now.3

linux下qmail的源码 本人加了一些注释

.TH now 3
.SH NAME
now \- get current time, in seconds
.SH SYNTAX
.B #include <now.h>

datetime_sec \fBnow\fP();
.SH DESCRIPTION
.B now
returns the number of real-time seconds that have elapsed
since the end of 1969 TAI.
.SH "SEE ALSO"
datetime(3),
time(3)