From f79065957e81d8d297cf5a4f1019d698de3b8137 Mon Sep 17 00:00:00 2001
From: verdant <im@verdant.ee>
Date: Thu, 6 Aug 2026 14:53:06 +0800
Subject: utils: implement xsnprintf function

Check the return value of (v)snprintf
---
 src/utils.c | 17 +++++++++++++++++
 src/utils.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/src/utils.c b/src/utils.c
index c00c3f9..7a762f7 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -1,4 +1,5 @@
 #include "utils.h"
+#include "err.h"
 #include "fm.h"
 #include "log.h"
 #include <limits.h>
@@ -61,3 +62,19 @@ y_or_n(const char *prompt)
 
 	return ch == 'y';
 }
+
+int
+xsnprintf(char *str, size_t size, const char *restrict format, ...)
+{
+	va_list ap;
+	va_start(ap, format);
+
+	size_t len = vsnprintf(str, size, format, ap);
+	if (len >= size) {
+		die("Length of items error");
+	}
+
+	va_end(ap);
+
+	return SF_OK;
+}
diff --git a/src/utils.h b/src/utils.h
index 7c73fc8..c539ad9 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -7,5 +7,6 @@
 
 int get_input(const char *prompt, char *buf, size_t len);
 bool y_or_n(const char *prompt);
+int xsnprintf(char *str, size_t size, const char *restrict format, ...);
 
 #endif /* SF_UTILS_H */
-- 
cgit v1.2.3