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New API call iso_file_source_get_aa_string()

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and IsoFileSource_Iface.version == 1 with ifs_class
Now libisofs is able to load AA strings from images and to store them again.
This commit is contained in:
Thomas Schmitt
2009-01-15 21:58:48 +01:00
parent de99f93640
commit 9dc56426c0
5 changed files with 101 additions and 7 deletions
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27
libisofs/libisofs.h
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@@ -463,7 +463,9 @@ struct IsoFileSource_Iface
/**
* Tells the version of the interface:
* Version 0 provides functions up to (*lseek)().
* @since 0.6.2
* Version 1 additionally provides function *(get_aa_string)().
* @since 0.6.14
*/
int version;
@@ -688,7 +690,7 @@ struct IsoFileSource_Iface
* (e.g. ISO_FILE_ERROR if no better one can be found).
* @since 0.6.14
*/
unsigned char *(*get_aa_string)(IsoFileSource *src,
int (*get_aa_string)(IsoFileSource *src,
unsigned char **aa_string, int flag);
/*
@@ -3650,6 +3652,29 @@ int iso_file_source_readdir(IsoFileSource *src, IsoFileSource **child);
*/
int iso_file_source_readlink(IsoFileSource *src, char *buf, size_t bufsiz);
/**
* Get the AA string with encoded ACL and/or POSIX Extended Attributes.
* (Not to be confused with ECMA-119 Extended Attributes).
* @param src The file source object to be inquired.
* @param aa_string Returns a pointer to the AA string data. If no AA
* string is available, *aa_string becomes NULL.
* The caller is responsible for finally calling free()
* on non-NULL results.
* (See doc/susp_aaip_0_2.txt for the meaning of AA and
* libisofs/aaip_0_2.h for encoding and decoding.)
* @param flag Bitfield for control purposes
* bit0= Transfer ownership of AA string data.
* src will free the eventual cached data and might
* not be able to produce it again.
* @return 1 means success (*aa_string == NULL is possible)
* <0 means failure and must b a valid libisofs error code
* (e.g. ISO_FILE_ERROR if no better one can be found).
* @since 0.6.14
*/
int iso_file_source_get_aa_string(IsoFileSource *src,
unsigned char **aa_string, int flag);
/**
* Get the filesystem for this source. No extra ref is added, so you
* musn't unref the IsoFilesystem.