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/
usr/
src/
courier-0.66.1/
rfc2045/
- drwxrwxrwx
|
Viewing file:  rfc2045acchk.c (3.17 KB) -rw-rw-rw-Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/*
** Copyright 1998 - 2001 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "rfc2045_config.h"
#endif
#include "rfc2045.h"
#include <string.h>
#if HAVE_STRINGS_H
#include <strings.h>
#endif
#include <stdlib.h>
#include <stdio.h>
extern void rfc2045_enomem();
int rfc2045_ac_check(struct rfc2045 *p, int rwmode)
{
int flag=0; /* Flag - rewriting suggested */
struct rfc2045 *c;
int hasnon7bit=p->has8bitchars;
/* hasnon7bit: 8bit chars in this section or subsections */
const char *te;
int is8bitte;
for (c=p->firstpart; c; c=c->next)
if (!c->isdummy)
{
if (rfc2045_ac_check(c, rwmode)) flag=1;
if (c->content_transfer_encoding &&
strcmp(c->content_transfer_encoding, "7bit") &&
strcmp(c->content_transfer_encoding, "uuencode") &&
strcmp(c->content_transfer_encoding, "quoted-printable"))
hasnon7bit=1;
if (c->has8bitchars)
p->has8bitchars=1;
}
if (RFC2045_ISMIME1DEF(p->mime_version) && !p->content_type)
{
if ((p->content_type=strdup("text/plain")) == 0)
rfc2045_enomem();
if (p->mime_version)
{
flag=1;
}
}
if (RFC2045_ISMIME1DEF(p->mime_version)
&& !rfc2045_getattr(p->content_type_attr, "charset")
&& strncasecmp(p->content_type, "text/", 5) == 0)
{
if (rfc2045_attrset(&p->content_type_attr, "charset",
rfc2045_getdefaultcharset()) < 0)
rfc2045_enomem();
if (p->mime_version
&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
)
{
flag=1;
}
}
if (RFC2045_ISMIME1DEF(p->mime_version)
&& !p->content_transfer_encoding)
{
if ((p->content_transfer_encoding=strdup(
hasnon7bit ? "8bit":"7bit")) == 0)
rfc2045_enomem();
if (p->mime_version
&& p->firstpart == 0 /* sam - don't trigger rewrites on changes to multipart headers */
)
{
flag=1;
}
}
#if 0
if (RFC2045_ISMIME1DEF(p->mime_version)
&& strncmp(p->content_type, "text/", 5) == 0 && !hasnon7bit
&& strcmp(p->content_transfer_encoding, "7bit"))
{
if (p->mime_version)
{
flag=1;
}
}
#endif
if (RFC2045_ISMIME1DEF(p->mime_version))
{
/* Check for conversions */
te=p->content_transfer_encoding;
is8bitte=strcasecmp(te, "base64") &&
strcasecmp(te, "quoted-printable") &&
strcasecmp(te, "uuencode") &&
strcasecmp(te, "7bit"); /* 8 bit contents */
if (is8bitte && !p->has8bitchars && !p->haslongline)
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup("7bit")) == 0)
rfc2045_enomem();
flag=1;
is8bitte=0;
}
if (rwmode == RFC2045_RW_7BIT && (is8bitte || p->haslongline))
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup("quoted-printable"))
== 0)
rfc2045_enomem();
flag=1;
}
else if (rwmode == RFC2045_RW_8BIT &&
strcasecmp(te, "quoted-printable") == 0 &&
!p->haslongline)
{
if (p->rw_transfer_encoding)
free(p->rw_transfer_encoding);
if ((p->rw_transfer_encoding=strdup(hasnon7bit
? "8bit":"7bit")) == 0)
rfc2045_enomem();
flag=1;
}
}
if (!p->mime_version)
{
if ((p->mime_version=strdup("1.0")) == 0)
rfc2045_enomem();
}
return (flag);
}
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