mime.h

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#ifndef MUTT_EMAIL_MIME_H
#define MUTT_EMAIL_MIME_H

enum ContentType
{
  TYPE_OTHER,       
  TYPE_AUDIO,       
  TYPE_APPLICATION, 
  TYPE_IMAGE,       
  TYPE_MESSAGE,     
  TYPE_MODEL,       
  TYPE_MULTIPART,   
  TYPE_TEXT,        
  TYPE_VIDEO,       
  TYPE_ANY,         
};

enum ContentEncoding
{
  ENC_OTHER,            
  ENC_7BIT,             
  ENC_8BIT,             
  ENC_QUOTED_PRINTABLE, 
  ENC_BASE64,           
  ENC_BINARY,           
  ENC_UUENCODED,        
};

enum ContentDisposition
{
  DISP_INLINE,    
  DISP_ATTACH,    
  DISP_FORM_DATA, 
  DISP_NONE,      
};

/* Some limits to mitigate stack overflow and denial of service attacks */
#define MUTT_MIME_MAX_DEPTH  50
#define MUTT_MIME_MAX_PARTS  5000


/* MIME encoding/decoding global vars */

extern const int IndexHex[128];
extern const char *const BodyTypes[];
extern const char *const BodyEncodings[];
extern const char MimeSpecials[];

#define hexval(ch) IndexHex[(unsigned int) (ch)]

#define is_multipart(body)                                                     \
  (((body)->type == TYPE_MULTIPART) ||                                         \
   (((body)->type == TYPE_MESSAGE) && ((body)->subtype) &&                     \
    ((strcasecmp((body)->subtype, "rfc822") == 0) ||                           \
     (strcasecmp((body)->subtype, "news") == 0) ||                             \
     (strcasecmp((body)->subtype, "global") == 0))))

#define TYPE(body)                                                             \
  ((body->type == TYPE_OTHER) && body->xtype ? body->xtype : BodyTypes[(body->type)])

#define ENCODING(x) BodyEncodings[(x)]

#endif /* MUTT_EMAIL_MIME_H */