mirror of https://gitee.com/openkylin/cups.git
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
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/*
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* Header for PPD data encoding example code.
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*
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* Copyright 2012 by Apple Inc.
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*
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* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
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*/
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#ifndef _PPDX_H_
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# define _PPDX_H_
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/*
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* Include necessary headers...
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*/
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# include <cups/ppd.h>
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/*
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* C++ magic...
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*/
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# ifdef __cplusplus
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extern "C" {
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# endif /* __cplusplus */
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/*
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* Maximum amount of data to encode/decode...
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*/
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# define PPDX_MAX_STATUS 1024 /* Limit on log messages in 10.6 */
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# define PPDX_MAX_DATA 16777216/* 16MiB */
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/*
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* 'ppdxReadData()' - Read encoded data from a ppd_file_t *.
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*
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* Reads chunked data in the PPD file "ppd" using the prefix "name". Returns
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* an allocated pointer to the data (which is nul-terminated for convenience)
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* along with the length of the data in the variable pointed to by "datasize",
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* which can be NULL to indicate the caller doesn't need the length.
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*
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* Returns NULL if no data is present in the PPD with the prefix.
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*/
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extern void *ppdxReadData(ppd_file_t *ppd, const char *name,
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size_t *datasize);
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/*
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* 'ppdxWriteData()' - Writes encoded data to stderr using PPD: messages.
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*
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* Writes chunked data to the PPD file using PPD: messages sent to stderr for
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* cupsd. "name" must be a valid PPD keyword string whose length is less than
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* 37 characters to allow for chunk numbering. "data" provides a pointer to the
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* data to be written, and "datasize" provides the length.
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*/
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extern void ppdxWriteData(const char *name, const void *data,
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size_t datasize);
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# ifdef __cplusplus
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}
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# endif /* __cplusplus */
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#endif /* !_PPDX_H */
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