rpm 4.20.0 The RPM Package Manager

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header.h File Reference
Querying package headers: » Header API.
`#include <rpm/rpmio.h>`
`#include <rpm/rpmtypes.h>`
`#include <rpm/rpmtd.h>`
`#include <rpm/rpmutil.h>`
Include dependency graph for header.h:
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Go to the source code of this file.

## Typedefs
typedef rpmFlags | headerImportFlags
typedef rpmFlags | headerGetFlags
typedef rpmFlags | headerPutFlags
typedef enum headerConvOps_e | headerConvOps

## Enumerations
enum | hMagic { HEADER_MAGIC_NO = 0 , HEADER_MAGIC_YES = 1 }
enum | headerImportFlags_e { HEADERIMPORT_COPY = (1 << 0) , HEADERIMPORT_FAST = (1 << 1) }
enum | headerGetFlags_e { HEADERGET_DEFAULT = 0 , HEADERGET_MINMEM = (1 << 0) , HEADERGET_EXT = (1 << 1) , HEADERGET_RAW = (1 << 2) , HEADERGET_ALLOC = (1 << 3) , HEADERGET_ARGV = (1 << 4) }
enum | headerPutFlags_e { HEADERPUT_DEFAULT = 0 , HEADERPUT_APPEND = (1 << 0) }
enum | headerConvOps_e { HEADERCONV_EXPANDFILELIST = 0 , HEADERCONV_COMPRESSFILELIST = 1 , HEADERCONV_RETROFIT_V3 = 2 }

## Functions
Header | headerNew (void)
Header | headerFree (Header h)
Header | headerLink (Header h)
unsigned int | headerSizeof (Header h, int magicp)
void * | headerExport (Header h, unsigned int *bsize)
Header | headerReload (Header h, rpmTagVal tag)
Header | headerCopy (Header h)
Header | headerImport (void *blob, unsigned int bsize, headerImportFlags flags)
Header | headerRead (FD_t fd, int magicp)
int | headerWrite (FD_t fd, Header h, int magicp)
int | headerIsEntry (Header h, rpmTagVal tag)
int | headerGet (Header h, rpmTagVal tag, rpmtd td, headerGetFlags flags)
int | headerPut (Header h, rpmtd td, headerPutFlags flags)
int | headerAddI18NString (Header h, rpmTagVal tag, const char *string, const char *lang)
int | headerMod (Header h, rpmtd td)
int | headerDel (Header h, rpmTagVal tag)
char * | headerFormat (Header h, const char *fmt, errmsg_t *errmsg)
void | headerCopyTags (Header headerFrom, Header headerTo, const rpmTagVal *tagstocopy)
HeaderIterator | headerFreeIterator (HeaderIterator hi)
HeaderIterator | headerInitIterator (Header h)
int | headerNext (HeaderIterator hi, rpmtd td)
rpmTagVal | headerNextTag (HeaderIterator hi)
char * | headerGetAsString (Header h, rpmTagVal tag)
const char * | headerGetString (Header h, rpmTagVal tag)
uint64_t | headerGetNumber (Header h, rpmTagVal tag)
int | headerIsSource (Header h)
unsigned int | headerGetInstance (Header h)
int | headerConvert (Header h, int op)
int | headerPutBin (Header h, rpmTagVal tag, const uint8_t *val, rpm_count_t size)
int | headerPutString (Header h, rpmTagVal tag, const char *val)
int | headerPutStringArray (Header h, rpmTagVal tag, const char **val, rpm_count_t size)
int | headerPutChar (Header h, rpmTagVal tag, const char *val, rpm_count_t size)
int | headerPutUint8 (Header h, rpmTagVal tag, const uint8_t *val, rpm_count_t size)
int | headerPutUint16 (Header h, rpmTagVal tag, const uint16_t *val, rpm_count_t size)
int | headerPutUint32 (Header h, rpmTagVal tag, const uint32_t *val, rpm_count_t size)
int | headerPutUint64 (Header h, rpmTagVal tag, const uint64_t *val, rpm_count_t size)

## Variables
const unsigned char | rpm_header_magic [8]

## Detailed Description

An rpm header carries all information about a package. A header is a collection of data elements called tags. Each tag has a data type, and includes 1 or more values.