New API call iso_file_add_zisofs_filter() (needs -lz and <zlib.h>).
This does not produce ZF entries yet but filtered file content already suits mkzftree -uF
This commit is contained in:
@ -811,7 +811,10 @@ struct IsoStream_Iface
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/**
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* Attempts to read up to count bytes from the given stream into
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* the buffer starting at buf.
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* the buffer starting at buf. The implementation has to make sure that
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* either the full desired count of bytes is delivered or that the
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* next call to this function will return EOF or error.
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* I.e. only the last read block may be shorter than parameter count.
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*
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* The stream must be open() before calling this, and close() when no
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* more needed.
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@ -4085,251 +4088,6 @@ void iso_stream_get_id(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
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char *iso_stream_get_source_path(IsoStream *stream, int flag);
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/************ Error codes and return values for libisofs ********************/
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/** successfully execution */
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#define ISO_SUCCESS 1
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/**
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* special return value, it could be or not an error depending on the
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* context.
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*/
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#define ISO_NONE 0
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/** Operation canceled (FAILURE,HIGH, -1) */
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#define ISO_CANCELED 0xE830FFFF
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/** Unknown or unexpected fatal error (FATAL,HIGH, -2) */
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#define ISO_FATAL_ERROR 0xF030FFFE
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/** Unknown or unexpected error (FAILURE,HIGH, -3) */
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#define ISO_ERROR 0xE830FFFD
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/** Internal programming error. Please report this bug (FATAL,HIGH, -4) */
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#define ISO_ASSERT_FAILURE 0xF030FFFC
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/**
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* NULL pointer as value for an arg. that doesn't allow NULL (FAILURE,HIGH, -5)
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*/
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#define ISO_NULL_POINTER 0xE830FFFB
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/** Memory allocation error (FATAL,HIGH, -6) */
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#define ISO_OUT_OF_MEM 0xF030FFFA
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/** Interrupted by a signal (FATAL,HIGH, -7) */
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#define ISO_INTERRUPTED 0xF030FFF9
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/** Invalid parameter value (FAILURE,HIGH, -8) */
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#define ISO_WRONG_ARG_VALUE 0xE830FFF8
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/** Can't create a needed thread (FATAL,HIGH, -9) */
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#define ISO_THREAD_ERROR 0xF030FFF7
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/** Write error (FAILURE,HIGH, -10) */
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#define ISO_WRITE_ERROR 0xE830FFF6
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/** Buffer read error (FAILURE,HIGH, -11) */
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#define ISO_BUF_READ_ERROR 0xE830FFF5
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/** Trying to add to a dir a node already added to a dir (FAILURE,HIGH, -64) */
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#define ISO_NODE_ALREADY_ADDED 0xE830FFC0
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/** Node with same name already exists (FAILURE,HIGH, -65) */
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#define ISO_NODE_NAME_NOT_UNIQUE 0xE830FFBF
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/** Trying to remove a node that was not added to dir (FAILURE,HIGH, -65) */
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#define ISO_NODE_NOT_ADDED_TO_DIR 0xE830FFBE
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/** A requested node does not exist (FAILURE,HIGH, -66) */
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#define ISO_NODE_DOESNT_EXIST 0xE830FFBD
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/**
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* Try to set the boot image of an already bootable image (FAILURE,HIGH, -67)
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*/
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#define ISO_IMAGE_ALREADY_BOOTABLE 0xE830FFBC
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/** Trying to use an invalid file as boot image (FAILURE,HIGH, -68) */
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#define ISO_BOOT_IMAGE_NOT_VALID 0xE830FFBB
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/**
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* Error on file operation (FAILURE,HIGH, -128)
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* (take a look at more specified error codes below)
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*/
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#define ISO_FILE_ERROR 0xE830FF80
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/** Trying to open an already opened file (FAILURE,HIGH, -129) */
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#define ISO_FILE_ALREADY_OPENED 0xE830FF7F
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/* @deprecated use ISO_FILE_ALREADY_OPENED instead */
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#define ISO_FILE_ALREADY_OPENNED 0xE830FF7F
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/** Access to file is not allowed (FAILURE,HIGH, -130) */
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#define ISO_FILE_ACCESS_DENIED 0xE830FF7E
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/** Incorrect path to file (FAILURE,HIGH, -131) */
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#define ISO_FILE_BAD_PATH 0xE830FF7D
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/** The file does not exist in the filesystem (FAILURE,HIGH, -132) */
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#define ISO_FILE_DOESNT_EXIST 0xE830FF7C
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/** Trying to read or close a file not openned (FAILURE,HIGH, -133) */
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#define ISO_FILE_NOT_OPENED 0xE830FF7B
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/* @deprecated use ISO_FILE_NOT_OPENED instead */
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#define ISO_FILE_NOT_OPENNED ISO_FILE_NOT_OPENED
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/** Directory used where no dir is expected (FAILURE,HIGH, -134) */
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#define ISO_FILE_IS_DIR 0xE830FF7A
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/** Read error (FAILURE,HIGH, -135) */
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#define ISO_FILE_READ_ERROR 0xE830FF79
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/** Not dir used where a dir is expected (FAILURE,HIGH, -136) */
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#define ISO_FILE_IS_NOT_DIR 0xE830FF78
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/** Not symlink used where a symlink is expected (FAILURE,HIGH, -137) */
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#define ISO_FILE_IS_NOT_SYMLINK 0xE830FF77
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/** Can't seek to specified location (FAILURE,HIGH, -138) */
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#define ISO_FILE_SEEK_ERROR 0xE830FF76
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/** File not supported in ECMA-119 tree and thus ignored (WARNING,MEDIUM, -139) */
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#define ISO_FILE_IGNORED 0xD020FF75
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/* A file is bigger than supported by used standard (WARNING,MEDIUM, -140) */
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#define ISO_FILE_TOO_BIG 0xD020FF74
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/* File read error during image creation (MISHAP,HIGH, -141) */
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#define ISO_FILE_CANT_WRITE 0xE430FF73
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/* Can't convert filename to requested charset (WARNING,MEDIUM, -142) */
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#define ISO_FILENAME_WRONG_CHARSET 0xD020FF72
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/* This was once a HINT. Deprecated now. */
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#define ISO_FILENAME_WRONG_CHARSET_OLD 0xC020FF72
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/* File can't be added to the tree (SORRY,HIGH, -143) */
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#define ISO_FILE_CANT_ADD 0xE030FF71
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/**
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* File path break specification constraints and will be ignored
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* (WARNING,MEDIUM, -144)
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*/
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#define ISO_FILE_IMGPATH_WRONG 0xD020FF70
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/**
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* Offset greater than file size (FAILURE,HIGH, -145)
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* @since 0.6.4
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*/
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#define ISO_FILE_OFFSET_TOO_BIG 0xE830FF6A
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/** Charset conversion error (FAILURE,HIGH, -256) */
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#define ISO_CHARSET_CONV_ERROR 0xE830FF00
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/**
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* Too many files to mangle, i.e. we cannot guarantee unique file names
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* (FAILURE,HIGH, -257)
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*/
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#define ISO_MANGLE_TOO_MUCH_FILES 0xE830FEFF
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/* image related errors */
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/**
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* Wrong or damaged Primary Volume Descriptor (FAILURE,HIGH, -320)
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* This could mean that the file is not a valid ISO image.
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*/
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#define ISO_WRONG_PVD 0xE830FEC0
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/** Wrong or damaged RR entry (SORRY,HIGH, -321) */
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#define ISO_WRONG_RR 0xE030FEBF
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/** Unsupported RR feature (SORRY,HIGH, -322) */
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#define ISO_UNSUPPORTED_RR 0xE030FEBE
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/** Wrong or damaged ECMA-119 (FAILURE,HIGH, -323) */
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#define ISO_WRONG_ECMA119 0xE830FEBD
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/** Unsupported ECMA-119 feature (FAILURE,HIGH, -324) */
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#define ISO_UNSUPPORTED_ECMA119 0xE830FEBC
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/** Wrong or damaged El-Torito catalog (SORRY,HIGH, -325) */
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#define ISO_WRONG_EL_TORITO 0xE030FEBB
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/** Unsupported El-Torito feature (SORRY,HIGH, -326) */
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#define ISO_UNSUPPORTED_EL_TORITO 0xE030FEBA
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/** Can't patch an isolinux boot image (SORRY,HIGH, -327) */
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#define ISO_ISOLINUX_CANT_PATCH 0xE030FEB9
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/** Unsupported SUSP feature (SORRY,HIGH, -328) */
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#define ISO_UNSUPPORTED_SUSP 0xE030FEB8
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/** Error on a RR entry that can be ignored (WARNING,HIGH, -329) */
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#define ISO_WRONG_RR_WARN 0xD030FEB7
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/** Error on a RR entry that can be ignored (HINT,MEDIUM, -330) */
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#define ISO_SUSP_UNHANDLED 0xC020FEB6
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/** Multiple ER SUSP entries found (WARNING,HIGH, -331) */
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#define ISO_SUSP_MULTIPLE_ER 0xD030FEB5
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/** Unsupported volume descriptor found (HINT,MEDIUM, -332) */
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#define ISO_UNSUPPORTED_VD 0xC020FEB4
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/** El-Torito related warning (WARNING,HIGH, -333) */
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#define ISO_EL_TORITO_WARN 0xD030FEB3
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/** Image write cancelled (MISHAP,HIGH, -334) */
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#define ISO_IMAGE_WRITE_CANCELED 0xE430FEB2
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/** El-Torito image is hidden (WARNING,HIGH, -335) */
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#define ISO_EL_TORITO_HIDDEN 0xD030FEB1
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/** Read error occured with IsoDataSource (SORRY,HIGH, -513) */
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#define ISO_DATA_SOURCE_SORRY 0xE030FCFF
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/** Read error occured with IsoDataSource (MISHAP,HIGH, -513) */
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#define ISO_DATA_SOURCE_MISHAP 0xE430FCFF
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/** Read error occured with IsoDataSource (FAILURE,HIGH, -513) */
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#define ISO_DATA_SOURCE_FAILURE 0xE830FCFF
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/** Read error occured with IsoDataSource (FATAL,HIGH, -513) */
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#define ISO_DATA_SOURCE_FATAL 0xF030FCFF
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/** AAIP info with ACL or xattr in ISO image will be ignored
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(NOTE, HIGH, -336) */
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#define ISO_AAIP_IGNORED 0xB030FEB0
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/** Error with decoding ACL from AAIP info (FAILURE, HIGH, -337) */
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#define ISO_AAIP_BAD_ACL 0xE830FEAF
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/** Error with encoding ACL for AAIP (FAILURE, HIGH, -338) */
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#define ISO_AAIP_BAD_ACL_TEXT 0xE830FEAE
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/** AAIP processing for ACL or xattr not enabled at compile time
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(FAILURE, HIGH, -339) */
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#define ISO_AAIP_NOT_ENABLED 0xE830FEAD
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/** Error with decoding AAIP info for ACL or xattr (FAILURE, HIGH, -340) */
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#define ISO_AAIP_BAD_AASTRING 0xE830FEAC
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/** Error with reading ACL or xattr from local file (FAILURE, HIGH, -341) */
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#define ISO_AAIP_NO_GET_LOCAL 0xE830FEAB
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/** Error with attaching ACL or xattr to local file (FAILURE, HIGH, -342) */
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#define ISO_AAIP_NO_SET_LOCAL 0xE830FEAA
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/** Unallowed attempt to set an xattr with non-userspace name
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(FAILURE, HIGH, -343) */
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#define ISO_AAIP_NON_USER_NAME 0xE830FEA9
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/* ts A90325 */
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/** Too many references on a single IsoExternalFilterCommand
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(FAILURE, HIGH, -344) */
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#define ISO_EXTF_TOO_OFTEN 0xE830FEA8
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/* --------------------------------- AAIP --------------------------------- */
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/**
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@ -4694,6 +4452,320 @@ int iso_local_set_attrs(char *disk_path, size_t num_attrs, char **names,
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size_t *value_lengths, char **values, int flag);
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/************ Error codes and return values for libisofs ********************/
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/** successfully execution */
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#define ISO_SUCCESS 1
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/**
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* special return value, it could be or not an error depending on the
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* context.
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*/
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#define ISO_NONE 0
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/** Operation canceled (FAILURE,HIGH, -1) */
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#define ISO_CANCELED 0xE830FFFF
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/** Unknown or unexpected fatal error (FATAL,HIGH, -2) */
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#define ISO_FATAL_ERROR 0xF030FFFE
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/** Unknown or unexpected error (FAILURE,HIGH, -3) */
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#define ISO_ERROR 0xE830FFFD
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/** Internal programming error. Please report this bug (FATAL,HIGH, -4) */
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#define ISO_ASSERT_FAILURE 0xF030FFFC
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/**
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* NULL pointer as value for an arg. that doesn't allow NULL (FAILURE,HIGH, -5)
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*/
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#define ISO_NULL_POINTER 0xE830FFFB
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/** Memory allocation error (FATAL,HIGH, -6) */
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#define ISO_OUT_OF_MEM 0xF030FFFA
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/** Interrupted by a signal (FATAL,HIGH, -7) */
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#define ISO_INTERRUPTED 0xF030FFF9
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/** Invalid parameter value (FAILURE,HIGH, -8) */
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#define ISO_WRONG_ARG_VALUE 0xE830FFF8
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/** Can't create a needed thread (FATAL,HIGH, -9) */
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#define ISO_THREAD_ERROR 0xF030FFF7
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/** Write error (FAILURE,HIGH, -10) */
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#define ISO_WRITE_ERROR 0xE830FFF6
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/** Buffer read error (FAILURE,HIGH, -11) */
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#define ISO_BUF_READ_ERROR 0xE830FFF5
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/** Trying to add to a dir a node already added to a dir (FAILURE,HIGH, -64) */
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#define ISO_NODE_ALREADY_ADDED 0xE830FFC0
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/** Node with same name already exists (FAILURE,HIGH, -65) */
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#define ISO_NODE_NAME_NOT_UNIQUE 0xE830FFBF
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/** Trying to remove a node that was not added to dir (FAILURE,HIGH, -65) */
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#define ISO_NODE_NOT_ADDED_TO_DIR 0xE830FFBE
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/** A requested node does not exist (FAILURE,HIGH, -66) */
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#define ISO_NODE_DOESNT_EXIST 0xE830FFBD
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/**
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* Try to set the boot image of an already bootable image (FAILURE,HIGH, -67)
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*/
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#define ISO_IMAGE_ALREADY_BOOTABLE 0xE830FFBC
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/** Trying to use an invalid file as boot image (FAILURE,HIGH, -68) */
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#define ISO_BOOT_IMAGE_NOT_VALID 0xE830FFBB
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/**
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* Error on file operation (FAILURE,HIGH, -128)
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* (take a look at more specified error codes below)
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*/
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#define ISO_FILE_ERROR 0xE830FF80
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/** Trying to open an already opened file (FAILURE,HIGH, -129) */
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#define ISO_FILE_ALREADY_OPENED 0xE830FF7F
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/* @deprecated use ISO_FILE_ALREADY_OPENED instead */
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#define ISO_FILE_ALREADY_OPENNED 0xE830FF7F
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/** Access to file is not allowed (FAILURE,HIGH, -130) */
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#define ISO_FILE_ACCESS_DENIED 0xE830FF7E
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/** Incorrect path to file (FAILURE,HIGH, -131) */
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#define ISO_FILE_BAD_PATH 0xE830FF7D
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/** The file does not exist in the filesystem (FAILURE,HIGH, -132) */
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#define ISO_FILE_DOESNT_EXIST 0xE830FF7C
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/** Trying to read or close a file not openned (FAILURE,HIGH, -133) */
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#define ISO_FILE_NOT_OPENED 0xE830FF7B
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/* @deprecated use ISO_FILE_NOT_OPENED instead */
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#define ISO_FILE_NOT_OPENNED ISO_FILE_NOT_OPENED
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/** Directory used where no dir is expected (FAILURE,HIGH, -134) */
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#define ISO_FILE_IS_DIR 0xE830FF7A
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/** Read error (FAILURE,HIGH, -135) */
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#define ISO_FILE_READ_ERROR 0xE830FF79
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/** Not dir used where a dir is expected (FAILURE,HIGH, -136) */
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#define ISO_FILE_IS_NOT_DIR 0xE830FF78
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/** Not symlink used where a symlink is expected (FAILURE,HIGH, -137) */
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#define ISO_FILE_IS_NOT_SYMLINK 0xE830FF77
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/** Can't seek to specified location (FAILURE,HIGH, -138) */
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#define ISO_FILE_SEEK_ERROR 0xE830FF76
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/** File not supported in ECMA-119 tree and thus ignored (WARNING,MEDIUM, -139) */
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#define ISO_FILE_IGNORED 0xD020FF75
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/* A file is bigger than supported by used standard (WARNING,MEDIUM, -140) */
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#define ISO_FILE_TOO_BIG 0xD020FF74
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/* File read error during image creation (MISHAP,HIGH, -141) */
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#define ISO_FILE_CANT_WRITE 0xE430FF73
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/* Can't convert filename to requested charset (WARNING,MEDIUM, -142) */
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#define ISO_FILENAME_WRONG_CHARSET 0xD020FF72
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/* This was once a HINT. Deprecated now. */
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#define ISO_FILENAME_WRONG_CHARSET_OLD 0xC020FF72
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/* File can't be added to the tree (SORRY,HIGH, -143) */
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#define ISO_FILE_CANT_ADD 0xE030FF71
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/**
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* File path break specification constraints and will be ignored
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* (WARNING,MEDIUM, -144)
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*/
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#define ISO_FILE_IMGPATH_WRONG 0xD020FF70
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/**
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* Offset greater than file size (FAILURE,HIGH, -145)
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* @since 0.6.4
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*/
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#define ISO_FILE_OFFSET_TOO_BIG 0xE830FF6A
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/** Charset conversion error (FAILURE,HIGH, -256) */
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#define ISO_CHARSET_CONV_ERROR 0xE830FF00
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/**
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* Too many files to mangle, i.e. we cannot guarantee unique file names
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* (FAILURE,HIGH, -257)
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*/
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#define ISO_MANGLE_TOO_MUCH_FILES 0xE830FEFF
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/* image related errors */
|
||||
|
||||
/**
|
||||
* Wrong or damaged Primary Volume Descriptor (FAILURE,HIGH, -320)
|
||||
* This could mean that the file is not a valid ISO image.
|
||||
*/
|
||||
#define ISO_WRONG_PVD 0xE830FEC0
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/** Wrong or damaged RR entry (SORRY,HIGH, -321) */
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#define ISO_WRONG_RR 0xE030FEBF
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/** Unsupported RR feature (SORRY,HIGH, -322) */
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#define ISO_UNSUPPORTED_RR 0xE030FEBE
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/** Wrong or damaged ECMA-119 (FAILURE,HIGH, -323) */
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#define ISO_WRONG_ECMA119 0xE830FEBD
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/** Unsupported ECMA-119 feature (FAILURE,HIGH, -324) */
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#define ISO_UNSUPPORTED_ECMA119 0xE830FEBC
|
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|
||||
/** Wrong or damaged El-Torito catalog (SORRY,HIGH, -325) */
|
||||
#define ISO_WRONG_EL_TORITO 0xE030FEBB
|
||||
|
||||
/** Unsupported El-Torito feature (SORRY,HIGH, -326) */
|
||||
#define ISO_UNSUPPORTED_EL_TORITO 0xE030FEBA
|
||||
|
||||
/** Can't patch an isolinux boot image (SORRY,HIGH, -327) */
|
||||
#define ISO_ISOLINUX_CANT_PATCH 0xE030FEB9
|
||||
|
||||
/** Unsupported SUSP feature (SORRY,HIGH, -328) */
|
||||
#define ISO_UNSUPPORTED_SUSP 0xE030FEB8
|
||||
|
||||
/** Error on a RR entry that can be ignored (WARNING,HIGH, -329) */
|
||||
#define ISO_WRONG_RR_WARN 0xD030FEB7
|
||||
|
||||
/** Error on a RR entry that can be ignored (HINT,MEDIUM, -330) */
|
||||
#define ISO_SUSP_UNHANDLED 0xC020FEB6
|
||||
|
||||
/** Multiple ER SUSP entries found (WARNING,HIGH, -331) */
|
||||
#define ISO_SUSP_MULTIPLE_ER 0xD030FEB5
|
||||
|
||||
/** Unsupported volume descriptor found (HINT,MEDIUM, -332) */
|
||||
#define ISO_UNSUPPORTED_VD 0xC020FEB4
|
||||
|
||||
/** El-Torito related warning (WARNING,HIGH, -333) */
|
||||
#define ISO_EL_TORITO_WARN 0xD030FEB3
|
||||
|
||||
/** Image write cancelled (MISHAP,HIGH, -334) */
|
||||
#define ISO_IMAGE_WRITE_CANCELED 0xE430FEB2
|
||||
|
||||
/** El-Torito image is hidden (WARNING,HIGH, -335) */
|
||||
#define ISO_EL_TORITO_HIDDEN 0xD030FEB1
|
||||
|
||||
/** Read error occured with IsoDataSource (SORRY,HIGH, -513) */
|
||||
#define ISO_DATA_SOURCE_SORRY 0xE030FCFF
|
||||
|
||||
/** Read error occured with IsoDataSource (MISHAP,HIGH, -513) */
|
||||
#define ISO_DATA_SOURCE_MISHAP 0xE430FCFF
|
||||
|
||||
/** Read error occured with IsoDataSource (FAILURE,HIGH, -513) */
|
||||
#define ISO_DATA_SOURCE_FAILURE 0xE830FCFF
|
||||
|
||||
/** Read error occured with IsoDataSource (FATAL,HIGH, -513) */
|
||||
#define ISO_DATA_SOURCE_FATAL 0xF030FCFF
|
||||
|
||||
|
||||
/** AAIP info with ACL or xattr in ISO image will be ignored
|
||||
(NOTE, HIGH, -336) */
|
||||
#define ISO_AAIP_IGNORED 0xB030FEB0
|
||||
|
||||
/** Error with decoding ACL from AAIP info (FAILURE, HIGH, -337) */
|
||||
#define ISO_AAIP_BAD_ACL 0xE830FEAF
|
||||
|
||||
/** Error with encoding ACL for AAIP (FAILURE, HIGH, -338) */
|
||||
#define ISO_AAIP_BAD_ACL_TEXT 0xE830FEAE
|
||||
|
||||
/** AAIP processing for ACL or xattr not enabled at compile time
|
||||
(FAILURE, HIGH, -339) */
|
||||
#define ISO_AAIP_NOT_ENABLED 0xE830FEAD
|
||||
|
||||
/** Error with decoding AAIP info for ACL or xattr (FAILURE, HIGH, -340) */
|
||||
#define ISO_AAIP_BAD_AASTRING 0xE830FEAC
|
||||
|
||||
/** Error with reading ACL or xattr from local file (FAILURE, HIGH, -341) */
|
||||
#define ISO_AAIP_NO_GET_LOCAL 0xE830FEAB
|
||||
|
||||
/** Error with attaching ACL or xattr to local file (FAILURE, HIGH, -342) */
|
||||
#define ISO_AAIP_NO_SET_LOCAL 0xE830FEAA
|
||||
|
||||
/** Unallowed attempt to set an xattr with non-userspace name
|
||||
(FAILURE, HIGH, -343) */
|
||||
#define ISO_AAIP_NON_USER_NAME 0xE830FEA9
|
||||
|
||||
/* ts A90325 */
|
||||
/** Too many references on a single IsoExternalFilterCommand
|
||||
(FAILURE, HIGH, -344) */
|
||||
#define ISO_EXTF_TOO_OFTEN 0xE830FEA8
|
||||
|
||||
/* ts A90409 */
|
||||
/** Use of zlib was not enabled at compile time (FAILURE, HIGH, -345) */
|
||||
#define ISO_ZLIB_NOT_ENABLED 0xE830FEA7
|
||||
|
||||
/* ts A90409 */
|
||||
/** Cannot apply zisofs filter to file >= 4 GiB (FAILURE, HIGH, -346) */
|
||||
#define ISO_ZISOFS_TOO_LARGE 0xE830FEA6
|
||||
|
||||
|
||||
/* --------------------------- Filters in General -------------------------- */
|
||||
|
||||
/*
|
||||
* A filter is an IsoStreams which uses another IsoStream as input. It gets
|
||||
* attached to an IsoFile by specialized calls iso_file_add_*_filter() which
|
||||
* replace its current IsoStream by the filter stream which takes over the
|
||||
* current IsoStream as input.
|
||||
* The consequences are:
|
||||
* iso_file_get_stream() will return the filter stream.
|
||||
* iso_stream_get_size() will return the (cached) size of the filtered data,
|
||||
* iso_stream_open() will start eventual child processes,
|
||||
* iso_stream_close() will kill eventual child processes,
|
||||
* iso_stream_read() will return filtered data. E.g. as data file content
|
||||
* during ISO image generation.
|
||||
*
|
||||
* There are external filters which run child processes
|
||||
* iso_file_add_external_filter()
|
||||
* and internal filters
|
||||
* iso_file_add_zisofs_filter()
|
||||
* which may or may not be available depending on compile time settings and
|
||||
* installed software packages like libz.
|
||||
*/
|
||||
|
||||
/* ts A90328 */
|
||||
/**
|
||||
* Delete the top filter stream from a data file. This is the most recent one
|
||||
* which was added by iso_file_add_*_filter().
|
||||
* Caution: One should not do this while the IsoStream of the file is opened.
|
||||
* For now there is no general way to determine this state.
|
||||
* Filter stream implementations are urged to eventually call .close()
|
||||
* inside method .free() . This will close the input stream too.
|
||||
* @param file
|
||||
* The data file node which shall get rid of one layer of content
|
||||
* filtering.
|
||||
* @param flag
|
||||
* Bitfield for control purposes, unused yet, submit 0.
|
||||
* @return
|
||||
* 1 on success, 0 if no filter was present
|
||||
* <0 on error
|
||||
*
|
||||
* @since 0.6.18
|
||||
*/
|
||||
int iso_file_remove_filter(IsoFile *file, int flag);
|
||||
|
||||
|
||||
/* ts A90328 */
|
||||
/**
|
||||
* Obtain the eventual input stream of a filter stream.
|
||||
* @param stream
|
||||
* The eventual filter stream to be inquired.
|
||||
* @param flag
|
||||
* Bitfield for control purposes. Submit 0 for now.
|
||||
* @return
|
||||
* The input stream, if one exists. Elsewise NULL.
|
||||
* No extra reference to the stream is taken by this call.
|
||||
*
|
||||
* @since 0.6.18
|
||||
*/
|
||||
IsoStream *iso_stream_get_input_stream(IsoStream *stream, int flag);
|
||||
|
||||
|
||||
/* ---------------------------- External Filters --------------------------- */
|
||||
|
||||
/* ts A90325 */
|
||||
@ -4769,13 +4841,6 @@ typedef struct iso_external_filter_command IsoExternalFilterCommand;
|
||||
* Install an external filter command on top of the content stream of a data
|
||||
* file. The filter process must be repeatable. It will be run once by this
|
||||
* call in order to cache the output size.
|
||||
* This call creates a new IsoStream which uses the existing IsoStream of the
|
||||
* data file as input.
|
||||
* iso_file_get_stream() will return the filter stream.
|
||||
* iso_stream_get_size() will return the cached size of the filtered data,
|
||||
* iso_stream_open() will start again the external filter process,
|
||||
* iso_stream_close() will kill it,
|
||||
* iso_stream_read() will return filtered data.
|
||||
* @param file
|
||||
* The data file node which shall show filtered content.
|
||||
* @param cmd
|
||||
@ -4791,43 +4856,6 @@ typedef struct iso_external_filter_command IsoExternalFilterCommand;
|
||||
int iso_file_add_external_filter(IsoFile *file, IsoExternalFilterCommand *cmd,
|
||||
int flag);
|
||||
|
||||
/* ts A90328 */
|
||||
/**
|
||||
* Delete the top filter stream from a data file. This is the most recent one
|
||||
* which was added by iso_file_add_*_filter().
|
||||
* Caution: One should not do this while the IsoStream of the file is opened.
|
||||
* For now there is no general way to determine this state.
|
||||
* Filter stream implementations are urged to eventually call .close()
|
||||
* inside method .free() . This will close the input stream too.
|
||||
* @param file
|
||||
* The data file node which shall get rid of one layer of content
|
||||
* filtering.
|
||||
* @param flag
|
||||
* Bitfield for control purposes, unused yet, submit 0.
|
||||
* @return
|
||||
* 1 on success, 0 if no filter was present
|
||||
* <0 on error
|
||||
*
|
||||
* @since 0.6.18
|
||||
*/
|
||||
int iso_file_remove_filter(IsoFile *file, int flag);
|
||||
|
||||
|
||||
/* ts A90328 */
|
||||
/**
|
||||
* Obtain the eventual input stream of a filter stream.
|
||||
* @param stream
|
||||
* The eventual filter stream to be inquired.
|
||||
* @param flag
|
||||
* Bitfield for control purposes. Submit 0 for now.
|
||||
* @return
|
||||
* The input stream, if one exists. Elsewise NULL.
|
||||
* No extra reference to the stream is taken by this call.
|
||||
*
|
||||
* @since 0.6.18
|
||||
*/
|
||||
IsoStream *iso_stream_get_input_stream(IsoStream *stream, int flag);
|
||||
|
||||
|
||||
/* ts A90402 */
|
||||
/**
|
||||
@ -4851,6 +4879,33 @@ int iso_stream_get_external_filter(IsoStream *stream,
|
||||
IsoExternalFilterCommand **cmd, int flag);
|
||||
|
||||
|
||||
/* ---------------------------- Internal Filters --------------------------- */
|
||||
|
||||
|
||||
/* ts A90409 */
|
||||
/**
|
||||
* Install a zisofs filter on top of the content stream of a data * file.
|
||||
* zisofs is a compression format which is decompressed by some Linux kernels.
|
||||
* See also doc/zisofs_format.txt .
|
||||
* The filter will not be installed if its output size is not smaller than
|
||||
* the size of the input stream.
|
||||
* This is only enabled if the use of libz was enabled at compile time.
|
||||
* @param file
|
||||
* The data file node which shall show filtered content.
|
||||
* @param flag
|
||||
* Bitfield for control purposes
|
||||
* bit0= Do not install filter if the number of output blocks is
|
||||
* not smaller than the number of input blocks. Block size is 2048.
|
||||
* bit1= Install a decompression filter rather than one for compression.
|
||||
* @return
|
||||
* 1 on success, 2 if filter installation revoked
|
||||
* <0 on error, e.g. ISO_ZLIB_NOT_ENABLED
|
||||
*
|
||||
* @since 0.6.18
|
||||
*/
|
||||
int iso_file_add_zisofs_filter(IsoFile *file, int flag);
|
||||
|
||||
|
||||
/* ------------------------------------------------------------------------- */
|
||||
|
||||
#ifdef LIBISOFS_WITHOUT_LIBBURN
|
||||
|
||||
Reference in New Issue
Block a user