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| author | Ted Lemon <source@isc.org> | 1999-05-27 14:01:43 +0000 |
|---|---|---|
| committer | Ted Lemon <source@isc.org> | 1999-05-27 14:01:43 +0000 |
| commit | 7ff63eb044f44ebe41c71bda1cdf8b52cf47bddb (patch) | |
| tree | f523d050dcd806b54baf95220ee3d83af1a22413 /common/dhcp-eval.5 | |
| parent | ba79f3bb4bcb6b55fd2f7cb214aa463185dcd5da (diff) | |
| download | isc-dhcp-7ff63eb044f44ebe41c71bda1cdf8b52cf47bddb.tar.gz | |
Document encode-int
Diffstat (limited to 'common/dhcp-eval.5')
| -rw-r--r-- | common/dhcp-eval.5 | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/common/dhcp-eval.5 b/common/dhcp-eval.5 index 25ba4c55..2f988d4b 100644 --- a/common/dhcp-eval.5 +++ b/common/dhcp-eval.5 @@ -238,9 +238,21 @@ specified as a data expression. .RE .PP .B concat (\fIdata-expr1\fB, \fIdata-expr2\fB)\fR +.RS 0.25i The two expressions are evaluated, and the result of concatenating the results of the two evaluations is returned. If either subexpression -evaluates to null, then the result is also null. +evaluates to null, then the result is the value of the other +expression. If both expressions evaluate to null, then the result is +null. +.RE +.PP +.B encode-int (\fInumeric-expr\fB, \fIwidth\fB)\fR +.RS 0.25i +Numeric-expr is evaluated and encoded as a data string of the +specified width, in network byte order (most significant byte first). +If the numeric expression evaluates to the null value, the result is +also null. + .SH NUMERIC EXPRESSIONS Numeric expressions are expressions that evaluate to an integer. In general, the maximum size of such an integer should not be assumed to @@ -262,8 +274,7 @@ extract an integer of the specified size, the null value is returned. .PP .RS 0.25i Any number between zero and the maximum representable size may be -specified as a numeric expression. Negative numbers are not -currently supported. +specified as a numeric expression. .RE .SH SEE ALSO dhcpd.conf(5), dhcpd.leases(5), dhclient.conf(5), dhcp-eval(5), dhcpd(8), |