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#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "adb.h"
#include "apk_applet.h"
#include "apk_print.h"
struct sign_ctx {
struct apk_ctx *ac;
struct adb db;
struct apk_istream *is;
struct apk_ostream *os;
struct adb_verify_ctx vfy;
int reset_signatures : 1;
int signatures_written : 1;
};
#define ADBSIGN_OPTIONS(OPT) \
OPT(OPT_ADBSIGN_reset_signatures, "reset-signatures")
APK_OPT_APPLET(option_desc, ADBSIGN_OPTIONS);
static int option_parse_applet(void *pctx, struct apk_ctx *ac, int optch, const char *optarg)
{
struct sign_ctx *ctx = (struct sign_ctx *) pctx;
switch (optch) {
case OPT_ADBSIGN_reset_signatures:
ctx->reset_signatures = 1;
break;
default:
return -ENOTSUP;
}
return 0;
}
static const struct apk_option_group optgroup_applet = {
.desc = option_desc,
.parse = option_parse_applet,
};
static int process_signatures(struct sign_ctx *ctx)
{
int r;
if (ctx->signatures_written) return 0;
ctx->signatures_written = 1;
r = adb_trust_write_signatures(apk_ctx_get_trust(ctx->ac), &ctx->db, &ctx->vfy, ctx->os);
if (r < 0) apk_ostream_cancel(ctx->os, r);
return r;
}
static int process_block(struct adb *db, struct adb_block *blk, struct apk_istream *is)
{
struct sign_ctx *ctx = container_of(db, struct sign_ctx, db);
int r;
switch (adb_block_type(blk)) {
case ADB_BLOCK_ADB:
adb_c_header(ctx->os, db);
return adb_c_block_copy(ctx->os, blk, is, &ctx->vfy);
case ADB_BLOCK_SIG:
if (ctx->reset_signatures)
break;
return adb_c_block_copy(ctx->os, blk, is, NULL);
default:
r = process_signatures(ctx);
if (r < 0) return r;
return adb_c_block_copy(ctx->os, blk, is, NULL);
}
return 0;
}
static int adbsign_main(void *pctx, struct apk_ctx *ac, struct apk_string_array *args)
{
struct apk_out *out = &ac->out;
struct sign_ctx *ctx = pctx;
adb_comp_t comp;
char **arg;
int r;
ctx->ac = ac;
foreach_array_item(arg, args) {
struct apk_istream *is = adb_decompress(apk_istream_from_file_mmap(AT_FDCWD, *arg), &comp);
ctx->os = adb_compress(apk_ostream_to_file(AT_FDCWD, *arg, 0644), comp);
adb_m_process(&ctx->db, is, 0, 0, process_block);
process_signatures(ctx);
adb_free(&ctx->db);
r = apk_ostream_close(ctx->os);
if (r) apk_err(out, "%s: %s", *arg, apk_error_str(r));
}
return 0;
}
static struct apk_applet apk_adbsign = {
.name = "adbsign",
.context_size = sizeof(struct sign_ctx),
.optgroups = { &optgroup_global, &optgroup_signing, &optgroup_applet },
.main = adbsign_main,
};
APK_DEFINE_APPLET(apk_adbsign);
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