107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <assert.h>
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#include "apk_adb.h"
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#include "apk_applet.h"
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struct conv_ctx {
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struct apk_ctx *ac;
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struct adb_obj pkgs;
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struct adb dbi;
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struct apk_sign_ctx sctx;
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int found;
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};
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static void convert_index(struct conv_ctx *ctx, struct apk_istream *is)
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{
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struct adb_obj pkginfo;
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apk_blob_t token = APK_BLOB_STR("\n"), l;
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int i;
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adb_wo_alloca(&pkginfo, &schema_pkginfo, &ctx->dbi);
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while (!APK_BLOB_IS_NULL(l = apk_istream_get_delim(is, token))) {
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if (l.len < 2) {
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adb_wa_append_obj(&ctx->pkgs, &pkginfo);
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continue;
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}
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i = adb_pkg_field_index(l.ptr[0]);
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if (i > 0) adb_wo_pkginfo(&pkginfo, i, APK_BLOB_PTR_LEN(l.ptr+2, l.len-2));
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}
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}
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static int load_apkindex(void *sctx, const struct apk_file_info *fi,
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struct apk_istream *is)
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{
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struct conv_ctx *ctx = sctx;
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int r;
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r = apk_sign_ctx_process_file(&ctx->sctx, fi, is);
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if (r <= 0) return r;
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if (strcmp(fi->name, "APKINDEX") == 0) {
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ctx->found = 1;
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convert_index(ctx, is);
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apk_istream_close(is);
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}
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return 0;
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}
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static int load_index(struct conv_ctx *ctx, struct apk_istream *is)
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{
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struct apk_id_cache *idc = apk_ctx_get_id_cache(ctx->ac);
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int r = 0;
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if (IS_ERR_OR_NULL(is)) return is ? PTR_ERR(is) : -EINVAL;
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ctx->found = 0;
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apk_sign_ctx_init(&ctx->sctx, APK_SIGN_VERIFY, NULL, apk_ctx_fd_keys(ctx->ac), ctx->ac->flags & APK_ALLOW_UNTRUSTED);
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r = apk_tar_parse(
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apk_istream_gunzip_mpart(is, apk_sign_ctx_mpart_cb, &ctx->sctx),
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load_apkindex, ctx, idc);
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apk_sign_ctx_free(&ctx->sctx);
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if (r >= 0 && ctx->found == 0) r = -ENOMSG;
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return r;
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}
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static int conv_main(void *pctx, struct apk_ctx *ac, struct apk_string_array *args)
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{
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char **arg;
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struct conv_ctx *ctx = pctx;
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struct adb_trust *trust = apk_ctx_get_trust(ac);
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struct adb_obj ndx;
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int r;
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ctx->ac = ac;
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adb_w_init_alloca(&ctx->dbi, ADB_SCHEMA_INDEX, 1000);
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adb_wo_alloca(&ndx, &schema_index, &ctx->dbi);
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adb_wo_alloca(&ctx->pkgs, &schema_pkginfo_array, &ctx->dbi);
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foreach_array_item(arg, args) {
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r = load_index(ctx, apk_istream_from_url(*arg, apk_ctx_since(ac, 0)));
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if (r) goto err;
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fprintf(stderr, "%s: %u packages\n", *arg, adb_ra_num(&ctx->pkgs));
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}
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adb_wo_obj(&ndx, ADBI_NDX_PACKAGES, &ctx->pkgs);
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adb_w_rootobj(&ndx);
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r = adb_c_create(apk_ostream_to_fd(STDOUT_FILENO), &ctx->dbi, trust);
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err:
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adb_free(&ctx->dbi);
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return r;
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}
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static struct apk_applet apk_convndx = {
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.name = "convndx",
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.context_size = sizeof(struct conv_ctx),
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.optgroups = { &optgroup_global, &optgroup_signing },
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.main = conv_main,
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};
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APK_DEFINE_APPLET(apk_convndx);
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