pd.if.org Git - zpackage/blob - lib/zpm.c

   1 #define _POSIX_C_SOURCE 200809L
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8 #include <sys/mman.h>
   9 #include <unistd.h>
  10 #include <fcntl.h>
  11 #include <errno.h>
  12
  13 #include "zpm.h"
  14 #include "elf.h"
  15
  16 #include "sha256.h"
  17
  18 int zpm_begin(struct zpm *z) {
  19         char *errstr = 0;
  20         sqlite3_exec(z->db, "begin;", NULL, NULL, &errstr);
  21         if (errstr) {
  22                 fprintf(stderr, "sqlite begin error: %s\n", errstr);
  23                 sqlite3_free(errstr);
  24                 return 0;
  25         }
  26         return 1;
  27 }
  28
  29 int zpm_commit(struct zpm *z) {
  30         char *errstr = 0;
  31         sqlite3_exec(z->db, "commit;", NULL, NULL, &errstr);
  32         if (errstr) {
  33                 fprintf(stderr, "sqlite commit error: %s\n", errstr);
  34                 sqlite3_free(errstr);
  35                 return 0;
  36         }
  37         return 1;
  38 }
  39
  40 /* wrapper for sqlite3_exec */
  41 int zpm_exec(struct zpm *z, const char *sql, int(*callback)(void *, int, char **, char**), void *arg, char **errmsg) {
  42         return sqlite3_exec(z->db, sql, callback, arg, errmsg);
  43 }
  44
  45 int zpm_rollback(struct zpm *z) {
  46         char *errstr = 0;
  47         sqlite3_exec(z->db, "rollback;", NULL, NULL, &errstr);
  48         if (errstr) {
  49                 fprintf(stderr, "sqlite rollback error: %s\n", errstr);
  50                 sqlite3_free(errstr);
  51                 return 0;
  52         }
  53         return 1;
  54 }
  55
  56 int zpm_db_set_pragma(struct zpm *db, int pragma, int value) {
  57         int rc;
  58         char *sql;
  59         sqlite3_stmt *s;
  60
  61         switch (pragma) {
  62                 case 1: sql = "pragma application_id = ?;"; break;
  63                 case 2: sql = "pragma user_version = ?;"; break;
  64                 default: return -1; break;
  65         }
  66
  67         rc = sqlite3_prepare_v2(db->db, sql, -1, &s, 0);
  68
  69         if (rc != SQLITE_OK) {
  70                 SQLERROR(sqlite3_errmsg(db->db));
  71                 return -1;
  72         }
  73
  74         sqlite3_bind_int(s, 1, value);
  75         if (rc != SQLITE_OK) {
  76                 SQLERROR(sqlite3_errmsg(db->db));
  77                 fprintf(stderr, "cant bind pragma value\n");
  78                 sqlite3_finalize(s);
  79                 return -1;
  80         }
  81         rc = sqlite3_step(s);
  82         if (rc != SQLITE_DONE) {
  83                 SQLERROR(sqlite3_errmsg(db->db));
  84                 fprintf(stderr, "cant set pragma\n");
  85                 sqlite3_finalize(s);
  86                 return -1;
  87         }
  88
  89         sqlite3_finalize(s);
  90         return value;
  91 }
  92
  93 int zpm_db_pragma(struct zpm *db, int pragma) {
  94         int rc;
  95         int value = -1;
  96         char *sql = 0;
  97         sqlite3_stmt *s;
  98
  99         switch (pragma) {
 100                 case 1: sql = "pragma application_id;"; break;
 101                 case 2: sql = "pragma user_version;"; break;
 102                 default: return -1; break;
 103         }
 104
 105         rc = sqlite3_prepare_v2(db->db, sql, -1, &s, 0);
 106
 107         if (rc != SQLITE_OK) {
 108                 SQLERROR(sqlite3_errmsg(db->db));
 109                 fprintf(stderr, "%s, errnum = %d\n", sqlite3_errmsg(db->db), rc);
 110                 /* TODO just abort? */
 111                 return -1;
 112         }
 113
 114         rc = sqlite3_step(s);
 115         if (rc == SQLITE_ROW) {
 116                 value = sqlite3_column_int(s, 0);
 117         }
 118
 119         sqlite3_finalize(s);
 120         return value;
 121 }
 122
 123 static
 124 #include "newdb.c"
 125
 126 int zpm_db_initialize(struct zpm *pkg) {
 127         char *error;
 128         switch (sqlite3_exec(pkg->db, createdb, (int (*)(void *,int,char **,char **))0, NULL, &error)) {
 129                 case SQLITE_OK: break;
 130                 default:
 131                         SQLERROR(sqlite3_errmsg(pkg->db));
 132                         fprintf(stderr, "error: %s\n", error);
 133                         sqlite3_free(error);
 134                         zpm_rollback(pkg);
 135                         return 0;
 136                         break;
 137         }
 138         return 1;
 139 }
 140
 141
 142 /* assumes pkg->db is set */
 143 static int setupdb(struct zpm *zpm) {
 144         char *errstr = 0;
 145         int appid, dbver;
 146
 147         zpm->error = 0;
 148
 149         appid = zpm_db_pragma(zpm, 1);
 150         dbver = zpm_db_pragma(zpm, 2);
 151
 152         if (appid != 0x5a504442) {
 153                 fprintf(stderr, "unknown database type\n");
 154                 zpm->error = 1;
 155                 return 0;
 156         }
 157
 158         if (dbver > 1) {
 159                 fprintf(stderr, "version %d zpm db detected, this program only works with version 1 databases\n", dbver);
 160                 zpm->error = 1;
 161                 return 0;
 162         }
 163
 164         sqlite3_exec(zpm->db, "pragma foreign_keys = ON;", NULL, NULL, &errstr);
 165
 166         if (errstr) {
 167                 free(zpm->errmsg);
 168                 zpm->errmsg = strdup(errstr);
 169                 fprintf(stderr, "sqlite foreign key error: %s\n", errstr);
 170                 sqlite3_free(errstr);
 171                 zpm->error = 1;
 172                 return 0;
 173         }
 174
 175         /* TODO add vercmp */
 176
 177         return 1;
 178 }
 179
 180 struct zpm *zpm_clearmem(struct zpm *zpm) {
 181         if (!zpm) {
 182                 zpm = malloc(sizeof *zpm);
 183         }
 184
 185         if (zpm) {
 186                 *zpm = (struct zpm){0};
 187         }
 188
 189         return zpm;
 190 }
 191
 192 static void zpm_set_db_errmsg(struct zpm *zpm, const char *msg) {
 193         if (zpm) {
 194                 if (zpm->dberrmsg) {
 195                         free(zpm->dberrmsg);
 196                 }
 197                 if (msg) {
 198                         zpm->dberrmsg = strdup(msg);
 199                         if (!zpm->dberrmsg) {
 200                                 zpm->error = 1;
 201                         }
 202                 } else {
 203                         zpm->dberrmsg = 0;
 204                 }
 205         }
 206 }
 207
 208 int zpm_init(struct zpm *pkg, char *path) {
 209         int rc;
 210         sqlite3 *db = 0;
 211         int appid;
 212
 213         if (!pkg) {
 214                 return 0;
 215         }
 216
 217         zpm_clearmem(pkg);
 218
 219         rc = sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
 220         if (rc) {
 221                 pkg->error = 1;
 222                 pkg->dbresult = rc;
 223                 zpm_set_db_errmsg(pkg, sqlite3_errstr(rc));
 224                 if (db) {
 225                         sqlite3_close(db);
 226                 }
 227                 fprintf(stderr, "error (%d): %s: %s\n", rc,
 228                                 pkg->dberrmsg ? pkg->dberrmsg : "null", path);
 229
 230                 return 0;
 231         }
 232         pkg->db   = db;
 233         pkg->path = strdup(path);
 234
 235         appid = zpm_db_pragma(pkg, 1);
 236
 237         switch (appid) {
 238                 case 0: if (!zpm_db_initialize(pkg)) {
 239                                 sqlite3_close(db);
 240                                 return 1;
 241                         };
 242                         break;
 243                 case 0x5a504442:
 244                         /* already initialized */
 245                         break;
 246                 default:
 247                         fprintf(stderr, "unknown database type\n");
 248                         sqlite3_close(db);
 249                         return 0;
 250                         break;
 251         }
 252
 253         if (!setupdb(pkg)) {
 254                 sqlite3_close(db);
 255                 pkg->db = 0;
 256                 return 0;
 257         }
 258         zpm_addvercmp(pkg);
 259
 260         return 1;
 261 }
 262
 263 int zpm_open(struct zpm *zpm, char *path) {
 264         int rc;
 265         sqlite3 *db = 0;
 266
 267         zpm_clearmem(zpm);
 268
 269         rc = sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE, NULL);
 270         if (rc) {
 271                 SQLERROR(sqlite3_errmsg(db));
 272                 sqlite3_close(db);
 273                 zpm->error = 1;
 274                 fprintf(stderr, "path = %s\n", path);
 275                 return 0;
 276         }
 277         zpm->db   = db;
 278         zpm->path = strdup(path);
 279
 280         if (!setupdb(zpm)) {
 281                 sqlite3_close(db);
 282                 zpm->db = 0;
 283                 zpm->error = 1;
 284                 return 0;
 285         }
 286         zpm_addvercmp(zpm);
 287
 288         return 1;
 289 }
 290
 291 int zpm_close(struct zpm *pkg) {
 292         if (pkg) {
 293                 sqlite3_close(pkg->db);
 294                 free(pkg->path);
 295         }
 296         /* TODO free any malloced names and such */
 297         return 1;
 298 }
 299
 300 static int zpm_sqlite_vercmp(void *not_used, int lena, const void *a,
 301                 int lenb, const void *b) {
 302         /* not sure what the ints are, possibly string lengths */
 303         if (not_used != 0) fprintf(stderr, "sqlite vercmp not_used = %p\n",
 304                         not_used);
 305         if (lena == 0 && lenb > 0) return 1;
 306         return zpm_vercmp(a, b);
 307 }
 308
 309 int zpm_addvercmp(struct zpm *pkg) {
 310         return sqlite3_create_collation(
 311                         pkg->db, "vercmp", SQLITE_UTF8, NULL,
 312                         zpm_sqlite_vercmp
 313                         );
 314 }
 315
 316 int zpm_extract(struct zpm *pkg, char *hash, char *path, mode_t mode) {
 317         int rc;
 318         int blobsize;
 319         void *xzdata;
 320         int type;
 321         int out;
 322         sqlite3_stmt *ifile;
 323         size_t len;
 324         char *tmpfile = 0;
 325         sqlite3 *db;
 326
 327         if (!pkg || !pkg->db) {
 328                 return 0;
 329         }
 330         db = pkg->db;
 331
 332         rc = sqlite3_prepare(db, "select size, content from files where hash = ?", -1, &ifile,0);
 333         if (rc != SQLITE_OK) {
 334                 SQLERROR(sqlite3_errmsg(db));
 335                 return 0;
 336         }
 337
 338         /* hash, filename */
 339
 340         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
 341
 342         rc = sqlite3_step(ifile);
 343
 344         if (rc == SQLITE_DONE) {
 345                 /* didn't find a row */
 346                 sqlite3_finalize(ifile);
 347                 sqlite3_close(db);
 348                 fprintf(stderr, "no such hash: %s\n", hash);
 349                 return 0;
 350         }
 351         /* either way we're done with this now */
 352
 353         if (rc != SQLITE_ROW) {
 354                 SQLERROR(sqlite3_errmsg(db));
 355                 sqlite3_finalize(ifile);
 356                 sqlite3_close(db);
 357                 return 0;
 358         }
 359
 360         type = sqlite3_column_type(ifile, 0);
 361         if (type == SQLITE_NULL) {
 362                 fprintf(stderr, "no file size\n");
 363                 sqlite3_finalize(ifile);
 364                 sqlite3_close(db);
 365                 return 0;
 366         }
 367         type = sqlite3_column_type(ifile, 1);
 368         if (type == SQLITE_NULL) {
 369                 fprintf(stderr, "no file data\n");
 370                 sqlite3_finalize(ifile);
 371                 sqlite3_close(db);
 372                 return 0;
 373         }
 374         //size = sqlite3_column_int64(ifile, 0);
 375         xzdata = (void *)sqlite3_column_blob(ifile, 1);
 376         blobsize = sqlite3_column_bytes(ifile, 1);
 377
 378         if (strcmp(path, "-")) {
 379                 len = strlen(path);
 380                 tmpfile = malloc(len+8+1);
 381                 if (!tmpfile) {
 382                         fprintf(stderr, "malloc error\n");
 383                         return 0;
 384                 }
 385                 sprintf(tmpfile, "%sXXXXXX", path);
 386
 387                 out = open(tmpfile, O_CREAT|O_WRONLY|O_TRUNC, 0600);
 388                 if (out == -1) {
 389                         fprintf(stderr, "can't open output file %s: %s\n",
 390                                         tmpfile, strerror(errno));
 391                         sqlite3_finalize(ifile);
 392                         sqlite3_close(db);
 393                         return 0;
 394                 }
 395         } else {
 396                 out = 1;
 397         }
 398
 399 #if 0
 400         fprintf(stderr, "uncompressing %d bytes at %p, expect %lld\n", blobsize, xzdata, (long long int)size);
 401 #endif
 402         uncompresslzma(xzdata, blobsize, out);
 403         close(out);
 404         sqlite3_finalize(ifile);
 405
 406         rc = 1;
 407         if (tmpfile) {
 408                 if (chmod(tmpfile, mode) == -1) {
 409                         fprintf(stderr, "can't chmod %s: %s\n", tmpfile,
 410                                         strerror(errno));
 411                         rc = 0;
 412                 } else if (rename(tmpfile, path) == -1) {
 413                         fprintf(stderr, "extract rename failed: %s\n",
 414                                         strerror(errno));
 415                         rc = 0;
 416                 }
 417         }
 418
 419         if (rc == 0 && tmpfile) {
 420                 if (unlink(tmpfile) == -1) {
 421                         fprintf(stderr, "unlink tmpfile %s fail: %s\n",
 422                                         tmpfile,
 423                                         strerror(errno));
 424                 }
 425         }
 426
 427         return rc;
 428 }
 429
 430 static int run_for_hash(sqlite3 *db, char *sql, char *hash) {
 431         int rc;
 432         sqlite3_stmt *ifile;
 433
 434         rc = sqlite3_prepare_v2(db, sql, -1, &ifile, 0);
 435         if (rc != SQLITE_OK) {
 436                 SQLERROR(sqlite3_errmsg(db));
 437                 return 0;
 438         }
 439
 440         /* hash, filename */
 441
 442         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
 443         do {
 444                 rc = sqlite3_step(ifile);
 445         } while (rc == SQLITE_ROW);
 446
 447         sqlite3_finalize(ifile);
 448
 449         return rc == SQLITE_DONE;
 450 }
 451
 452 #define SQLERP(db, msg) fprintf(stderr, "%s: %s\n", msg, sqlite3_errmsg(db))
 453
 454 static int set_elf_info(sqlite3 *db, char *hash, char *content, size_t length) {
 455         if (length >= sizeof (Elf64_Ehdr) && libelf_iself(content)) {
 456                 char *strtab;
 457                 Elf64_Dyn *dyn;
 458                 int i;
 459                 Elf64_Phdr *phdr;
 460                 Elf64_Ehdr *hdr;
 461                 sqlite3_stmt *ifile;
 462                 int rc;
 463
 464                 /* clear existing for this hash */
 465
 466                 if (!run_for_hash(db, "delete from elflibraries where file = ?", hash)) {
 467                         SQLERP(db, "error clearing elf library");
 468                         return 0;
 469                 }
 470
 471                 if (!run_for_hash(db, "delete from elfneeded where file = ?", hash)) {
 472                         SQLERP(db, "error clearing elf needed");
 473                         return 0;
 474                 }
 475
 476                 hdr = libelf_header(content);
 477                 /* if lib, set soname */
 478                 if (libelf_type(content) == ET_DYN) {
 479                         char *soname = libelf_soname(content);
 480                         if (soname) {
 481
 482                                 sqlite3_prepare_v2(db, "insert into elflibraries (file,soname) values (?,?)",-1, &ifile, 0);
 483                                 sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
 484                                 sqlite3_bind_text(ifile,2,soname,-1,SQLITE_STATIC);
 485                                 rc = sqlite3_step(ifile);
 486                                 if (rc != SQLITE_DONE) {
 487                                         SQLERROR(sqlite3_errmsg(db));
 488                                         sqlite3_finalize(ifile);
 489                                         fprintf(stderr, "error setting library soname\n");
 490                                         return 0;
 491                                 }
 492                                 sqlite3_finalize(ifile);
 493                         } else {
 494                                 fprintf(stderr, "can't find soname\n");
 495                         }
 496                 }
 497
 498                 /* if exe, set neededs */
 499                 if (libelf_type(content) == ET_EXEC) {
 500                         Elf64_Shdr *dsect = 0;
 501                         char *elf;
 502
 503                         elf = (char *)content;
 504                         /* find program header table */
 505                         for (i = 0; i < hdr->e_phnum; i++) {
 506                                 phdr = (Elf64_Phdr *)(elf + hdr->e_phoff + i * hdr->e_phentsize);
 507                                 if (phdr->p_type == PT_DYNAMIC) {
 508                                         dsect = (Elf64_Shdr *)(elf + phdr->p_offset);
 509                                 }
 510                         }
 511                         if (!dsect) {
 512                                 /* no dynamic section found */
 513                                 return 1;
 514                         }
 515
 516 #if 0
 517                         dyn = (Elf64_Dyn *)(elf + dsect->sh_offset);
 518                         if (!dyn) {
 519                                 exit(9);
 520                         }
 521 #endif
 522                         dyn = (Elf64_Dyn *)dsect;
 523
 524                         dsect = libelf_section(elf, SHT_DYNAMIC);
 525                         Elf64_Shdr *strsect;
 526
 527                         strsect = libelf_section_n(elf, dsect->sh_link);
 528                         strtab = elf + strsect->sh_offset;
 529
 530                         sqlite3_prepare_v2(db, "insert into elfneeded (file,needed) values (?,?)",-1, &ifile, 0);
 531                         sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
 532                         while (dyn->d_tag != DT_NULL) {
 533                                 if (dyn->d_tag == DT_NEEDED) {
 534                                         char *need;
 535                                         int rc;
 536
 537                                         need = strtab + dyn->d_un.d_val;
 538                                         if (strlen(need) == 0) continue;
 539                                         sqlite3_bind_text(ifile,2,need,strlen(need),SQLITE_STATIC);
 540 #if 0
 541                                         fprintf(stderr, "%s needs %s\n", hash, need);
 542 #endif
 543                                         rc = sqlite3_step(ifile);
 544                                         if (rc != SQLITE_DONE) {
 545                                                 SQLERP(db, "error setting needed library");
 546                                                 sqlite3_finalize(ifile);
 547                                                 return 0;
 548                                         }
 549                                         sqlite3_reset(ifile);
 550                                 }
 551                                 dyn++;
 552                         }
 553                         sqlite3_finalize(ifile);
 554                 }
 555         }
 556         return 1;
 557 }
 558
 559 int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
 560         int fd;
 561         void *content = 0;
 562         struct stat sbuf;
 563         unsigned char tmp[32];
 564         struct sha256_state md;
 565         sqlite3_stmt *ifile = 0;
 566         int haverow = 0,havedata = 0;
 567         int j,rc,type;
 568         char hashbuf[65];
 569
 570         /* xz compress it */
 571         size_t outlen = 0;
 572         void *outbuf;
 573
 574         if (!zpm || !zpm->db || !path) {
 575                 return 0;
 576         }
 577
 578         /* use local if caller didn't pass in room */
 579         if (!hash) {
 580                 hash = hashbuf;
 581         }
 582
 583         if (flags) {
 584                 fprintf(stderr, "zpm_import unused flags = %d\n", flags);
 585         }
 586         /* mmap the file */
 587         fd = open(path, O_RDONLY);
 588         if (fd == -1) {
 589                 zpm->error = errno;
 590                 fprintf(stderr, "%s can't open %s: %s\n", __FUNCTION__, path,strerror(errno));
 591                 return 0;
 592         }
 593         if (fstat(fd, &sbuf) == -1) {
 594                 zpm->error = errno;
 595                 fprintf(stderr, "%s can't fstat %s: %s\n", __FUNCTION__, path,strerror(errno));
 596                 return 0;
 597         }
 598         /* not a regular file? */
 599         if (!S_ISREG(sbuf.st_mode)) {
 600                 char *ftype;
 601                 switch (sbuf.st_mode & S_IFMT) {
 602                         case S_IFSOCK: ftype = "socket"; break;
 603                         case S_IFLNK : ftype = "symlink"; break;
 604                         case S_IFBLK : ftype = "block device"; break;
 605                         case S_IFDIR : ftype = "directory"; break;
 606                         case S_IFCHR : ftype = "character device"; break;
 607                         case S_IFIFO : ftype = "fifo"; break;
 608                         default: ftype = "unknown file type"; break;
 609                 }
 610                 /* TODO this is ok, just stored differently */
 611                 fprintf(stderr, "%s can't import %s file: %s\n", __FUNCTION__, ftype, path);
 612                 zpm->error = EINVAL;
 613                 return 0;
 614         }
 615
 616         content = mmap(0, sbuf.st_size, PROT_READ,MAP_PRIVATE, fd, 0);
 617         close(fd);
 618         if (!content) {
 619                 zpm->error = errno;
 620                 fprintf(stderr, "%s can't mmap %s: %s\n", __FUNCTION__, path,strerror(errno));
 621                 return 0;
 622         }
 623
 624         /* get hash */
 625         sha256_init(&md);
 626         sha256_process(&md, content, sbuf.st_size);
 627         sha256_done(&md, tmp);
 628         for (j=0;j<32;j++) {
 629                 sprintf(hash+j*2, "%02x", (unsigned)tmp[j]);
 630         }
 631         hash[64] = 0;
 632
 633         /* TODO check null */
 634         sqlite3 *db = zpm->db;
 635
 636         /* prepare and bind */
 637
 638         rc = sqlite3_prepare_v2(db, "select size, content is not null from files where hash = ?", -1, &ifile,0);
 639         if (rc != SQLITE_OK) {
 640                 SQLERROR(sqlite3_errmsg(db));
 641                 munmap(content, sbuf.st_size);
 642                 return 0;
 643         }
 644
 645         /* hash, filename */
 646
 647         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
 648
 649         rc = sqlite3_step(ifile);
 650
 651         if (rc != SQLITE_DONE) {
 652                 if (rc != SQLITE_ROW) {
 653                         /* didn't find a row */
 654                         SQLERROR(sqlite3_errmsg(db));
 655                 munmap(content, sbuf.st_size);
 656                         return 0;
 657                 }
 658                 haverow = 1;
 659                 type = sqlite3_column_type(ifile, 0);
 660                 if (type == SQLITE_NULL) {
 661                         /* TODO assert, this shouldn't be possible? */
 662                         fprintf(stderr, "no file size\n");
 663                         sqlite3_finalize(ifile);
 664                 munmap(content, sbuf.st_size);
 665                         return 0;
 666                 }
 667                 type = sqlite3_column_type(ifile, 1);
 668                 if (type == SQLITE_NULL) {
 669                         /* TODO assert, this shouldn't be possible? */
 670                         fprintf(stderr, "no file data\n");
 671                         sqlite3_finalize(ifile);
 672                 munmap(content, sbuf.st_size);
 673                         return 0;
 674                         /* which is fine, just need to update the row then */
 675                 }
 676                 havedata = sqlite3_column_int(ifile, 1);
 677         }
 678
 679         sqlite3_finalize(ifile);
 680
 681         if (!havedata) {
 682                 /* compress */
 683                 outbuf = compresslzma(content, sbuf.st_size, &outlen);
 684                 if (!outbuf) {
 685                         fprintf(stderr, "compresslzma failed\n");
 686                         munmap(content, sbuf.st_size);
 687                         return 0;
 688                 }
 689
 690                 /* insert */
 691                 if (haverow) {
 692                         rc = sqlite3_prepare_v2(db, "update files set size = ?, content = ? where hash = ?", -1, &ifile,0);
 693                 } else {
 694                         rc = sqlite3_prepare_v2(db, "insert into files (size, content, hash) values (?,?,?)", -1, &ifile,0);
 695                 }
 696
 697                 if (rc != SQLITE_OK) {
 698                         SQLERROR(sqlite3_errmsg(db));
 699                         fprintf(stderr, "cant prepare data\n");
 700                         munmap(content, sbuf.st_size);
 701                         return 0;
 702                 }
 703
 704                 rc = sqlite3_bind_int64(ifile, 1, (sqlite3_int64)sbuf.st_size);
 705                 if (rc != SQLITE_OK) {
 706                         SQLERROR(sqlite3_errmsg(db));
 707                         sqlite3_finalize(ifile);
 708                         fprintf(stderr, "cant bind size\n");
 709                         munmap(content, sbuf.st_size);
 710                         return 0;
 711                 }
 712
 713                 rc = sqlite3_bind_blob64(ifile, 2, outbuf,
 714                                 (sqlite3_int64)outlen, SQLITE_STATIC);
 715                 if (rc != SQLITE_OK) {
 716                         SQLERROR(sqlite3_errmsg(db));
 717                         sqlite3_finalize(ifile);
 718                         fprintf(stderr, "cant bind content\n");
 719                         munmap(content, sbuf.st_size);
 720                         return 0;
 721                 }
 722
 723                 rc = sqlite3_bind_text(ifile, 3, hash, 64, SQLITE_STATIC);
 724                 if (rc != SQLITE_OK) {
 725                         SQLERROR(sqlite3_errmsg(db));
 726                         fprintf(stderr, "cant bind hash\n");
 727                         sqlite3_finalize(ifile);
 728                         munmap(content, sbuf.st_size);
 729                         return 0;
 730                 }
 731
 732                 rc = sqlite3_step(ifile);
 733                 if (rc != SQLITE_DONE) {
 734                         SQLERROR(sqlite3_errmsg(db));
 735                         sqlite3_finalize(ifile);
 736                         munmap(content, sbuf.st_size);
 737                         return 0;
 738                 }
 739                 sqlite3_finalize(ifile);
 740
 741                 /* don't need the original file now */
 742         }
 743
 744         if (!set_elf_info(zpm->db, hash, content, sbuf.st_size)) {
 745                 fprintf(stderr, "setting elf info failed\n");
 746                 munmap(content, sbuf.st_size);
 747                 return 0;
 748         }
 749
 750         munmap(content, sbuf.st_size);
 751
 752         /* return */
 753         return 1;
 754 }