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New API calls iso_read_image_features_tree_loaded() and iso_read_image_features_rr_loaded()

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This commit is contained in:
Thomas Schmitt 2020-12-07 18:02:24 +01:00
parent 8f3ff65c04
commit 62411411db
3 changed files with 56 additions and 10 deletions
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44
libisofs/fs_image.c
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2009 - 2018 Thomas Schmitt
* Copyright (c) 2009 - 2020 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
@ -187,6 +187,16 @@ struct iso_read_image_features
/** It will be set to 1 if El-Torito boot record is present, to 0 if not.*/
unsigned int hasElTorito :1;
/**
* Which tree was loaded:
* 0= ISO 9660 + Rock Ridge , 1= Joliet , 2= ISO 9660:1999
*/
int tree_loaded;
/** Whether Rock Ridge info was used while loading: 0= no, 1= yes */
int rr_loaded;
};
static int ifs_fs_open(IsoImageFilesystem *fs);
@ -2898,6 +2908,7 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
free(data);
{ret = ISO_OUT_OF_MEM; goto ex;}
}
data->rr = RR_EXT_NO;
/* get our ref to IsoDataSource */
data->src = src;
@ -3068,16 +3079,11 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
} while (buffer[0] != 255);
/* 4. check if RR extensions are being used */
if (opts->norock) {
/* user doesn't want to read RR extensions */
data->rr = RR_EXT_NO;
} else {
ret = read_root_susp_entries(data, data->pvd_root_block);
if (ret < 0) {
if (ret < 0)
goto fs_cleanup;
}
if (!opts->norock)
data->rr = data->rr_version;
}
/* select what tree to read */
if (data->rr) {
@ -6099,6 +6105,12 @@ int iso_image_import(IsoImage *image, IsoDataSource *src,
(*features)->hasIso1999 = data->iso1999;
(*features)->hasElTorito = data->eltorito;
(*features)->size = data->nblocks;
(*features)->tree_loaded = 0;
if (data->iso_root_block == data->svd_root_block)
(*features)->tree_loaded = 1;
else if (data->iso_root_block == data->evd_root_block)
(*features)->tree_loaded = 2;
(*features)->rr_loaded = (data->rr != RR_EXT_NO);
}
if (data->md5_load) {
@ -6515,6 +6527,22 @@ int iso_read_image_features_has_eltorito(IsoReadImageFeatures *f)
return f->hasElTorito;
}
/**
* Tells what directory tree was loaded:
* 0= ISO 9660 , 1 = Joliet , 2 = ISO 9660:1999
*/
int iso_read_image_features_tree_loaded(IsoReadImageFeatures *f)
{
return f->tree_loaded;
}
/**
* Tells whether Rock Ridge information was used while loading the tree.
*/
int iso_read_image_features_rr_loaded(IsoReadImageFeatures *f)
{
return f->rr_loaded;
}
/**
* Get the start addresses and the sizes of the data extents of a file node

16
libisofs/libisofs.h
View File

@ -3277,6 +3277,22 @@ int iso_read_image_features_has_iso1999(IsoReadImageFeatures *f);
*/
int iso_read_image_features_has_eltorito(IsoReadImageFeatures *f);
/**
* Tells what directory tree was loaded:
* 0= ISO 9660 , 1 = Joliet , 2 = ISO 9660:1999
*
* @since 1.5.4
*/
int iso_read_image_features_tree_loaded(IsoReadImageFeatures *f);
/**
* Tells whether Rock Ridge information was used while loading the tree:
* 1= yes, 0= no
*
* @since 1.5.4
*/
int iso_read_image_features_rr_loaded(IsoReadImageFeatures *f);
/**
* Increments the reference counting of the given image.
*

2
libisofs/libisofs.ver
View File

@ -235,6 +235,8 @@ iso_read_image_features_has_eltorito;
iso_read_image_features_has_iso1999;
iso_read_image_features_has_joliet;
iso_read_image_features_has_rockridge;
iso_read_image_features_rr_loaded;
iso_read_image_features_tree_loaded;
iso_read_opts_auto_input_charset;
iso_read_opts_free;
iso_read_opts_keep_import_src;