Opening & accessing the RPM indices using Berkeley DB (the so called rpmdb)
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| rpmop | rpmdbOp (rpmdb db, rpmdbOpX opx) |
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| int | rpmdbOpenAll (rpmdb db) |
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| int | rpmdbCountPackages (rpmdb db, const char *name) |
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| unsigned int | rpmdbGetIteratorOffset (rpmdbMatchIterator mi) |
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| int | rpmdbGetIteratorCount (rpmdbMatchIterator mi) |
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| unsigned int | rpmdbGetIteratorFileNum (rpmdbMatchIterator mi) |
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| int | rpmdbAppendIterator (rpmdbMatchIterator mi, const unsigned int *hdrNums, unsigned int nHdrNums) |
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| int | rpmdbSetIteratorRE (rpmdbMatchIterator mi, rpmTagVal tag, rpmMireMode mode, const char *pattern) |
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| int | rpmdbSetIteratorRewrite (rpmdbMatchIterator mi, int rewrite) |
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| int | rpmdbSetIteratorModified (rpmdbMatchIterator mi, int modified) |
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| int | rpmdbSetHdrChk (rpmdbMatchIterator mi, rpmts ts, rpmRC(*hdrchk)(rpmts ts, const void *uh, size_t uc, char **msg)) |
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| rpmdbMatchIterator | rpmdbInitIterator (rpmdb db, rpmDbiTagVal rpmtag, const void *keyp, size_t keylen) |
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| Header | rpmdbNextIterator (rpmdbMatchIterator mi) |
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| rpmdbMatchIterator | rpmdbFreeIterator (rpmdbMatchIterator mi) |
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| rpmdbIndexIterator | rpmdbIndexKeyIteratorInit (rpmdb db, rpmDbiTag rpmtag) |
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| rpmdbIndexIterator | rpmdbIndexIteratorInit (rpmdb db, rpmDbiTag rpmtag) |
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| int | rpmdbIndexIteratorNext (rpmdbIndexIterator ii, const void **key, size_t *keylen) |
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| int | rpmdbIndexIteratorNextTd (rpmdbIndexIterator ii, rpmtd keytd) |
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| unsigned int | rpmdbIndexIteratorNumPkgs (rpmdbIndexIterator ii) |
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| unsigned int | rpmdbIndexIteratorPkgOffset (rpmdbIndexIterator ii, unsigned int nr) |
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| unsigned int | rpmdbIndexIteratorTagNum (rpmdbIndexIterator ii, unsigned int nr) |
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| rpmdbIndexIterator | rpmdbIndexIteratorFree (rpmdbIndexIterator ii) |
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| int | rpmdbCtrl (rpmdb db, rpmdbCtrlOp ctrl) |
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| char * | rpmdbCookie (rpmdb db) |
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| int | rpmdbStat (const char *prefix, struct stat *statbuf) |
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| int | rpmdbFStat (rpmdb db, struct stat *statbuf) |
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Opening & accessing the RPM indices using Berkeley DB (the so called rpmdb)
◆ rpmdbAppendIterator()
| int rpmdbAppendIterator |
( |
rpmdbMatchIterator |
mi, |
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const unsigned int * |
hdrNums, |
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unsigned int |
nHdrNums |
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) |
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Append items to set of package instances to iterate.
- Parameters
-
| mi | rpm database iterator |
| hdrNums | array of package instances |
| nHdrNums | number of elements in array |
- Returns
- 0 on success, 1 on failure (bad args)
◆ rpmdbCookie()
| char* rpmdbCookie |
( |
rpmdb |
db | ) |
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Retrieve rpm database changed-cookie. Useful for eg. determining cache validity.
- Parameters
-
- Returns
- cookie string (malloced), or NULL on error
◆ rpmdbCountPackages()
| int rpmdbCountPackages |
( |
rpmdb |
db, |
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const char * |
name |
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) |
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Return number of instances of package in rpm database.
- Parameters
-
| db | rpm database |
| name | rpm package name |
- Returns
- number of instances
◆ rpmdbCtrl()
manipulate the rpm database
- Parameters
-
| db | rpm database |
| ctrl | operation |
- Returns
- 0 on success; != 0 on error
◆ rpmdbFreeIterator()
Destroy rpm database iterator.
- Parameters
-
- Returns
- NULL always
◆ rpmdbFStat()
| int rpmdbFStat |
( |
rpmdb |
db, |
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struct stat * |
statbuf |
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) |
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Perform stat() on an open rpm database
- Parameters
-
- Return values
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| statbuf | returned data from stat() |
- Returns
- 0 on success, -1 on error
◆ rpmdbGetIteratorCount()
Return number of elements in rpm database iterator.
- Parameters
-
- Returns
- number of elements
◆ rpmdbGetIteratorFileNum()
◆ rpmdbGetIteratorOffset()
Return header join key for current position of rpm database iterator.
- Parameters
-
- Returns
- current header join key
◆ rpmdbIndexIteratorFree()
Free index iterator
- Parameters
-
| ii | index iterator return NULL |
◆ rpmdbIndexIteratorInit()
Get an iterator for an index
- Parameters
-
| db | rpm database |
| rpmtag | the index to iterate over |
- Returns
- the index iterator
◆ rpmdbIndexIteratorNext()
Get the next key - Warning! Keys are not zero terminated! Binary tags may even contain zero bytes
- Parameters
-
| ii | index iterator |
| key | address to save the pointer to the key |
| keylen | address to save the length of the key to |
- Returns
- 0 on success; != 0 on error or end of index
◆ rpmdbIndexIteratorNextTd()
Get the next key into a tag data container. Caller is responsible for calling rpmtdFreeData() to freeing the data returned in keytd once done with it.
- Parameters
-
| ii | index iterator |
| keytd | tag container to store the key in |
- Returns
- 0 on success; != 0 on error or end of index
◆ rpmdbIndexIteratorNumPkgs()
Get number of entries for current key
- Parameters
-
- Returns
- number of entries. 0 on error.
◆ rpmdbIndexIteratorPkgOffset()
Get package offset of entry
- Parameters
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| ii | index iterator |
| nr | number of the entry |
- Returns
- db offset of pkg
◆ rpmdbIndexIteratorTagNum()
Get tag number of entry
- Parameters
-
| ii | index iterator |
| nr | number of the entry |
- Returns
- number of tag within the package
◆ rpmdbIndexKeyIteratorInit()
Get an iterator for index keys
- Parameters
-
| db | rpm database |
| rpmtag | the index to iterate over |
- Returns
- the index iterator
◆ rpmdbInitIterator()
Return database iterator.
- Parameters
-
| db | rpm database |
| rpmtag | database index tag |
| keyp | key data (NULL for sequential access) |
| keylen | key data length (0 will use strlen(keyp)) |
- Returns
- NULL on failure
◆ rpmdbNextIterator()
Return next package header from iteration.
- Parameters
-
- Returns
- NULL on end of iteration.
◆ rpmdbOp()
Retrieve operation timestamp from rpm database.
- Parameters
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| db | rpm database |
| opx | operation timestamp index |
- Returns
- pointer to operation timestamp.
◆ rpmdbOpenAll()
| int rpmdbOpenAll |
( |
rpmdb |
db | ) |
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Open all database indices.
- Parameters
-
- Returns
- 0 on success
◆ rpmdbSetHdrChk()
Modify iterator to verify retrieved header blobs.
- Parameters
-
| mi | rpm database iterator |
| ts | transaction set |
| (*hdrchk) | headerCheck() vector |
- Returns
- 0 always
◆ rpmdbSetIteratorModified()
Modify iterator to mark header for lazy write on release.
- Parameters
-
| mi | rpm database iterator |
| modified | new value of modified |
- Returns
- previous value
◆ rpmdbSetIteratorRE()
Add pattern to iterator selector.
- Parameters
-
| mi | rpm database iterator |
| tag | rpm tag |
| mode | type of pattern match |
| pattern | pattern to match |
- Returns
- 0 on success
◆ rpmdbSetIteratorRewrite()
Prepare iterator for lazy writes.
- Note
- Must be called before rpmdbNextIterator() with CDB model database.
- Parameters
-
| mi | rpm database iterator |
| rewrite | new value of rewrite |
- Returns
- previous value
◆ rpmdbStat()
| int rpmdbStat |
( |
const char * |
prefix, |
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struct stat * |
statbuf |
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) |
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Perform stat() on rpm database
- Parameters
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| prefix | prefix or NULL for / |
- Return values
-
| statbuf | returned data from stat() |
- Returns
- 0 on success, -1 on error