LCOV - code coverage report
Current view: top level - lib/dpkg - db-fsys-divert.c (source / functions) Coverage Total Hit
Test: dpkg 1.22.7-3-g89f48 C code coverage Lines: 87.5 % 32 28
Test Date: 2024-07-17 02:53:43 Functions: 100.0 % 1 1
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 71.4 % 14 10

             Branch data     Line data    Source code
       1                 :             : /*
       2                 :             :  * libdpkg - Debian packaging suite library routines
       3                 :             :  * db-fsys-divert.c - management of filesystem diverted files database
       4                 :             :  *
       5                 :             :  * Copyright © 1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
       6                 :             :  * Copyright © 2000, 2001 Wichert Akkerman <wakkerma@debian.org>
       7                 :             :  *
       8                 :             :  * This is free software; you can redistribute it and/or modify
       9                 :             :  * it under the terms of the GNU General Public License as published by
      10                 :             :  * the Free Software Foundation; either version 2 of the License, or
      11                 :             :  * (at your option) any later version.
      12                 :             :  *
      13                 :             :  * This is distributed in the hope that it will be useful,
      14                 :             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      15                 :             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16                 :             :  * GNU General Public License for more details.
      17                 :             :  *
      18                 :             :  * You should have received a copy of the GNU General Public License
      19                 :             :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      20                 :             :  */
      21                 :             : 
      22                 :             : #include <config.h>
      23                 :             : #include <compat.h>
      24                 :             : 
      25                 :             : #include <sys/types.h>
      26                 :             : 
      27                 :             : #include <errno.h>
      28                 :             : #include <string.h>
      29                 :             : #include <pwd.h>
      30                 :             : #include <grp.h>
      31                 :             : #include <fcntl.h>
      32                 :             : #include <unistd.h>
      33                 :             : #include <stdlib.h>
      34                 :             : 
      35                 :             : #include <dpkg/i18n.h>
      36                 :             : #include <dpkg/dpkg.h>
      37                 :             : #include <dpkg/dpkg-db.h>
      38                 :             : #include <dpkg/debug.h>
      39                 :             : #include <dpkg/db-fsys.h>
      40                 :             : 
      41                 :             : static struct fsys_diversion *diversions = NULL;
      42                 :             : 
      43                 :             : void
      44                 :          74 : ensure_diversions(void)
      45                 :             : {
      46                 :             :         static struct dpkg_db db = {
      47                 :             :                 .name = DIVERSIONSFILE,
      48                 :             :         };
      49                 :             :         enum dpkg_db_error rc;
      50                 :             :         char linebuf[MAXDIVERTFILENAME];
      51                 :             :         struct fsys_diversion *ov, *oicontest, *oialtname;
      52                 :             : 
      53                 :          74 :         rc = dpkg_db_reopen(&db);
      54         [ -  + ]:          73 :         if (rc == DPKG_DB_SAME)
      55                 :           1 :                 return;
      56                 :             : 
      57         [ -  + ]:          73 :         for (ov = diversions; ov; ov = ov->next) {
      58                 :           0 :                 ov->useinstead->divert->camefrom->divert = NULL;
      59                 :           0 :                 ov->useinstead->divert = NULL;
      60                 :             :         }
      61                 :          73 :         diversions = NULL;
      62                 :             : 
      63         [ +  + ]:          73 :         if (rc == DPKG_DB_NONE)
      64                 :           1 :                 return;
      65                 :             : 
      66                 :          72 :         onerr_abort++;
      67                 :             : 
      68         [ +  + ]:         158 :         while (fgets_checked(linebuf, sizeof(linebuf), db.file, db.pathname) >= 0) {
      69                 :          88 :                 oicontest = nfmalloc(sizeof(*oicontest));
      70                 :          88 :                 oialtname = nfmalloc(sizeof(*oialtname));
      71                 :             : 
      72                 :          88 :                 oialtname->camefrom = fsys_hash_find_node(linebuf, FHFF_NONE);
      73                 :          88 :                 oialtname->useinstead = NULL;
      74                 :             : 
      75                 :          88 :                 fgets_must(linebuf, sizeof(linebuf), db.file, db.pathname);
      76                 :          87 :                 oicontest->useinstead = fsys_hash_find_node(linebuf, FHFF_NONE);
      77                 :          87 :                 oicontest->camefrom = NULL;
      78                 :             : 
      79                 :          87 :                 fgets_must(linebuf, sizeof(linebuf), db.file, db.pathname);
      80                 :         172 :                 oicontest->pkgset = strcmp(linebuf, ":") ?
      81         [ +  + ]:          86 :                                     pkg_hash_find_set(linebuf) : NULL;
      82                 :          86 :                 oialtname->pkgset = oicontest->pkgset;
      83                 :             : 
      84         [ +  - ]:          86 :                 if (oialtname->camefrom->divert ||
      85         [ -  + ]:          86 :                     oicontest->useinstead->divert)
      86                 :           0 :                         ohshit(_("conflicting diversions involving '%.250s' or '%.250s'"),
      87                 :           0 :                                oialtname->camefrom->name, oicontest->useinstead->name);
      88                 :             : 
      89                 :          86 :                 oialtname->camefrom->divert = oicontest;
      90                 :          86 :                 oicontest->useinstead->divert = oialtname;
      91                 :             : 
      92                 :          86 :                 oicontest->next = diversions;
      93                 :          86 :                 diversions = oicontest;
      94                 :             :         }
      95                 :             : 
      96                 :          70 :         onerr_abort--;
      97                 :             : }
        

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