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-rw-r--r--toys/other/losetup.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/toys/other/losetup.c b/toys/other/losetup.c
index 4e467a9c..e8f02aa9 100644
--- a/toys/other/losetup.c
+++ b/toys/other/losetup.c
@@ -45,16 +45,6 @@ GLOBALS(
ino_t jino;
)
-/*
-todo: basic /dev file association
- associate DEV FILE
- #-a
- cdfjosS
- allocate new loop device:
- /dev/loop-control
- https://lkml.org/lkml/2011/7/26/148
-*/
-
// -f: *device is NULL
// Perform requested operation on one device. Returns 1 if handled, 0 if error
@@ -75,8 +65,11 @@ static void loopback_setup(char *device, char *file)
// mount -o loop depends on found device being at the start of toybuf.
if (cfd != -1) {
- if (0 <= (i = ioctl(cfd, 0x4C82))) // LOOP_CTL_GET_FREE
+ if (0 <= (i = ioctl(cfd, 0x4C82))) { // LOOP_CTL_GET_FREE
sprintf(device = toybuf, "/dev/loop%d", i);
+ // Fallback for Android
+ if (access(toybuf, F_OK)) sprintf(toybuf, "/dev/block/loop%d", i);
+ }
close(cfd);
}
}
@@ -119,8 +112,8 @@ static void loopback_setup(char *device, char *file)
free(s);
} else if (flags & FLAG_f) printf("%s", device);
else {
- xprintf("%s: [%04llx]:%llu (%s)", device, loop->lo_device, loop->lo_inode,
- loop->lo_file_name);
+ xprintf("%s: [%04llx]:%llu (%s)", device, (long long)loop->lo_device,
+ (long long)loop->lo_inode, loop->lo_file_name);
if (loop->lo_offset) xprintf(", offset %llu", loop->lo_offset);
if (loop->lo_sizelimit) xprintf(", sizelimit %llu", loop->lo_sizelimit);
xputc('\n');
@@ -137,7 +130,7 @@ static int dash_a(struct dirtree *node)
char *s = node->name;
// Initial /dev node needs to recurse down one level, then only loop[0-9]*
- if (*s == '/') return DIRTREE_RECURSE;
+ if (!node->parent) return DIRTREE_RECURSE;
if (strncmp(s, "loop", 4) || !isdigit(s[4])) return 0;
s = dirtree_path(node, 0);