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libio/oldtmpfile.c
56 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) 1991-2026 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 <shlib-compat.h> #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) #define _IO_USE_OLD_IO_FILE #include <stdio.h> #include <unistd.h> #include <iolibio.h> #include <stdio-common/tmpdir.h> /* This returns a new stream opened on a temporary file (generated by tmpnam). The file is opened with mode "w+b" (binary read/write). If we couldn't generate a unique filename or the file couldn't be opened, NULL is returned. */ FILE * attribute_compat_text_section __old_tmpfile (void) { char buf[FILENAME_MAX]; int fd; FILE *f; if (__path_search (buf, FILENAME_MAX, NULL, "tmpf", 0)) return NULL; fd = __gen_tempname (buf, 0, 0, __GT_FILE); if (fd < 0) return NULL; /* Note that this relies on the Unix semantics that a file is not really removed until it is closed. */ (void) __unlink (buf); if ((f = _IO_old_fdopen (fd, "w+b")) == NULL) __close (fd); return f; } compat_symbol (libc, __old_tmpfile, tmpfile, GLIBC_2_0); #endif