mirror of
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80 lines
3.0 KiB
Groff
80 lines
3.0 KiB
Groff
.\" You can view this file with:
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.\" nroff -man [file]
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.\" Written by daniel@haxx.se
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.\"
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.TH curl_formparse 3 "23 April 2001" "libcurl 7.7.2" "libcurl Manual"
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.SH NAME
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curl_formparse - add a section to a multipart/formdata HTTP POST
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.SH SYNOPSIS
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.B #include <curl/curl.h>
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.sp
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.BI "CURLcode curl_formparse(char * " string, " struct HttpPost ** " firstitem,
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.BI "struct HttpPost ** " lastitem ");"
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.ad
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.SH DESCRIPTION
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curl_formparse() is used to append sections when building a multipart/formdata
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HTTP POST (sometimes refered to as rfc1867-style posts). Append one section at
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a time until you've added all the sections you want included and then you pass
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the \fI firstitem\fP pointer as parameter to \fBCURLOPT_HTTPPOST\fP.
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\fIlastitem\fP is set after each call and on repeated invokes it should be
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left as set to allow repeated invokes to find the end of the list in a faster
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way. \fIstring\fP must be a zero terminated string following the following
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syntax.
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The pointers \fIfirstitem\fP and \fIlastitem\fP point to, should both be
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pointers to NULL in the first call to this function. All list-data will be
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allocated by the function itself. You must call \fIcurl_formfree\fP after the
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form has been done to free the resources again.
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See example below.
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.SH "FORM PARSE STRINGS"
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The
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.I string
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parameter must be using one of the following patterns. Note that the []
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letters should not be included in the real-life string.
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.TP 0.8i
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.B [name]=[contents]
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Add a form field named 'name' with the contents 'contents'. This is the
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typcial contents of the HTML tag <input type=text>.
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.TP
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.B [name]=@[filename]
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Add a form field named 'name' with the contents as read from the local file
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named 'filename'. This is the typcial contents of the HTML tag <input
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type=file>.
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.TP
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.B [name]=@[filename1,filename2,...]
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Add a form field named 'name' with the contents as read from the local files
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named 'filename1' and 'filename2'. This is identical to the upper, except that
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you get the contents of several files in one section.
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.TP
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.B [name]=@[filename];[type=<content-type>]
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Whenever you specify a file to read from, you can optionally specify the
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content-type as well. The content-type is passed to the server together with
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the contents of the file. curl_formparse() will guess content-type for a
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number of well-known extensions and otherwise it will set it to binary. You
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can override the internal decision by using this option.
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.TP
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.B [name]=@[filename1,filename2,...];[type=<content-type>]
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When you specify several files to read the contents from, you can set the
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content-type for all of them in the same way as with a single file.
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.PP
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.SH RETURN VALUE
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Returns non-zero if an error occurs.
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.SH EXAMPLE
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HttpPost* post = NULL;
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HttpPost* last = NULL;
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/* Add an image section */
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curl_formparse("picture=@my-face.jpg", &post, &last);
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/* Add a normal text section */
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curl_formparse("name=FooBar", &post, &last);
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/* Set the form info */
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curl_easy_setopt(curl, CURLOPT_HTTPPOST, &post);
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.SH "SEE ALSO"
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.BR curl_easy_setopt "(3) "
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.SH BUGS
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Surely there are some, you tell me!
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