183 if (result >= 0) {
184 *pbytes = n;
185 return 1;
186 }
187 } else if (S_ISREG(mode)) {
188 size = buf64.st_size;
189 }
190 }
191
192 if ((current = lseek64(fd, 0, SEEK_CUR)) == -1) {
193 return 0;
194 }
195
196 if (size < current) {
197 if ((size = lseek64(fd, 0, SEEK_END)) == -1)
198 return 0;
199 else if (lseek64(fd, current, SEEK_SET) == -1)
200 return 0;
201 }
202
203 if (size >= current) {
204 *pbytes = size - current;
205 return 1;
206 } else {
207 return 0;
208 }
209 }
210
211 jint
212 handleSetLength(FD fd, jlong length)
213 {
214 int result;
215 RESTARTABLE(ftruncate64(fd, length), result);
216 return result;
217 }
218
219 size_t
220 getLastErrorString(char *buf, size_t len)
221 {
222 if (errno == 0 || len < 1) return 0;
223
224 const char *err = strerror(errno);
225 size_t n = strlen(err);
226 if (n >= len)
227 n = len - 1;
228
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183 if (result >= 0) {
184 *pbytes = n;
185 return 1;
186 }
187 } else if (S_ISREG(mode)) {
188 size = buf64.st_size;
189 }
190 }
191
192 if ((current = lseek64(fd, 0, SEEK_CUR)) == -1) {
193 return 0;
194 }
195
196 if (size < current) {
197 if ((size = lseek64(fd, 0, SEEK_END)) == -1)
198 return 0;
199 else if (lseek64(fd, current, SEEK_SET) == -1)
200 return 0;
201 }
202
203 *pbytes = size - current;
204 return 1;
205 }
206
207 jint
208 handleSetLength(FD fd, jlong length)
209 {
210 int result;
211 RESTARTABLE(ftruncate64(fd, length), result);
212 return result;
213 }
214
215 size_t
216 getLastErrorString(char *buf, size_t len)
217 {
218 if (errno == 0 || len < 1) return 0;
219
220 const char *err = strerror(errno);
221 size_t n = strlen(err);
222 if (n >= len)
223 n = len - 1;
224
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