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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-04-11 17:07:11 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-10-16 14:19:23 -0300 |
commit | 905ae44c77a4b899100de99360823a586e095622 (patch) | |
tree | 71d31e80c6f6cc43d062de42be37388aa91e7632 /sysdeps/unix/sysv/linux/seekdir.c | |
parent | f1ed4d4c2cb24f8f0d4f54c89847adf2bb185f50 (diff) | |
download | glibc-905ae44c77a4b899100de99360823a586e095622.tar.gz glibc-905ae44c77a4b899100de99360823a586e095622.tar.xz glibc-905ae44c77a4b899100de99360823a586e095622.zip |
linux: Move posix dir implementations to Linux
This generic implementation already expects a getdents API which is Linux specific. It also allows simplify it by assuming _DIRENT_HAVE_D_RECLEN and _DIRENT_HAVE_D_OFF support. The readdir are also expanded on each required implementation, futher fixes and improvements will make parametrize the implementation more complex. Checked on x86_64-linux-gnu, i686-linux-gnu, and with a build for all affected ABIs.
Diffstat (limited to 'sysdeps/unix/sysv/linux/seekdir.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/seekdir.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/seekdir.c b/sysdeps/unix/sysv/linux/seekdir.c new file mode 100644 index 0000000000..3c30520928 --- /dev/null +++ b/sysdeps/unix/sysv/linux/seekdir.c @@ -0,0 +1,35 @@ +/* Copyright (C) 1991-2020 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 <errno.h> +#include <stddef.h> +#include <dirent.h> +#include <unistd.h> +#include <dirstream.h> + +/* Seek to position POS in DIRP. */ +/* XXX should be __seekdir ? */ +void +seekdir (DIR *dirp, long int pos) +{ + __libc_lock_lock (dirp->lock); + (void) __lseek (dirp->fd, pos, SEEK_SET); + dirp->size = 0; + dirp->offset = 0; + dirp->filepos = pos; + __libc_lock_unlock (dirp->lock); +} |