netbsd32_fs.c revision 1.1.2.3
1 1.1.2.3 bouyer /* $NetBSD: netbsd32_fs.c,v 1.1.2.3 2001/04/21 17:46:20 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /* 4 1.1.2.2 bouyer * Copyright (c) 1998, 2001 Matthew R. Green 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 9 1.1.2.2 bouyer * are met: 10 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 15 1.1.2.2 bouyer * 3. The name of the author may not be used to endorse or promote products 16 1.1.2.2 bouyer * derived from this software without specific prior written permission. 17 1.1.2.2 bouyer * 18 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.1.2.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.1.2.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.1.2.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.1.2.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 1.1.2.2 bouyer * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 1.1.2.2 bouyer * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 1.1.2.2 bouyer * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 1.1.2.2 bouyer * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 1.1.2.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 1.1.2.2 bouyer * SUCH DAMAGE. 29 1.1.2.2 bouyer */ 30 1.1.2.2 bouyer 31 1.1.2.2 bouyer #if defined(_KERNEL) && !defined(_LKM) 32 1.1.2.2 bouyer #include "opt_ktrace.h" 33 1.1.2.2 bouyer #endif 34 1.1.2.2 bouyer 35 1.1.2.2 bouyer #include <sys/param.h> 36 1.1.2.2 bouyer #include <sys/systm.h> 37 1.1.2.2 bouyer #include <sys/malloc.h> 38 1.1.2.2 bouyer #include <sys/mount.h> 39 1.1.2.2 bouyer #include <sys/socket.h> 40 1.1.2.2 bouyer #include <sys/socketvar.h> 41 1.1.2.2 bouyer #include <sys/stat.h> 42 1.1.2.2 bouyer #include <sys/time.h> 43 1.1.2.2 bouyer #include <sys/ktrace.h> 44 1.1.2.2 bouyer #include <sys/resourcevar.h> 45 1.1.2.2 bouyer #include <sys/vnode.h> 46 1.1.2.2 bouyer #include <sys/file.h> 47 1.1.2.2 bouyer #include <sys/filedesc.h> 48 1.1.2.2 bouyer #include <sys/namei.h> 49 1.1.2.2 bouyer #include <sys/syscallargs.h> 50 1.1.2.2 bouyer #include <sys/proc.h> 51 1.1.2.2 bouyer 52 1.1.2.2 bouyer #include <compat/netbsd32/netbsd32.h> 53 1.1.2.2 bouyer #include <compat/netbsd32/netbsd32_syscallargs.h> 54 1.1.2.2 bouyer #include <compat/netbsd32/netbsd32_conv.h> 55 1.1.2.2 bouyer 56 1.1.2.2 bouyer 57 1.1.2.2 bouyer static int dofilereadv32 __P((struct proc *, int, struct file *, struct netbsd32_iovec *, 58 1.1.2.2 bouyer int, off_t *, int, register_t *)); 59 1.1.2.2 bouyer static int dofilewritev32 __P((struct proc *, int, struct file *, struct netbsd32_iovec *, 60 1.1.2.2 bouyer int, off_t *, int, register_t *)); 61 1.1.2.2 bouyer static int change_utimes32 __P((struct vnode *, netbsd32_timevalp_t, struct proc *)); 62 1.1.2.2 bouyer 63 1.1.2.2 bouyer int 64 1.1.2.2 bouyer netbsd32_getfsstat(p, v, retval) 65 1.1.2.2 bouyer struct proc *p; 66 1.1.2.2 bouyer void *v; 67 1.1.2.2 bouyer register_t *retval; 68 1.1.2.2 bouyer { 69 1.1.2.2 bouyer struct netbsd32_getfsstat_args /* { 70 1.1.2.2 bouyer syscallarg(netbsd32_statfsp_t) buf; 71 1.1.2.2 bouyer syscallarg(netbsd32_long) bufsize; 72 1.1.2.2 bouyer syscallarg(int) flags; 73 1.1.2.2 bouyer } */ *uap = v; 74 1.1.2.2 bouyer struct mount *mp, *nmp; 75 1.1.2.2 bouyer struct statfs *sp; 76 1.1.2.2 bouyer struct netbsd32_statfs sb32; 77 1.1.2.2 bouyer caddr_t sfsp; 78 1.1.2.2 bouyer long count, maxcount, error; 79 1.1.2.2 bouyer 80 1.1.2.2 bouyer maxcount = SCARG(uap, bufsize) / sizeof(struct netbsd32_statfs); 81 1.1.2.2 bouyer sfsp = (caddr_t)(u_long)SCARG(uap, buf); 82 1.1.2.2 bouyer simple_lock(&mountlist_slock); 83 1.1.2.2 bouyer count = 0; 84 1.1.2.2 bouyer for (mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nmp) { 85 1.1.2.2 bouyer if (vfs_busy(mp, LK_NOWAIT, &mountlist_slock)) { 86 1.1.2.2 bouyer nmp = mp->mnt_list.cqe_next; 87 1.1.2.2 bouyer continue; 88 1.1.2.2 bouyer } 89 1.1.2.2 bouyer if (sfsp && count < maxcount) { 90 1.1.2.2 bouyer sp = &mp->mnt_stat; 91 1.1.2.2 bouyer /* 92 1.1.2.2 bouyer * If MNT_NOWAIT or MNT_LAZY is specified, do not 93 1.1.2.2 bouyer * refresh the fsstat cache. MNT_WAIT or MNT_LAXY 94 1.1.2.2 bouyer * overrides MNT_NOWAIT. 95 1.1.2.2 bouyer */ 96 1.1.2.2 bouyer if (SCARG(uap, flags) != MNT_NOWAIT && 97 1.1.2.2 bouyer SCARG(uap, flags) != MNT_LAZY && 98 1.1.2.2 bouyer (SCARG(uap, flags) == MNT_WAIT || 99 1.1.2.2 bouyer SCARG(uap, flags) == 0) && 100 1.1.2.2 bouyer (error = VFS_STATFS(mp, sp, p)) != 0) { 101 1.1.2.2 bouyer simple_lock(&mountlist_slock); 102 1.1.2.2 bouyer nmp = mp->mnt_list.cqe_next; 103 1.1.2.2 bouyer vfs_unbusy(mp); 104 1.1.2.2 bouyer continue; 105 1.1.2.2 bouyer } 106 1.1.2.2 bouyer sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; 107 1.1.2.2 bouyer sp->f_oflags = sp->f_flags & 0xffff; 108 1.1.2.2 bouyer netbsd32_from_statfs(sp, &sb32); 109 1.1.2.2 bouyer error = copyout(&sb32, sfsp, sizeof(sb32)); 110 1.1.2.2 bouyer if (error) { 111 1.1.2.2 bouyer vfs_unbusy(mp); 112 1.1.2.2 bouyer return (error); 113 1.1.2.2 bouyer } 114 1.1.2.2 bouyer sfsp += sizeof(sb32); 115 1.1.2.2 bouyer } 116 1.1.2.2 bouyer count++; 117 1.1.2.2 bouyer simple_lock(&mountlist_slock); 118 1.1.2.2 bouyer nmp = mp->mnt_list.cqe_next; 119 1.1.2.2 bouyer vfs_unbusy(mp); 120 1.1.2.2 bouyer } 121 1.1.2.2 bouyer simple_unlock(&mountlist_slock); 122 1.1.2.2 bouyer if (sfsp && count > maxcount) 123 1.1.2.2 bouyer *retval = maxcount; 124 1.1.2.2 bouyer else 125 1.1.2.2 bouyer *retval = count; 126 1.1.2.2 bouyer return (0); 127 1.1.2.2 bouyer } 128 1.1.2.2 bouyer 129 1.1.2.2 bouyer int 130 1.1.2.2 bouyer netbsd32_readv(p, v, retval) 131 1.1.2.2 bouyer struct proc *p; 132 1.1.2.2 bouyer void *v; 133 1.1.2.2 bouyer register_t *retval; 134 1.1.2.2 bouyer { 135 1.1.2.2 bouyer struct netbsd32_readv_args /* { 136 1.1.2.2 bouyer syscallarg(int) fd; 137 1.1.2.2 bouyer syscallarg(const netbsd32_iovecp_t) iovp; 138 1.1.2.2 bouyer syscallarg(int) iovcnt; 139 1.1.2.2 bouyer } */ *uap = v; 140 1.1.2.2 bouyer int fd = SCARG(uap, fd); 141 1.1.2.2 bouyer struct file *fp; 142 1.1.2.2 bouyer struct filedesc *fdp = p->p_fd; 143 1.1.2.2 bouyer 144 1.1.2.2 bouyer if ((u_int)fd >= fdp->fd_nfiles || 145 1.1.2.2 bouyer (fp = fdp->fd_ofiles[fd]) == NULL || 146 1.1.2.2 bouyer (fp->f_flag & FREAD) == 0) 147 1.1.2.2 bouyer return (EBADF); 148 1.1.2.2 bouyer 149 1.1.2.2 bouyer return (dofilereadv32(p, fd, fp, (struct netbsd32_iovec *)(u_long)SCARG(uap, iovp), 150 1.1.2.2 bouyer SCARG(uap, iovcnt), &fp->f_offset, FOF_UPDATE_OFFSET, retval)); 151 1.1.2.2 bouyer } 152 1.1.2.2 bouyer 153 1.1.2.2 bouyer /* Damn thing copies in the iovec! */ 154 1.1.2.2 bouyer int 155 1.1.2.2 bouyer dofilereadv32(p, fd, fp, iovp, iovcnt, offset, flags, retval) 156 1.1.2.2 bouyer struct proc *p; 157 1.1.2.2 bouyer int fd; 158 1.1.2.2 bouyer struct file *fp; 159 1.1.2.2 bouyer struct netbsd32_iovec *iovp; 160 1.1.2.2 bouyer int iovcnt; 161 1.1.2.2 bouyer off_t *offset; 162 1.1.2.2 bouyer int flags; 163 1.1.2.2 bouyer register_t *retval; 164 1.1.2.2 bouyer { 165 1.1.2.2 bouyer struct uio auio; 166 1.1.2.2 bouyer struct iovec *iov; 167 1.1.2.2 bouyer struct iovec *needfree; 168 1.1.2.2 bouyer struct iovec aiov[UIO_SMALLIOV]; 169 1.1.2.2 bouyer long i, cnt, error = 0; 170 1.1.2.2 bouyer u_int iovlen; 171 1.1.2.2 bouyer #ifdef KTRACE 172 1.1.2.2 bouyer struct iovec *ktriov = NULL; 173 1.1.2.2 bouyer #endif 174 1.1.2.2 bouyer 175 1.1.2.2 bouyer /* note: can't use iovlen until iovcnt is validated */ 176 1.1.2.2 bouyer iovlen = iovcnt * sizeof(struct iovec); 177 1.1.2.2 bouyer if ((u_int)iovcnt > UIO_SMALLIOV) { 178 1.1.2.2 bouyer if ((u_int)iovcnt > IOV_MAX) 179 1.1.2.2 bouyer return (EINVAL); 180 1.1.2.2 bouyer MALLOC(iov, struct iovec *, iovlen, M_IOV, M_WAITOK); 181 1.1.2.2 bouyer needfree = iov; 182 1.1.2.2 bouyer } else if ((u_int)iovcnt > 0) { 183 1.1.2.2 bouyer iov = aiov; 184 1.1.2.2 bouyer needfree = NULL; 185 1.1.2.2 bouyer } else 186 1.1.2.2 bouyer return (EINVAL); 187 1.1.2.2 bouyer 188 1.1.2.2 bouyer auio.uio_iov = iov; 189 1.1.2.2 bouyer auio.uio_iovcnt = iovcnt; 190 1.1.2.2 bouyer auio.uio_rw = UIO_READ; 191 1.1.2.2 bouyer auio.uio_segflg = UIO_USERSPACE; 192 1.1.2.2 bouyer auio.uio_procp = p; 193 1.1.2.2 bouyer error = netbsd32_to_iovecin(iovp, iov, iovcnt); 194 1.1.2.2 bouyer if (error) 195 1.1.2.2 bouyer goto done; 196 1.1.2.2 bouyer auio.uio_resid = 0; 197 1.1.2.2 bouyer for (i = 0; i < iovcnt; i++) { 198 1.1.2.2 bouyer auio.uio_resid += iov->iov_len; 199 1.1.2.2 bouyer /* 200 1.1.2.2 bouyer * Reads return ssize_t because -1 is returned on error. 201 1.1.2.2 bouyer * Therefore we must restrict the length to SSIZE_MAX to 202 1.1.2.2 bouyer * avoid garbage return values. 203 1.1.2.2 bouyer */ 204 1.1.2.2 bouyer if (iov->iov_len > SSIZE_MAX || auio.uio_resid > SSIZE_MAX) { 205 1.1.2.2 bouyer error = EINVAL; 206 1.1.2.2 bouyer goto done; 207 1.1.2.2 bouyer } 208 1.1.2.2 bouyer iov++; 209 1.1.2.2 bouyer } 210 1.1.2.2 bouyer #ifdef KTRACE 211 1.1.2.2 bouyer /* 212 1.1.2.2 bouyer * if tracing, save a copy of iovec 213 1.1.2.2 bouyer */ 214 1.1.2.2 bouyer if (KTRPOINT(p, KTR_GENIO)) { 215 1.1.2.2 bouyer MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); 216 1.1.2.2 bouyer memcpy((caddr_t)ktriov, (caddr_t)auio.uio_iov, iovlen); 217 1.1.2.2 bouyer } 218 1.1.2.2 bouyer #endif 219 1.1.2.2 bouyer cnt = auio.uio_resid; 220 1.1.2.2 bouyer error = (*fp->f_ops->fo_read)(fp, offset, &auio, fp->f_cred, flags); 221 1.1.2.2 bouyer if (error) 222 1.1.2.2 bouyer if (auio.uio_resid != cnt && (error == ERESTART || 223 1.1.2.2 bouyer error == EINTR || error == EWOULDBLOCK)) 224 1.1.2.2 bouyer error = 0; 225 1.1.2.2 bouyer cnt -= auio.uio_resid; 226 1.1.2.2 bouyer #ifdef KTRACE 227 1.1.2.2 bouyer if (KTRPOINT(p, KTR_GENIO)) 228 1.1.2.2 bouyer if (error == 0) { 229 1.1.2.2 bouyer ktrgenio(p, fd, UIO_READ, ktriov, cnt, 230 1.1.2.2 bouyer error); 231 1.1.2.2 bouyer FREE(ktriov, M_TEMP); 232 1.1.2.2 bouyer } 233 1.1.2.2 bouyer #endif 234 1.1.2.2 bouyer *retval = cnt; 235 1.1.2.2 bouyer done: 236 1.1.2.2 bouyer if (needfree) 237 1.1.2.2 bouyer FREE(needfree, M_IOV); 238 1.1.2.2 bouyer return (error); 239 1.1.2.2 bouyer } 240 1.1.2.2 bouyer 241 1.1.2.2 bouyer int 242 1.1.2.2 bouyer netbsd32_writev(p, v, retval) 243 1.1.2.2 bouyer struct proc *p; 244 1.1.2.2 bouyer void *v; 245 1.1.2.2 bouyer register_t *retval; 246 1.1.2.2 bouyer { 247 1.1.2.2 bouyer struct netbsd32_writev_args /* { 248 1.1.2.2 bouyer syscallarg(int) fd; 249 1.1.2.2 bouyer syscallarg(const netbsd32_iovecp_t) iovp; 250 1.1.2.2 bouyer syscallarg(int) iovcnt; 251 1.1.2.2 bouyer } */ *uap = v; 252 1.1.2.2 bouyer int fd = SCARG(uap, fd); 253 1.1.2.2 bouyer struct file *fp; 254 1.1.2.2 bouyer struct filedesc *fdp = p->p_fd; 255 1.1.2.2 bouyer 256 1.1.2.2 bouyer if ((u_int)fd >= fdp->fd_nfiles || 257 1.1.2.2 bouyer (fp = fdp->fd_ofiles[fd]) == NULL || 258 1.1.2.2 bouyer (fp->f_flag & FWRITE) == 0) 259 1.1.2.2 bouyer return (EBADF); 260 1.1.2.2 bouyer 261 1.1.2.2 bouyer return (dofilewritev32(p, fd, fp, (struct netbsd32_iovec *)(u_long)SCARG(uap, iovp), 262 1.1.2.2 bouyer SCARG(uap, iovcnt), &fp->f_offset, FOF_UPDATE_OFFSET, retval)); 263 1.1.2.2 bouyer } 264 1.1.2.2 bouyer 265 1.1.2.2 bouyer int 266 1.1.2.2 bouyer dofilewritev32(p, fd, fp, iovp, iovcnt, offset, flags, retval) 267 1.1.2.2 bouyer struct proc *p; 268 1.1.2.2 bouyer int fd; 269 1.1.2.2 bouyer struct file *fp; 270 1.1.2.2 bouyer struct netbsd32_iovec *iovp; 271 1.1.2.2 bouyer int iovcnt; 272 1.1.2.2 bouyer off_t *offset; 273 1.1.2.2 bouyer int flags; 274 1.1.2.2 bouyer register_t *retval; 275 1.1.2.2 bouyer { 276 1.1.2.2 bouyer struct uio auio; 277 1.1.2.2 bouyer struct iovec *iov; 278 1.1.2.2 bouyer struct iovec *needfree; 279 1.1.2.2 bouyer struct iovec aiov[UIO_SMALLIOV]; 280 1.1.2.2 bouyer long i, cnt, error = 0; 281 1.1.2.2 bouyer u_int iovlen; 282 1.1.2.2 bouyer #ifdef KTRACE 283 1.1.2.2 bouyer struct iovec *ktriov = NULL; 284 1.1.2.2 bouyer #endif 285 1.1.2.2 bouyer 286 1.1.2.2 bouyer /* note: can't use iovlen until iovcnt is validated */ 287 1.1.2.2 bouyer iovlen = iovcnt * sizeof(struct iovec); 288 1.1.2.2 bouyer if ((u_int)iovcnt > UIO_SMALLIOV) { 289 1.1.2.2 bouyer if ((u_int)iovcnt > IOV_MAX) 290 1.1.2.2 bouyer return (EINVAL); 291 1.1.2.2 bouyer MALLOC(iov, struct iovec *, iovlen, M_IOV, M_WAITOK); 292 1.1.2.2 bouyer needfree = iov; 293 1.1.2.2 bouyer } else if ((u_int)iovcnt > 0) { 294 1.1.2.2 bouyer iov = aiov; 295 1.1.2.2 bouyer needfree = NULL; 296 1.1.2.2 bouyer } else 297 1.1.2.2 bouyer return (EINVAL); 298 1.1.2.2 bouyer 299 1.1.2.2 bouyer auio.uio_iov = iov; 300 1.1.2.2 bouyer auio.uio_iovcnt = iovcnt; 301 1.1.2.2 bouyer auio.uio_rw = UIO_WRITE; 302 1.1.2.2 bouyer auio.uio_segflg = UIO_USERSPACE; 303 1.1.2.2 bouyer auio.uio_procp = p; 304 1.1.2.2 bouyer error = netbsd32_to_iovecin(iovp, iov, iovcnt); 305 1.1.2.2 bouyer if (error) 306 1.1.2.2 bouyer goto done; 307 1.1.2.2 bouyer auio.uio_resid = 0; 308 1.1.2.2 bouyer for (i = 0; i < iovcnt; i++) { 309 1.1.2.2 bouyer auio.uio_resid += iov->iov_len; 310 1.1.2.2 bouyer /* 311 1.1.2.2 bouyer * Writes return ssize_t because -1 is returned on error. 312 1.1.2.2 bouyer * Therefore we must restrict the length to SSIZE_MAX to 313 1.1.2.2 bouyer * avoid garbage return values. 314 1.1.2.2 bouyer */ 315 1.1.2.2 bouyer if (iov->iov_len > SSIZE_MAX || auio.uio_resid > SSIZE_MAX) { 316 1.1.2.2 bouyer error = EINVAL; 317 1.1.2.2 bouyer goto done; 318 1.1.2.2 bouyer } 319 1.1.2.2 bouyer iov++; 320 1.1.2.2 bouyer } 321 1.1.2.2 bouyer #ifdef KTRACE 322 1.1.2.2 bouyer /* 323 1.1.2.2 bouyer * if tracing, save a copy of iovec 324 1.1.2.2 bouyer */ 325 1.1.2.2 bouyer if (KTRPOINT(p, KTR_GENIO)) { 326 1.1.2.2 bouyer MALLOC(ktriov, struct iovec *, iovlen, M_TEMP, M_WAITOK); 327 1.1.2.2 bouyer memcpy((caddr_t)ktriov, (caddr_t)auio.uio_iov, iovlen); 328 1.1.2.2 bouyer } 329 1.1.2.2 bouyer #endif 330 1.1.2.2 bouyer cnt = auio.uio_resid; 331 1.1.2.2 bouyer error = (*fp->f_ops->fo_write)(fp, offset, &auio, fp->f_cred, flags); 332 1.1.2.2 bouyer if (error) { 333 1.1.2.2 bouyer if (auio.uio_resid != cnt && (error == ERESTART || 334 1.1.2.2 bouyer error == EINTR || error == EWOULDBLOCK)) 335 1.1.2.2 bouyer error = 0; 336 1.1.2.2 bouyer if (error == EPIPE) 337 1.1.2.2 bouyer psignal(p, SIGPIPE); 338 1.1.2.2 bouyer } 339 1.1.2.2 bouyer cnt -= auio.uio_resid; 340 1.1.2.2 bouyer #ifdef KTRACE 341 1.1.2.2 bouyer if (KTRPOINT(p, KTR_GENIO)) 342 1.1.2.2 bouyer if (error == 0) { 343 1.1.2.2 bouyer ktrgenio(p, fd, UIO_WRITE, ktriov, cnt, 344 1.1.2.2 bouyer error); 345 1.1.2.2 bouyer FREE(ktriov, M_TEMP); 346 1.1.2.2 bouyer } 347 1.1.2.2 bouyer #endif 348 1.1.2.2 bouyer *retval = cnt; 349 1.1.2.2 bouyer done: 350 1.1.2.2 bouyer if (needfree) 351 1.1.2.2 bouyer FREE(needfree, M_IOV); 352 1.1.2.2 bouyer return (error); 353 1.1.2.2 bouyer } 354 1.1.2.2 bouyer 355 1.1.2.2 bouyer int 356 1.1.2.2 bouyer netbsd32_utimes(p, v, retval) 357 1.1.2.2 bouyer struct proc *p; 358 1.1.2.2 bouyer void *v; 359 1.1.2.2 bouyer register_t *retval; 360 1.1.2.2 bouyer { 361 1.1.2.2 bouyer struct netbsd32_utimes_args /* { 362 1.1.2.2 bouyer syscallarg(const netbsd32_charp) path; 363 1.1.2.2 bouyer syscallarg(const netbsd32_timevalp_t) tptr; 364 1.1.2.2 bouyer } */ *uap = v; 365 1.1.2.2 bouyer int error; 366 1.1.2.2 bouyer struct nameidata nd; 367 1.1.2.2 bouyer 368 1.1.2.2 bouyer NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, (char *)(u_long)SCARG(uap, path), p); 369 1.1.2.2 bouyer if ((error = namei(&nd)) != 0) 370 1.1.2.2 bouyer return (error); 371 1.1.2.2 bouyer 372 1.1.2.2 bouyer error = change_utimes32(nd.ni_vp, SCARG(uap, tptr), p); 373 1.1.2.2 bouyer 374 1.1.2.2 bouyer vrele(nd.ni_vp); 375 1.1.2.2 bouyer return (error); 376 1.1.2.2 bouyer } 377 1.1.2.2 bouyer 378 1.1.2.2 bouyer /* 379 1.1.2.2 bouyer * Common routine to set access and modification times given a vnode. 380 1.1.2.2 bouyer */ 381 1.1.2.2 bouyer static int 382 1.1.2.2 bouyer change_utimes32(vp, tptr, p) 383 1.1.2.2 bouyer struct vnode *vp; 384 1.1.2.2 bouyer netbsd32_timevalp_t tptr; 385 1.1.2.2 bouyer struct proc *p; 386 1.1.2.2 bouyer { 387 1.1.2.2 bouyer struct netbsd32_timeval tv32[2]; 388 1.1.2.2 bouyer struct timeval tv[2]; 389 1.1.2.2 bouyer struct vattr vattr; 390 1.1.2.2 bouyer int error; 391 1.1.2.2 bouyer 392 1.1.2.2 bouyer VATTR_NULL(&vattr); 393 1.1.2.2 bouyer if (tptr == NULL) { 394 1.1.2.2 bouyer microtime(&tv[0]); 395 1.1.2.2 bouyer tv[1] = tv[0]; 396 1.1.2.2 bouyer vattr.va_vaflags |= VA_UTIMES_NULL; 397 1.1.2.2 bouyer } else { 398 1.1.2.2 bouyer error = copyin((caddr_t)(u_long)tptr, tv32, sizeof(tv32)); 399 1.1.2.2 bouyer if (error) 400 1.1.2.2 bouyer return (error); 401 1.1.2.2 bouyer netbsd32_to_timeval(&tv32[0], &tv[0]); 402 1.1.2.2 bouyer netbsd32_to_timeval(&tv32[1], &tv[1]); 403 1.1.2.2 bouyer } 404 1.1.2.2 bouyer VOP_LEASE(vp, p, p->p_ucred, LEASE_WRITE); 405 1.1.2.2 bouyer vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 406 1.1.2.2 bouyer vattr.va_atime.tv_sec = tv[0].tv_sec; 407 1.1.2.2 bouyer vattr.va_atime.tv_nsec = tv[0].tv_usec * 1000; 408 1.1.2.2 bouyer vattr.va_mtime.tv_sec = tv[1].tv_sec; 409 1.1.2.2 bouyer vattr.va_mtime.tv_nsec = tv[1].tv_usec * 1000; 410 1.1.2.2 bouyer error = VOP_SETATTR(vp, &vattr, p->p_ucred, p); 411 1.1.2.2 bouyer VOP_UNLOCK(vp, 0); 412 1.1.2.2 bouyer return (error); 413 1.1.2.2 bouyer } 414 1.1.2.2 bouyer 415 1.1.2.2 bouyer int 416 1.1.2.2 bouyer netbsd32_statfs(p, v, retval) 417 1.1.2.2 bouyer struct proc *p; 418 1.1.2.2 bouyer void *v; 419 1.1.2.2 bouyer register_t *retval; 420 1.1.2.2 bouyer { 421 1.1.2.2 bouyer struct netbsd32_statfs_args /* { 422 1.1.2.2 bouyer syscallarg(const netbsd32_charp) path; 423 1.1.2.2 bouyer syscallarg(netbsd32_statfsp_t) buf; 424 1.1.2.2 bouyer } */ *uap = v; 425 1.1.2.2 bouyer struct mount *mp; 426 1.1.2.2 bouyer struct statfs *sp; 427 1.1.2.2 bouyer struct netbsd32_statfs s32; 428 1.1.2.2 bouyer int error; 429 1.1.2.2 bouyer struct nameidata nd; 430 1.1.2.2 bouyer 431 1.1.2.2 bouyer NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, (char *)(u_long)SCARG(uap, path), p); 432 1.1.2.2 bouyer if ((error = namei(&nd)) != 0) 433 1.1.2.2 bouyer return (error); 434 1.1.2.2 bouyer mp = nd.ni_vp->v_mount; 435 1.1.2.2 bouyer sp = &mp->mnt_stat; 436 1.1.2.2 bouyer vrele(nd.ni_vp); 437 1.1.2.2 bouyer if ((error = VFS_STATFS(mp, sp, p)) != 0) 438 1.1.2.2 bouyer return (error); 439 1.1.2.2 bouyer sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; 440 1.1.2.2 bouyer netbsd32_from_statfs(sp, &s32); 441 1.1.2.2 bouyer return (copyout(&s32, (caddr_t)(u_long)SCARG(uap, buf), sizeof(s32))); 442 1.1.2.2 bouyer } 443 1.1.2.2 bouyer 444 1.1.2.2 bouyer int 445 1.1.2.2 bouyer netbsd32_fstatfs(p, v, retval) 446 1.1.2.2 bouyer struct proc *p; 447 1.1.2.2 bouyer void *v; 448 1.1.2.2 bouyer register_t *retval; 449 1.1.2.2 bouyer { 450 1.1.2.2 bouyer struct netbsd32_fstatfs_args /* { 451 1.1.2.2 bouyer syscallarg(int) fd; 452 1.1.2.2 bouyer syscallarg(netbsd32_statfsp_t) buf; 453 1.1.2.2 bouyer } */ *uap = v; 454 1.1.2.2 bouyer struct file *fp; 455 1.1.2.2 bouyer struct mount *mp; 456 1.1.2.2 bouyer struct statfs *sp; 457 1.1.2.2 bouyer struct netbsd32_statfs s32; 458 1.1.2.2 bouyer int error; 459 1.1.2.2 bouyer 460 1.1.2.2 bouyer /* getvnode() will use the descriptor for us */ 461 1.1.2.2 bouyer if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 462 1.1.2.2 bouyer return (error); 463 1.1.2.2 bouyer mp = ((struct vnode *)fp->f_data)->v_mount; 464 1.1.2.2 bouyer sp = &mp->mnt_stat; 465 1.1.2.2 bouyer if ((error = VFS_STATFS(mp, sp, p)) != 0) 466 1.1.2.2 bouyer goto out; 467 1.1.2.2 bouyer sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; 468 1.1.2.2 bouyer netbsd32_from_statfs(sp, &s32); 469 1.1.2.2 bouyer error = copyout(&s32, (caddr_t)(u_long)SCARG(uap, buf), sizeof(s32)); 470 1.1.2.2 bouyer out: 471 1.1.2.2 bouyer FILE_UNUSE(fp, p); 472 1.1.2.2 bouyer return (error); 473 1.1.2.2 bouyer } 474 1.1.2.2 bouyer 475 1.1.2.2 bouyer int 476 1.1.2.2 bouyer netbsd32_futimes(p, v, retval) 477 1.1.2.2 bouyer struct proc *p; 478 1.1.2.2 bouyer void *v; 479 1.1.2.2 bouyer register_t *retval; 480 1.1.2.2 bouyer { 481 1.1.2.2 bouyer struct netbsd32_futimes_args /* { 482 1.1.2.2 bouyer syscallarg(int) fd; 483 1.1.2.2 bouyer syscallarg(const netbsd32_timevalp_t) tptr; 484 1.1.2.2 bouyer } */ *uap = v; 485 1.1.2.2 bouyer int error; 486 1.1.2.2 bouyer struct file *fp; 487 1.1.2.2 bouyer 488 1.1.2.2 bouyer /* getvnode() will use the descriptor for us */ 489 1.1.2.2 bouyer if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 490 1.1.2.2 bouyer return (error); 491 1.1.2.2 bouyer 492 1.1.2.2 bouyer error = change_utimes32((struct vnode *)fp->f_data, 493 1.1.2.2 bouyer SCARG(uap, tptr), p); 494 1.1.2.2 bouyer FILE_UNUSE(fp, p); 495 1.1.2.2 bouyer return (error); 496 1.1.2.2 bouyer } 497 1.1.2.2 bouyer 498 1.1.2.2 bouyer int 499 1.1.2.2 bouyer netbsd32_getdents(p, v, retval) 500 1.1.2.2 bouyer struct proc *p; 501 1.1.2.2 bouyer void *v; 502 1.1.2.2 bouyer register_t *retval; 503 1.1.2.2 bouyer { 504 1.1.2.2 bouyer struct netbsd32_getdents_args /* { 505 1.1.2.2 bouyer syscallarg(int) fd; 506 1.1.2.2 bouyer syscallarg(netbsd32_charp) buf; 507 1.1.2.2 bouyer syscallarg(netbsd32_size_t) count; 508 1.1.2.2 bouyer } */ *uap = v; 509 1.1.2.2 bouyer struct file *fp; 510 1.1.2.2 bouyer int error, done; 511 1.1.2.2 bouyer 512 1.1.2.2 bouyer /* getvnode() will use the descriptor for us */ 513 1.1.2.2 bouyer if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 514 1.1.2.2 bouyer return (error); 515 1.1.2.2 bouyer if ((fp->f_flag & FREAD) == 0) { 516 1.1.2.2 bouyer error = EBADF; 517 1.1.2.2 bouyer goto out; 518 1.1.2.2 bouyer } 519 1.1.2.2 bouyer error = vn_readdir(fp, (caddr_t)(u_long)SCARG(uap, buf), UIO_USERSPACE, 520 1.1.2.2 bouyer SCARG(uap, count), &done, p, 0, 0); 521 1.1.2.2 bouyer *retval = done; 522 1.1.2.2 bouyer out: 523 1.1.2.2 bouyer FILE_UNUSE(fp, p); 524 1.1.2.2 bouyer return (error); 525 1.1.2.2 bouyer } 526 1.1.2.2 bouyer 527 1.1.2.2 bouyer int 528 1.1.2.2 bouyer netbsd32_lutimes(p, v, retval) 529 1.1.2.2 bouyer struct proc *p; 530 1.1.2.2 bouyer void *v; 531 1.1.2.2 bouyer register_t *retval; 532 1.1.2.2 bouyer { 533 1.1.2.2 bouyer struct netbsd32_lutimes_args /* { 534 1.1.2.2 bouyer syscallarg(const netbsd32_charp) path; 535 1.1.2.2 bouyer syscallarg(const netbsd32_timevalp_t) tptr; 536 1.1.2.2 bouyer } */ *uap = v; 537 1.1.2.2 bouyer int error; 538 1.1.2.2 bouyer struct nameidata nd; 539 1.1.2.2 bouyer 540 1.1.2.2 bouyer NDINIT(&nd, LOOKUP, NOFOLLOW, UIO_USERSPACE, (caddr_t)(u_long)SCARG(uap, path), p); 541 1.1.2.2 bouyer if ((error = namei(&nd)) != 0) 542 1.1.2.2 bouyer return (error); 543 1.1.2.2 bouyer 544 1.1.2.2 bouyer error = change_utimes32(nd.ni_vp, SCARG(uap, tptr), p); 545 1.1.2.2 bouyer 546 1.1.2.2 bouyer vrele(nd.ni_vp); 547 1.1.2.2 bouyer return (error); 548 1.1.2.2 bouyer } 549 1.1.2.2 bouyer 550 1.1.2.2 bouyer int 551 1.1.2.2 bouyer netbsd32___stat13(p, v, retval) 552 1.1.2.2 bouyer struct proc *p; 553 1.1.2.2 bouyer void *v; 554 1.1.2.2 bouyer register_t *retval; 555 1.1.2.2 bouyer { 556 1.1.2.2 bouyer struct netbsd32___stat13_args /* { 557 1.1.2.2 bouyer syscallarg(const netbsd32_charp) path; 558 1.1.2.2 bouyer syscallarg(netbsd32_statp_t) ub; 559 1.1.2.2 bouyer } */ *uap = v; 560 1.1.2.2 bouyer struct netbsd32_stat sb32; 561 1.1.2.2 bouyer struct stat sb; 562 1.1.2.2 bouyer int error; 563 1.1.2.2 bouyer struct nameidata nd; 564 1.1.2.2 bouyer caddr_t sg; 565 1.1.2.2 bouyer const char *path; 566 1.1.2.2 bouyer 567 1.1.2.2 bouyer path = (char *)(u_long)SCARG(uap, path); 568 1.1.2.2 bouyer sg = stackgap_init(p->p_emul); 569 1.1.2.2 bouyer CHECK_ALT_EXIST(p, &sg, path); 570 1.1.2.2 bouyer 571 1.1.2.2 bouyer NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, path, p); 572 1.1.2.2 bouyer if ((error = namei(&nd)) != 0) 573 1.1.2.2 bouyer return (error); 574 1.1.2.2 bouyer error = vn_stat(nd.ni_vp, &sb, p); 575 1.1.2.2 bouyer vput(nd.ni_vp); 576 1.1.2.2 bouyer if (error) 577 1.1.2.2 bouyer return (error); 578 1.1.2.2 bouyer netbsd32_from___stat13(&sb, &sb32); 579 1.1.2.2 bouyer error = copyout(&sb32, (caddr_t)(u_long)SCARG(uap, ub), sizeof(sb32)); 580 1.1.2.2 bouyer return (error); 581 1.1.2.2 bouyer } 582 1.1.2.2 bouyer 583 1.1.2.2 bouyer int 584 1.1.2.2 bouyer netbsd32___fstat13(p, v, retval) 585 1.1.2.2 bouyer struct proc *p; 586 1.1.2.2 bouyer void *v; 587 1.1.2.2 bouyer register_t *retval; 588 1.1.2.2 bouyer { 589 1.1.2.2 bouyer struct netbsd32___fstat13_args /* { 590 1.1.2.2 bouyer syscallarg(int) fd; 591 1.1.2.2 bouyer syscallarg(netbsd32_statp_t) sb; 592 1.1.2.2 bouyer } */ *uap = v; 593 1.1.2.2 bouyer int fd = SCARG(uap, fd); 594 1.1.2.2 bouyer struct filedesc *fdp = p->p_fd; 595 1.1.2.2 bouyer struct file *fp; 596 1.1.2.2 bouyer struct netbsd32_stat sb32; 597 1.1.2.2 bouyer struct stat ub; 598 1.1.2.2 bouyer int error = 0; 599 1.1.2.2 bouyer 600 1.1.2.2 bouyer if ((u_int)fd >= fdp->fd_nfiles || 601 1.1.2.2 bouyer (fp = fdp->fd_ofiles[fd]) == NULL) 602 1.1.2.2 bouyer return (EBADF); 603 1.1.2.2 bouyer 604 1.1.2.3 bouyer FILE_USE(fp); 605 1.1.2.3 bouyer error = (*fp->f_ops->fo_stat)(fp, &ub, p); 606 1.1.2.3 bouyer FILE_UNUSE(fp, p); 607 1.1.2.3 bouyer 608 1.1.2.2 bouyer if (error == 0) { 609 1.1.2.2 bouyer netbsd32_from___stat13(&ub, &sb32); 610 1.1.2.2 bouyer error = copyout(&sb32, (caddr_t)(u_long)SCARG(uap, sb), sizeof(sb32)); 611 1.1.2.2 bouyer } 612 1.1.2.2 bouyer return (error); 613 1.1.2.2 bouyer } 614 1.1.2.2 bouyer 615 1.1.2.2 bouyer int 616 1.1.2.2 bouyer netbsd32___lstat13(p, v, retval) 617 1.1.2.2 bouyer struct proc *p; 618 1.1.2.2 bouyer void *v; 619 1.1.2.2 bouyer register_t *retval; 620 1.1.2.2 bouyer { 621 1.1.2.2 bouyer struct netbsd32___lstat13_args /* { 622 1.1.2.2 bouyer syscallarg(const netbsd32_charp) path; 623 1.1.2.2 bouyer syscallarg(netbsd32_statp_t) ub; 624 1.1.2.2 bouyer } */ *uap = v; 625 1.1.2.2 bouyer struct netbsd32_stat sb32; 626 1.1.2.2 bouyer struct stat sb; 627 1.1.2.2 bouyer int error; 628 1.1.2.2 bouyer struct nameidata nd; 629 1.1.2.2 bouyer caddr_t sg; 630 1.1.2.2 bouyer const char *path; 631 1.1.2.2 bouyer 632 1.1.2.2 bouyer path = (char *)(u_long)SCARG(uap, path); 633 1.1.2.2 bouyer sg = stackgap_init(p->p_emul); 634 1.1.2.2 bouyer CHECK_ALT_EXIST(p, &sg, path); 635 1.1.2.2 bouyer 636 1.1.2.2 bouyer NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE, path, p); 637 1.1.2.2 bouyer if ((error = namei(&nd)) != 0) 638 1.1.2.2 bouyer return (error); 639 1.1.2.2 bouyer error = vn_stat(nd.ni_vp, &sb, p); 640 1.1.2.2 bouyer vput(nd.ni_vp); 641 1.1.2.2 bouyer if (error) 642 1.1.2.2 bouyer return (error); 643 1.1.2.2 bouyer netbsd32_from___stat13(&sb, &sb32); 644 1.1.2.2 bouyer error = copyout(&sb32, (caddr_t)(u_long)SCARG(uap, ub), sizeof(sb32)); 645 1.1.2.2 bouyer return (error); 646 1.1.2.2 bouyer } 647 1.1.2.2 bouyer 648 1.1.2.2 bouyer int 649 1.1.2.2 bouyer netbsd32_preadv(p, v, retval) 650 1.1.2.2 bouyer struct proc *p; 651 1.1.2.2 bouyer void *v; 652 1.1.2.2 bouyer register_t *retval; 653 1.1.2.2 bouyer { 654 1.1.2.2 bouyer struct netbsd32_preadv_args /* { 655 1.1.2.2 bouyer syscallarg(int) fd; 656 1.1.2.2 bouyer syscallarg(const netbsd32_iovecp_t) iovp; 657 1.1.2.2 bouyer syscallarg(int) iovcnt; 658 1.1.2.2 bouyer syscallarg(int) pad; 659 1.1.2.2 bouyer syscallarg(off_t) offset; 660 1.1.2.2 bouyer } */ *uap = v; 661 1.1.2.2 bouyer struct filedesc *fdp = p->p_fd; 662 1.1.2.2 bouyer struct file *fp; 663 1.1.2.2 bouyer struct vnode *vp; 664 1.1.2.2 bouyer off_t offset; 665 1.1.2.2 bouyer int error, fd = SCARG(uap, fd); 666 1.1.2.2 bouyer 667 1.1.2.2 bouyer if ((u_int)fd >= fdp->fd_nfiles || 668 1.1.2.2 bouyer (fp = fdp->fd_ofiles[fd]) == NULL || 669 1.1.2.2 bouyer (fp->f_flag & FREAD) == 0) 670 1.1.2.2 bouyer return (EBADF); 671 1.1.2.2 bouyer 672 1.1.2.2 bouyer vp = (struct vnode *)fp->f_data; 673 1.1.2.2 bouyer if (fp->f_type != DTYPE_VNODE 674 1.1.2.2 bouyer || vp->v_type == VFIFO) 675 1.1.2.2 bouyer return (ESPIPE); 676 1.1.2.2 bouyer 677 1.1.2.2 bouyer offset = SCARG(uap, offset); 678 1.1.2.2 bouyer 679 1.1.2.2 bouyer /* 680 1.1.2.2 bouyer * XXX This works because no file systems actually 681 1.1.2.2 bouyer * XXX take any action on the seek operation. 682 1.1.2.2 bouyer */ 683 1.1.2.2 bouyer if ((error = VOP_SEEK(vp, fp->f_offset, offset, fp->f_cred)) != 0) 684 1.1.2.2 bouyer return (error); 685 1.1.2.2 bouyer 686 1.1.2.2 bouyer return (dofilereadv32(p, fd, fp, (struct netbsd32_iovec *)(u_long)SCARG(uap, iovp), SCARG(uap, iovcnt), 687 1.1.2.2 bouyer &offset, 0, retval)); 688 1.1.2.2 bouyer } 689 1.1.2.2 bouyer 690 1.1.2.2 bouyer int 691 1.1.2.2 bouyer netbsd32_pwritev(p, v, retval) 692 1.1.2.2 bouyer struct proc *p; 693 1.1.2.2 bouyer void *v; 694 1.1.2.2 bouyer register_t *retval; 695 1.1.2.2 bouyer { 696 1.1.2.2 bouyer struct netbsd32_pwritev_args /* { 697 1.1.2.2 bouyer syscallarg(int) fd; 698 1.1.2.2 bouyer syscallarg(const netbsd32_iovecp_t) iovp; 699 1.1.2.2 bouyer syscallarg(int) iovcnt; 700 1.1.2.2 bouyer syscallarg(int) pad; 701 1.1.2.2 bouyer syscallarg(off_t) offset; 702 1.1.2.2 bouyer } */ *uap = v; 703 1.1.2.2 bouyer struct filedesc *fdp = p->p_fd; 704 1.1.2.2 bouyer struct file *fp; 705 1.1.2.2 bouyer struct vnode *vp; 706 1.1.2.2 bouyer off_t offset; 707 1.1.2.2 bouyer int error, fd = SCARG(uap, fd); 708 1.1.2.2 bouyer 709 1.1.2.2 bouyer if ((u_int)fd >= fdp->fd_nfiles || 710 1.1.2.2 bouyer (fp = fdp->fd_ofiles[fd]) == NULL || 711 1.1.2.2 bouyer (fp->f_flag & FWRITE) == 0) 712 1.1.2.2 bouyer return (EBADF); 713 1.1.2.2 bouyer 714 1.1.2.2 bouyer vp = (struct vnode *)fp->f_data; 715 1.1.2.2 bouyer if (fp->f_type != DTYPE_VNODE 716 1.1.2.2 bouyer || vp->v_type == VFIFO) 717 1.1.2.2 bouyer return (ESPIPE); 718 1.1.2.2 bouyer 719 1.1.2.2 bouyer offset = SCARG(uap, offset); 720 1.1.2.2 bouyer 721 1.1.2.2 bouyer /* 722 1.1.2.2 bouyer * XXX This works because no file systems actually 723 1.1.2.2 bouyer * XXX take any action on the seek operation. 724 1.1.2.2 bouyer */ 725 1.1.2.2 bouyer if ((error = VOP_SEEK(vp, fp->f_offset, offset, fp->f_cred)) != 0) 726 1.1.2.2 bouyer return (error); 727 1.1.2.2 bouyer 728 1.1.2.2 bouyer return (dofilewritev32(p, fd, fp, (struct netbsd32_iovec *)(u_long)SCARG(uap, iovp), SCARG(uap, iovcnt), 729 1.1.2.2 bouyer &offset, 0, retval)); 730 1.1.2.2 bouyer } 731 1.1.2.2 bouyer 732 1.1.2.2 bouyer /* 733 1.1.2.2 bouyer * Find pathname of process's current directory. 734 1.1.2.2 bouyer * 735 1.1.2.2 bouyer * Use vfs vnode-to-name reverse cache; if that fails, fall back 736 1.1.2.2 bouyer * to reading directory contents. 737 1.1.2.2 bouyer */ 738 1.1.2.2 bouyer int 739 1.1.2.2 bouyer getcwd_common __P((struct vnode *, struct vnode *, 740 1.1.2.2 bouyer char **, char *, int, int, struct proc *)); 741 1.1.2.2 bouyer 742 1.1.2.2 bouyer int netbsd32___getcwd(p, v, retval) 743 1.1.2.2 bouyer struct proc *p; 744 1.1.2.2 bouyer void *v; 745 1.1.2.2 bouyer register_t *retval; 746 1.1.2.2 bouyer { 747 1.1.2.2 bouyer struct netbsd32___getcwd_args /* { 748 1.1.2.2 bouyer syscallarg(char *) bufp; 749 1.1.2.2 bouyer syscallarg(size_t) length; 750 1.1.2.2 bouyer } */ *uap = v; 751 1.1.2.2 bouyer 752 1.1.2.2 bouyer int error; 753 1.1.2.2 bouyer char *path; 754 1.1.2.2 bouyer char *bp, *bend; 755 1.1.2.2 bouyer int len = (int)SCARG(uap, length); 756 1.1.2.2 bouyer int lenused; 757 1.1.2.2 bouyer 758 1.1.2.2 bouyer if (len > MAXPATHLEN*4) 759 1.1.2.2 bouyer len = MAXPATHLEN*4; 760 1.1.2.2 bouyer else if (len < 2) 761 1.1.2.2 bouyer return ERANGE; 762 1.1.2.2 bouyer 763 1.1.2.2 bouyer path = (char *)malloc(len, M_TEMP, M_WAITOK); 764 1.1.2.2 bouyer if (!path) 765 1.1.2.2 bouyer return ENOMEM; 766 1.1.2.2 bouyer 767 1.1.2.2 bouyer bp = &path[len]; 768 1.1.2.2 bouyer bend = bp; 769 1.1.2.2 bouyer *(--bp) = '\0'; 770 1.1.2.2 bouyer 771 1.1.2.2 bouyer /* 772 1.1.2.2 bouyer * 5th argument here is "max number of vnodes to traverse". 773 1.1.2.2 bouyer * Since each entry takes up at least 2 bytes in the output buffer, 774 1.1.2.2 bouyer * limit it to N/2 vnodes for an N byte buffer. 775 1.1.2.2 bouyer */ 776 1.1.2.2 bouyer #define GETCWD_CHECK_ACCESS 0x0001 777 1.1.2.2 bouyer error = getcwd_common (p->p_cwdi->cwdi_cdir, NULL, &bp, path, len/2, 778 1.1.2.2 bouyer GETCWD_CHECK_ACCESS, p); 779 1.1.2.2 bouyer 780 1.1.2.2 bouyer if (error) 781 1.1.2.2 bouyer goto out; 782 1.1.2.2 bouyer lenused = bend - bp; 783 1.1.2.2 bouyer *retval = lenused; 784 1.1.2.2 bouyer /* put the result into user buffer */ 785 1.1.2.2 bouyer error = copyout(bp, (caddr_t)(u_long)SCARG(uap, bufp), lenused); 786 1.1.2.2 bouyer 787 1.1.2.2 bouyer out: 788 1.1.2.2 bouyer free(path, M_TEMP); 789 1.1.2.2 bouyer return error; 790 1.1.2.2 bouyer } 791
Indexes created Sun Sep 28 12:09:53 GMT 2025