wimlib_mount(): Refuse to mount split wim read-write

[wimlib] / src / mount.c

diff --git a/src/mount.c b/src/mount.c
index 44857c8c8783972efd1de4f7626fe239504e021f..4dc28f1fbc2c8fee36904530dff7c565b44c5d81 100644 (file)
--- a/src/mount.c
+++ b/src/mount.c
@@ -1854,6 +1854,11 @@ WIMLIBAPI int wimlib_mount(WIMStruct *wim, int image, const char *dir,
        if (ret != 0)
                return ret;
 
+       if ((flags & WIMLIB_MOUNT_FLAG_READWRITE) && (wim->hdr.total_parts != 1)) {
+               ERROR("Cannot mount a split WIM read-write");
+               return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+       }
+
        if (num_additional_swms) {
                ret = new_joined_lookup_table(wim, additional_swms,
                                              num_additional_swms,