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ef416fc2 | 1 | /* |
2 | * "$Id: mime.h 4613 2005-08-30 12:41:48Z mike $" | |
3 | * | |
4 | * MIME type/conversion database definitions for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 1997-2005 by Easy Software Products, all rights reserved. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | */ | |
24 | ||
25 | #ifndef _CUPS_MIME_H_ | |
26 | # define _CUPS_MIME_H_ | |
27 | ||
28 | # include <cups/ipp.h> | |
29 | # include <cups/file.h> | |
30 | ||
31 | ||
32 | /* | |
33 | * C++ magic... | |
34 | */ | |
35 | ||
36 | # ifdef _cplusplus | |
37 | extern "C" { | |
38 | # endif /* _cplusplus */ | |
39 | ||
40 | ||
41 | /* | |
42 | * Constants... | |
43 | */ | |
44 | ||
45 | # define MIME_MAX_SUPER 16 /* Maximum size of supertype name */ | |
46 | # define MIME_MAX_TYPE IPP_MAX_NAME /* Maximum size of type name */ | |
47 | # define MIME_MAX_FILTER 256 /* Maximum size of filter pathname */ | |
48 | # define MIME_MAX_BUFFER 8192 /* Maximum size of file buffer */ | |
49 | ||
50 | ||
51 | /* | |
52 | * Types/structures... | |
53 | */ | |
54 | ||
55 | typedef enum | |
56 | { | |
57 | MIME_MAGIC_NOP, /* No operation */ | |
58 | MIME_MAGIC_AND, /* Logical AND of all children */ | |
59 | MIME_MAGIC_OR, /* Logical OR of all children */ | |
60 | MIME_MAGIC_MATCH, /* Filename match */ | |
61 | MIME_MAGIC_ASCII, /* ASCII characters in range */ | |
62 | MIME_MAGIC_PRINTABLE, /* Printable characters (32-255) in range */ | |
63 | MIME_MAGIC_STRING, /* String matches */ | |
64 | MIME_MAGIC_CHAR, /* Character/byte matches */ | |
65 | MIME_MAGIC_SHORT, /* Short/16-bit word matches */ | |
66 | MIME_MAGIC_INT, /* Integer/32-bit word matches */ | |
67 | MIME_MAGIC_LOCALE, /* Current locale matches string */ | |
68 | MIME_MAGIC_CONTAINS, /* File contains a string */ | |
69 | MIME_MAGIC_ISTRING /* Case-insensitive string matches */ | |
70 | } mime_op_t; | |
71 | ||
72 | typedef struct mime_magic_str /**** MIME Magic Data ****/ | |
73 | { | |
74 | struct mime_magic_str *prev, /* Previous rule */ | |
75 | *next, /* Next rule */ | |
76 | *parent, /* Parent rules */ | |
77 | *child; /* Child rules */ | |
78 | short op, /* Operation code (see above) */ | |
79 | invert; /* Invert the result */ | |
80 | int offset, /* Offset in file */ | |
81 | region, /* Region length */ | |
82 | length; /* Length of data */ | |
83 | union | |
84 | { | |
85 | char matchv[64]; /* Match value */ | |
86 | char localev[64]; /* Locale value */ | |
87 | char stringv[64]; /* String value */ | |
88 | char charv; /* Byte value */ | |
89 | short shortv; /* Short value */ | |
90 | int intv; /* Integer value */ | |
91 | } value; | |
92 | } mime_magic_t; | |
93 | ||
94 | typedef struct /**** MIME Type Data ****/ | |
95 | { | |
96 | char super[MIME_MAX_SUPER], /* Super-type name ("image", "application", etc.) */ | |
97 | *type; /* Type name ("png", "postscript", etc.) */ | |
98 | mime_magic_t *rules; /* Rules used to detect this type */ | |
99 | } mime_type_t; | |
100 | ||
101 | typedef struct /**** MIME Conversion Filter Data ****/ | |
102 | { | |
103 | mime_type_t *src, /* Source type */ | |
104 | *dst; /* Destination type */ | |
105 | int cost; /* Relative cost */ | |
106 | char filter[MIME_MAX_FILTER];/* Filter program to use */ | |
107 | } mime_filter_t; | |
108 | ||
109 | typedef struct /**** MIME Database ****/ | |
110 | { | |
111 | int num_types; /* Number of file types */ | |
112 | mime_type_t **types; /* File types */ | |
113 | int num_filters; /* Number of type conversion filters */ | |
114 | mime_filter_t *filters; /* Type conversion filters */ | |
115 | } mime_t; | |
116 | ||
117 | ||
118 | /* | |
119 | * Functions... | |
120 | */ | |
121 | ||
122 | extern void mimeDelete(mime_t *mime); | |
123 | #define mimeLoad(pathname,filterpath) \ | |
124 | mimeMerge((mime_t *)0, (pathname), (filterpath)) | |
125 | extern mime_t *mimeMerge(mime_t *mime, const char *pathname, | |
126 | const char *filterpath); | |
127 | extern mime_t *mimeNew(void); | |
128 | ||
129 | extern mime_type_t *mimeAddType(mime_t *mime, const char *super, const char *type); | |
130 | extern int mimeAddTypeRule(mime_type_t *mt, const char *rule); | |
131 | extern mime_type_t *mimeFileType(mime_t *mime, const char *pathname, | |
132 | int *compression); | |
133 | extern mime_type_t *mimeType(mime_t *mime, const char *super, const char *type); | |
134 | ||
135 | extern mime_filter_t *mimeAddFilter(mime_t *mime, mime_type_t *src, mime_type_t *dst, | |
136 | int cost, const char *filter); | |
137 | extern mime_filter_t *mimeFilter(mime_t *mime, mime_type_t *src, mime_type_t *dst, | |
138 | int *num_filters, int max_depth); | |
139 | ||
140 | # ifdef _cplusplus | |
141 | } | |
142 | # endif /* _cplusplus */ | |
143 | #endif /* !_CUPS_MIME_H_ */ | |
144 | ||
145 | /* | |
146 | * End of "$Id: mime.h 4613 2005-08-30 12:41:48Z mike $". | |
147 | */ |