diff --git a/src/ckpool.c b/src/ckpool.c
index 3c5529a1..b4828e33 100644
--- a/src/ckpool.c
+++ b/src/ckpool.c
@@ -1013,6 +1013,10 @@ static void parse_config(ckpool_t *ckp)
 	}
 	json_get_string(&ckp->btcaddress, json_conf, "btcaddress");
 	json_get_string(&ckp->btcsig, json_conf, "btcsig");
+	if (ckp->btcsig && strlen(ckp->btcsig) > 38) {
+		LOGWARNING("Signature %s too long, truncating to 38 bytes", ckp->btcsig);
+		ckp->btcsig[38] = '\0';
+	}
 	json_get_int(&ckp->blockpoll, json_conf, "blockpoll");
 	json_get_int(&ckp->update_interval, json_conf, "update_interval");
 	json_get_string(&ckp->serverurl, json_conf, "serverurl");
diff --git a/src/libckpool.c b/src/libckpool.c
index b9d1e4d3..adc46f21 100644
--- a/src/libckpool.c
+++ b/src/libckpool.c
@@ -819,6 +819,7 @@ bool _send_fd(int fd, int sockd, const char *file, const char *func, const int l
 	struct msghdr msg;
 	char buf[2];
 	bool ret;
+	int *cm;
 
 	memset(&msg, 0, sizeof(struct msghdr));
 	iov[0].iov_base = buf;
@@ -832,7 +833,8 @@ bool _send_fd(int fd, int sockd, const char *file, const char *func, const int l
 	cmptr->cmsg_level = SOL_SOCKET;
 	cmptr->cmsg_type = SCM_RIGHTS;
 	cmptr->cmsg_len = CONTROLLLEN;
-	*(int *)CMSG_DATA(cmptr) = fd;
+	cm = (int *)CMSG_DATA(cmptr);
+	*cm = fd;
 	buf[1] = 0;
 	buf[0] = 0;
 	ret = send_unix_data(sockd, &msg);
@@ -850,6 +852,7 @@ int _get_fd(int sockd, const char *file, const char *func, const int line)
 	struct iovec iov[1];
 	struct msghdr msg;
 	struct cmsghdr *cmptr = ckzalloc(CONTROLLLEN);
+	int *cm;
 
 	memset(&msg, 0, sizeof(struct msghdr));
 	iov[0].iov_base = buf;
@@ -865,7 +868,8 @@ int _get_fd(int sockd, const char *file, const char *func, const int line)
 	}
 out:
 	close(sockd);
-	newfd = *(int *)CMSG_DATA(cmptr);
+	cm = (int *)CMSG_DATA(cmptr);
+	newfd = *cm;
 	free(cmptr);
 	return newfd;
 }