diff options
| -rw-r--r-- | src/callback.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/callback.c b/src/callback.c index 4a73857..ded22aa 100644 --- a/src/callback.c +++ b/src/callback.c @@ -64,7 +64,10 @@ static mnl_cb_t default_cb_array[NLMSG_MIN_TYPE] = { * - MNL_CB_STOP (=0): stop callback runqueue. * - MNL_CB_OK (>=1): no problems has occurred. * - * This function propagates the callback return value. + * This function propagates the callback return value. On error, it returns + * -1 and errno is explicitly set. If the portID is not the expected, errno + * is set to ESRCH. If the sequence number is not the expected, errno is set + * to EPROTO. */ int mnl_cb_run2(const char *buf, size_t numbytes, unsigned int seq, unsigned int portid, mnl_cb_t cb_data, void *data, @@ -76,12 +79,12 @@ int mnl_cb_run2(const char *buf, size_t numbytes, unsigned int seq, while (mnl_nlmsg_ok(nlh, len)) { /* check message source */ if (!mnl_nlmsg_portid_ok(nlh, portid)) { - errno = EINVAL; + errno = ESRCH; return -1; } /* perform sequence tracking */ if (!mnl_nlmsg_seq_ok(nlh, seq)) { - errno = EILSEQ; + errno = EPROTO; return -1; } |