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/* Content-Type (RFC 2045) parser for GNU Mailutils
Copyright (C) 2016-2018 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <mailutils/types.h>
#include <mailutils/mime.h>
#include <mailutils/assoc.h>
#include <mailutils/util.h>
#include <mailutils/errno.h>
static int
content_type_parse (const char *input, const char *charset,
mu_content_type_t ct)
{
int rc;
char *value, *p;
rc = mu_mime_header_parse (input, charset, &value, &ct->param);
if (rc)
return rc;
p = strchr (value, '/');
if (p)
{
size_t len = p - value;
ct->type = malloc (len + 1);
if (!ct->type)
{
rc = errno;
free (value);
return rc;
}
memcpy (ct->type, value, len);
ct->type[len] = 0;
ct->subtype = strdup (p + 1);
if (!ct->subtype)
{
rc = errno;
free (value);
return rc;
}
}
else
{
ct->type = value;
ct->subtype = NULL;
}
return 0;
}
int
mu_content_type_parse (const char *input, const char *charset,
mu_content_type_t *retct)
{
int rc;
mu_content_type_t ct;
if (!input)
return EINVAL;
if (!retct)
return MU_ERR_OUT_PTR_NULL;
ct = calloc (1, sizeof (*ct));
if (!ct)
return errno;
rc = content_type_parse (input, charset, ct);
if (rc)
mu_content_type_destroy (&ct);
else
*retct = ct;
return rc;
}
void
mu_content_type_destroy (mu_content_type_t *pptr)
{
if (pptr && *pptr)
{
mu_content_type_t ct = *pptr;
free (ct->type);
free (ct->subtype);
free (ct->trailer);
mu_assoc_destroy (&ct->param);
free (ct);
*pptr = NULL;
}
}
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