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debug/vsprintf_chk.c
38 строк
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Copyright (C) 1994-2026 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 <libio/libioP.h> int ___vsprintf_chk (char *s, int flag, size_t slen, const char *format, va_list ap) { /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n can only come from read-only format strings. */ unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; /* Regardless of the value of flag, let __vsprintf_internal know that this is a call from *printf_chk. */ mode |= PRINTF_CHK; if (slen == 0) __chk_fail (); return __vsprintf_internal (s, slen, format, ap, mode); } ldbl_hidden_def (___vsprintf_chk, __vsprintf_chk) ldbl_strong_alias (___vsprintf_chk, __vsprintf_chk)