Add MKNOD command support

[deb_libnfs.git] / lib / libnfs.c

diff --git a/lib/libnfs.c b/lib/libnfs.c
index a966b02f272fd62fcec84b4318e7937b2b0fe34a..71c6e9cb1b2ad78b3a3783ff0a962810fafd349d 100644 (file)
--- a/lib/libnfs.c
+++ b/lib/libnfs.c
@@ -1766,6 +1766,109 @@ int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void
 }
 
 
+/*
+ * Async mknod()
+ */
+struct mknod_cb_data {
+       char *path;
+       int mode;
+       int major;
+       int minor;
+};
+
+static void free_mknod_cb_data(void *ptr)
+{
+       struct mknod_cb_data *data = ptr;
+
+       free(data->path);
+       free(data);
+}
+
+static void nfs_mknod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+       MKNOD3res *res;
+       struct nfs_cb_data *data = private_data;
+       struct nfs_context *nfs = data->nfs;
+       char *str = data->continue_data;
+       
+       str = &str[strlen(str) + 1];
+
+       if (status == RPC_STATUS_ERROR) {
+               data->cb(-EFAULT, nfs, command_data, data->private_data);
+               free_nfs_cb_data(data);
+               return;
+       }
+       if (status == RPC_STATUS_CANCEL) {
+               data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+               free_nfs_cb_data(data);
+               return;
+       }
+
+       res = command_data;
+       if (res->status != NFS3_OK) {
+               rpc_set_error(nfs->rpc, "NFS: MKNOD of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
+               data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
+               free_nfs_cb_data(data);
+               return;
+       }
+
+       data->cb(0, nfs, NULL, data->private_data);
+       free_nfs_cb_data(data);
+}
+
+static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+       struct mknod_cb_data *cb_data = data->continue_data;
+       char *str = cb_data->path;
+       
+       str = &str[strlen(str) + 1];
+
+       if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
+               data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+               free_nfs_cb_data(data);
+               return -1;
+       }
+       return 0;
+}
+
+int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
+{
+       char *ptr;
+       struct mknod_cb_data *cb_data;
+
+       cb_data = malloc(sizeof(struct mknod_cb_data));
+       if (cb_data == NULL) {
+               rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
+               return -1;
+       }
+
+       cb_data->path = strdup(path);
+       if (cb_data->path == NULL) {
+               rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
+               free(cb_data);          
+               return -1;
+       }
+
+       ptr = strrchr(cb_data->path, '/');
+       if (ptr == NULL) {
+               rpc_set_error(nfs->rpc, "Invalid path %s", path);
+               return -1;
+       }
+       *ptr = 0;
+
+       cb_data->mode = mode;
+       cb_data->major = major(dev);
+       cb_data->minor = minor(dev);
+
+       /* data->path now points to the parent directory,  and beyond the nul terminateor is the new directory to create */
+       if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
+               rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
+               free_mknod_cb_data(cb_data);
+               return -1;
+       }
+
+       return 0;
+}
 
 /*
  * Async opendir()