+void *pkg_set_raw(pkg_t *pkg, int id, const void *val, size_t len)
+{
+ int rem;
+ struct blob_attr *cur;
+
+ blob_for_each_attr(cur, pkg->blob.head, rem) {
+ if (blob_id(cur) == id) {
+ if (blob_len(cur) < len) {
+ fprintf(stderr, "ERROR: truncating field %d <%p> to %d byte",
+ id, val, blob_len(cur));
+ }
+ memcpy(blob_data(cur), val, blob_len(cur));
+ return blob_data(cur);
+ }
+ }
+
+ cur = blob_put(&pkg->blob, id, val, len);
+ return cur ? blob_data(cur) : NULL;
+}
+
+void *pkg_get_raw(const pkg_t * pkg, int id)
+{
+ int rem;
+ struct blob_attr *cur;
+
+ blob_for_each_attr(cur, pkg->blob.head, rem)
+ if (blob_id(cur) == id)
+ return blob_data(cur);
+
+ return NULL;
+}
+
+char *pkg_set_string(pkg_t *pkg, int id, const char *s)
+{
+ size_t len;
+ char *p;
+
+ if (!s)
+ return NULL;
+
+ len = strlen(s);
+
+ while (isspace(*s)) {
+ s++;
+ len--;
+ }
+
+ while (len > 0 && isspace(s[len - 1]))
+ len--;
+
+ if (!len)
+ return NULL;
+
+ p = pkg_set_raw(pkg, id, s, len + 1);
+ p[len] = 0;
+
+ return p;
+}
+
+char *pkg_get_architecture(const pkg_t *pkg)
+{
+ nv_pair_list_elt_t *l;
+ int n = 1;
+
+ list_for_each_entry(l, &conf->arch_list.head, node) {
+ nv_pair_t *nv = (nv_pair_t *) l->data;
+ if (n++ == pkg->arch_index)
+ return nv->name;
+ }
+
+ return NULL;
+}
+
+char *pkg_set_architecture(pkg_t *pkg, const char *architecture, ssize_t len)
+{
+ nv_pair_list_elt_t *l;
+ int n = 1;
+
+ list_for_each_entry(l, &conf->arch_list.head, node) {
+ nv_pair_t *nv = (nv_pair_t *) l->data;
+
+ if (!strncmp(nv->name, architecture, len) && nv->name[len] == '\0') {
+ if (n >= 8) {
+ opkg_msg(ERROR, "Internal error: too many different architectures\n");
+ break;
+ }
+
+ pkg->arch_index = n;
+ return nv->name;
+ }
+
+ n++;
+ }
+
+ pkg->arch_index = 0;
+ return NULL;
+}
+
+int pkg_get_arch_priority(const pkg_t *pkg)
+{
+ nv_pair_list_elt_t *l;
+ int n = 1;
+
+ list_for_each_entry(l, &conf->arch_list.head, node) {
+ nv_pair_t *nv = (nv_pair_t *) l->data;
+ if (n++ == pkg->arch_index)
+ return strtol(nv->value, NULL, 0);
+ }
+
+ return 0;
+}
+
+char *pkg_get_md5(const pkg_t *pkg)
+{
+ char *p = pkg_get_raw(pkg, PKG_MD5SUM);
+
+ if (!p)
+ return NULL;
+
+ return checksum_bin2hex(p, 16);
+}
+
+char *pkg_set_md5(pkg_t *pkg, const char *cksum)
+{
+ size_t len;
+ char *p = checksum_hex2bin(cksum, &len);
+
+ if (!p || len != 16)
+ return NULL;
+
+ return pkg_set_raw(pkg, PKG_MD5SUM, p, len);
+}
+
+char *pkg_get_sha256(const pkg_t *pkg)
+{
+ char *p = pkg_get_raw(pkg, PKG_SHA256SUM);
+
+ if (!p)
+ return NULL;
+
+ return checksum_bin2hex(p, 32);
+}
+
+char *pkg_set_sha256(pkg_t *pkg, const char *cksum)
+{
+ size_t len;
+ char *p = checksum_hex2bin(cksum, &len);
+
+ if (!p || len != 32)
+ return NULL;
+
+ return pkg_set_raw(pkg, PKG_SHA256SUM, p, len);
+}
+
+