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author | axc <axc@yandex-team.ru> | 2022-02-10 16:47:36 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:47:36 +0300 |
commit | 7b659037613268d5eac4a1b6a7c5eff3cd36d4bf (patch) | |
tree | c0748b5dcbade83af788c0abfa89c0383d6b779c /contrib/tools/bison/gnulib/src/fopen-safer.c | |
parent | 1f5217043ad70f25dc35e75b3bd261a1e23d045e (diff) | |
download | ydb-7b659037613268d5eac4a1b6a7c5eff3cd36d4bf.tar.gz |
Restoring authorship annotation for <axc@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/tools/bison/gnulib/src/fopen-safer.c')
-rw-r--r-- | contrib/tools/bison/gnulib/src/fopen-safer.c | 126 |
1 files changed, 63 insertions, 63 deletions
diff --git a/contrib/tools/bison/gnulib/src/fopen-safer.c b/contrib/tools/bison/gnulib/src/fopen-safer.c index 2ebe252571..917920d904 100644 --- a/contrib/tools/bison/gnulib/src/fopen-safer.c +++ b/contrib/tools/bison/gnulib/src/fopen-safer.c @@ -1,63 +1,63 @@ -/* Invoke fopen, but avoid some glitches. - - Copyright (C) 2001, 2004-2006, 2009-2013 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -/* Written by Paul Eggert. */ - -#include <config.h> - -#include "stdio-safer.h" - -#include <errno.h> -#include <unistd.h> -#include "unistd-safer.h" - -/* Like fopen, but do not return stdin, stdout, or stderr. */ - -FILE * -fopen_safer (char const *file, char const *mode) -{ - FILE *fp = fopen (file, mode); - - if (fp) - { - int fd = fileno (fp); - - if (0 <= fd && fd <= STDERR_FILENO) - { - int f = dup_safer (fd); - - if (f < 0) - { - int e = errno; - fclose (fp); - errno = e; - return NULL; - } - - if (fclose (fp) != 0 - || ! (fp = fdopen (f, mode))) - { - int e = errno; - close (f); - errno = e; - return NULL; - } - } - } - - return fp; -} +/* Invoke fopen, but avoid some glitches. + + Copyright (C) 2001, 2004-2006, 2009-2013 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Written by Paul Eggert. */ + +#include <config.h> + +#include "stdio-safer.h" + +#include <errno.h> +#include <unistd.h> +#include "unistd-safer.h" + +/* Like fopen, but do not return stdin, stdout, or stderr. */ + +FILE * +fopen_safer (char const *file, char const *mode) +{ + FILE *fp = fopen (file, mode); + + if (fp) + { + int fd = fileno (fp); + + if (0 <= fd && fd <= STDERR_FILENO) + { + int f = dup_safer (fd); + + if (f < 0) + { + int e = errno; + fclose (fp); + errno = e; + return NULL; + } + + if (fclose (fp) != 0 + || ! (fp = fdopen (f, mode))) + { + int e = errno; + close (f); + errno = e; + return NULL; + } + } + } + + return fp; +} |