Add write function. Fix bug in PVD writing and dir. record len computation.
This commit is contained in:
Vreixo Formoso
parent
42731f4135
commit
d07fed1a4c
@ -65,8 +65,6 @@ static
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size_t calc_dir_size(Ecma119Image *t, Ecma119Node *dir)
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{
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size_t i, len;
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t->ndirs++;
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/* size of "." and ".." entries */
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len = 34 + 34;
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@ -89,6 +87,7 @@ void calc_dir_pos(Ecma119Image *t, Ecma119Node *dir)
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{
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size_t i, len;
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t->ndirs++;
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dir->info.dir.block = t->curblock;
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len = calc_dir_size(t, dir);
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t->curblock += div_up(len, BLOCK_SIZE);
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@ -119,6 +118,8 @@ int ecma119_writer_compute_data_blocks(IsoImageWriter *writer)
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calc_dir_pos(target, target->root);
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/* compute length of pathlist */
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// TODO we don't need to allocate here the pathlist, since for
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// len computation a simple recursion is good enought
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pathlist = calloc(1, sizeof(void*) * target->ndirs);
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if (pathlist == NULL) {
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return ISO_MEM_ERROR;
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@ -175,7 +176,7 @@ void write_one_dir_record(Ecma119Image *t, Ecma119Node *node, int file_id,
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struct ecma119_dir_record *rec = (struct ecma119_dir_record*)buf;
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len_dr = 33 + len_fi + (len_fi % 2);
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len_dr = 33 + len_fi + (len_fi % 2 ? 0 : 1);
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memcpy(rec->file_id, name, len_fi);
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@ -236,18 +237,20 @@ int ecma119_writer_write_vol_desc(IsoImageWriter *writer)
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t = writer->target;
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image = t->image;
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iso_msg_debug(image, "Write Primary Volume Descriptor");
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memset(&vol, 0, sizeof(struct ecma119_pri_vol_desc));
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str2d_char(t->input_charset, image->volume_id, &vol_id);
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str2a_char(t->input_charset, image->publisher_id, &pub_id);
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str2a_char(t->input_charset, image->data_preparer_id, &data_id);
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str2d_char(t->input_charset, image->volset_id, &volset_id);
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str2d_char(image->volume_id, t->input_charset, &vol_id);
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str2a_char(image->publisher_id, t->input_charset, &pub_id);
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str2a_char(image->data_preparer_id, t->input_charset, &data_id);
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str2d_char(image->volset_id, t->input_charset, &volset_id);
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str2a_char(image->system_id, t->input_charset, &system_id);
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str2a_char(image->application_id, t->input_charset, &application_id);
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str2d_char(image->copyright_file_id, t->input_charset, ©right_file_id);
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str2d_char(image->abstract_file_id, t->input_charset, &abstract_file_id);
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str2d_char(image->biblio_file_id, t->input_charset, &biblio_file_id);
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str2a_char(t->input_charset, image->system_id, &system_id);
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str2a_char(t->input_charset, image->application_id, &application_id);
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str2d_char(t->input_charset, image->copyright_file_id, ©right_file_id);
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str2d_char(t->input_charset, image->abstract_file_id, &abstract_file_id);
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str2d_char(t->input_charset, image->biblio_file_id, &biblio_file_id);
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vol.vol_desc_type[0] = 1;
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memcpy(vol.std_identifier, "CD001", 5);
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@ -330,7 +333,7 @@ int write_one_dir(Ecma119Image *t, Ecma119Node *dir)
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/* compute len of directory entry */
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fi_len = strlen(child->iso_name);
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len = fi_len + 33 + (fi_len % 2);
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len = fi_len + 33 + (fi_len % 2 ? 0 : 1);
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if (child->type == ECMA119_FILE && !t->omit_version_numbers) {
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len += 2;
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}
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@ -452,6 +455,7 @@ int write_path_tables(Ecma119Image *t)
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Ecma119Node *dir = pathlist[i];
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for (j = 0; j < dir->info.dir.nchildren; j++) {
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Ecma119Node *child = dir->info.dir.children[j];
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//iso_msg_debug(t->image, " bbbbbbbbbb %d %s", j, dir->node->name);
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if (child->type == ECMA119_DIR) {
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pathlist[cur++] = child;
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}
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@ -536,6 +540,67 @@ int ecma119_writer_create(Ecma119Image *target)
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return ISO_SUCCESS;
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}
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static
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void write_function(Ecma119Image *target)
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{
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int res;
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size_t i;
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uint8_t buf[BLOCK_SIZE];
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IsoImageWriter *writer;
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iso_msg_debug(target->image, "Starting image writing...");
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/* Write System Area, 16 blocks of zeros (ECMA-119, 6.2.1) */
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memset(buf, 0, BLOCK_SIZE);
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for (i = 0; i < 16; ++i) {
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res = iso_write(target, buf, BLOCK_SIZE);
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if (res < 0) {
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goto write_error;
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}
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}
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/* write volume descriptors, one per writer */
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iso_msg_debug(target->image, "Write volume descriptors");
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for (i = 0; i < target->nwriters; ++i) {
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writer = target->writers[i];
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res = writer->write_vol_desc(writer);
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if (res < 0) {
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goto write_error;
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}
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}
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/* write Volume Descriptor Set Terminator (ECMA-119, 8.3) */
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{
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struct ecma119_vol_desc_terminator *vol;
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vol = (struct ecma119_vol_desc_terminator *) buf;
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vol->vol_desc_type[0] = 255;
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memcpy(vol->std_identifier, "CD001", 5);
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vol->vol_desc_version[0] = 1;
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res = iso_write(target, buf, BLOCK_SIZE);
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if (res < 0) {
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goto write_error;
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}
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}
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/* write data for each writer */
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for (i = 0; i < target->nwriters; ++i) {
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writer = target->writers[i];
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res = writer->write_data(writer);
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if (res < 0) {
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goto write_error;
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}
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}
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return;
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write_error:;
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iso_msg_fatal(target->image, LIBISO_WRITE_ERROR,
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"Image write error, code %d", res);
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return;
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}
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static
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int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
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Ecma119Image **img)
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@ -621,10 +686,8 @@ int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
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target->total_size = (target->curblock - target->ms_block) * BLOCK_SIZE;
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target->vol_space_size = target->curblock - target->ms_block;
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/* 4. Start writting thread */
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//write_function(target);
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*img = target;
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return ISO_SUCCESS;
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@ -144,12 +144,21 @@ struct ecma119_dir_record
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/* ECMA-119, 9.4 */
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struct ecma119_path_table_record
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{
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uint8_t len_di BP(1, 1);
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uint8_t len_xa BP(2, 2);
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uint8_t block BP(3, 6);
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uint8_t parent BP(7, 8);
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uint8_t dir_id BP(9, 9); /* 9 to 8+len_di */
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uint8_t len_di BP(1, 1);
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uint8_t len_xa BP(2, 2);
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uint8_t block BP(3, 6);
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uint8_t parent BP(7, 8);
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uint8_t dir_id BP(9, 9); /* 9 to 8+len_di */
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/* padding field (if len_di is odd) */
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};
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/* ECMA-119, 8.3 */
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struct ecma119_vol_desc_terminator
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{
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uint8_t vol_desc_type BP(1, 1);
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uint8_t std_identifier BP(2, 6);
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uint8_t vol_desc_version BP(7, 7);
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uint8_t reserved BP(8, 2048);
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};
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#endif /*LIBISO_ECMA119_H_*/
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@ -220,6 +220,8 @@ int filesrc_writer_write_data(IsoImageWriter *writer)
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t = writer->target;
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filelist = writer->data;
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iso_msg_debug(t->image, "Writing Files...");
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nfiles = iso_rbtree_get_size(t->files);
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for (i = 0; i < nfiles; ++i) {
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IsoFileSrc *file = filelist[i];
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@ -385,6 +385,7 @@ Range "vreixo" : 0x00030000 to 0x0003ffff
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Image creation:
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0x00030100 (NOTE,MEDIUM) = File cannot be added to image (ignored)
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0x00030101 (NOTE,MEDIUM) = File cannot be writing to image (ignored)
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0x00030102 (FATAL,HIGH) = Write error
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General:
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0x00031001 (SORRY,HIGH) = Cannot read file (ignored)
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@ -19,6 +19,9 @@
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#define LIBISO_FILE_IGNORED 0x00030100
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/** File cannot be writing to image (ignored) */
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#define LIBISO_FILE_CANT_WRITE 0x00030101
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/** Write error */
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#define LIBISO_WRITE_ERROR 0x00030102
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/** Can't read file (ignored) */
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#define LIBISO_CANT_READ_FILE 0x00031001
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