2001-08-21 09:18:07 -04:00
|
|
|
.\" You can view this file with:
|
|
|
|
|
.\" nroff -man [file]
|
|
|
|
|
.\" $Id$
|
|
|
|
|
.\"
|
2001-08-28 04:55:26 -04:00
|
|
|
.TH curl_formadd 3 "27 August 2001" "libcurl 7.9" "libcurl Manual"
|
2001-08-21 09:18:07 -04:00
|
|
|
.SH NAME
|
|
|
|
|
curl_formadd - add a section to a multipart/formdata HTTP POST
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.B #include <curl/curl.h>
|
|
|
|
|
.sp
|
|
|
|
|
.BI "CURLcode curl_formadd(struct HttpPost ** " firstitem,
|
|
|
|
|
.BI "struct HttpPost ** " lastitem, " ...);"
|
|
|
|
|
.ad
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
curl_formadd() is used to append sections when building a multipart/formdata
|
|
|
|
|
HTTP POST (sometimes refered to as rfc1867-style posts). Append one section at
|
|
|
|
|
a time until you've added all the sections you want included and then you pass
|
|
|
|
|
the \fIfirstitem\fP pointer as parameter to \fBCURLOPT_HTTPPOST\fP.
|
|
|
|
|
\fIlastitem\fP is set after each call and on repeated invokes it should be
|
|
|
|
|
left as set to allow repeated invokes to find the end of the list in a faster
|
|
|
|
|
way.
|
|
|
|
|
|
|
|
|
|
After \fIlastitem\fP follow the real arguments that constitute the
|
|
|
|
|
new section (if the following description confuses you jump directly
|
|
|
|
|
to the examples):
|
|
|
|
|
|
2001-08-28 04:55:26 -04:00
|
|
|
CURLFORM_COPYNAME or CURLFORM_PTRNAME followed by a string is used for
|
|
|
|
|
the name of the section. Optionally one may use CURLFORM_NAMELENGTH to
|
|
|
|
|
specify the length of the name (allowing null characters within the name).
|
2001-08-21 09:18:07 -04:00
|
|
|
|
2001-08-28 04:55:26 -04:00
|
|
|
The three options for providing values are: CURLFORM_COPYCONTENTS,
|
|
|
|
|
CURLFORM_PTRCONTENTS, or CURLFORM_FILE, followed by a char or void
|
2001-08-21 09:18:07 -04:00
|
|
|
pointer (allowed for PTRCONTENTS).
|
|
|
|
|
|
2001-08-28 04:55:26 -04:00
|
|
|
Other arguments may be CURLFORM_CONTENTTYPE if the
|
2001-08-21 09:18:07 -04:00
|
|
|
user wishes to specify one (for FILE if no type is given the library
|
|
|
|
|
tries to provide the correct one; for CONTENTS no Content-Type is sent
|
|
|
|
|
in this case)
|
|
|
|
|
|
2001-08-28 04:55:26 -04:00
|
|
|
For CURLFORM_PTRCONTENTS or CURLFORM_COPYNAME the user may also add
|
|
|
|
|
CURLFORM_CONTENTSLENGTH followed by the length as a long (if not given
|
|
|
|
|
the library will use strlen to determine the length).
|
2001-08-21 09:18:07 -04:00
|
|
|
|
|
|
|
|
For CURLFORM_FILE the user may send multiple files in one section by
|
|
|
|
|
providing multiple CURLFORM_FILE arguments each followed by the filename
|
|
|
|
|
(and each FILE is allowed to have a CONTENTTYPE).
|
|
|
|
|
|
|
|
|
|
The last argument always is CURLFORM_END.
|
|
|
|
|
|
|
|
|
|
The pointers \fI*firstitem\fP and \fI*lastitem\fP should both be pointing to
|
|
|
|
|
NULL in the first call to this function. All list-data will be allocated by
|
|
|
|
|
the function itself. You must call \fIcurl_formfree\fP after the form post has
|
|
|
|
|
been done to free the resources again.
|
|
|
|
|
|
|
|
|
|
This function will copy all input data except the data pointed to by
|
2001-08-28 04:55:26 -04:00
|
|
|
the arguments after CURLFORM_PTRNAME and CURLFORM_PTRCONTENTS and keep
|
|
|
|
|
its own version of it allocated until you call \fIcurl_formfree\fP. When
|
2001-08-21 09:18:07 -04:00
|
|
|
you've passed the pointer to \fIcurl_easy_setopt\fP, you must not free
|
|
|
|
|
the list until after you've called \fIcurl_easy_cleanup\fP for the
|
2001-08-28 04:55:26 -04:00
|
|
|
curl handle. If you provide a pointer as an arguments after
|
|
|
|
|
CURLFORM_PTRNAME or CURLFORM_PTRCONTENTS you must ensure that the pointer
|
|
|
|
|
stays valid until you call \fIcurl_form_free\fP and \fIcurl_easy_cleanup\fP.
|
2001-08-21 09:18:07 -04:00
|
|
|
|
|
|
|
|
See example below.
|
|
|
|
|
.SH RETURN VALUE
|
|
|
|
|
Returns non-zero if an error occurs.
|
|
|
|
|
.SH EXAMPLE
|
|
|
|
|
.nf
|
|
|
|
|
|
|
|
|
|
HttpPost* post = NULL;
|
|
|
|
|
HttpPost* last = NULL;
|
2001-08-28 04:55:26 -04:00
|
|
|
char namebuffer[] = "name buffer";
|
|
|
|
|
long namelength = strlen(namebuffer);
|
2001-08-21 09:18:07 -04:00
|
|
|
char buffer[] = "test buffer";
|
|
|
|
|
char htmlbuffer[] = "<HTML>test buffer</HTML>";
|
|
|
|
|
long htmlbufferlength = strlen(htmlbuffer);
|
|
|
|
|
/* add null character into htmlbuffer, to demonstrate that
|
|
|
|
|
transfers of buffers containing null characters actually work
|
|
|
|
|
*/
|
|
|
|
|
htmlbuffer[8] = '\\0';
|
|
|
|
|
|
|
|
|
|
/* Add simple name/content section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "name",
|
|
|
|
|
CURLFORM_COPYCONTENTS, "content", CURLFORM_END);
|
|
|
|
|
/* Add simple name/content/contenttype section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "htmlcode",
|
|
|
|
|
CURLFORM_COPYCONTENTS, "<HTML></HTML>",
|
|
|
|
|
CURLFORM_CONTENTTYPE, "text/html", CURLFORM_END);
|
|
|
|
|
/* Add name/ptrcontent section */
|
2001-08-28 04:55:26 -04:00
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "name_for_ptrcontent",
|
2001-08-21 09:18:07 -04:00
|
|
|
CURLFORM_PTRCONTENTS, buffer, CURLFORM_END);
|
2001-08-28 04:55:26 -04:00
|
|
|
/* Add ptrname/ptrcontent section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_PTRNAME, namebuffer,
|
|
|
|
|
CURLFORM_PTRCONTENTS, buffer, CURLFORM_NAMELENGTH,
|
|
|
|
|
namelength, CURLFORM_END);
|
2001-08-21 09:18:07 -04:00
|
|
|
/* Add name/ptrcontent/contenttype section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "html_code_with_hole",
|
|
|
|
|
CURLFORM_PTRCONTENTS, htmlbuffer,
|
|
|
|
|
CURLFORM_CONTENTSLENGTH, htmlbufferlength,
|
|
|
|
|
CURLFORM_CONTENTTYPE, "text/html", CURLFORM_END);
|
|
|
|
|
/* Add simple file section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "picture",
|
|
|
|
|
CURLFORM_FILE, "my-face.jpg", CURLFORM_END);
|
|
|
|
|
/* Add file/contenttype section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "picture",
|
|
|
|
|
CURLFORM_FILE, "my-face.jpg",
|
|
|
|
|
CURLFORM_CONTENTTYPE, "image/jpeg", CURLFORM_END);
|
|
|
|
|
/* Add two file section */
|
|
|
|
|
curl_formadd(&post, &last, CURLFORM_COPYNAME, "pictures",
|
|
|
|
|
CURLFORM_FILE, "my-face.jpg",
|
|
|
|
|
CURLFORM_FILE, "your-face.jpg", CURLFORM_END);
|
|
|
|
|
/* Set the form info */
|
|
|
|
|
curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
|
|
|
|
|
|
|
|
|
|
.SH "SEE ALSO"
|
|
|
|
|
.BR curl_easy_setopt "(3), "
|
|
|
|
|
.BR curl_formparse "(3) [deprecated], "
|
|
|
|
|
.BR curl_formfree "(3)
|
|
|
|
|
.SH BUGS
|
|
|
|
|
Surely there are some, you tell me!
|
|
|
|
|
|
