1 /* $Cambridge: exim/src/src/mime.h,v 1.1.2.2 2004/11/26 16:04:26 tom Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 #ifdef WITH_CONTENT_SCAN
9 /* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2004 */
13 #define MIME_MAX_HEADER_SIZE 8192
14 #define MIME_MAX_LINE_LENGTH 32768
16 #define MBC_ATTACHMENT 0
17 #define MBC_COVERLETTER_ONESHOT 1
18 #define MBC_COVERLETTER_ALL 2
20 struct mime_boundary_context
22 struct mime_boundary_context *parent;
23 unsigned char *boundary;
27 typedef struct mime_header {
33 static mime_header mime_header_list[] = {
34 { US"content-type:", 13, &mime_content_type },
35 { US"content-disposition:", 20, &mime_content_disposition },
36 { US"content-transfer-encoding:", 26, &mime_content_transfer_encoding },
37 { US"content-id:", 11, &mime_content_id },
38 { US"content-description:", 20 , &mime_content_description }
41 static int mime_header_list_size = sizeof(mime_header_list)/sizeof(mime_header);
45 typedef struct mime_parameter {
51 static mime_parameter mime_parameter_list[] = {
52 { US"name=", 5, &mime_filename },
53 { US"filename=", 9, &mime_filename },
54 { US"charset=", 8, &mime_charset },
55 { US"boundary=", 9, &mime_boundary }
58 static int mime_parameter_list_size = sizeof(mime_parameter_list)/sizeof(mime_parameter);
60 /* BASE64 decoder matrix */
61 static unsigned char mime_b64[256]={
62 /* 0 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
63 /* 16 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
64 /* 32 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 62, 128, 128, 128, 63,
65 /* 48 */ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 128, 128, 128, 255, 128, 128,
66 /* 64 */ 128, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
67 /* 80 */ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 128, 128, 128, 128, 128,
68 /* 96 */ 128, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
69 /* 112 */ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 128, 128, 128, 128, 128,
70 /* 128 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
71 /* 144 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
72 /* 160 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
73 /* 176 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
74 /* 192 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
75 /* 208 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
76 /* 224 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
77 /* 240 */ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128