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-rw-r--r--mount.c71
1 files changed, 0 insertions, 71 deletions
diff --git a/mount.c b/mount.c
index 3c1568aad..4b0901f2a 100644
--- a/mount.c
+++ b/mount.c
@@ -51,8 +51,6 @@
51#include <sys/ioctl.h> 51#include <sys/ioctl.h>
52#include <linux/loop.h> 52#include <linux/loop.h>
53 53
54static int set_loop(const char *device, const char *file, int offset, int *loopro);
55static char *find_unused_loop_device (void);
56 54
57static int use_loop = 0; 55static int use_loop = 0;
58#endif 56#endif
@@ -177,75 +175,6 @@ extern void whine_if_fstab_is_missing()
177#endif 175#endif
178 176
179 177
180#if defined BB_FEATURE_MOUNT_LOOP
181static int set_loop(const char *device, const char *file, int offset, int *loopro)
182{
183 struct loop_info loopinfo;
184 int fd, ffd, mode;
185
186 mode = *loopro ? O_RDONLY : O_RDWR;
187 if ((ffd = open (file, mode)) < 0 && !*loopro
188 && (errno != EROFS || (ffd = open (file, mode = O_RDONLY)) < 0)) {
189 perror (file);
190 return 1;
191 }
192 if ((fd = open (device, mode)) < 0) {
193 close(ffd);
194 perror (device);
195 return 1;
196 }
197 *loopro = (mode == O_RDONLY);
198
199 memset(&loopinfo, 0, sizeof(loopinfo));
200 strncpy(loopinfo.lo_name, file, LO_NAME_SIZE);
201 loopinfo.lo_name[LO_NAME_SIZE-1] = 0;
202
203 loopinfo.lo_offset = offset;
204
205 loopinfo.lo_encrypt_key_size = 0;
206 if (ioctl(fd, LOOP_SET_FD, ffd) < 0) {
207 perror("ioctl: LOOP_SET_FD");
208 close(fd);
209 close(ffd);
210 return 1;
211 }
212 if (ioctl(fd, LOOP_SET_STATUS, &loopinfo) < 0) {
213 (void) ioctl(fd, LOOP_CLR_FD, 0);
214 perror("ioctl: LOOP_SET_STATUS");
215 close(fd);
216 close(ffd);
217 return 1;
218 }
219 close(fd);
220 close(ffd);
221 return 0;
222}
223
224char *find_unused_loop_device (void)
225{
226 char dev[20];
227 int i, fd;
228 struct stat statbuf;
229 struct loop_info loopinfo;
230
231 for(i = 0; i <= 7; i++) {
232 sprintf(dev, "/dev/loop%d", i);
233 if (stat (dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) {
234 if ((fd = open (dev, O_RDONLY)) >= 0) {
235 if(ioctl (fd, LOOP_GET_STATUS, &loopinfo) == -1) {
236 if (errno == ENXIO) { /* probably free */
237 close (fd);
238 return strdup(dev);
239 }
240 }
241 close (fd);
242 }
243 }
244 }
245 return NULL;
246}
247#endif /* BB_FEATURE_MOUNT_LOOP */
248
249/* Seperate standard mount options from the nonstandard string options */ 178/* Seperate standard mount options from the nonstandard string options */
250static void 179static void
251parse_mount_options ( char *options, unsigned long *flags, char *strflags) 180parse_mount_options ( char *options, unsigned long *flags, char *strflags)