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a29fd7dd | 1 | /* |
503b54c9 | 2 | * Header for PPD data encoding example code. |
a29fd7dd | 3 | * |
503b54c9 | 4 | * Copyright 2012 by Apple Inc. |
a29fd7dd | 5 | * |
e3101897 | 6 | * Licensed under Apache License v2.0. See the file "LICENSE" for more information. |
a29fd7dd MS |
7 | */ |
8 | ||
9 | #ifndef _PPDX_H_ | |
10 | # define _PPDX_H_ | |
11 | ||
12 | ||
13 | /* | |
14 | * Include necessary headers... | |
15 | */ | |
16 | ||
17 | # include <cups/ppd.h> | |
18 | ||
19 | ||
20 | /* | |
21 | * C++ magic... | |
22 | */ | |
23 | ||
24 | # ifdef __cplusplus | |
25 | extern "C" { | |
26 | # endif /* __cplusplus */ | |
27 | ||
28 | ||
29 | /* | |
30 | * Maximum amount of data to encode/decode... | |
31 | */ | |
32 | ||
33 | # define PPDX_MAX_STATUS 1024 /* Limit on log messages in 10.6 */ | |
34 | # define PPDX_MAX_DATA 16777216/* 16MiB */ | |
35 | ||
36 | ||
37 | /* | |
38 | * 'ppdxReadData()' - Read encoded data from a ppd_file_t *. | |
39 | * | |
40 | * Reads chunked data in the PPD file "ppd" using the prefix "name". Returns | |
41 | * an allocated pointer to the data (which is nul-terminated for convenience) | |
42 | * along with the length of the data in the variable pointed to by "datasize", | |
43 | * which can be NULL to indicate the caller doesn't need the length. | |
44 | * | |
45 | * Returns NULL if no data is present in the PPD with the prefix. | |
46 | */ | |
47 | ||
48 | extern void *ppdxReadData(ppd_file_t *ppd, const char *name, | |
49 | size_t *datasize); | |
50 | ||
51 | ||
52 | /* | |
53 | * 'ppdxWriteData()' - Writes encoded data to stderr using PPD: messages. | |
54 | * | |
55 | * Writes chunked data to the PPD file using PPD: messages sent to stderr for | |
56 | * cupsd. "name" must be a valid PPD keyword string whose length is less than | |
57 | * 37 characters to allow for chunk numbering. "data" provides a pointer to the | |
58 | * data to be written, and "datasize" provides the length. | |
59 | */ | |
60 | ||
61 | extern void ppdxWriteData(const char *name, const void *data, | |
62 | size_t datasize); | |
63 | ||
64 | ||
65 | # ifdef __cplusplus | |
66 | } | |
67 | # endif /* __cplusplus */ | |
68 | ||
69 | #endif /* !_PPDX_H */ |