1 files changed, 5 insertions, 0 deletions
diff --git a/src/common/strlib.h b/src/common/strlib.h
index 4df5a51d2..31e364e2a 100644
--- a/src/common/strlib.h
+++ b/src/common/strlib.h
@@ -37,6 +37,11 @@ char* safestrncpy(char* dst, const char* src, size_t n);
 /// doesn't crash on null pointer
 size_t safestrnlen(const char* string, size_t maxlen);
 
+/// Works like snprintf, but always nul-terminates the buffer.
+/// Returns the size of the string (without nul-terminator)
+/// or -1 if the buffer is too small.
+int safesnprintf(char* buf, size_t sz, const char* fmt, ...);
+
 /// Returns the line of the target position in the string.
 /// Lines start at 1.
 int strline(const char* str, size_t pos);