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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         if (!path) {
270                 path = getenv("ZPMDB");
271         }
272
273         if (!path) {
274                 path = "/var/lib/zpm/local.db";
275         }
276
277         rc = sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE, NULL);
278         if (rc) {
279                 SQLERROR(sqlite3_errmsg(db));
280                 sqlite3_close(db);
281                 zpm->error = 1;
282                 fprintf(stderr, "path = %s\n", path);
283                 return 0;
284         }
285         zpm->db   = db;
286         zpm->path = strdup(path);
287
288         if (!setupdb(zpm)) {
289                 sqlite3_close(db);
290                 zpm->db = 0;
291                 zpm->error = 1;
292                 return 0;
293         }
294         zpm_addvercmp(zpm);
295
296         return 1;
297 }
298
299 int zpm_close(struct zpm *pkg) {
300         if (pkg) {
301                 sqlite3_close(pkg->db);
302                 free(pkg->path);
303         }
304         /* TODO free any malloced names and such */
305         return 1;
306 }
307
308 static int zpm_sqlite_vercmp(void *not_used, int lena, const void *a,
309                 int lenb, const void *b) {
310         /* not sure what the ints are, possibly string lengths */
311         if (not_used != 0) fprintf(stderr, "sqlite vercmp not_used = %p\n",
312                         not_used);
313         if (lena == 0 && lenb > 0) return 1;
314         return zpm_vercmp(a, b);
315 }
316
317 int zpm_addvercmp(struct zpm *pkg) {
318         return sqlite3_create_collation(
319                         pkg->db, "vercmp", SQLITE_UTF8, NULL,
320                         zpm_sqlite_vercmp
321                         );
322 }
323
324 int zpm_extract(struct zpm *pkg, char *hash, char *path, mode_t mode) {
325         int rc;
326         int blobsize;
327         void *xzdata;
328         int type;
329         int out;
330         sqlite3_stmt *ifile;
331         size_t len;
332         char *tmpfile = 0;
333         sqlite3 *db;
334
335         if (!pkg || !pkg->db) {
336                 return 0;
337         }
338         db = pkg->db;
339
340         if (!path) {
341                 path = "-";
342         }
343
344         rc = sqlite3_prepare(db, "select size, content from files where hash = ?", -1, &ifile,0);
345         if (rc != SQLITE_OK) {
346                 SQLERROR(sqlite3_errmsg(db));
347                 return 0;
348         }
349
350         /* hash, filename */
351
352         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
353
354         rc = sqlite3_step(ifile);
355
356         if (rc == SQLITE_DONE) {
357                 /* didn't find a row */
358                 sqlite3_finalize(ifile);
359                 sqlite3_close(db);
360                 fprintf(stderr, "no such hash: %s\n", hash);
361                 return 0;
362         }
363         /* either way we're done with this now */
364
365         if (rc != SQLITE_ROW) {
366                 SQLERROR(sqlite3_errmsg(db));
367                 sqlite3_finalize(ifile);
368                 sqlite3_close(db);
369                 return 0;
370         }
371
372         type = sqlite3_column_type(ifile, 0);
373         if (type == SQLITE_NULL) {
374                 fprintf(stderr, "no file size\n");
375                 sqlite3_finalize(ifile);
376                 sqlite3_close(db);
377                 return 0;
378         }
379         type = sqlite3_column_type(ifile, 1);
380         if (type == SQLITE_NULL) {
381                 fprintf(stderr, "no file data\n");
382                 sqlite3_finalize(ifile);
383                 sqlite3_close(db);
384                 return 0;
385         }
386         //size = sqlite3_column_int64(ifile, 0);
387         xzdata = (void *)sqlite3_column_blob(ifile, 1);
388         blobsize = sqlite3_column_bytes(ifile, 1);
389
390         if (strcmp(path, "-")) {
391                 len = strlen(path);
392                 tmpfile = malloc(len+8+1);
393                 if (!tmpfile) {
394                         fprintf(stderr, "malloc error\n");
395                         return 0;
396                 }
397                 sprintf(tmpfile, "%sXXXXXX", path);
398
399                 out = open(tmpfile, O_CREAT|O_WRONLY|O_TRUNC, 0600);
400                 if (out == -1) {
401                         fprintf(stderr, "can't open output file %s: %s\n",
402                                         tmpfile, strerror(errno));
403                         sqlite3_finalize(ifile);
404                         sqlite3_close(db);
405                         free(tmpfile);
406                         return 0;
407                 }
408         } else {
409                 out = 1;
410         }
411
412 #if 0
413         fprintf(stderr, "uncompressing %d bytes at %p, expect %lld\n", blobsize, xzdata, (long long int)size);
414 #endif
415         uncompresslzma(xzdata, blobsize, out);
416         close(out);
417         sqlite3_finalize(ifile);
418
419         rc = 1;
420         if (tmpfile) {
421                 if (chmod(tmpfile, mode) == -1) {
422                         fprintf(stderr, "can't chmod %s: %s\n", tmpfile,
423                                         strerror(errno));
424                         rc = 0;
425                 } else if (rename(tmpfile, path) == -1) {
426                         fprintf(stderr, "extract rename failed: %s\n",
427                                         strerror(errno));
428                         rc = 0;
429                 }
430         }
431
432         if (rc == 0 && tmpfile) {
433                 if (unlink(tmpfile) == -1) {
434                         fprintf(stderr, "unlink tmpfile %s fail: %s\n",
435                                         tmpfile,
436                                         strerror(errno));
437                 }
438         }
439
440         free(tmpfile);
441         return rc;
442 }
443
444 static int run_for_hash(sqlite3 *db, char *sql, char *hash) {
445         int rc;
446         sqlite3_stmt *ifile;
447
448         rc = sqlite3_prepare_v2(db, sql, -1, &ifile, 0);
449         if (rc != SQLITE_OK) {
450                 SQLERROR(sqlite3_errmsg(db));
451                 return 0;
452         }
453
454         /* hash, filename */
455
456         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
457         do {
458                 rc = sqlite3_step(ifile);
459         } while (rc == SQLITE_ROW);
460
461         sqlite3_finalize(ifile);
462
463         return rc == SQLITE_DONE;
464 }
465
466 #define SQLERP(db, msg) fprintf(stderr, "%s: %s\n", msg, sqlite3_errmsg(db))
467
468 static int set_elf_info(struct zpm *zpm, char *hash, char *content,
469                 size_t length) {
470
471         char *strtab;
472         Elf64_Dyn *dyn;
473         int i;
474         Elf64_Phdr *phdr;
475         Elf64_Ehdr *hdr;
476         sqlite3_stmt *ifile;
477         sqlite3 *db = zpm->db;
478
479         if (length < sizeof (Elf64_Ehdr) || !libelf_iself(content)) {
480                 /* not an elf file */
481                 return 1;
482         }
483
484         /* clear existing for this hash */
485
486         if (!run_for_hash(db, "delete from elflibraries where file = ?", hash)) {
487                 SQLERP(db, "error clearing elf library");
488                 return 0;
489         }
490
491         if (!run_for_hash(db, "delete from elfneeded where file = ?", hash)) {
492                 SQLERP(db, "error clearing elf needed");
493                 return 0;
494         }
495
496         hdr = libelf_header(content);
497         /* if lib, set soname */
498         if (libelf_type(content) == ET_DYN) {
499                 char *soname = libelf_soname(content);
500                 if (soname) {
501                         zpm_db_run(zpm, "insert into elflibraries (file,soname) values (%Q,%Q);", hash, soname);
502                         if (zpm->error) {
503                                 return 0;
504                         }
505                 } else {
506                         fprintf(stderr, "can't find soname\n");
507                 }
508         }
509
510         /* if exe, set neededs */
511         /* libraries can have neededs too */
512         if (libelf_type(content) == ET_EXEC || libelf_type(content) == ET_DYN) {
513                 Elf64_Shdr *dsect = 0;
514                 char *elf;
515
516                 elf = (char *)content;
517                 /* find program header table */
518                 for (i = 0; i < hdr->e_phnum; i++) {
519                         phdr = (Elf64_Phdr *)(elf + hdr->e_phoff + i * hdr->e_phentsize);
520                         if (phdr->p_type == PT_DYNAMIC) {
521                                 dsect = (Elf64_Shdr *)(elf + phdr->p_offset);
522                         }
523                 }
524                 if (!dsect) {
525                         /* no dynamic section found */
526                         return 1;
527                 }
528
529                 dyn = (Elf64_Dyn *)dsect;
530
531                 dsect = libelf_section(elf, SHT_DYNAMIC);
532                 Elf64_Shdr *strsect;
533
534                 strsect = libelf_section_n(elf, dsect->sh_link);
535                 strtab = elf + strsect->sh_offset;
536
537                 sqlite3_prepare_v2(db, "insert into elfneeded (file,needed) values (?,?)",-1, &ifile, 0);
538                 sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
539                 while (dyn->d_tag != DT_NULL) {
540                         if (dyn->d_tag == DT_NEEDED) {
541                                 char *need;
542                                 int rc;
543
544                                 need = strtab + dyn->d_un.d_val;
545                                 if (strlen(need) == 0) continue;
546                                 sqlite3_bind_text(ifile,2,need,strlen(need),SQLITE_STATIC);
547 #if 0
548                                 fprintf(stderr, "%s needs %s\n", hash, need);
549 #endif
550                                 rc = sqlite3_step(ifile);
551                                 if (rc != SQLITE_DONE) {
552                                         SQLERP(db, "error setting needed library");
553                                         sqlite3_finalize(ifile);
554                                         return 0;
555                                 }
556                                 sqlite3_reset(ifile);
557                         }
558                         dyn++;
559                 }
560                 sqlite3_finalize(ifile);
561         }
562         return 1;
563 }
564
565 int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
566         int fd;
567         void *content = 0;
568         struct stat sbuf;
569         unsigned char tmp[32];
570         struct sha256_state md;
571         sqlite3_stmt *ifile = 0;
572         int haverow = 0,havedata = 0;
573         int j,rc,type;
574         char hashbuf[65];
575
576         /* xz compress it */
577         size_t outlen = 0;
578         void *outbuf;
579
580         if (!zpm || !zpm->db || !path) {
581                 return 0;
582         }
583
584         /* use local if caller didn't pass in room */
585         if (!hash) {
586                 hash = hashbuf;
587         }
588
589         if (flags) {
590                 fprintf(stderr, "zpm_import unused flags = %d\n", flags);
591         }
592         /* mmap the file */
593         fd = open(path, O_RDONLY);
594         if (fd == -1) {
595                 zpm->error = errno;
596                 fprintf(stderr, "%s can't open %s: %s\n", __FUNCTION__, path,strerror(errno));
597                 return 0;
598         }
599         if (fstat(fd, &sbuf) == -1) {
600                 zpm->error = errno;
601                 fprintf(stderr, "%s can't fstat %s: %s\n", __FUNCTION__, path,strerror(errno));
602                 return 0;
603         }
604         /* not a regular file? */
605         if (!S_ISREG(sbuf.st_mode)) {
606                 char *ftype;
607                 switch (sbuf.st_mode & S_IFMT) {
608                         case S_IFSOCK: ftype = "socket"; break;
609                         case S_IFLNK : ftype = "symlink"; break;
610                         case S_IFBLK : ftype = "block device"; break;
611                         case S_IFDIR : ftype = "directory"; break;
612                         case S_IFCHR : ftype = "character device"; break;
613                         case S_IFIFO : ftype = "fifo"; break;
614                         default: ftype = "unknown file type"; break;
615                 }
616                 /* TODO this is ok, just stored differently */
617                 fprintf(stderr, "%s can't import %s file: %s\n", __FUNCTION__, ftype, path);
618                 zpm->error = EINVAL;
619                 return 0;
620         }
621
622         content = mmap(0, sbuf.st_size, PROT_READ,MAP_PRIVATE, fd, 0);
623         close(fd);
624         if (!content) {
625                 zpm->error = errno;
626                 fprintf(stderr, "%s can't mmap %s: %s\n", __FUNCTION__, path,strerror(errno));
627                 return 0;
628         }
629
630         /* get hash */
631         sha256_init(&md);
632         sha256_process(&md, content, sbuf.st_size);
633         sha256_done(&md, tmp);
634         for (j=0;j<32;j++) {
635                 sprintf(hash+j*2, "%02x", (unsigned)tmp[j]);
636         }
637         hash[64] = 0;
638
639         /* TODO check null */
640         sqlite3 *db = zpm->db;
641
642         /* prepare and bind */
643
644         rc = sqlite3_prepare_v2(db, "select size, content is not null from files where hash = ?", -1, &ifile,0);
645         if (rc != SQLITE_OK) {
646                 SQLERROR(sqlite3_errmsg(db));
647                 munmap(content, sbuf.st_size);
648                 return 0;
649         }
650
651         /* hash, filename */
652
653         sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
654
655         rc = sqlite3_step(ifile);
656
657         if (rc != SQLITE_DONE) {
658                 if (rc != SQLITE_ROW) {
659                         /* didn't find a row */
660                         SQLERROR(sqlite3_errmsg(db));
661                 munmap(content, sbuf.st_size);
662                         return 0;
663                 }
664                 haverow = 1;
665                 type = sqlite3_column_type(ifile, 0);
666                 if (type == SQLITE_NULL) {
667                         /* TODO assert, this shouldn't be possible? */
668                         fprintf(stderr, "no file size\n");
669                         sqlite3_finalize(ifile);
670                 munmap(content, sbuf.st_size);
671                         return 0;
672                 }
673                 type = sqlite3_column_type(ifile, 1);
674                 if (type == SQLITE_NULL) {
675                         /* TODO assert, this shouldn't be possible? */
676                         fprintf(stderr, "no file data\n");
677                         sqlite3_finalize(ifile);
678                 munmap(content, sbuf.st_size);
679                         return 0;
680                         /* which is fine, just need to update the row then */
681                 }
682                 havedata = sqlite3_column_int(ifile, 1);
683         }
684
685         sqlite3_finalize(ifile);
686
687         if (!havedata) {
688                 /* compress */
689 //              fprintf(stderr, "compressing\n");
690                 outbuf = compresslzma(content, sbuf.st_size, &outlen);
691                 if (!outbuf) {
692                         fprintf(stderr, "compresslzma failed\n");
693                         munmap(content, sbuf.st_size);
694                         return 0;
695                 }
696 ////            fprintf(stderr, "compress finished\n");
697
698                 /* insert */
699                 if (haverow) {
700                         rc = sqlite3_prepare_v2(db, "update files set size = ?, content = ? where hash = ?", -1, &ifile,0);
701                 } else {
702                         rc = sqlite3_prepare_v2(db, "insert into files (size, content, hash) values (?,?,?)", -1, &ifile,0);
703                 }
704
705                 if (rc != SQLITE_OK) {
706                         SQLERROR(sqlite3_errmsg(db));
707                         fprintf(stderr, "cant prepare data\n");
708                         munmap(content, sbuf.st_size);
709                         return 0;
710                 }
711
712                 rc = sqlite3_bind_int64(ifile, 1, (sqlite3_int64)sbuf.st_size);
713                 if (rc != SQLITE_OK) {
714                         SQLERROR(sqlite3_errmsg(db));
715                         sqlite3_finalize(ifile);
716                         fprintf(stderr, "cant bind size\n");
717                         munmap(content, sbuf.st_size);
718                         return 0;
719                 }
720
721                 rc = sqlite3_bind_blob64(ifile, 2, outbuf,
722                                 (sqlite3_int64)outlen, SQLITE_STATIC);
723                 if (rc != SQLITE_OK) {
724                         SQLERROR(sqlite3_errmsg(db));
725                         sqlite3_finalize(ifile);
726                         fprintf(stderr, "cant bind content\n");
727                         munmap(content, sbuf.st_size);
728                         return 0;
729                 }
730
731                 rc = sqlite3_bind_text(ifile, 3, hash, 64, SQLITE_STATIC);
732                 if (rc != SQLITE_OK) {
733                         SQLERROR(sqlite3_errmsg(db));
734                         fprintf(stderr, "cant bind hash\n");
735                         sqlite3_finalize(ifile);
736                         munmap(content, sbuf.st_size);
737                         return 0;
738                 }
739
740                 rc = sqlite3_step(ifile);
741                 if (rc != SQLITE_DONE) {
742                         SQLERROR(sqlite3_errmsg(db));
743                         sqlite3_finalize(ifile);
744                         munmap(content, sbuf.st_size);
745                         return 0;
746                 }
747                 sqlite3_finalize(ifile);
748
749                 /* don't need the original file now */
750         }
751
752         if (!set_elf_info(zpm, hash, content, sbuf.st_size)) {
753                 fprintf(stderr, "setting elf info failed\n");
754                 munmap(content, sbuf.st_size);
755                 return 0;
756         }
757
758         munmap(content, sbuf.st_size);
759
760         /* return */
761         return 1;
762 }