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Append version number to file ids.

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This commit is contained in:
Vreixo Formoso 2007-12-21 23:08:21 +01:00
parent 2fd3195747
commit 5cf2980c9c
2 changed files with 20 additions and 3 deletions
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20
src/ecma119.c
View File

@ -47,9 +47,12 @@ void ecma119_image_free(Ecma119Image *t)
* Compute the size of a directory entry for a single node
*/
static
size_t calc_dirent_len(Ecma119Node *n)
size_t calc_dirent_len(Ecma119Image *t, Ecma119Node *n)
{
int ret = n->iso_name ? strlen(n->iso_name) + 33 : 34;
if (n->type == ECMA119_FILE && !t->omit_version_numbers) {
ret += 2; /* take into account version numbers */
}
if (ret % 2) ret++;
return ret;
}
@ -69,7 +72,7 @@ size_t calc_dir_size(Ecma119Image *t, Ecma119Node *dir)
len = 34 + 34;
for (i = 0; i < dir->info.dir.nchildren; ++i) {
Ecma119Node *child = dir->info.dir.children[i];
size_t dirent_len = calc_dirent_len(child);
size_t dirent_len = calc_dirent_len(t, child);
size_t remaining = BLOCK_SIZE - (len % BLOCK_SIZE);
if (dirent_len > remaining) {
/* child directory entry doesn't fit on block */
@ -174,6 +177,14 @@ void write_one_dir_record(Ecma119Image *t, Ecma119Node *node, int file_id,
len_dr = 33 + len_fi + (len_fi % 2);
memcpy(rec->file_id, name, len_fi);
if (node->type == ECMA119_FILE && !t->omit_version_numbers) {
len_dr += 2;
rec->file_id[len_fi++] = ';';
rec->file_id[len_fi++] = '1';
}
if (node->type == ECMA119_DIR) {
len = calc_dir_size(t, node);
block = node->info.dir.block;
@ -202,7 +213,6 @@ void write_one_dir_record(Ecma119Image *t, Ecma119Node *node, int file_id,
rec->flags[0] = (node->type == ECMA119_DIR) ? 2 : 0;
iso_bb(rec->vol_seq_number, 1, 2);
rec->len_fi[0] = len_fi;
memcpy(rec->file_id, name, len_fi);
}
/**
@ -321,6 +331,9 @@ 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);
if (child->type == ECMA119_FILE && !t->omit_version_numbers) {
len += 2;
}
if ( (buf + len - buffer) > BLOCK_SIZE ) {
/* dir doesn't fit in current block */
ret = iso_write(t, buffer, BLOCK_SIZE);
@ -547,6 +560,7 @@ int ecma119_image_new(IsoImage *src, Ecma119WriteOpts *opts,
iso_image_ref(src);
target->iso_level = opts->level;
target->omit_version_numbers = 0; //TODO
target->sort_files = opts->sort_files;
target->now = time(NULL);

3
src/ecma119.h
View File

@ -27,6 +27,9 @@ struct ecma119_image {
unsigned int iso_level:2;
/* relaxed constraints */
unsigned int omit_version_numbers:1;
// int relaxed_constraints; /**< see ecma119_relaxed_constraints_flag */
//
// int replace_mode; /**< Replace ownership and modes of files