fix log buffer splitting

1 files changed, 9 insertions, 5 deletions

diff --git a/main.c b/main.c
index 3fe38bf..b7d660e 100644
--- a/main.c
+++ b/main.c
@@ -73,7 +73,7 @@ netifd_process_log_cb(struct uloop_fd *fd, unsigned int events)
 {
 	struct netifd_process *proc;
 	const char *log_prefix;
-	char *buf, *cur;
+	char *buf, *start, *cur;
 	int maxlen, len, read_len;
 
 	proc = container_of(fd, struct netifd_process, log_uloop);
@@ -100,19 +100,23 @@ retry:
 	proc->log_buf_ofs += len;
 
 	cur = buf;
-	buf = proc->log_buf;
-	while (len > 0 && (cur = memchr(cur, '\n', len))) {
+	start = proc->log_buf;
+	while (len > 0) {
+		cur = memchr(cur, '\n', len);
+		if (!cur)
+			break;
+
 		*cur = 0;
 
 		if (!proc->log_overflow)
 			netifd_log_message(L_NOTICE, "%s (%d): %s\n",
-				log_prefix, proc->uloop.pid, buf);
+				log_prefix, proc->uloop.pid, start);
 		else
 			proc->log_overflow = false;
 
 		cur++;
 		len -= cur - buf;
-		buf = cur;
+		buf = start = cur;
 	}
 
 	if (buf > proc->log_buf && len > 0)