diff options
Diffstat (limited to 'pcap_set_tstamp_precision.3pcap.in')
| -rw-r--r-- | pcap_set_tstamp_precision.3pcap.in | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/pcap_set_tstamp_precision.3pcap.in b/pcap_set_tstamp_precision.3pcap.in index 57c4ea301cf3..dc2b4b3d2a5e 100644 --- a/pcap_set_tstamp_precision.3pcap.in +++ b/pcap_set_tstamp_precision.3pcap.in @@ -39,9 +39,9 @@ sets the precision of the time stamp desired for packets captured on the pcap descriptor to the type specified by .IR tstamp_precision . It must be called on a pcap descriptor created by -.B pcap_create() +.B pcap_create(3PCAP) that has not yet been activated by -.BR pcap_activate() . +.BR pcap_activate(3PCAP) . Two time stamp precisions are supported, microseconds and nanoseconds. One can use options .B PCAP_TSTAMP_PRECISION_MICRO and @@ -50,11 +50,16 @@ to request desired precision. By default, time stamps are in microseconds. .SH RETURN VALUE .B pcap_set_tstamp_precision() returns 0 on success if the specified time stamp precision is expected to be -supported by the operating system, +supported by the capture device, .B PCAP_ERROR_TSTAMP_PRECISION_NOTSUP -if operating system does not support requested time stamp precision, +if the capture device does not support the requested time stamp +precision, .B PCAP_ERROR_ACTIVATED if called on a capture handle that has been activated. +.SH BACKWARD COMPATIBILITY +This function became available in libpcap release 1.5.1. In previous +releases, time stamps from a capture device or savefile are always given +in seconds and microseconds. .SH SEE ALSO pcap(3PCAP), pcap_get_tstamp_precision(3PCAP), |