logv: replace "\n" with line break in the log

Fix #4912
ElementsProject · Jan 25, 2024 · b462dde · b462dde
1 parent d9a747e
commit b462dde
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/lightningd/log.c b/lightningd/log.c
@@ -560,6 +560,19 @@ void logv(struct logger *log, enum log_level level,
 		if (l->log[i] < ' ' || l->log[i] >= 0x7f)
 			l->log[i] = '?';
 
+	/* Replace "\n" with line breaks in the log, if they exist. */
+	char *write_ptr = l->log;
+	for (size_t i=0; i<log_len; i++) {
+		if (l->log[i] == '\\' && i < log_len-1 && l->log[i+1] == 'n') {
+			*write_ptr = '\n';
+			i++;
+		} else {
+			*write_ptr = l->log[i];
+		}
+		write_ptr++;
+	}
+	*write_ptr = 0x00;
+
 	maybe_print(log, l);
 
 	add_entry(log, &l);