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authorPatrick McDermott <patrick.mcdermott@libiquity.com>2023-04-30 03:44:20 (EDT)
committer Patrick McDermott <patrick.mcdermott@libiquity.com>2023-04-30 03:44:20 (EDT)
commitdc25a788d874d9ee95738b9fa56d2a06f6a31141 (patch)
treec387f2cac34c32e001409f85dfe1281ede74cc6c /src/opk
parentc28ea1e0a30ad036a30288c8cda68c80c08ab0ec (diff)
opk/write: Build mode (WIP)
Diffstat (limited to 'src/opk')
-rw-r--r--src/opk/local.mk3
-rw-r--r--src/opk/opk.h1
-rw-r--r--src/opk/write.c119
3 files changed, 122 insertions, 1 deletions
diff --git a/src/opk/local.mk b/src/opk/local.mk
index a535a4f..a4722ba 100644
--- a/src/opk/local.mk
+++ b/src/opk/local.mk
@@ -1,3 +1,4 @@
opkg_opk_SOURCES += \
%reldir%/opk.h \
- %reldir%/read.c
+ %reldir%/read.c \
+ %reldir%/write.c
diff --git a/src/opk/opk.h b/src/opk/opk.h
index e5fc4d2..afd39b6 100644
--- a/src/opk/opk.h
+++ b/src/opk/opk.h
@@ -39,6 +39,7 @@ struct opkg_opk_opk {
int list_control;
int list_data;
const char *control_dir;
+ const char *data_dir;
FILE *file;
char file_buffer[8192];
struct opkg_opk_gzip *outer_gzip;
diff --git a/src/opk/write.c b/src/opk/write.c
new file mode 100644
index 0000000..12a36c6
--- /dev/null
+++ b/src/opk/write.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2023 Patrick McDermott
+ *
+ * This file is part of opkg-opkg.
+ *
+ * opkg-opkg is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opkg-opkg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with opkg-opkg. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+#include "../defs.h"
+#include "../dirent.h"
+#include "../gzip.h"
+#include "../i18n.h"
+#include "../opk.h"
+#include "../ustar.h"
+#include "opk.h"
+
+static int
+_opkg_opk_opk_write_file(void *user_data, size_t size)
+{
+ struct opkg_opk_opk *opk = user_data;
+
+ if (fwrite(opk->file_buffer, 1, sizeof(opk->file_buffer), opk->file) ==
+ size) {
+ return OPKG_OPK_OK;
+ } else {
+ return OPKG_OPK_ERROR;
+ }
+}
+
+int
+opkg_opk_opk_write(struct opkg_opk_opk *opk, const char *file_name)
+{
+ int ret;
+ struct opkg_opk_dirent dirent;
+ char *buffer;
+ size_t size;
+
+ ret = OPKG_OPK_OK;
+
+ /* Open outer archive. */
+ opk->file = fopen(file_name, "wb");
+ if (opk->file == NULL) {
+ fprintf(stderr, _("Error: Failed to open file \"%s\"\n"),
+ file_name);
+ ret = OPKG_OPK_ERROR;
+ goto out0;
+ }
+
+ /* Initialize outer gzip decompressor. */
+ opk->outer_gzip = opkg_opk_gzip_init_write(&_opkg_opk_opk_write_file,
+ opk);
+ if (opk->outer_gzip == NULL) {
+ fputs(_("Error: Failed to initialize\n"), stderr);
+ ret = OPKG_OPK_ERROR;
+ goto out1;
+ }
+ opkg_opk_gzip_set_write_buffer(opk->outer_gzip, opk->file_buffer,
+ sizeof(opk->file_buffer));
+
+ /* Initialize outer ustar unarchiver. */
+ opk->outer_ustar = opkg_opk_ustar_init(opk->outer_gzip);
+ if (opk->outer_ustar == NULL) {
+ fputs(_("Error: Failed to initialize\n"), stderr);
+ ret = OPKG_OPK_ERROR;
+ goto out2;
+ }
+
+ /* Write version file. */
+ dirent.name = "debian-binary";
+ dirent.parent = NULL;
+ if (opkg_opk_ustar_write_header(opk->outer_ustar, &dirent, 0644,
+ 0, getpwuid(0)->pw_name,
+ 0, getgrgid(0)->gr_name,
+ 4, '-', NULL) != OPKG_OPK_OK) {
+ fputs(_("Error: Failed to write header\n"), stderr);
+ ret = OPKG_OPK_ERROR;
+ goto out3;
+ }
+ opkg_opk_ustar_get_buffer(opk->outer_ustar, &buffer, &size);
+ memcpy(buffer, "2.0\n", 4);
+ if (opkg_opk_ustar_write_data(opk->outer_ustar, 4) != OPKG_OPK_OK) {
+ fputs(_("Error: Failed to write data\n"), stderr);
+ ret = OPKG_OPK_ERROR;
+ goto out3;
+ }
+
+ /* TODO: control.tar.gz and data.tar.gz */
+
+ /* Write trailer. */
+ if (opkg_opk_ustar_write_trailer(opk->outer_ustar) != OPKG_OPK_OK) {
+ fputs(_("Error: Failed to write trailer\n"), stderr);
+ ret = OPKG_OPK_ERROR;
+ goto out3;
+ }
+
+ out3:
+ opkg_opk_ustar_free(opk->outer_ustar);
+ out2:
+ opkg_opk_gzip_free(opk->outer_gzip);
+ out1:
+ fclose(opk->file);
+ out0:
+ return ret;
+}