# xxfi_body

SYNOPSIS |
    #include <libmilter/mfapi.h>
    sfsistat (*xxfi_body)(
    	SMFICTX *ctx,
    	unsigned char *bodyp,
    	size_t len
    );
Handle a piece of a message's body.
DESCRIPTION |
Called When | xxfi_body is called zero or more times between xxfi_eoh and xxfi_eom.
Default Behavior | Do nothing; return SMFIS_CONTINUE.
ARGUMENTS |
Argument | Description
--- | ---
ctx | Opaque context structure.
bodyp | Pointer to the start of this block of body data. bodyp is not valid outside this call to xxfi_body.
len | The amount of data pointed to by bodyp.
NOTES | bodyp points to a sequence of bytes. It is not a C string (a sequence of characters that is terminated by '\0'). Therefore, do not use the usual C string functions like `strlen(3)` on this byte block. Moreover, the byte sequence may contain '\0' characters inside the block. Hence even if a trailing '\0' is added, C string functions may still fail to work as expected. Since message bodies can be very large, defining xxfi_body can significantly impact filter performance. End-of-lines are represented as received from SMTP (normally CR/LF). Later filters will see body changes made by earlier ones. Message bodies may be sent in multiple chunks, with one call to xxfi_body per chunk. Return SMFIS_SKIP if a milter has received sufficiently many body chunks to make a decision, but still wants to invoke message modification functions that are only allowed to be called from xxfi_eom(). Note: the milter must negotiate this behavior with the MTA, i.e., it must check whether the protocol action `SMFIP_SKIP` is available and if so, the milter must request it.

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