59 lines
2.2 KiB
Text
59 lines
2.2 KiB
Text
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PhotoRec - Theory of operation:
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Carvers are plugable. Each carver consists of:
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struct file_hint_t - describes extension, name, max size, enable by default, etc.
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file_enable_t list_file_enable[] - array with all file hints and whether enabled or not.
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phmain.c - Contains the main() and driver logic for photorec.
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main():
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- reads parameters
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- scans for available devices
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- parses the HD (or image)
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- resets the list of which file carvers are enabled
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- Initializes ncurses
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- Calls do_curses_photorec() (in pdisksel.c)
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- shuts down ncurses
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pdiskseln.c -
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int do_curses_photorec(struct ph_param *params, struct ph_options *options, const list_disk_t *list_disk)
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- Implements Disk selection
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- May call photorec_disk_selection_ncurses()
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- Eventually call menu_photorec() in ppartseln.c
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ppartseln.c -
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void menu_photorec(struct ph_param *params, struct ph_options *options, alloc_data_t*list_search_space)
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- Implements Partition selection and Search/Options/File Opt/Geometry/Quit menu
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- Search Option call photorec()
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phrecn.c -
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int photorec(struct ph_param *params, const struct ph_options *options, alloc_data_t *list_search_space)
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- runs multiple passes until status==STATUS_QUIT
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- calls photorec_mkdir() to actually make the output directory
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- calls photorec_find_blocksize() to find the block size
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- calls photorec_aux() to do the recovery
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- may call photorec_bf() to recover more files by brute-force method
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src/psearchn.c -
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pstatus_t photorec_aux(struct ph_param *params, const struct ph_options *options, alloc_data_t *list_search_space)
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- calls file_finish2() when recovery of a file is finished (ie. a new file has been found)
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- calls file_recovery_aborted() if the user stops the recovery or there is not enough space on the destination
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photorec.c: -
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int file_finish_bf(file_recovery_t *file_recovery, struct ph_param *params, alloc_data_t *list_search_space)
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- called when recovery of a file is done by
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- photorec_bf()
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- photorec_bf_pad()
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- photorec_bf_frag()
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- photorec_bf_aux()
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photorec.c
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pfstatus_t file_finish2(file_recovery_t *file_recovery, struct ph_param *params, const int paranoid, alloc_data_t *list_search_space)
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- called when a file is done by
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- photorec_aux() (in three places)
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