diff options
| -rw-r--r-- | ChangeLog | 35 | ||||
| -rw-r--r-- | debug/Makefile | 17 | ||||
| -rw-r--r-- | debug/Versions | 5 | ||||
| -rw-r--r-- | debug/fgetws_chk.c | 54 | ||||
| -rw-r--r-- | debug/fgetws_u_chk.c | 61 | ||||
| -rw-r--r-- | debug/fwprintf_chk.c | 45 | ||||
| -rw-r--r-- | debug/swprintf_chk.c | 37 | ||||
| -rw-r--r-- | debug/tst-chk1.c | 247 | ||||
| -rw-r--r-- | debug/vfwprintf_chk.c | 42 | ||||
| -rw-r--r-- | debug/vswprintf_chk.c | 75 | ||||
| -rw-r--r-- | debug/vwprintf_chk.c | 43 | ||||
| -rw-r--r-- | debug/wcpcpy_chk.c | 45 | ||||
| -rw-r--r-- | debug/wcpncpy_chk.c | 33 | ||||
| -rw-r--r-- | debug/wcscat_chk.c | 55 | ||||
| -rw-r--r-- | debug/wcscpy_chk.c | 61 | ||||
| -rw-r--r-- | debug/wcsncat_chk.c | 96 | ||||
| -rw-r--r-- | debug/wcsncpy_chk.c | 33 | ||||
| -rw-r--r-- | debug/wmemcpy_chk.c | 30 | ||||
| -rw-r--r-- | debug/wmemmove_chk.c | 30 | ||||
| -rw-r--r-- | debug/wmempcpy_chk.c | 31 | ||||
| -rw-r--r-- | debug/wmemset_chk.c | 30 | ||||
| -rw-r--r-- | debug/wprintf_chk.c | 46 | ||||
| -rw-r--r-- | include/bits/wchar2.h | 1 | ||||
| -rw-r--r-- | include/wchar.h | 9 | ||||
| -rw-r--r-- | libio/strfile.h | 13 | ||||
| -rw-r--r-- | libio/vswprintf.c | 13 | ||||
| -rw-r--r-- | string/bits/string3.h | 16 | ||||
| -rw-r--r-- | sysdeps/generic/stpncpy_chk.c | 85 | ||||
| -rw-r--r-- | wcsmbs/bits/wchar2.h | 288 | ||||
| -rw-r--r-- | wcsmbs/wchar.h | 7 | ||||
| -rw-r--r-- | wcsmbs/wcsncpy.c | 5 |
31 files changed, 1563 insertions, 25 deletions
diff --git a/ChangeLog b/ChangeLog index e0c8ec2f40..3e9cc2270c 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,38 @@ +2005-07-15 Ulrich Drepper <drepper@redhat.com> + + * wcsmbs/bits/wchar2.h: New file. + * include/bits/wchar2.h: New file. + * wcsmbs/wchar.h: Include <bits/wchar2.h> if fortification is + requested. + * wcsmbs/wcsncpy.c: Add __wcsncpy alias. + * string/bits/string3.h: Add fortified stpncpy definitions. + * sysdeps/generic/stpncpy_chk.c: New file. + * libio/vswprintf.c: Move _IO_wstrnfile definition to strfile.h. + Export _IO_wstrn_jumps. + * libio/strfile.h: Define _IO_wstrnfile and declare _IO_wstrn_jumps. + * include/wchar.h: Declare __wcsncpy and __vswprintf_chk. + * debug/fgetws_chk.c: New file. + * debug/fgetws_u_chk.c: New file. + * debug/fwprintf_chk.c: New file. + * debug/swprintf_chk.c: New file. + * debug/vfwprintf_chk.c: New file. + * debug/vswprintf_chk.c: New file. + * debug/vwprintf_chk.c: New file. + * debug/wcpcpy_chk.c: New file. + * debug/wcpncpy_chk.c: New file. + * debug/wcscat_chk.c: New file. + * debug/wcscpy_chk.c: New file. + * debug/wcsncat_chk.c: New file. + * debug/wcsncpy_chk.c: New file. + * debug/wmemcpy_chk.c: New file. + * debug/wmemmove_chk.c: New file. + * debug/wmempcpy_chk.c: New file. + * debug/wmemset_chk.c: New file. + * debug/wprintf_chk.c: New file. + * debug/tst-chk1.c: Add tests for new functions. + * debug/Versions: Export new functions. + * debug/Makefile (routines): Add new functions. + 2005-07-13 Ulrich Drepper <drepper@redhat.com> * nscd/nscd_helper.c: Add a few __builtin_expect. diff --git a/debug/Makefile b/debug/Makefile index 51a9c9d42a..3f18359a74 100644 --- a/debug/Makefile +++ b/debug/Makefile @@ -26,13 +26,18 @@ distribute = sigcontextinfo.h register-dump.h frame.h routines = backtrace backtracesyms backtracesymsfd noophooks \ memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \ - strcat_chk strcpy_chk strncat_chk strncpy_chk \ + strcat_chk strcpy_chk strncat_chk strncpy_chk stpncpy_chk \ sprintf_chk vsprintf_chk snprintf_chk vsnprintf_chk \ printf_chk fprintf_chk vprintf_chk vfprintf_chk \ gets_chk chk_fail readonly-area fgets_chk fgets_u_chk \ read_chk pread_chk pread64_chk recv_chk recvfrom_chk \ readlink_chk getwd_chk getcwd_chk realpath_chk ptsname_r_chk \ - wctomb_chk stack_chk_fail \ + wctomb_chk wcscpy_chk wmemcpy_chk wmemmove_chk wmempcpy_chk \ + wcpcpy_chk wcsncpy_chk wcscat_chk wcsncat_chk wmemset_chk \ + wcpncpy_chk \ + swprintf_chk vswprintf_chk wprintf_chk fwprintf_chk \ + vwprintf_chk vfwprintf_chk fgetws_chk fgetws_u_chk \ + stack_chk_fail \ $(static-only-routines) static-only-routines := warning-nop stack_chk_fail_local @@ -48,6 +53,14 @@ CFLAGS-vfprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions) CFLAGS-gets_chk.c = -D_IO_MTSAFE_IO $(exceptions) CFLAGS-fgets_chk.c = -D_IO_MTSAFE_IO $(exceptions) CFLAGS-fgets_u_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-swprintf_chk.c = -D_IO_MTSAFE_IO +CFLAGS-vswprintf_chk.c = -D_IO_MTSAFE_IO +CFLAGS-wprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-fwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-vwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-vfwprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-fgetws_chk.c = -D_IO_MTSAFE_IO $(exceptions) +CFLAGS-fgetws_u_chk.c = -D_IO_MTSAFE_IO $(exceptions) CFLAGS-read_chk.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-pread_chk.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-pread64_chk.c = -fexceptions -fasynchronous-unwind-tables diff --git a/debug/Versions b/debug/Versions index 53fe6c02b0..0953c7733b 100644 --- a/debug/Versions +++ b/debug/Versions @@ -24,6 +24,11 @@ libc { __readlink_chk; __getcwd_chk; __getwd_chk; __recv_chk; __recvfrom_chk; __realpath_chk; __ptsname_r_chk; __wctomb_chk; + __stpncpy_chk; + __wcscpy_chk; __wmemcpy_chk; __wmemmove_chk; __wmempcpy_chk; __wcpcpy_chk; + __wcsncpy_chk; __wcscat_chk; __wcsncat_chk; __wmemset_chk; __wcpncpy_chk; + __swprintf_chk; __vswprintf_chk; __wprintf_chk; __fwprintf_chk; + __vwprintf_chk; __vfwprintf_chk; __fgetws_chk; __fgetws_unlocked_chk; __stack_chk_fail; } diff --git a/debug/fgetws_chk.c b/debug/fgetws_chk.c new file mode 100644 index 0000000000..d080ccb473 --- /dev/null +++ b/debug/fgetws_chk.c @@ -0,0 +1,54 @@ +/* Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2001, 2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "libioP.h" +#include <wchar.h> +#include <sys/param.h> + +wchar_t * +__fgetws_chk (wchar_t *buf, size_t size, int n, _IO_FILE *fp) +{ + _IO_size_t count; + wchar_t *result; + int old_error; + CHECK_FILE (fp, NULL); + if (n <= 0) + return NULL; + _IO_acquire_lock (fp); + /* This is very tricky since a file descriptor may be in the + non-blocking mode. The error flag doesn't mean much in this + case. We return an error only when there is a new error. */ + old_error = fp->_IO_file_flags & _IO_ERR_SEEN; + fp->_IO_file_flags &= ~_IO_ERR_SEEN; + count = _IO_getwline (fp, buf, MIN ((size_t) n - 1, size), L'\n', 1); + /* If we read in some bytes and errno is EAGAIN, that error will + be reported for next read. */ + if (count == 0 || (_IO_ferror_unlocked (fp) && errno != EAGAIN)) + result = NULL; + else if (count >= size) + __chk_fail (); + else + { + buf[count] = '\0'; + result = buf; + } + fp->_IO_file_flags |= old_error; + _IO_release_lock (fp); + return result; +} diff --git a/debug/fgetws_u_chk.c b/debug/fgetws_u_chk.c new file mode 100644 index 0000000000..b6cc87b80d --- /dev/null +++ b/debug/fgetws_u_chk.c @@ -0,0 +1,61 @@ +/* Copyright (C) 1993, 95, 96, 97, 98, 99, 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. + + As a special exception, if you link the code in this file with + files compiled with a GNU compiler to produce an executable, + that does not cause the resulting executable to be covered by + the GNU Lesser General Public License. This exception does not + however invalidate any other reasons why the executable file + might be covered by the GNU Lesser General Public License. + This exception applies to code released by its copyright holders + in files containing the exception. */ + +#include "libioP.h" +#include <wchar.h> +#include <sys/param.h> + +wchar_t * +__fgetws_unlocked_chk (wchar_t *buf, size_t size, int n, _IO_FILE *fp) +{ + _IO_size_t count; + wchar_t *result; + int old_error; + CHECK_FILE (fp, NULL); + if (n <= 0) + return NULL; + /* This is very tricky since a file descriptor may be in the + non-blocking mode. The error flag doesn't mean much in this + case. We return an error only when there is a new error. */ + old_error = fp->_IO_file_flags & _IO_ERR_SEEN; + fp->_IO_file_flags &= ~_IO_ERR_SEEN; + count = _IO_getwline (fp, buf, MIN ((size_t) n - 1, size), L'\n', 1); + /* If we read in some bytes and errno is EAGAIN, that error will + be reported for next read. */ + if (count == 0 || ((fp->_IO_file_flags & _IO_ERR_SEEN) + && errno != EAGAIN)) + result = NULL; + else if (count >= size) + __chk_fail (); + else + { + buf[count] = '\0'; + result = buf; + } + fp->_IO_file_flags |= old_error; + return result; +} diff --git a/debug/fwprintf_chk.c b/debug/fwprintf_chk.c new file mode 100644 index 0000000000..710c89f3c8 --- /dev/null +++ b/debug/fwprintf_chk.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <wchar.h> +#include "../libio/libioP.h" + + +/* Write formatted output to FP from the format string FORMAT. */ +int +__fwprintf_chk (FILE *fp, int flag, const wchar_t *format, ...) +{ + va_list ap; + int done; + + _IO_acquire_lock (fp); + if (flag > 0) + fp->_flags2 |= _IO_FLAGS2_FORTIFY; + + va_start (ap, format); + done = _IO_vfwprintf (fp, format, ap); + va_end (ap); + + if (flag > 0) + fp->_flags2 &= ~_IO_FLAGS2_FORTIFY; + _IO_release_lock (fp); + + return done; +} diff --git a/debug/swprintf_chk.c b/debug/swprintf_chk.c new file mode 100644 index 0000000000..554cbe66a3 --- /dev/null +++ b/debug/swprintf_chk.c @@ -0,0 +1,37 @@ +/* Copyright (C) 1991,1995,1997,1998,1999,2000,2003,2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <wchar.h> + +/* Write formatted output into S, according to the format string FORMAT. */ +/* VARARGS5 */ +int +__swprintf_chk (wchar_t *s, size_t n, int flag, size_t s_len, + const wchar_t *format, ...) +{ + va_list arg; + int done; + + va_start (arg, format); + done = __vswprintf_chk (s, n, flag, s_len, format, arg); + va_end (arg); + + return done; +} diff --git a/debug/tst-chk1.c b/debug/tst-chk1.c index ba50973868..a83bd843c6 100644 --- a/debug/tst-chk1.c +++ b/debug/tst-chk1.c @@ -25,9 +25,10 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <unistd.h> +#include <wchar.h> #include <sys/socket.h> #include <sys/un.h> -#include <unistd.h> char *temp_filename; static void do_prepare (void); @@ -72,6 +73,7 @@ handler (int sig) } char buf[10]; +wchar_t wbuf[10]; volatile size_t l0; volatile char *p; const char *str1 = "JIHGFEDCBA"; @@ -79,6 +81,11 @@ const char *str2 = "F"; const char *str3 = "%s%n%s%n"; const char *str4 = "Hello, "; const char *str5 = "World!\n"; +const wchar_t *wstr1 = L"JIHGFEDCBA"; +const wchar_t *wstr2 = L"F"; +const wchar_t *wstr3 = L"%s%n%s%n"; +const wchar_t *wstr4 = L"Hello, "; +const wchar_t *wstr5 = L"World!\n"; char buf2[10] = "%s"; int num1 = 67; int num2 = 987654; @@ -123,6 +130,7 @@ do_test (void) setenv ("LIBC_FATAL_STDERR_", "1", 1); struct A { char buf1[9]; char buf2[1]; } a; + struct wA { wchar_t buf1[9]; wchar_t buf2[1]; } wa; printf ("Test checking routines at fortify level %d\n", #ifdef __USE_FORTIFY_LEVEL @@ -138,7 +146,8 @@ do_test (void) if (memcmp (buf, "aabcdefghi", 10)) FAIL (); - if (mempcpy (buf + 5, "abcde", 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10)) + if (mempcpy (buf + 5, "abcde", 5) != buf + 10 + || memcmp (buf, "aabcdabcde", 10)) FAIL (); memset (buf + 8, 'j', 2); @@ -169,7 +178,8 @@ do_test (void) if (memcmp (buf, "aabcdefghi", 10)) FAIL (); - if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10)) + if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10 + || memcmp (buf, "aabcdabcde", 10)) FAIL (); memset (buf + 8, 'j', l0 + 2); @@ -187,20 +197,24 @@ do_test (void) if (memcmp (buf, "aabcEDX\0\0", 10)) FAIL (); - if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEDX67", 10)) + if (stpncpy (buf + 5, "cd", l0 + 5) != buf + 7 + || memcmp (buf, "aabcEcd\0\0", 10)) FAIL (); - if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEDX98", 10)) + if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEcd67", 10)) + FAIL (); + + if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEcd98", 10)) FAIL (); buf[l0 + 8] = '\0'; strcat (buf, "A"); - if (memcmp (buf, "aabcEDX9A", 10)) + if (memcmp (buf, "aabcEcd9A", 10)) FAIL (); buf[l0 + 7] = '\0'; strncat (buf, "ZYXWV", l0 + 2); - if (memcmp (buf, "aabcEDXZY", 10)) + if (memcmp (buf, "aabcEcdZY", 10)) FAIL (); memcpy (a.buf1, "abcdefghij", l0 + 10); @@ -224,14 +238,16 @@ do_test (void) if (memcmp (a.buf1, "aabcEDCBA", 10)) FAIL (); - if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9 || memcmp (a.buf1, "aabcEDCBF", 10)) + if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9 + || memcmp (a.buf1, "aabcEDCBF", 10)) FAIL (); strncpy (a.buf1 + 6, "X", l0 + 4); if (memcmp (a.buf1, "aabcEDX\0\0", 10)) FAIL (); - if (sprintf (a.buf1 + 7, "%d", num1) != 2 || memcmp (a.buf1, "aabcEDX67", 10)) + if (sprintf (a.buf1 + 7, "%d", num1) != 2 + || memcmp (a.buf1, "aabcEDX67", 10)) FAIL (); if (snprintf (a.buf1 + 7, 3, "%d", num2) != 6 @@ -282,6 +298,10 @@ do_test (void) CHK_FAIL_END CHK_FAIL_START + stpncpy (buf + 6, "cd", l0 + 5); + CHK_FAIL_END + + CHK_FAIL_START sprintf (buf + 8, "%d", num1); CHK_FAIL_END @@ -352,6 +372,215 @@ do_test (void) CHK_FAIL_END #endif + + /* These ops can be done without runtime checking of object size. */ + wmemcpy (wbuf, L"abcdefghij", 10); + wmemmove (wbuf + 1, wbuf, 9); + if (wmemcmp (wbuf, L"aabcdefghi", 10)) + FAIL (); + + if (wmempcpy (wbuf + 5, L"abcde", 5) != wbuf + 10 + || wmemcmp (wbuf, L"aabcdabcde", 10)) + FAIL (); + + wmemset (wbuf + 8, L'j', 2); + if (wmemcmp (wbuf, L"aabcdabcjj", 10)) + FAIL (); + + wcscpy (wbuf + 4, L"EDCBA"); + if (wmemcmp (wbuf, L"aabcEDCBA", 10)) + FAIL (); + + if (wcpcpy (wbuf + 8, L"F") != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10)) + FAIL (); + + wcsncpy (wbuf + 6, L"X", 4); + if (wmemcmp (wbuf, L"aabcEDX\0\0", 10)) + FAIL (); + + if (swprintf (wbuf + 7, 3, L"%ls", L"987654") >= 0 + || wmemcmp (wbuf, L"aabcEDX98", 10)) + FAIL (); + + /* These ops need runtime checking, but shouldn't __chk_fail. */ + wmemcpy (wbuf, L"abcdefghij", l0 + 10); + wmemmove (wbuf + 1, wbuf, l0 + 9); + if (wmemcmp (wbuf, L"aabcdefghi", 10)) + FAIL (); + + if (wmempcpy (wbuf + 5, L"abcde", l0 + 5) != wbuf + 10 + || wmemcmp (wbuf, L"aabcdabcde", 10)) + FAIL (); + + wmemset (wbuf + 8, L'j', l0 + 2); + if (wmemcmp (wbuf, L"aabcdabcjj", 10)) + FAIL (); + + wcscpy (wbuf + 4, wstr1 + 5); + if (wmemcmp (wbuf, L"aabcEDCBA", 10)) + FAIL (); + + if (wcpcpy (wbuf + 8, wstr2) != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10)) + FAIL (); + + wcsncpy (wbuf + 6, L"X", l0 + 4); + if (wmemcmp (wbuf, L"aabcEDX\0\0", 10)) + FAIL (); + + if (wcpncpy (wbuf + 5, L"cd", l0 + 5) != wbuf + 7 + || wmemcmp (wbuf, L"aabcEcd\0\0", 10)) + FAIL (); + + if (swprintf (wbuf + 7, 3, L"%d", num2) >= 0 + || wmemcmp (wbuf, L"aabcEcd98", 10)) + FAIL (); + + wbuf[l0 + 8] = L'\0'; + wcscat (wbuf, L"A"); + if (wmemcmp (wbuf, L"aabcEcd9A", 10)) + FAIL (); + + wbuf[l0 + 7] = L'\0'; + wcsncat (wbuf, L"ZYXWV", l0 + 2); + if (wmemcmp (wbuf, L"aabcEcdZY", 10)) + FAIL (); + + wmemcpy (wa.buf1, L"abcdefghij", l0 + 10); + wmemmove (wa.buf1 + 1, wa.buf1, l0 + 9); + if (wmemcmp (wa.buf1, L"aabcdefghi", 10)) + FAIL (); + + if (wmempcpy (wa.buf1 + 5, L"abcde", l0 + 5) != wa.buf1 + 10 + || wmemcmp (wa.buf1, L"aabcdabcde", 10)) + FAIL (); + + wmemset (wa.buf1 + 8, L'j', l0 + 2); + if (wmemcmp (wa.buf1, L"aabcdabcjj", 10)) + FAIL (); + +#if __USE_FORTIFY_LEVEL < 2 + /* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2 + and sufficient GCC support, as the string operations overflow + from a.buf1 into a.buf2. */ + wcscpy (wa.buf1 + 4, wstr1 + 5); + if (wmemcmp (wa.buf1, L"aabcEDCBA", 10)) + FAIL (); + + if (wcpcpy (wa.buf1 + 8, wstr2) != wa.buf1 + 9 + || wmemcmp (wa.buf1, L"aabcEDCBF", 10)) + FAIL (); + + wcsncpy (wa.buf1 + 6, L"X", l0 + 4); + if (wmemcmp (wa.buf1, L"aabcEDX\0\0", 10)) + FAIL (); + + if (swprintf (wa.buf1 + 7, 3, L"%d", num2) >= 0 + || wmemcmp (wa.buf1, L"aabcEDX98", 10)) + FAIL (); + + wa.buf1[l0 + 8] = L'\0'; + wcscat (wa.buf1, L"A"); + if (wmemcmp (wa.buf1, L"aabcEDX9A", 10)) + FAIL (); + + wa.buf1[l0 + 7] = L'\0'; + wcsncat (wa.buf1, L"ZYXWV", l0 + 2); + if (wmemcmp (wa.buf1, L"aabcEDXZY", 10)) + FAIL (); + +#endif + +#if __USE_FORTIFY_LEVEL >= 1 + /* Now check if all buffer overflows are caught at runtime. */ + + CHK_FAIL_START + wmemcpy (wbuf + 1, L"abcdefghij", l0 + 10); + CHK_FAIL_END + + CHK_FAIL_START + wmemmove (wbuf + 2, wbuf + 1, l0 + 9); + CHK_FAIL_END + + CHK_FAIL_START + p = wmempcpy (wbuf + 6, L"abcde", l0 + 5); + CHK_FAIL_END + + CHK_FAIL_START + wmemset (wbuf + 9, L'j', l0 + 2); + CHK_FAIL_END + + CHK_FAIL_START + wcscpy (wbuf + 5, wstr1 + 5); + CHK_FAIL_END + + CHK_FAIL_START + p = wcpcpy (wbuf + 9, wstr2); + CHK_FAIL_END + + CHK_FAIL_START + wcsncpy (wbuf + 7, L"X", l0 + 4); + CHK_FAIL_END + + CHK_FAIL_START + wcpncpy (wbuf + 6, L"cd", l0 + 5); + CHK_FAIL_END + + wmemcpy (wbuf, wstr1 + 2, l0 + 9); + CHK_FAIL_START + wcscat (wbuf, L"AB"); + CHK_FAIL_END + + wmemcpy (wbuf, wstr1 + 3, l0 + 8); + CHK_FAIL_START + wcsncat (wbuf, L"ZYXWV", l0 + 3); + CHK_FAIL_END + + CHK_FAIL_START + wmemcpy (wa.buf1 + 1, L"abcdefghij", l0 + 10); + CHK_FAIL_END + + CHK_FAIL_START + wmemmove (wa.buf1 + 2, wa.buf1 + 1, l0 + 9); + CHK_FAIL_END + + CHK_FAIL_START + p = wmempcpy (wa.buf1 + 6, L"abcde", l0 + 5); + CHK_FAIL_END + + CHK_FAIL_START + wmemset (wa.buf1 + 9, L'j', l0 + 2); + CHK_FAIL_END + +#if __USE_FORTIFY_LEVEL >= 2 +# define O 0 +#else +# define O 1 +#endif + + CHK_FAIL_START + wcscpy (wa.buf1 + (O + 4), wstr1 + 5); + CHK_FAIL_END + + CHK_FAIL_START + p = wcpcpy (wa.buf1 + (O + 8), wstr2); + CHK_FAIL_END + + CHK_FAIL_START + wcsncpy (wa.buf1 + (O + 6), L"X", l0 + 4); + CHK_FAIL_END + + wmemcpy (wa.buf1, wstr1 + (3 - O), l0 + 8 + O); + CHK_FAIL_START + wcscat (wa.buf1, L"AB"); + CHK_FAIL_END + + wmemcpy (wa.buf1, wstr1 + (4 - O), l0 + 7 + O); + CHK_FAIL_START + wcsncat (wa.buf1, L"ZYXWV", l0 + 3); + CHK_FAIL_END +#endif + + /* Now checks for %n protection. */ /* Constant literals passed directly are always ok diff --git a/debug/vfwprintf_chk.c b/debug/vfwprintf_chk.c new file mode 100644 index 0000000000..d4af557ae4 --- /dev/null +++ b/debug/vfwprintf_chk.c @@ -0,0 +1,42 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <wchar.h> +#include "../libio/libioP.h" + + +/* Write formatted output to FP from the format string FORMAT. */ +int +__vfwprintf_chk (FILE *fp, int flag, const wchar_t *format, va_list ap) +{ + int done; + + _IO_acquire_lock (fp); + if (flag > 0) + fp->_flags2 |= _IO_FLAGS2_FORTIFY; + + done = _IO_vfwprintf (fp, format, ap); + + if (flag > 0) + fp->_flags2 &= ~_IO_FLAGS2_FORTIFY; + _IO_release_lock (fp); + + return done; +} diff --git a/debug/vswprintf_chk.c b/debug/vswprintf_chk.c new file mode 100644 index 0000000000..f9a50c6e5d --- /dev/null +++ b/debug/vswprintf_chk.c @@ -0,0 +1,75 @@ +/* Copyright (C) 1991,1995,1997,1998,2004,2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <wchar.h> +#include "../libio/libioP.h" +#include "../libio/strfile.h" + + +/* Write formatted output into S, according to the format + string FORMAT, writing no more than MAXLEN characters. */ +/* VARARGS5 */ +int +__vswprintf_chk (wchar_t *s, size_t maxlen, int flags, size_t slen, + const wchar_t *format, va_list args) +{ + /* XXX Maybe for less strict version do not fail immediately. + Though, maxlen is supposed to be the size of buffer pointed + to by s, so a conforming program can't pass such maxlen + to *snprintf. */ + if (__builtin_expect (slen < maxlen, 0)) + __chk_fail (); + + _IO_wstrnfile sf; + struct _IO_wide_data wd; + int ret; +#ifdef _IO_MTSAFE_IO + sf.f._sbf._f._lock = NULL; +#endif + + /* We need to handle the special case where MAXLEN is 0. Use the + overflow buffer right from the start. */ + if (__builtin_expect (maxlen == 0, 0)) + /* Since we have to write at least the terminating L'\0' a buffer + length of zero always makes the function fail. */ + return -1; + + _IO_no_init (&sf.f._sbf._f, _IO_USER_LOCK, 0, &wd, &_IO_wstrn_jumps); + _IO_fwide (&sf.f._sbf._f, 1); + s[0] = L'\0'; + + /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n + can only come from read-only format strings. */ + if (flags > 0) + sf.f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY; + + _IO_wstr_init_static (&sf.f._sbf._f, s, maxlen - 1, s); + ret = _IO_vfwprintf ((_IO_FILE *) &sf.f._sbf, format, args); + + if (sf.f._sbf._f._wide_data->_IO_buf_base == sf.overflow_buf) + /* ISO C99 requires swprintf/vswprintf to return an error if the + output does not fit int he provided buffer. */ + return -1; + + /* Terminate the string. */ + *sf.f._sbf._f._wide_data->_IO_write_ptr = '\0'; + + return ret; +} +libc_hidden_def (__vswprintf_chk) diff --git a/debug/vwprintf_chk.c b/debug/vwprintf_chk.c new file mode 100644 index 0000000000..3b959b2968 --- /dev/null +++ b/debug/vwprintf_chk.c @@ -0,0 +1,43 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <stdio.h> +#include <wchar.h> +#include "../libio/libioP.h" + + +/* Write formatted output to stdout from the format string FORMAT. */ +int +__vwprintf_chk (int flag, const wchar_t *format, va_list ap) +{ + int done; + + _IO_acquire_lock (stdout); + if (flag > 0) + stdout->_flags2 |= _IO_FLAGS2_FORTIFY; + + done = _IO_vfwprintf (stdout, format, ap); + + if (flag > 0) + stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY; + _IO_release_lock (stdout); + + return done; +} diff --git a/debug/wcpcpy_chk.c b/debug/wcpcpy_chk.c new file mode 100644 index 0000000000..c48ec68ccc --- /dev/null +++ b/debug/wcpcpy_chk.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + +#define __need_ptrdiff_t +#include <stddef.h> + + +/* Copy SRC to DEST, returning the address of the terminating L'\0' in + DEST. Check for overflows. */ +wchar_t * +__wcpcpy_chk (wchar_t *dest, const wchar_t *src, size_t destlen) +{ + wchar_t *wcp = (wchar_t *) dest - 1; + wint_t c; + const ptrdiff_t off = src - dest + 1; + + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = wcp[off]; + *++wcp = c; + } + while (c != L'\0'); + + return wcp; +} diff --git a/debug/wcpncpy_chk.c b/debug/wcpncpy_chk.c new file mode 100644 index 0000000000..ea1340191a --- /dev/null +++ b/debug/wcpncpy_chk.c @@ -0,0 +1,33 @@ +/* Copyright (C) 1995, 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + + +/* Copy no more than N wide-characters of SRC to DEST. */ +wchar_t * +__wcpncpy_chk (wchar_t *dest, const wchar_t *src, size_t n, size_t destlen) +{ + if (__builtin_expect (destlen < n, 0)) + __chk_fail (); + + /* This function is not often enough used to justify not using a + tail call. */ + return __wcpncpy (dest, src, n); +} diff --git a/debug/wcscat_chk.c b/debug/wcscat_chk.c new file mode 100644 index 0000000000..eef04519fd --- /dev/null +++ b/debug/wcscat_chk.c @@ -0,0 +1,55 @@ +/* Copyright (C) 1995, 1996, 1997, 2001, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + + +/* Append SRC on the end of DEST. Check for overflows. */ +wchar_t * +__wcscat_chk (wchar_t *dest, const wchar_t *src, size_t destlen) +{ + register wchar_t *s1 = dest; + register const wchar_t *s2 = src; + wchar_t c; + + /* Find the end of the string. */ + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *s1++; + } + while (c != L'\0'); + + /* Make S1 point before the next character, so we can increment + it while memory is read (wins on pipelined cpus). */ + s1 -= 2; + ++destlen; + + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *s2++; + *++s1 = c; + } + while (c != L'\0'); + + return dest; +} diff --git a/debug/wcscpy_chk.c b/debug/wcscpy_chk.c new file mode 100644 index 0000000000..93b78cd01c --- /dev/null +++ b/debug/wcscpy_chk.c @@ -0,0 +1,61 @@ +/* Copyright (C) 1995, 1996, 1997, 2003, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stddef.h> +#include <wchar.h> + + +/* Copy SRC to DEST. */ +wchar_t * +__wcscpy_chk (wchar_t *dest, const wchar_t *src, size_t n) +{ + wint_t c; + wchar_t *wcp; + + if (__alignof__ (wchar_t) >= sizeof (wchar_t)) + { + const ptrdiff_t off = dest - src - 1; + + wcp = (wchar_t *) src; + + do + { + if (__builtin_expect (n-- == 0, 0)) + __chk_fail (); + c = *wcp++; + wcp[off] = c; + } + while (c != L'\0'); + } + else + { + wcp = dest; + + do + { + if (__builtin_expect (n-- == 0, 0)) + __chk_fail (); + c = *src++; + *wcp++ = c; + } + while (c != L'\0'); + } + + return dest; +} diff --git a/debug/wcsncat_chk.c b/debug/wcsncat_chk.c new file mode 100644 index 0000000000..b28773ff27 --- /dev/null +++ b/debug/wcsncat_chk.c @@ -0,0 +1,96 @@ +/* Copyright (C) 1995, 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + + +/* Append no more than N wide-character of SRC onto DEST. */ +wchar_t * +__wcsncat_chk (wchar_t *dest, const wchar_t *src, size_t n, size_t destlen) +{ + wchar_t c; + wchar_t * const s = dest; + + /* Find the end of DEST. */ + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *dest++; + } + while (c != L'\0'); + + /* Make DEST point before next character, so we can increment + it while memory is read (wins on pipelined cpus). */ + ++destlen; + dest -= 2; + + if (n >= 4) + { + size_t n4 = n >> 2; + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *src++; + *++dest = c; + if (c == L'\0') + return s; + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *src++; + *++dest = c; + if (c == L'\0') + return s; + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *src++; + *++dest = c; + if (c == L'\0') + return s; + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *src++; + *++dest = c; + if (c == L'\0') + return s; + } while (--n4 > 0); + n &= 3; + } + + while (n > 0) + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + c = *src++; + *++dest = c; + if (c == L'\0') + return s; + n--; + } + + if (c != L'\0') + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + *++dest = L'\0'; + } + + return s; +} diff --git a/debug/wcsncpy_chk.c b/debug/wcsncpy_chk.c new file mode 100644 index 0000000000..199e4b01ab --- /dev/null +++ b/debug/wcsncpy_chk.c @@ -0,0 +1,33 @@ +/* Copyright (C) 1995, 1996, 1997, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + + +/* Copy no more than N wide-characters of SRC to DEST. */ +wchar_t * +__wcsncpy_chk (wchar_t *dest, const wchar_t *src, size_t n, size_t destlen) +{ + if (__builtin_expect (destlen < n, 0)) + __chk_fail (); + + /* This function is not often enough used to justify not using a + tail call. */ + return __wcsncpy (dest, src, n); +} diff --git a/debug/wmemcpy_chk.c b/debug/wmemcpy_chk.c new file mode 100644 index 0000000000..eeee927e91 --- /dev/null +++ b/debug/wmemcpy_chk.c @@ -0,0 +1,30 @@ +/* Copyright (C) 1996, 1997, 1999, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.org>, 1996. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> +#include <string.h> + + +wchar_t * +__wmemcpy_chk (wchar_t *s1, const wchar_t *s2, size_t n, size_t ns1) +{ + if (__builtin_expect (ns1 < n, 0)) + __chk_fail (); + return (wchar_t *) memcpy ((char *) s1, (char *) s2, n * sizeof (wchar_t)); +} diff --git a/debug/wmemmove_chk.c b/debug/wmemmove_chk.c new file mode 100644 index 0000000000..da0446eb28 --- /dev/null +++ b/debug/wmemmove_chk.c @@ -0,0 +1,30 @@ +/* Copyright (C) 1996, 1997, 1999, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu> + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> +#include <string.h> + + +wchar_t * +__wmemmove_chk (wchar_t *s1, const wchar_t *s2, size_t n, size_t ns1) +{ + if (__builtin_expect (ns1 < n, 0)) + __chk_fail (); + return (wchar_t *) memmove ((char *) s1, (char *) s2, n * sizeof (wchar_t)); +} diff --git a/debug/wmempcpy_chk.c b/debug/wmempcpy_chk.c new file mode 100644 index 0000000000..52c629a354 --- /dev/null +++ b/debug/wmempcpy_chk.c @@ -0,0 +1,31 @@ +/* Copyright (C) 1999, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.org>, 1999. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> +#include <string.h> + + +wchar_t * +__wmempcpy_chk (wchar_t *s1, const wchar_t *s2, size_t n, size_t ns1) +{ + if (__builtin_expect (ns1 < n, 0)) + __chk_fail (); + return (wchar_t *) __mempcpy ((char *) s1, (char *) s2, + n * sizeof (wchar_t)); +} diff --git a/debug/wmemset_chk.c b/debug/wmemset_chk.c new file mode 100644 index 0000000000..5ed88e83a2 --- /dev/null +++ b/debug/wmemset_chk.c @@ -0,0 +1,30 @@ +/* Copyright (C) 1996,97,99,2002,2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.org>, 1996. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <wchar.h> + + +wchar_t * +__wmemset_chk (wchar_t *s, wchar_t c, size_t n, size_t dstlen) +{ + if (__builtin_expect (dstlen < n, 0)) + __chk_fail (); + + return wmemset (s, c, n); +} diff --git a/debug/wprintf_chk.c b/debug/wprintf_chk.c new file mode 100644 index 0000000000..e0a82617ad --- /dev/null +++ b/debug/wprintf_chk.c @@ -0,0 +1,46 @@ +/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004, 2005 + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdarg.h> +#include <stdio.h> +#include <wchar.h> +#include "../libio/libioP.h" + + +/* Write formatted output to stdout from the format string FORMAT. */ +int +__wprintf_chk (int flag, const wchar_t *format, ...) +{ + va_list ap; + int done; + + _IO_acquire_lock (stdout); + if (flag > 0) + stdout->_flags2 |= _IO_FLAGS2_FORTIFY; + + va_start (ap, format); + done = _IO_vfwprintf (stdout, format, ap); + va_end (ap); + + if (flag > 0) + stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY; + _IO_release_lock (stdout); + + return done; +} diff --git a/include/bits/wchar2.h b/include/bits/wchar2.h new file mode 100644 index 0000000000..a18dccfc55 --- /dev/null +++ b/include/bits/wchar2.h @@ -0,0 +1 @@ +#include <wcsmbs/bits/wchar2.h> diff --git a/include/wchar.h b/include/wchar.h index 0f91114c41..e8079e6d80 100644 --- a/include/wchar.h +++ b/include/wchar.h @@ -82,6 +82,8 @@ extern size_t __wcsnrtombs (char *__restrict __dst, __const wchar_t **__restrict __src, size_t __nwc, size_t __len, __mbstate_t *__restrict __ps); +extern wchar_t *__wcsncpy (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n); extern wchar_t *__wcpcpy (wchar_t *__dest, __const wchar_t *__src); extern wchar_t *__wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n); @@ -112,6 +114,13 @@ extern int __vfwprintf (__FILE *__restrict __s, /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; +extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n, + int __flag, size_t __s_len, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg) + /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */; +libc_hidden_proto (__vswprintf_chk) + /* Internal functions. */ extern size_t __mbsrtowcs_l (wchar_t *dst, const char **src, size_t len, mbstate_t *ps, __locale_t l) attribute_hidden; diff --git a/libio/strfile.h b/libio/strfile.h index b91111a9d6..53a36a3db8 100644 --- a/libio/strfile.h +++ b/libio/strfile.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1993, 1997, 1998, 1999 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1997, 1998, 1999, 2005 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 @@ -73,3 +73,14 @@ typedef struct } _IO_strnfile; extern const struct _IO_jump_t _IO_strn_jumps attribute_hidden; + + +typedef struct +{ + _IO_strfile f; + /* This is used for the characters which do not fit in the buffer + provided by the user. */ + wchar_t overflow_buf[64]; +} _IO_wstrnfile; + +extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden; diff --git a/libio/vswprintf.c b/libio/vswprintf.c index 42168aade4..eda8495241 100644 --- a/libio/vswprintf.c +++ b/libio/vswprintf.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1994,1997,1999-2002,2004 Free Software Foundation, Inc. +/* Copyright (C) 1994,1997,1999-2002,2004,2005 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 @@ -29,15 +29,6 @@ #include "strfile.h" -typedef struct -{ - _IO_strfile f; - /* This is used for the characters which do not fit in the buffer - provided by the user. */ - wchar_t overflow_buf[64]; -} _IO_wstrnfile; - - static wint_t _IO_wstrn_overflow (_IO_FILE *fp, wint_t c) __THROW; static wint_t @@ -75,7 +66,7 @@ _IO_wstrn_overflow (fp, c) } -static const struct _IO_jump_t _IO_wstrn_jumps = +const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden = { JUMP_INIT_DUMMY, JUMP_INIT(finish, _IO_wstr_finish), diff --git a/string/bits/string3.h b/string/bits/string3.h index bcda42a232..4271e5f148 100644 --- a/string/bits/string3.h +++ b/string/bits/string3.h @@ -144,6 +144,22 @@ __strncpy_ichk (char *__restrict __dest, const char *__restrict __src, } +// XXX We have no corresponding builtin yet. +extern char *__stpncpy_chk (char *__dest, const char *__src, size_t __n, + size_t __destlen) __THROW; +extern char *__REDIRECT (__stpncpy_alias, (char *__dest, const char *__src, + size_t __n), stpncpy)__THROW; + +extern __always_inline char * +stpncpy (char *__dest, const char *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1 + && (!__builtin_constant_p (__n) || __n <= __bos (__dest))) + return __stpncpy_chk (__dest, __src, __n, __bos (__dest)); + return __stpncpy_alias (__dest, __src, __n); +} + + #define strcat(dest, src) \ ((__bos (dest) != (size_t) -1) \ ? __builtin___strcat_chk (dest, src, __bos (dest)) \ diff --git a/sysdeps/generic/stpncpy_chk.c b/sysdeps/generic/stpncpy_chk.c new file mode 100644 index 0000000000..d136339dea --- /dev/null +++ b/sysdeps/generic/stpncpy_chk.c @@ -0,0 +1,85 @@ +/* Copyright (C) 1993,1995,1996,1997,2002,2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* This is almost copied from strncpy.c, written by Torbjorn Granlund. */ + +#include <string.h> + + +/* Copy no more than N characters of SRC to DEST, returning the address of + the terminating '\0' in DEST, if any, or else DEST + N. */ +char * +__stpncpy_chk (char *dest, const char *src, size_t n, size_t destlen) +{ + char c; + char *s = dest; + + if (__builtin_expect (destlen < n, 0)) + __chk_fail (); + + if (n >= 4) + { + size_t n4 = n >> 2; + + for (;;) + { + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + if (--n4 == 0) + goto last_chars; + } + n -= dest - s; + goto zero_fill; + } + + last_chars: + n &= 3; + if (n == 0) + return dest; + + for (;;) + { + c = *src++; + --n; + *dest++ = c; + if (c == '\0') + break; + if (n == 0) + return dest; + } + + zero_fill: + while (n-- > 0) + dest[n] = '\0'; + + return dest - 1; +} diff --git a/wcsmbs/bits/wchar2.h b/wcsmbs/bits/wchar2.h new file mode 100644 index 0000000000..5d5b102649 --- /dev/null +++ b/wcsmbs/bits/wchar2.h @@ -0,0 +1,288 @@ +/* Checking macros for wchar functions. + Copyright (C) 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _WCHAR_H +# error "Never include <bits/wchar.h> directly; use <wchar.h> instead." +#endif + + +extern wchar_t *__wmemcpy_chk (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, size_t __n, + size_t __ns1) __THROW; +extern wchar_t *__REDIRECT (__wmemcpy_alias, (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, + size_t __n), wmemcpy) __THROW; + +extern __always_inline wchar_t * +wmemcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmemcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); + return __wmemcpy_alias (__s1, __s2, __n); +} + + +extern wchar_t *__wmemmove_chk (wchar_t *__s1, __const wchar_t *__s2, + size_t __n, size_t __ns1) __THROW; +extern wchar_t *__REDIRECT (__wmemmove_alias, (wchar_t *__s1, + __const wchar_t *__s2, + size_t __n), wmemmove) __THROW; + +extern __always_inline wchar_t * +wmemmove (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmemmove_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); + return __wmemmove_alias (__s1, __s2, __n); +} + + +#ifdef __USE_GNU +extern wchar_t *__wmempcpy_chk (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, size_t __n, + size_t __ns1) __THROW; +extern wchar_t *__REDIRECT (__wmempcpy_alias, + (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, + size_t __n), wmempcpy) __THROW; + +extern __always_inline wchar_t * +wmempcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmempcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); + return __wmempcpy_alias (__s1, __s2, __n); +} +#endif + + +extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n, + size_t __ns) __THROW; +extern wchar_t *__REDIRECT (__wmemset_alias, (wchar_t *__s, wchar_t __c, + size_t __n), wmemset) __THROW; + +extern __always_inline wchar_t * +wmemset (wchar_t *__restrict __s, wchar_t __c, size_t __n) +{ + if (__bos0 (__s) != (size_t) -1) + return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t)); + return __wmemset_alias (__s, __c, __n); +} + + +extern wchar_t *__wcscpy_chk (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, + size_t __n) __THROW; +extern wchar_t *__REDIRECT (__wcscpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src), wcscpy) + __THROW; + +extern __always_inline wchar_t * +wcscpy (wchar_t *__dest, __const wchar_t *__src) +{ + if (__bos (__dest) != (size_t) -1) + return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + return __wcscpy_alias (__dest, __src); +} + + +extern wchar_t *__wcpcpy_chk (wchar_t *__dest, __const wchar_t *__src, + size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcpcpy_alias, (wchar_t *__dest, + __const wchar_t *__src), wcpcpy) + __THROW; + +extern __always_inline wchar_t * +wcpcpy (wchar_t *__dest, __const wchar_t *__src) +{ + if (__bos (__dest) != (size_t) -1) + return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + return __wcpcpy_alias (__dest, __src); +} + + +extern wchar_t *__wcsncpy_chk (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n, + size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcsncpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcsncpy) __THROW; + +extern __always_inline wchar_t * +wcsncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1 + && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) + return __wcsncpy_chk (__dest, __src, __n, + __bos (__dest) / sizeof (wchar_t)); + return __wcsncpy_alias (__dest, __src, __n); +} + + +extern wchar_t *__wcpncpy_chk (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n, + size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcpncpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcpncpy) __THROW; + +extern __always_inline wchar_t * +wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1 + && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) + return __wcpncpy_chk (__dest, __src, __n, + __bos (__dest) / sizeof (wchar_t)); + return __wcpncpy_alias (__dest, __src, __n); +} + + +extern wchar_t *__wcscat_chk (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, + size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcscat_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src), wcscat) + __THROW; + +extern __always_inline wchar_t * +wcscat (wchar_t *__dest, __const wchar_t *__src) +{ + if (__bos (__dest) != (size_t) -1) + return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); + return __wcscat_alias (__dest, __src); +} + + +extern wchar_t *__wcsncat_chk (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, + size_t __n, size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcsncat_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcsncat) __THROW; + +extern __always_inline wchar_t * +wcsncat (wchar_t *__dest, __const wchar_t *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1) + return __wcsncat_chk (__dest, __src, __n, + __bos (__dest) / sizeof (wchar_t)); + return __wcsncat_alias (__dest, __src, __n); +} + + +extern int __swprintf_chk (wchar_t *__restrict __s, size_t __n, + int __flag, size_t __s_len, + __const wchar_t *__restrict __format, ...) + __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 6))) */; + +/* XXX We might want to have support in gcc for swprintf. */ +#define swprintf(s, n, format, ...) \ + (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ + ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, __bos (s), format, \ + __VA_ARGS__) \ + : swprintf (s, n, format, __VA_ARGS__)) + + +extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n, + int __flag, size_t __s_len, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg) + __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */; +extern int __REDIRECT (__vswprintf_alias, + (wchar_t *__restrict __s, size_t __n, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg), vswprintf) + __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; + + +extern __always_inline int +vswprintf (wchar_t *__s, size_t __n, __const wchar_t *__format, + __gnuc_va_list __arg) +{ + if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) + return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s), + __format, __arg); + return vswprintf (__s, __n, __format, __arg); +} + + +#if __USE_FORTIFY_LEVEL > 1 + +extern int __fwprintf_chk (FILE *__restrict __stream, int __flag, + __const wchar_t *__restrict __format, ...); +extern int __wprintf_chk (int __flag, __const wchar_t *__restrict __format, + ...); +extern int __vfwprintf_chk (FILE *__restrict __stream, int __flag, + __const wchar_t *__restrict __format, + _G_va_list __ap); +extern int __vwprintf_chk (int __flag, __const wchar_t *__restrict __format, + _G_va_list __ap); + +# define wprintf(...) \ + __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__) +# define fwprintf(stream, ...) \ + __fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__) +# define vwprintf(format, ap) \ + __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap) +# define vfwprintf(stream, format, ap) \ + __vfwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap) + +#endif + +extern wchar_t *__fgetws_chk (wchar_t *__restrict __s, size_t __size, int __n, + FILE *__restrict __stream) __wur; +extern wchar_t *__REDIRECT (__fgetws_alias, + (wchar_t *__restrict __s, int __n, + FILE *__restrict __stream), fgetws) __wur; + +extern __always_inline __wur wchar_t * +fgetws (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) +{ + if (__bos (__s) != (size_t) -1 + && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) + return __fgetws_chk (__s, __bos (__s), __n, __stream); + return __fgetws_alias (__s, __n, __stream); +} + +#ifdef __USE_GNU +extern wchar_t *__fgetws_unlocked_chk (wchar_t *__restrict __s, size_t __size, + int __n, FILE *__restrict __stream) + __wur; +extern wchar_t *__REDIRECT (__fgetws_unlocked_alias, + (wchar_t *__restrict __s, int __n, + FILE *__restrict __stream), fgetws_unlocked) + __wur; + +extern __always_inline __wur wchar_t * +fgetws_unlocked (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) +{ + if (__bos (__s) != (size_t) -1 + && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) + return __fgetws_unlocked_chk (__s, __bos (__s), __n, __stream); + return __fgetws_unlocked_alias (__s, __n, __stream); +} +#endif diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h index fe4ee80bff..0c02dcc574 100644 --- a/wcsmbs/wchar.h +++ b/wcsmbs/wchar.h @@ -833,6 +833,13 @@ extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize, # include <wctype.h> #endif + +/* Define some macros helping to catch buffer overflows. */ +#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus +# include <bits/wchar2.h> +#endif + + __END_DECLS #endif /* _WCHAR_H defined */ diff --git a/wcsmbs/wcsncpy.c b/wcsmbs/wcsncpy.c index 8469d94d79..06a20d2333 100644 --- a/wcsmbs/wcsncpy.c +++ b/wcsmbs/wcsncpy.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. @@ -22,7 +22,7 @@ /* Copy no more than N wide-characters of SRC to DEST. */ wchar_t * -wcsncpy (dest, src, n) +__wcsncpy (dest, src, n) wchar_t *dest; const wchar_t *src; size_t n; @@ -84,3 +84,4 @@ wcsncpy (dest, src, n) return s; } +weak_alias (__wcsncpy, wcsncpy) |