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comparison vendor/golang.org/x/sys/unix/xattr_bsd.go @ 68:4b79810863f6 draft

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Ready to release 0.6.0 Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>
author yakumo.izuru
date Wed, 13 Sep 2023 10:49:50 +0000
parents 787b5ee0289d
children
comparison
equal deleted inserted replaced
67:4edfa07d5fe0 68:4b79810863f6
158 err = ExtattrDeleteLink(link, nsid, a) 158 err = ExtattrDeleteLink(link, nsid, a)
159 return 159 return
160 } 160 }
161 161
162 func Listxattr(file string, dest []byte) (sz int, err error) { 162 func Listxattr(file string, dest []byte) (sz int, err error) {
163 d := initxattrdest(dest, 0)
164 destsiz := len(dest) 163 destsiz := len(dest)
165 164
166 // FreeBSD won't allow you to list xattrs from multiple namespaces 165 // FreeBSD won't allow you to list xattrs from multiple namespaces
167 s := 0 166 s, pos := 0, 0
168 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { 167 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
169 stmp, e := ExtattrListFile(file, nsid, uintptr(d), destsiz) 168 stmp, e := ListxattrNS(file, nsid, dest[pos:])
170 169
171 /* Errors accessing system attrs are ignored so that 170 /* Errors accessing system attrs are ignored so that
172 * we can implement the Linux-like behavior of omitting errors that 171 * we can implement the Linux-like behavior of omitting errors that
173 * we don't have read permissions on 172 * we don't have read permissions on
174 * 173 *
175 * Linux will still error if we ask for user attributes on a file that 174 * Linux will still error if we ask for user attributes on a file that
176 * we don't have read permissions on, so don't ignore those errors 175 * we don't have read permissions on, so don't ignore those errors
177 */ 176 */
178 if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { 177 if e != nil {
179 continue 178 if e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
180 } else if e != nil { 179 continue
180 }
181 return s, e 181 return s, e
182 } 182 }
183 183
184 s += stmp 184 s += stmp
185 destsiz -= s 185 pos = s
186 if destsiz < 0 { 186 if pos > destsiz {
187 destsiz = 0 187 pos = destsiz
188 } 188 }
189 d = initxattrdest(dest, s) 189 }
190
191 return s, nil
192 }
193
194 func ListxattrNS(file string, nsid int, dest []byte) (sz int, err error) {
195 d := initxattrdest(dest, 0)
196 destsiz := len(dest)
197
198 s, e := ExtattrListFile(file, nsid, uintptr(d), destsiz)
199 if e != nil {
200 return 0, err
190 } 201 }
191 202
192 return s, nil 203 return s, nil
193 } 204 }
194 205
195 func Flistxattr(fd int, dest []byte) (sz int, err error) { 206 func Flistxattr(fd int, dest []byte) (sz int, err error) {
196 d := initxattrdest(dest, 0) 207 destsiz := len(dest)
197 destsiz := len(dest) 208
198 209 s, pos := 0, 0
199 s := 0
200 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { 210 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
201 stmp, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz) 211 stmp, e := FlistxattrNS(fd, nsid, dest[pos:])
202 if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { 212
203 continue 213 if e != nil {
204 } else if e != nil { 214 if e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
215 continue
216 }
205 return s, e 217 return s, e
206 } 218 }
207 219
208 s += stmp 220 s += stmp
209 destsiz -= s 221 pos = s
210 if destsiz < 0 { 222 if pos > destsiz {
211 destsiz = 0 223 pos = destsiz
212 } 224 }
213 d = initxattrdest(dest, s) 225 }
226
227 return s, nil
228 }
229
230 func FlistxattrNS(fd int, nsid int, dest []byte) (sz int, err error) {
231 d := initxattrdest(dest, 0)
232 destsiz := len(dest)
233
234 s, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz)
235 if e != nil {
236 return 0, err
214 } 237 }
215 238
216 return s, nil 239 return s, nil
217 } 240 }
218 241
219 func Llistxattr(link string, dest []byte) (sz int, err error) { 242 func Llistxattr(link string, dest []byte) (sz int, err error) {
220 d := initxattrdest(dest, 0) 243 destsiz := len(dest)
221 destsiz := len(dest) 244
222 245 s, pos := 0, 0
223 s := 0
224 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { 246 for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} {
225 stmp, e := ExtattrListLink(link, nsid, uintptr(d), destsiz) 247 stmp, e := LlistxattrNS(link, nsid, dest[pos:])
226 if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { 248
227 continue 249 if e != nil {
228 } else if e != nil { 250 if e == EPERM && nsid != EXTATTR_NAMESPACE_USER {
251 continue
252 }
229 return s, e 253 return s, e
230 } 254 }
231 255
232 s += stmp 256 s += stmp
233 destsiz -= s 257 pos = s
234 if destsiz < 0 { 258 if pos > destsiz {
235 destsiz = 0 259 pos = destsiz
236 } 260 }
237 d = initxattrdest(dest, s) 261 }
238 } 262
239 263 return s, nil
240 return s, nil 264 }
241 } 265
266 func LlistxattrNS(link string, nsid int, dest []byte) (sz int, err error) {
267 d := initxattrdest(dest, 0)
268 destsiz := len(dest)
269
270 s, e := ExtattrListLink(link, nsid, uintptr(d), destsiz)
271 if e != nil {
272 return 0, err
273 }
274
275 return s, nil
276 }