linux32_stat.c revision 1.1.10.2
1 /* $NetBSD: linux32_stat.c,v 1.1.10.2 2006/04/22 11:38:14 simonb Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_stat.c,v 1.1.10.2 2006/04/22 11:38:14 simonb Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kernel.h> 44 #include <sys/fcntl.h> 45 #include <sys/select.h> 46 #include <sys/sa.h> 47 #include <sys/proc.h> 48 #include <sys/ucred.h> 49 #include <sys/swap.h> 50 51 #include <machine/types.h> 52 53 #include <sys/syscallargs.h> 54 55 #include <compat/netbsd32/netbsd32.h> 56 #include <compat/netbsd32/netbsd32_conv.h> 57 #include <compat/netbsd32/netbsd32_syscallargs.h> 58 59 #include <compat/linux/common/linux_types.h> 60 #include <compat/linux/common/linux_signal.h> 61 #include <compat/linux/common/linux_machdep.h> 62 #include <compat/linux/common/linux_misc.h> 63 #include <compat/linux/common/linux_oldolduname.h> 64 #include <compat/linux/linux_syscallargs.h> 65 66 #include <compat/linux32/common/linux32_types.h> 67 #include <compat/linux32/common/linux32_signal.h> 68 #include <compat/linux32/common/linux32_machdep.h> 69 #include <compat/linux32/common/linux32_sysctl.h> 70 #include <compat/linux32/common/linux32_socketcall.h> 71 #include <compat/linux32/linux32_syscallargs.h> 72 73 static inline void linux32_from_stat(struct stat *, struct linux32_stat64 *); 74 75 #define linux_fakedev(x,y) (x) 76 static inline void 77 linux32_from_stat(st, st32) 78 struct stat *st; 79 struct linux32_stat64 *st32; 80 { 81 bzero(st32, sizeof(*st32)); 82 st32->lst_dev = linux_fakedev(st->st_dev, 0); 83 st32->__lst_ino = st->st_ino; 84 st32->lst_mode = st->st_mode; 85 if (st->st_nlink >= (1 << 15)) 86 st32->lst_nlink = (1 << 15) - 1; 87 else 88 st32->lst_nlink = st->st_nlink; 89 st32->lst_uid = st->st_uid; 90 st32->lst_gid = st->st_gid; 91 st32->lst_rdev = linux_fakedev(st->st_rdev, 0); 92 st32->lst_size = st->st_size; 93 st32->lst_blksize = st->st_blksize; 94 st32->lst_blocks = st->st_blocks; 95 st32->lst_atime = st->st_atime; 96 st32->lst_mtime = st->st_mtime; 97 st32->lst_ctime = st->st_ctime; 98 #ifdef LINUX32_STAT64_HAS_NSEC 99 st32->lst_atime_nsec = st->st_atimensec; 100 st32->lst_mtime_nsec = st->st_mtimensec; 101 st32->lst_ctime_nsec = st->st_ctimensec; 102 #endif 103 #ifdef LINUX32_STAT64_HAS_BROKEN_ST_INO 104 st32->lst_ino = st->st_ino; 105 #endif 106 107 return; 108 } 109 110 int 111 linux32_sys_stat64(l, v, retval) 112 struct lwp *l; 113 void *v; 114 register_t *retval; 115 { 116 struct linux32_sys_stat64_args /* { 117 syscallarg(netbsd32_charp) path; 118 syscallarg(linux32_statp) sp; 119 } */ *uap = v; 120 struct sys___stat30_args ua; 121 caddr_t sg = stackgap_init(l->l_proc, 0); 122 int error; 123 struct stat st; 124 struct linux32_stat64 st32; 125 struct stat *stp; 126 struct linux32_stat64 *st32p; 127 128 NETBSD32TOP_UAP(path, const char); 129 130 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 131 132 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 133 SCARG(&ua, ub) = stp; 134 135 if ((error = sys___stat30(l, &ua, retval)) != 0) 136 return error; 137 138 if ((error = copyin(stp, &st, sizeof(st))) != 0) 139 return error; 140 141 linux32_from_stat(&st, &st32); 142 143 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 144 145 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 146 return error; 147 148 return 0; 149 } 150 151 int 152 linux32_sys_lstat64(l, v, retval) 153 struct lwp *l; 154 void *v; 155 register_t *retval; 156 { 157 struct linux32_sys_lstat64_args /* { 158 syscallarg(netbsd32_charp) path; 159 syscallarg(linux32_stat64p) sp; 160 } */ *uap = v; 161 struct sys___lstat30_args ua; 162 caddr_t sg = stackgap_init(l->l_proc, 0); 163 int error; 164 struct stat st; 165 struct linux32_stat64 st32; 166 struct stat *stp; 167 struct linux32_stat64 *st32p; 168 169 NETBSD32TOP_UAP(path, const char); 170 171 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 172 173 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 174 SCARG(&ua, ub) = stp; 175 176 if ((error = sys___lstat30(l, &ua, retval)) != 0) 177 return error; 178 179 if ((error = copyin(stp, &st, sizeof(st))) != 0) 180 return error; 181 182 linux32_from_stat(&st, &st32); 183 184 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 185 186 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 187 return error; 188 189 return 0; 190 } 191 192 int 193 linux32_sys_fstat64(l, v, retval) 194 struct lwp *l; 195 void *v; 196 register_t *retval; 197 { 198 struct linux32_sys_fstat64_args /* { 199 syscallarg(int) fd; 200 syscallarg(linux32_stat64p) sp; 201 } */ *uap = v; 202 struct sys___fstat30_args ua; 203 caddr_t sg = stackgap_init(l->l_proc, 0); 204 int error; 205 struct stat st; 206 struct linux32_stat64 st32; 207 struct stat *stp; 208 struct linux32_stat64 *st32p; 209 210 NETBSD32TO64_UAP(fd); 211 212 stp = stackgap_alloc(l->l_proc, &sg, sizeof(*stp)); 213 SCARG(&ua, sb) = stp; 214 215 if ((error = sys___fstat30(l, &ua, retval)) != 0) 216 return error; 217 218 if ((error = copyin(stp, &st, sizeof(st))) != 0) 219 return error; 220 221 linux32_from_stat(&st, &st32); 222 223 st32p = (struct linux32_stat64 *)(long)SCARG(uap, sp); 224 225 if ((error = copyout(&st32, st32p, sizeof(*st32p))) != 0) 226 return error; 227 228 return 0; 229 } 230
Indexes created Sun Oct 12 22:09:51 GMT 2025