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-rw-r--r--src/conntrack/api.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/conntrack/api.c b/src/conntrack/api.c
index 9f14188..2d90818 100644
--- a/src/conntrack/api.c
+++ b/src/conntrack/api.c
@@ -605,8 +605,9 @@ int nfct_catch(struct nfct_handle *h)
* - NFCT_O_LAYER: include layer 3 information in the output, this is
* *only* required by NFCT_O_DEFAULT.
*
- * On error, -1 is returned and errno is set appropiately. Otherwise,
- * 0 is returned.
+ * 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.
*/
int nfct_snprintf(char *buf,
unsigned int size,