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stdio-common/tst-printf-format-vs.h
64 строки
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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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/* Test feature wrapper for formatted 'vsprintf' output. Copyright (C) 2024-2026 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 <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <support/next_to_fault.h> #define SPRINTF_BUFFER_SIZE 65536 static struct support_next_to_fault ntf; #define PREPARE printf_under_test_init static void printf_under_test_init (int argc, char **argv) { ntf = support_next_to_fault_allocate (SPRINTF_BUFFER_SIZE); } static void __attribute__ ((destructor)) printf_under_test_fini (void) { support_next_to_fault_free (&ntf); } static int printf_under_test (const char *restrict fmt, ...) { char *str = ntf.buffer; va_list ap; int result; va_start (ap, fmt); result = vsprintf (str, fmt, ap); va_end (ap); if (result < 0) { perror ("vsprintf"); goto out; } if (fwrite (str, sizeof (*str), result, stdout) != result) { perror ("fwrite"); result = -1; } out: return result; }