ppp-chat-fn.html

来自「ecos3.0 beta 的官方文档,html格式」· HTML 代码 · 共 248 行

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248 行

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>cyg_ppp_chat()</H1
><DIV
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NAME="AEN13542"
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><H2
>Name</H2
>cyg_ppp_chat&nbsp;--&nbsp;Execute chat script</DIV
><DIV
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><PRE
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>#include &lt;cyg/ppp/ppp.h&gt;
        </PRE
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><P
><CODE
><CODE
CLASS="FUNCDEF"
>cyg_int32 cyg_ppp_chat</CODE
>(const char *devname, const char *script[]);</CODE
></P
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><H2
>Description</H2
><P
>This function implements a subset of the automated conversational
scripting as defined by the <B
CLASS="COMMAND"
>chat</B
> program. The first
argument is the name of the serial device to be used, typically
<TT
CLASS="LITERAL"
>"/dev/ser0"</TT
> or <TT
CLASS="LITERAL"
>"/dev/ser1"</TT
>. The
<CODE
CLASS="PARAMETER"
>script</CODE
> argument is a pointer to a zero
terminated array of strings that comprise the chat script. See <A
HREF="ppp-using.html"
>Chapter 53</A
> for an example script, and <A
HREF="ppp-chat.html"
>Chapter 56</A
> for full detail of the script used.</P
><P
>The return value of this function will be zero if the chat script
fails for any reason, such as an ABORT or a timeout. If the end of the
script is reached, then the return value will be non-zero.</P
><P
>Under normal use this function is called from the PPP subsystem if the
<CODE
CLASS="STRUCTNAME"
>cyg_ppp_options_t</CODE
>
<CODE
CLASS="STRUCTFIELD"
>script</CODE
> field is set to a
non-<TT
CLASS="LITERAL"
>NULL</TT
> value. This function should only be used
directly if the application needs to undertake special processing
between running the chat script, and bringing up the PPP connections.</P
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