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Interpret the \i and \x escape sequences to insert the IP of the

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requesting host
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hpa 2001-11-16 23:38:29 +00:00
parent fc1a21c942
commit 57044bc5df
5 changed files with 108 additions and 26 deletions
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36
tftpd/tftpd.8
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@ -177,12 +177,7 @@ Replace the substring matched by
.I regex
by the
.IR "replacement pattern" .
The escape sequence
\\0
can be used to copy the entire matched string, and the sequences
\\1 to \\9
copies parenthesized subexpressions. To specify a backslash, white
space or hash mark, you need to \\-escape it.
The replacement pattern may contain escape sequences; see below.
.TP
.B g
Repeat this rule until it no longer matches. This is always used with
@ -210,6 +205,35 @@ This rule applies to GET (RRQ) requests only.
.B P
This rule applies to PUT (WRQ) requests only.
.PP
The following escape sequences are recognized as part of the
.IR "replacement pattern" :
.TP
\fB\\0\fP
The entire string matched by the
.IR regex .
.TP
\fB\\1\fP to \fB\\9\fP
Match the first nine parentensized subexpressions, \\( ... \\) of the
.I regex
pattern.
.TP
\fB\\i\fP
The IP address of the requesting host, in dotted-quad notation
(e.g. 192.0.2.169).
.TP
\fB\\x\fP
The IP address of the requesting host, in hexadecimal notation
(e.g. C00002A9).
.TP
\fB\\\fP
Literal backslash.
.TP
\fB\\\fP\fIwhitespace\fP
Literal whitespace.
.TP
\fB\\#\fI
Literal hash mark.
.PP
If the mapping file is changed, you need to send
.B SIGHUP
to any outstanding