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