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

4
sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
View File

@ -2680,3 +2680,7 @@ GLIBC_2.38 __isoc23_wcstoull F
GLIBC_2.38 __isoc23_wcstoull_l F
GLIBC_2.38 __isoc23_wcstoumax F
GLIBC_2.38 __isoc23_wscanf F
GLIBC_2.38 __strlcat_chk F
GLIBC_2.38 __strlcpy_chk F
GLIBC_2.38 strlcat F
GLIBC_2.38 strlcpy F