Date: Sun, 3 Jun 2007 11:01:59 GMT From: Roman Divacky <rdivacky@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 120830 for review Message-ID: <200706031101.l53B1xSe021245@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=120830 Change 120830 by rdivacky@rdivacky_witten on 2007/06/03 11:01:11 Implement kern_lstatat. Affected files ... .. //depot/projects/soc2007/rdivacky/linux_at/sys/kern/vfs_syscalls.c#7 edit Differences ... ==== //depot/projects/soc2007/rdivacky/linux_at/sys/kern/vfs_syscalls.c#7 (text+ko) ==== @@ -93,6 +93,8 @@ struct nameidata *nd); static int kern_common_stat(struct thread *td, struct stat *sbp, struct nameidata *nd); +static int kern_common_lstat(struct thread *td, struct stat *sbp, + struct nameidata *nd); /* * The module initialization routine for POSIX asynchronous I/O will @@ -2216,18 +2218,53 @@ int kern_lstat(struct thread *td, char *path, enum uio_seg pathseg, struct stat *sbp) { - struct vnode *vp; - struct stat sb; struct nameidata nd; - int error, vfslocked; NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | LOCKSHARED | MPSAFE | AUDITVNODE1, pathseg, path, td); if ((error = namei(&nd)) != 0) return (error); + + return kern_common_lstat(td, sbp, &nd) +} + +int +kern_lstatat(struct thread *td, char *path, enum uio_seg pathseg, struct stat *sbp, int dfd) +{ + int error; + struct nameidata nd; + struct vnode *dir_vn; + + if (dirfd == AT_FDCWD) + dir_vn = NULL; + else { + error = fgetvp(td, dirfd, &dir_vn); + if (error) + return (error); + if (dir_vn->v_type != VDIR) { + vrele(dir_vn); + return (ENOTDIR); + } + } + + NDINIT_AT(&nd, LOOKUP, NOFOLLOW | AUDITVNODE1 | MPSAFE, pathseg, path, td, dir_vn); + + error = kern_common_stat(td, sbp, &nd); + if (dirfd != AT_FDCWD) + vrele(dir_vn); + return (error); +} + +static int +kern_common_lstat(struct thread *td, struct stat *sbp, struct nameidata *nd) +{ + struct vnode *vp; + struct stat sb; + int error, vfslocked; + vfslocked = NDHASGIANT(&nd); - vp = nd.ni_vp; + vp = nd->ni_vp; error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td); NDFREE(&nd, NDF_ONLY_PNBUF); vput(vp);
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