static zip_int64_t
source_hole_cb(void *ud, void *data, zip_uint64_t length, zip_source_cmd_t command)
{
hole_t *ctx = (hole_t *)ud;
switch (command) {
case ZIP_SOURCE_BEGIN_WRITE:
ctx->out = buffer_new();
return 0;
case ZIP_SOURCE_CLOSE:
return 0;
case ZIP_SOURCE_COMMIT_WRITE:
if (buffer_to_file(ctx->out, ctx->fname, &ctx->error) < 0) {
return -1;
}
buffer_free(ctx->in);
ctx->in = ctx->out;
ctx->out = NULL;
return 0;
case ZIP_SOURCE_ERROR:
return zip_error_to_data(&ctx->error, data, length);
case ZIP_SOURCE_FREE:
hole_free(ctx);
return 0;
case ZIP_SOURCE_OPEN:
ctx->in->offset = 0;
return 0;
case ZIP_SOURCE_READ:
return buffer_read(ctx->in, data, length, &ctx->error);
case ZIP_SOURCE_REMOVE:
buffer_free(ctx->in);
ctx->in = buffer_new();
buffer_free(ctx->out);
ctx->out = NULL;
(void)remove(ctx->fname);
return 0;
case ZIP_SOURCE_ROLLBACK_WRITE:
buffer_free(ctx->out);
ctx->out = NULL;
return 0;
case ZIP_SOURCE_SEEK:
return buffer_seek(ctx->in, data, length, &ctx->error);
case ZIP_SOURCE_SEEK_WRITE:
return buffer_seek(ctx->out, data, length, &ctx->error);
case ZIP_SOURCE_STAT: {
zip_stat_t *st = ZIP_SOURCE_GET_ARGS(zip_stat_t, data, length, &ctx->error);
if (st == NULL) {
return -1;
}
/* TODO: return ENOENT if fname doesn't exist */
st->valid |= ZIP_STAT_SIZE;
st->size = ctx->in->size;
return 0;
}
case ZIP_SOURCE_TELL:
return (zip_int64_t)ctx->in->offset;
case ZIP_SOURCE_TELL_WRITE:
return (zip_int64_t)ctx->out->offset;
case ZIP_SOURCE_WRITE:
return buffer_write(ctx->out, data, length, &ctx->error);
case ZIP_SOURCE_SUPPORTS:
return zip_source_make_command_bitmap(ZIP_SOURCE_BEGIN_WRITE, ZIP_SOURCE_COMMIT_WRITE, ZIP_SOURCE_CLOSE, ZIP_SOURCE_ERROR, ZIP_SOURCE_FREE, ZIP_SOURCE_OPEN, ZIP_SOURCE_READ, ZIP_SOURCE_REMOVE, ZIP_SOURCE_ROLLBACK_WRITE, ZIP_SOURCE_SEEK, ZIP_SOURCE_SEEK_WRITE, ZIP_SOURCE_STAT, ZIP_SOURCE_TELL, ZIP_SOURCE_TELL_WRITE, ZIP_SOURCE_WRITE, -1);
default:
zip_error_set(&ctx->error, ZIP_ER_OPNOTSUPP, 0);
return -1;
}
}
void course_free(void)
{
hole_free();
course_state = 0;
}
