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head/sys/ufs/ffs/ffs_vnops.c
| Show First 20 Lines • Show All 899 Lines • ▼ Show 20 Lines | /* XXX is uio->uio_offset the right thing here? */ | ||||
| /* | /* | ||||
| * If we successfully wrote any data, and we are not the superuser | * If we successfully wrote any data, and we are not the superuser | ||||
| * we clear the setuid and setgid bits as a precaution against | * we clear the setuid and setgid bits as a precaution against | ||||
| * tampering. | * tampering. | ||||
| */ | */ | ||||
| if ((ip->i_mode & (ISUID | ISGID)) && resid > uio->uio_resid && | if ((ip->i_mode & (ISUID | ISGID)) && resid > uio->uio_resid && | ||||
| ap->a_cred) { | ap->a_cred) { | ||||
| if (priv_check_cred(ap->a_cred, PRIV_VFS_RETAINSUGID)) { | if (priv_check_cred(ap->a_cred, PRIV_VFS_RETAINSUGID)) { | ||||
| ip->i_mode &= ~(ISUID | ISGID); | vn_seqc_write_begin(vp); | ||||
| UFS_INODE_SET_MODE(ip, ip->i_mode & ~(ISUID | ISGID)); | |||||
| DIP_SET(ip, i_mode, ip->i_mode); | DIP_SET(ip, i_mode, ip->i_mode); | ||||
| vn_seqc_write_end(vp); | |||||
| } | } | ||||
| } | } | ||||
| if (error) { | if (error) { | ||||
| if (ioflag & IO_UNIT) { | if (ioflag & IO_UNIT) { | ||||
| (void)ffs_truncate(vp, osize, | (void)ffs_truncate(vp, osize, | ||||
| IO_NORMAL | (ioflag & IO_SYNC), ap->a_cred); | IO_NORMAL | (ioflag & IO_SYNC), ap->a_cred); | ||||
| uio->uio_offset -= resid - uio->uio_resid; | uio->uio_offset -= resid - uio->uio_resid; | ||||
| uio->uio_resid = resid; | uio->uio_resid = resid; | ||||
| ▲ Show 20 Lines • Show All 229 Lines • ▼ Show 20 Lines | #endif | ||||
| } | } | ||||
| /* | /* | ||||
| * If we successfully wrote any data, and we are not the superuser | * If we successfully wrote any data, and we are not the superuser | ||||
| * we clear the setuid and setgid bits as a precaution against | * we clear the setuid and setgid bits as a precaution against | ||||
| * tampering. | * tampering. | ||||
| */ | */ | ||||
| if ((ip->i_mode & (ISUID | ISGID)) && resid > uio->uio_resid && ucred) { | if ((ip->i_mode & (ISUID | ISGID)) && resid > uio->uio_resid && ucred) { | ||||
| if (priv_check_cred(ucred, PRIV_VFS_RETAINSUGID)) { | if (priv_check_cred(ucred, PRIV_VFS_RETAINSUGID)) { | ||||
| ip->i_mode &= ~(ISUID | ISGID); | vn_seqc_write_begin(vp); | ||||
| UFS_INODE_SET_MODE(ip, ip->i_mode & ~(ISUID | ISGID)); | |||||
| dp->di_mode = ip->i_mode; | dp->di_mode = ip->i_mode; | ||||
| vn_seqc_write_end(vp); | |||||
| } | } | ||||
| } | } | ||||
| if (error) { | if (error) { | ||||
| if (ioflag & IO_UNIT) { | if (ioflag & IO_UNIT) { | ||||
| (void)ffs_truncate(vp, osize, | (void)ffs_truncate(vp, osize, | ||||
| IO_EXT | (ioflag&IO_SYNC), ucred); | IO_EXT | (ioflag&IO_SYNC), ucred); | ||||
| uio->uio_offset -= resid - uio->uio_resid; | uio->uio_offset -= resid - uio->uio_resid; | ||||
| uio->uio_resid = resid; | uio->uio_resid = resid; | ||||
| ▲ Show 20 Lines • Show All 661 Lines • Show Last 20 Lines | |||||