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platform_system_core
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Open file and loop device with O_RDONLY when -o loop,ro. 

Otherwise: ioctl LOOP_SET_FD failed: Bad file number.
This commit is contained in:
Jay Freeman (saurik) 2008-11-16 13:25:10 +00:00
parent abb9638e36
commit bc7b0cbe15
1 changed files with 5 additions and 2 deletions
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7
toolbox/mount.c
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@ -138,14 +138,17 @@ do_mount(char *dev, char *dir, char *type, unsigned long rwflag, void *data, int
if (loop) {
int file_fd, device_fd;
int flags;
flags = (rwflag & MS_RDONLY) ? O_RDONLY : O_RDWR;
// FIXME - only one loop mount supported at a time
file_fd = open(dev, O_RDWR);
file_fd = open(dev, flags);
if (file_fd < -1) {
perror("open backing file failed");
return 1;
}
device_fd = open(LOOP_DEVICE, O_RDWR);
device_fd = open(LOOP_DEVICE, flags);
if (device_fd < -1) {
perror("open loop device failed");
close(file_fd);