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-rw-r--r--src/conntrack/api.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/conntrack/api.c b/src/conntrack/api.c
index ffa5216..78d7d61 100644
--- a/src/conntrack/api.c
+++ b/src/conntrack/api.c
@@ -1099,9 +1099,9 @@ int nfct_catch(struct nfct_handle *h)
* print the message just after you receive the destroy event. If you want
* more accurate timestamping, use NFCT_OF_TIMESTAMP.
*
- * This function returns the size of the information that _would_ have been
- * written to the buffer, even if there was no room for it. Thus, the
- * behaviour is similar to snprintf.
+ * On error, -1 is returned and errno is set appropiately. Otherwise the
+ * size of what _would_ be written is returned, even if the size of the
+ * buffer is insufficient. This behaviour is similar to snprintf.
*/
int nfct_snprintf(char *buf,
unsigned int size,