1 files changed, 26 insertions, 1 deletions
diff --git a/common/readline.c b/common/readline.c
index e75b183f..76ed6926 100644
--- a/common/readline.c
+++ b/common/readline.c
@@ -3,7 +3,7 @@
 #include <stdio.h>
 
 char *read_line(FILE *file) {
-	int length = 0, size = 128;
+	size_t length = 0, size = 128;
 	char *string = malloc(size);
 	if (!string) {
 		return NULL;
@@ -37,3 +37,28 @@ char *read_line(FILE *file) {
 	string[length] = '\0';
 	return string;
 }
+
+char *read_line_buffer(FILE *file, char *string, size_t string_len) {
+	size_t length = 0;
+	if (!string) {
+		return NULL;
+	}
+	while (1) {
+		int c = getc(file);
+		if (c == EOF || c == '\n' || c == '\0') {
+			break;
+		}
+		if (c == '\r') {
+			continue;
+		}
+		string[length++] = c;
+		if (string_len <= length) {
+			return NULL;
+		}
+	}
+	if (length + 1 == string_len) {
+		return NULL;
+	}
+	string[length] = '\0';
+	return string;
+}