X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Fusterr.h;h=067866ab23c0117086f52ad334da9cb1c6b25148;hb=d6322067aa791234d0d81e1a6b03b445635d5f65;hp=75d507ac10825825ec931a00f561d625192d1690;hpb=106e716d77762f0d27456e276be8c3df8e129eae;p=ust.git

diff --git a/include/usterr.h b/include/usterr.h
index 75d507a..067866a 100644
--- a/include/usterr.h
+++ b/include/usterr.h
@@ -23,6 +23,8 @@
  * signal handlers, so we must use a print method which is signal safe.
  */
 
+extern int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...);
+
 #define sigsafe_print_err(fmt, args...) \
 { \
 	/* Can't use dynamic allocation. Limit ourselves to 250 chars. */ \
@@ -32,7 +34,7 @@
 	/* Save the errno. */ \
 	____saved_errno = errno; \
 \
-	snprintf(____buf, sizeof(____buf), fmt, ## args); \
+	ust_safe_snprintf(____buf, sizeof(____buf), fmt, ## args); \
 \
 	/* Add end of string in case of buffer overflow. */ \
 	____buf[sizeof(____buf)-1] = 0; \
@@ -78,5 +80,6 @@
 
 #define BUG_ON(condition) do { if (unlikely(condition)) ERR("condition not respected (BUG)"); } while(0)
 #define WARN_ON(condition) do { if (unlikely(condition)) WARN("condition not respected on line %s:%d", __FILE__, __LINE__); } while(0)
+#define WARN_ON_ONCE(condition) WARN_ON(condition)
 
 #endif /* USTERR_H */