Corrected several format-string errors through the code

- Functions that expect a printf-style format string are now marked as
  such, so that gcc/clang will emit a warning warn you if you mismatch
  format string and arguments.

Signed-off-by: Haru <haru@dotalux.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/common/strlib.h b/src/common/strlib.h
index 7f84d2893..00a588772 100644
--- a/src/common/strlib.h
+++ b/src/common/strlib.h
@@ -82,7 +82,7 @@ struct strlib_interface {
 	/// Works like snprintf, but always null-terminates the buffer.
 	/// Returns the size of the string (without null-terminator)
 	/// or -1 if the buffer is too small.
-	int (*safesnprintf) (char* buf, size_t sz, const char* fmt, ...);
+	int (*safesnprintf) (char *buf, size_t sz, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
 	
 	/// Returns the line of the target position in the string.
 	/// Lines start at 1.
@@ -99,7 +99,7 @@ struct strlib_interface *strlib;
 struct stringbuf_interface {
 	StringBuf* (*Malloc) (void);
 	void (*Init) (StringBuf* self);
-	int (*Printf) (StringBuf* self, const char* fmt, ...);
+	int (*Printf) (StringBuf *self, const char *fmt, ...) __attribute__((format(printf, 2, 3)));
 	int (*Vprintf) (StringBuf* self, const char* fmt, va_list args);
 	int (*Append) (StringBuf* self, const StringBuf *sbuf);
 	int (*AppendStr) (StringBuf* self, const char* str);