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8becd09bb9
* find/exec.c: Include config.h, then system headers followed by gnulib headers and last, find-specific headers. * find/find.c: Likewise. * find/finddata.c: Likewise. * find/fstype.c: Likewise. * find/ftsfind.c: Likewise. * find/parser.c: Likewise. * find/pred.c: Likewise. * find/tree.c: Likewise. * find/util.c: Likewise. * lib/buildcmd.c: Likewise. * lib/dircallback.c: Likewise. * lib/extendbuf.c: Likewise. * lib/fdleak.c: Likewise. * lib/findutils-version.c: Likewise. * lib/listfile.c: Likewise. * lib/printquoted.c: Likewise. * lib/qmark.c: Likewise. * lib/regexprops.c: Likewise. * lib/regextype.c: Likewise. * lib/safe-atoi.c: Likewise. * lib/savedirinfo.c: Likewise. * lib/splitstring.c: Likewise. * lib/test_splitstring.c: Likewise. * lib/waitpid.c: Likewise. * locate/bigram.c: Likewise. * locate/code.c: Likewise. * locate/frcode.c: Likewise. * locate/locate.c: Likewise. * locate/word_io.c: Likewise. * xargs/xargs.c: Likewise.
110 lines
2.4 KiB
C
110 lines
2.4 KiB
C
/* listfile.c -- run a function in a specific directory
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Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
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Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* This file was written by James Youngman, based on gnulib'c at-func.c.
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*/
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/* config.h must be included first. */
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#include <config.h>
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/* system headers. */
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#include <errno.h>
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#include <locale.h>
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#include <stdarg.h>
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#include <sys/stat.h>
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/* gnulib headers. */
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#include "fcntl--.h"
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#include "openat.h"
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#include "save-cwd.h"
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/* find headers. */
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#include "dircallback.h"
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int
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run_in_dir (const struct saved_cwd *there,
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int (*callback)(void*), void *usercontext)
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{
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int err = -1;
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int saved_errno = 0;
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struct saved_cwd here;
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if (0 == save_cwd (&here))
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{
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if (0 == restore_cwd (there))
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{
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err = callback(usercontext);
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saved_errno = (err < 0 ? errno : 0);
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}
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else
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{
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openat_restore_fail (errno);
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}
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if (restore_cwd (&here) != 0)
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openat_restore_fail (errno);
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free_cwd (&here);
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}
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else
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{
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openat_save_fail (errno);
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}
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if (saved_errno)
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errno = saved_errno;
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return err;
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}
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int
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run_in_dirfd (int dir_fd, int (*callback)(void*), void *usercontext)
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{
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if (dir_fd == AT_FDCWD)
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{
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return (*callback)(usercontext);
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}
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else
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{
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struct saved_cwd saved_cwd;
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int saved_errno;
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int err;
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if (save_cwd (&saved_cwd) != 0)
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openat_save_fail (errno);
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if (fchdir (dir_fd) != 0)
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{
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saved_errno = errno;
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free_cwd (&saved_cwd);
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errno = saved_errno;
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return -1;
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}
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err = (*callback)(usercontext);
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saved_errno = (err < 0 ? errno : 0);
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if (restore_cwd (&saved_cwd) != 0)
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openat_restore_fail (errno);
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free_cwd (&saved_cwd);
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if (saved_errno)
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errno = saved_errno;
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return err;
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}
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}
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