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Add write function. Fix bug in PVD writing and dir. record len computation.

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release-1.5.4.branch
Vreixo Formoso 15 years ago
parent 42731f4135
commit d07fed1a4c
5 changed files with 100 additions and 22 deletions
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97
src/ecma119.c
Unescape Escape View File

@ -65,8 +65,6 @@ static
size_t calc_dir_size(Ecma119Image *t, Ecma119Node *dir)
{
size_t i, len;
t->ndirs++;
/* size of "." and ".." entries */
len = 34 + 34;
@ -89,6 +87,7 @@ void calc_dir_pos(Ecma119Image *t, Ecma119Node *dir)
{
size_t i, len;
t->ndirs++;
dir->info.dir.block = t->curblock;
len = calc_dir_size(t, dir);
t->curblock += div_up(len, BLOCK_SIZE);
@ -119,6 +118,8 @@ int ecma119_writer_compute_data_blocks(IsoImageWriter *writer)
calc_dir_pos(target, target->root);
/* compute length of pathlist */
// TODO we don't need to allocate here the pathlist, since for
// len computation a simple recursion is good enought
pathlist = calloc(1, sizeof(void*) * target->ndirs);
if (pathlist == NULL) {
return ISO_MEM_ERROR;
@ -175,7 +176,7 @@ void write_one_dir_record(Ecma119Image *t, Ecma119Node *node, int file_id,
struct ecma119_dir_record *rec = (struct ecma119_dir_record*)buf;
len_dr = 33 + len_fi + (len_fi % 2);
len_dr = 33 + len_fi + (len_fi % 2 ? 0 : 1);
memcpy(rec->file_id, name, len_fi);
@ -236,18 +237,20 @@ int ecma119_writer_write_vol_desc(IsoImageWriter *writer)
t = writer->target;
image = t->image;
memset(&vol, 0, sizeof(struct ecma119_pri_vol_desc));
iso_msg_debug(image, "Write Primary Volume Descriptor");
str2d_char(image->volume_id, t->input_charset, &vol_id);
str2a_char(image->publisher_id, t->input_charset, &pub_id);
str2a_char(image->data_preparer_id, t->input_charset, &data_id);
str2d_char(image->volset_id, t->input_charset, &volset_id);
memset(&vol, 0, sizeof(struct ecma119_pri_vol_desc));
str2d_char(t->input_charset, image->volume_id, &vol_id);
str2a_char(t->input_charset, image->publisher_id, &pub_id);
str2a_char(t->input_charset, image->data_preparer_id, &data_id);
str2d_char(t->input_charset, image->volset_id, &volset_id);
str2a_char(image->system_id, t->input_charset, &system_id);
str2a_char(image->application_id, t->input_charset, &application_id);
str2d_char(image->copyright_file_id, t->input_charset, &copyright_file_id);
str2d_char(image->abstract_file_id, t->input_charset, &abstract_file_id);
str2d_char(image->biblio_file_id, t->input_charset, &biblio_file_id);
str2a_char(t->input_charset, image->system_id, &system_id);
str2a_char(t->input_charset, image->application_id, &application_id);
str2d_char(t->input_charset, image->copyright_file_id, &copyright_file_id);
str2d_char(t->input_charset, image->abstract_file_id, &abstract_file_id);
str2d_char(t->input_charset, image->biblio_file_id, &biblio_file_id);
vol.vol_desc_type[0] = 1;
memcpy(vol.std_identifier, "CD001", 5);
@ -330,7 +333,7 @@ int write_one_dir(Ecma119Image *t, Ecma119Node *dir)
/* compute len of directory entry */
fi_len = strlen(child->iso_name);
len = fi_len + 33 + (fi_len % 2);
len = fi_len + 33 + (fi_len % 2 ? 0 : 1);
if (child->type == ECMA119_FILE && !t->omit_version_numbers) {
len += 2;
}
@ -452,6 +455,7 @@ int write_path_tables(Ecma119Image *t)
Ecma119Node *dir = pathlist[i];
for (j = 0; j < dir->info.dir.nchildren; j++) {
Ecma119Node *child = dir->info.dir.children[j];
//iso_msg_debug(t->image, " bbbbbbbbbb %d %s", j, dir->node->name);
if (child->type == ECMA119_DIR) {
pathlist[cur++] = child;
}
@ -536,6 +540,67 @@ int ecma119_writer_create(Ecma119Image *target)
return ISO_SUCCESS;
}
static
void write_function(Ecma119Image *target)
{
int res;
size_t i;
uint8_t buf[BLOCK_SIZE];
IsoImageWriter *writer;
iso_msg_debug(target->image, "Starting image writing...");
/* Write System Area, 16 blocks of zeros (ECMA-119, 6.2.1) */
memset(buf, 0, BLOCK_SIZE);
for (i = 0; i < 16; ++i) {
res = iso_write(target, buf, BLOCK_SIZE);
if (res < 0) {
goto write_error;
}
}
/* write volume descriptors, one per writer */
iso_msg_debug(target->image, "Write volume descriptors");
for (i = 0; i < target->nwriters; ++i) {
writer = target->writers[i];
res = writer->write_vol_desc(writer);
if (res < 0) {
goto write_error;
}
}
/* write Volume Descriptor Set Terminator (ECMA-119, 8.3) */
{
struct ecma119_vol_desc_terminator *vol;
vol = (struct ecma119_vol_desc_terminator *) buf;
vol->vol_desc_type[0] = 255;
memcpy(vol->std_identifier, "CD001", 5);
vol->vol_desc_version[0] = 1;
res = iso_write(target, buf, BLOCK_SIZE);
if (res < 0) {
goto write_error;
}
}
/* write data for each writer */
for (i = 0; i < target->nwriters; ++i) {
writer = target->writers[i];
res = writer->write_data(writer);
if (res < 0) {
goto write_error;
}
}
return;
write_error:;
iso_msg_fatal(target->image, LIBISO_WRITE_ERROR,
"Image write error, code %d", res);
return;
}
static
int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
Ecma119Image **img)
@ -621,10 +686,8 @@ int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
target->total_size = (target->curblock - target->ms_block) * BLOCK_SIZE;
target->vol_space_size = target->curblock - target->ms_block;
/* 4. Start writting thread */
//write_function(target);
*img = target;
return ISO_SUCCESS;

19
src/ecma119.h
Unescape Escape View File

@ -144,12 +144,21 @@ struct ecma119_dir_record
/* ECMA-119, 9.4 */
struct ecma119_path_table_record
{
uint8_t len_di BP(1, 1);
uint8_t len_xa BP(2, 2);
uint8_t block BP(3, 6);
uint8_t parent BP(7, 8);
uint8_t dir_id BP(9, 9); /* 9 to 8+len_di */
uint8_t len_di BP(1, 1);
uint8_t len_xa BP(2, 2);
uint8_t block BP(3, 6);
uint8_t parent BP(7, 8);
uint8_t dir_id BP(9, 9); /* 9 to 8+len_di */
/* padding field (if len_di is odd) */
};
/* ECMA-119, 8.3 */
struct ecma119_vol_desc_terminator
{
uint8_t vol_desc_type BP(1, 1);
uint8_t std_identifier BP(2, 6);
uint8_t vol_desc_version BP(7, 7);
uint8_t reserved BP(8, 2048);
};
#endif /*LIBISO_ECMA119_H_*/

2
src/filesrc.c
Unescape Escape View File

@ -220,6 +220,8 @@ int filesrc_writer_write_data(IsoImageWriter *writer)
t = writer->target;
filelist = writer->data;
iso_msg_debug(t->image, "Writing Files...");
nfiles = iso_rbtree_get_size(t->files);
for (i = 0; i < nfiles; ++i) {
IsoFileSrc *file = filelist[i];

1
src/libiso_msgs.h
Unescape Escape View File

@ -385,6 +385,7 @@ Range "vreixo" : 0x00030000 to 0x0003ffff
Image creation:
0x00030100 (NOTE,MEDIUM) = File cannot be added to image (ignored)
0x00030101 (NOTE,MEDIUM) = File cannot be writing to image (ignored)
0x00030102 (FATAL,HIGH) = Write error
General:
0x00031001 (SORRY,HIGH) = Cannot read file (ignored)

3
src/messages.h
Unescape Escape View File

@ -19,6 +19,9 @@
#define LIBISO_FILE_IGNORED 0x00030100
/** File cannot be writing to image (ignored) */
#define LIBISO_FILE_CANT_WRITE 0x00030101
/** Write error */
#define LIBISO_WRITE_ERROR 0x00030102
/** Can't read file (ignored) */
#define LIBISO_CANT_READ_FILE 0x00031001

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