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First functions and structures for image import.

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This commit is contained in:
Vreixo Formoso
2008-01-03 19:17:55 +01:00
parent 2f535abe85
commit 58a7d8e853
5 changed files with 149 additions and 71 deletions
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61
src/fs_image.h
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@ -12,65 +12,7 @@
#include "libisofs.h"
#include "fsource.h"
/**
* Options for image reading.
* There are four kind of options:
* - Related to multisession support.
* In most cases, an image begins at LBA 0 of the data source. However,
* in multisession discs, the later image begins in the last session on
* disc. The block option can be used to specify the start of that last
* session.
* - Related to the tree that will be read.
* As default, when Rock Ridge extensions are present in the image, that
* will be used to get the tree. If RR extensions are not present, libisofs
* will use the Joliet extensions if available. Finally, the plain ISO-9660
* tree is used if neither RR nor Joliet extensions are available. With
* norock, nojoliet, and preferjoliet options, you can change this
* default behavior.
* - Related to default POSIX attributes.
* When Rock Ridege extensions are not used, libisofs can't figure out what
* are the the permissions, uid or gid for the files. You should supply
* default values for that.
* - Return information for image.
* Both size, hasRR and hasJoliet will be filled by libisofs with suitable values.
* Also, error is set to non-0 if some error happens (error codes are
* private now)
*/
struct iso_read_opts
{
uint32_t block; /** Block where the image begins, usually 0, can be
* different on a multisession disc.
*/
unsigned int norock : 1; /*< Do not read Rock Ridge extensions */
unsigned int nojoliet : 1; /*< Do not read Joliet extensions */
/**
* When both Joliet and RR extensions are present, the RR tree is used.
* If you prefer using Joliet, set this to 1.
*/
unsigned int preferjoliet : 1;
uid_t uid; /**< Default uid when no RR */
gid_t gid; /**< Default uid when no RR */
mode_t mode; /**< Default mode when no RR (only permissions) */
//TODO differ file and dir mode
//option to convert names to lower case?
struct libiso_msgs *messenger;
char *input_charset;
/* modified by the function */
// unsigned int hasRR:1; /*< It will be set to 1 if RR extensions are present,
// to 0 if not. */
// unsigned int hasJoliet:1; /*< It will be set to 1 if Joliet extensions are
// present, to 0 if not. */
// uint32_t size; /**< Will be filled with the size (in 2048 byte block) of
// * the image, as reported in the PVM. */
//int error;
};
struct libiso_msgs;
typedef struct Iso_Image_Filesystem IsoImageFilesystem;
/**
@ -102,6 +44,7 @@ struct Iso_Image_Filesystem
};
int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
struct libiso_msgs *messenger,
IsoImageFilesystem **fs);
#endif /*LIBISO_FS_IMAGE_H_*/