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#ifndef H_HEADER_INTERNAL
#define H_HEADER_INTERNAL
/** \ingroup header
* \file lib/header_internal.h
*/
#include <rpm/header.h>
/** \ingroup header
* Description of tag data.
*/
typedef struct entryInfo_s * entryInfo;
struct entryInfo_s {
rpm_tag_t tag; /*!< Tag identifier. */
rpm_tagtype_t type; /*!< Tag data type. */
int32_t offset; /*!< Offset into data segment (ondisk only). */
rpm_count_t count; /*!< Number of tag elements. */
};
#define REGION_TAG_TYPE RPM_BIN_TYPE
#define REGION_TAG_COUNT sizeof(struct entryInfo_s)
/** \ingroup header
* A single tag from a Header.
*/
typedef struct indexEntry_s * indexEntry;
struct indexEntry_s {
struct entryInfo_s info; /*!< Description of tag data. */
rpm_data_t data; /*!< Location of tag data. */
int length; /*!< No. bytes of data. */
int rdlen; /*!< No. bytes of data in region. */
};
/**
* Sanity check on no. of tags.
* This check imposes a limit of 65K tags, more than enough.
*/
#define hdrchkTags(_ntags) ((_ntags) & 0xffff0000)
/**
* Sanity check on type values.
*/
#define hdrchkType(_type) ((_type) < RPM_MIN_TYPE || (_type) > RPM_MAX_TYPE)
/**
* Sanity check on data size and/or offset and/or count.
* This check imposes a limit of 16 MB, more than enough.
*/
#define HEADER_DATA_MAX 0x00ffffff
#define hdrchkData(_nbytes) ((_nbytes) & (~HEADER_DATA_MAX))
/**
* Sanity check on data alignment for data type.
*/
#define hdrchkAlign(_type, _off) ((_off) & (typeAlign[_type]-1))
/**
* Sanity check on range of data offset.
*/
#define hdrchkRange(_dl, _off) ((_off) < 0 || (_off) > (_dl))
#ifdef __cplusplus
extern "C" {
#endif
/** \ingroup header
* Set header instance (rpmdb record number)
* @param h header
* @param instance record number
*/
RPM_GNUC_INTERNAL
void headerSetInstance(Header h, unsigned int instance);
/* Package IO helper to consolidate partial read and error handling */
RPM_GNUC_INTERNAL
ssize_t Freadall(FD_t fd, void * buf, ssize_t size);
#ifdef __cplusplus
}
#endif
#endif /* H_HEADER_INTERNAL */
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