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-rw-r--r--xorg-server/include/Xprintf.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/xorg-server/include/Xprintf.h b/xorg-server/include/Xprintf.h
index 414fd46fb..9e8cdc5dc 100644
--- a/xorg-server/include/Xprintf.h
+++ b/xorg-server/include/Xprintf.h
@@ -66,4 +66,16 @@ _X_ATTRIBUTE_PRINTF(2, 0);
#define vasprintf Xvasprintf
#endif
+/*
+ * These functions provide a portable implementation of the linux kernel
+ * scnprintf & vscnprintf routines that return the number of bytes actually
+ * copied during a snprintf, (excluding the final '\0').
+ */
+extern _X_EXPORT int
+Xscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, ...)
+_X_ATTRIBUTE_PRINTF(3,4);
+extern _X_EXPORT int
+Xvscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, va_list va)
+_X_ATTRIBUTE_PRINTF(3,0);
+
#endif /* XPRINTF_H */