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/*
* $Id$
*
* MiniMIME - a library for handling MIME messages
*
* Copyright (C) 2003 Jann Fischer <rezine@mistrust.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JANN FISCHER AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JANN FISCHER OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "mm_internal.h"
#include "mm_util.h"
/** @file mm_header.c
*
* This module contains functions for manipulating MIME headers
*/
/**
* Creates a new MIME header object
*
* @return A new and initialized MIME header object
* @see mm_mimeheader_free
*
* This function creates and initializes a new MIME header object, which must
* later be freed using mm_mimeheader_free()
*/
struct mm_mimeheader *
mm_mimeheader_new(void)
{
struct mm_mimeheader *header;
header = (struct mm_mimeheader *)xmalloc(sizeof(struct mm_mimeheader));
header->name = NULL;
header->value = NULL;
TAILQ_INIT(&header->params);
return header;
}
/**
* Frees a MIME header object
*
* @param header The MIME header object which to free
*/
void
mm_mimeheader_free(struct mm_mimeheader *header)
{
struct mm_param *param;
assert(header != NULL);
if (header->name != NULL) {
xfree(header->name);
header->name = NULL;
}
if (header->value != NULL) {
xfree(header->value);
header->value = NULL;
}
TAILQ_FOREACH(param, &header->params, next) {
TAILQ_REMOVE(&header->params, param, next);
mm_param_free(param);
}
xfree(header);
header = NULL;
}
/**
* Creates a new MIME header, but does no checks whatsoever (create as-is)
*/
struct mm_mimeheader *
mm_mimeheader_generate(const char *name, const char *value)
{
struct mm_mimeheader *header;
header = mm_mimeheader_new();
header->name = xstrdup(name);
header->value = xstrdup(value);
return header;
}
/**
* Attaches a parameter to a MimeHeader object
*
* @param hdr The target MimeHeader object
* @param param The parameter to attach
* @return 0 on success and -1 on failure
* @ingroup mimeheader
*/
int
mm_mimeheader_attachparam(struct mm_mimeheader *hdr, struct mm_param *param)
{
assert(hdr != NULL);
assert(param != NULL);
if (TAILQ_EMPTY(&hdr->params)) {
TAILQ_INSERT_HEAD(&hdr->params, param, next);
} else {
TAILQ_INSERT_TAIL(&hdr->params, param, next);
}
return 0;
}
/**
* Gets a parameter value from a MimeHeader object.
*
* @param hdr the MimeHeader object
* @param name the name of the parameter to retrieve
* @return The value of the parameter on success or a NULL pointer on failure
* @ingroup mimeheader
*/
char *
mm_mimeheader_getparambyname(struct mm_mimeheader *hdr, const char *name)
{
struct mm_param *param;
assert(hdr != NULL);
TAILQ_FOREACH(param, &hdr->params, next) {
if (!strcasecmp(param->name, name)) {
return param->value;
}
}
return NULL;
}
int
mm_mimeheader_uncomment(struct mm_mimeheader *header)
{
char *new;
assert(header != NULL);
assert(header->name != NULL);
assert(header->value != NULL);
new = mm_uncomment(header->value);
if (new == NULL)
return -1;
xfree(header->value);
header->value = new;
return 0;
}
int
mm_mimeheader_uncommentbyname(struct mm_mimepart *part, const char *name)
{
struct mm_mimeheader *header;
TAILQ_FOREACH(header, &part->headers, next) {
if (!strcasecmp(header->name, name)) {
return mm_mimeheader_uncomment(header);
}
}
/* Not found */
return -1;
}
int
mm_mimeheader_uncommentall(struct mm_mimepart *part)
{
struct mm_mimeheader *header;
int ret, r;
ret = 0;
TAILQ_FOREACH(header, &part->headers, next) {
if ((r = mm_mimeheader_uncomment(header)) == -1) {
ret = -1;
}
}
return ret;
}
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