Ejemplo n.º 1
0
/**
 * Check if a pkg is informative.
 *
 * Used by dselect and dpkg query options as an aid to decide whether to
 * display things, and by dump to decide whether to write them out.
 */
bool
pkg_is_informative(struct pkginfo *pkg, struct pkgbin *pkgbin)
{
	/* We ignore Section and Priority, as these tend to hang around. */
	if (pkgbin == &pkg->installed &&
	    (pkg->want != want_unknown ||
	     pkg->eflag != eflag_ok ||
	     pkg->status != stat_notinstalled ||
	     informativeversion(&pkg->configversion)))
		return true;

	if (pkgbin->depends ||
	    nes(pkgbin->description) ||
	    nes(pkgbin->maintainer) ||
	    nes(pkgbin->origin) ||
	    nes(pkgbin->bugs) ||
	    nes(pkgbin->installedsize) ||
	    nes(pkgbin->source) ||
	    informativeversion(&pkgbin->version) ||
	    pkgbin->conffiles ||
	    pkgbin->arbs)
		return true;

	return false;
}
Ejemplo n.º 2
0
int informative(struct pkginfo *pkg, struct pkginfoperfile *info) {
  /* Used by dselect and dpkg query options as an aid to decide
   * whether to display things, and by dump to decide whether to write them
   * out.
   */
  if (info == &pkg->installed &&
      (pkg->want != want_unknown ||
       pkg->eflag != eflagv_ok ||
       pkg->status != stat_notinstalled ||
       informativeversion(&pkg->configversion)))
    /* We ignore Section and Priority, as these tend to hang around. */
    return 1;
  if (!info->valid) return 0;
  if (info->depends ||
      nes(info->description) ||
      nes(info->maintainer) ||
      nes(info->origin) ||
      nes(info->bugs) ||
      nes(info->installedsize) ||
      nes(info->source) ||
      informativeversion(&info->version) ||
      info->conffiles ||
      info->arbs) return 1;
  return 0;
}
Ejemplo n.º 3
0
const char *versiondescribe
(const struct versionrevision *version,
 enum versiondisplayepochwhen vdew)
{
  static struct varbuf bufs[10];
  static int bufnum=0;

  struct varbuf *vb;

  if (!informativeversion(version)) return _("<none>");

  vb= &bufs[bufnum]; bufnum++; if (bufnum == 10) bufnum= 0;
  varbufreset(vb);
  varbufversion(vb,version,vdew);
  varbufaddc(vb,0);

  return vb->buf;
}
Ejemplo n.º 4
0
/*
 * *whynot must already have been initialized; it need not be
 * empty though - it will be reset before use.
 *
 * If depisok returns false for ‘not OK’ it will contain a description,
 * newline-terminated BUT NOT NUL-TERMINATED, of the reason.
 *
 * If depisok returns true it will contain garbage.
 * allowunconfigd should be non-zero during the ‘Pre-Depends’ checking
 * before a package is unpacked, when it is sufficient for the package
 * to be unpacked provided that both the unpacked and previously-configured
 * versions are acceptable.
 *
 * On false return (‘not OK’), *canfixbyremove refers to a package which
 * if removed (dep_conflicts) or deconfigured (dep_breaks) will fix
 * the problem. Caller may pass NULL for canfixbyremove and need not
 * initialize *canfixbyremove.
 */
bool
depisok(struct dependency *dep, struct varbuf *whynot,
        struct pkginfo **canfixbyremove, bool allowunconfigd)
{
  struct deppossi *possi;
  struct deppossi *provider;
  int nconflicts;

  /* Use this buffer so that when internationalisation comes along we
   * don't have to rewrite the code completely, only redo the sprintf strings
   * (assuming we have the fancy argument-number-specifiers).
   * Allow 250x3 for package names, versions, &c, + 250 for ourselves. */
  char linebuf[1024];

  assert(dep->type == dep_depends || dep->type == dep_predepends ||
	 dep->type == dep_breaks || dep->type == dep_conflicts ||
	 dep->type == dep_recommends || dep->type == dep_suggests ||
	 dep->type == dep_enhances);

  if (canfixbyremove)
    *canfixbyremove = NULL;

  /* The dependency is always OK if we're trying to remove the depend*ing*
   * package. */
  switch (dep->up->clientdata->istobe) {
  case itb_remove: case itb_deconfigure:
    return true;
  case itb_normal:
    /* Only installed packages can be make dependency problems. */
    switch (dep->up->status) {
    case stat_installed:
    case stat_triggerspending:
    case stat_triggersawaited:
      break;
    case stat_notinstalled: case stat_configfiles: case stat_halfinstalled:
    case stat_halfconfigured: case stat_unpacked:
      return true;
    default:
      internerr("unknown status depending '%d'", dep->up->status);
    }
    break;
  case itb_installnew: case itb_preinstall:
    break;
  default:
    internerr("unknown istobe depending '%d'", dep->up->clientdata->istobe);
  }

  /* Describe the dependency, in case we have to moan about it. */
  varbufreset(whynot);
  varbufaddc(whynot, ' ');
  describedepcon(whynot, dep);
  varbufaddc(whynot,'\n');

  /* TODO: Check dep_enhances as well. */
  if (dep->type == dep_depends || dep->type == dep_predepends ||
      dep->type == dep_recommends || dep->type == dep_suggests ) {
    /* Go through the alternatives. As soon as we find one that
     * we like, we return ‘true’ straight away. Otherwise, when we get to
     * the end we'll have accumulated all the reasons in whynot and
     * can return ‘false’. */

    for (possi= dep->list; possi; possi= possi->next) {
      switch (possi->ed->clientdata->istobe) {
      case itb_remove:
        sprintf(linebuf,_("  %.250s is to be removed.\n"),possi->ed->name);
        break;
      case itb_deconfigure:
        sprintf(linebuf,_("  %.250s is to be deconfigured.\n"),possi->ed->name);
        break;
      case itb_installnew:
        if (versionsatisfied(&possi->ed->available, possi))
          return true;
        sprintf(linebuf,_("  %.250s is to be installed, but is version %.250s.\n"),
                possi->ed->name,
                versiondescribe(&possi->ed->available.version,vdew_nonambig));
        break;
      case itb_normal: case itb_preinstall:
        switch (possi->ed->status) {
        case stat_installed:
        case stat_triggerspending:
          if (versionsatisfied(&possi->ed->installed, possi))
            return true;
          sprintf(linebuf,_("  %.250s is installed, but is version %.250s.\n"),
                  possi->ed->name,
                  versiondescribe(&possi->ed->installed.version,vdew_nonambig));
          break;
        case stat_notinstalled:
          /* Don't say anything about this yet - it might be a virtual package.
           * Later on, if nothing has put anything in linebuf, we know that it
           * isn't and issue a diagnostic then. */
          *linebuf = '\0';
          break;
        case stat_unpacked:
        case stat_halfconfigured:
        case stat_triggersawaited:
          if (allowunconfigd) {
            if (!informativeversion(&possi->ed->configversion)) {
              sprintf(linebuf, _("  %.250s is unpacked, but has never been configured.\n"),
                      possi->ed->name);
              break;
            } else if (!versionsatisfied(&possi->ed->installed, possi)) {
              sprintf(linebuf, _("  %.250s is unpacked, but is version %.250s.\n"),
                      possi->ed->name,
                      versiondescribe(&possi->ed->available.version,vdew_nonambig));
              break;
            } else if (!versionsatisfied3(&possi->ed->configversion,
                                          &possi->version,possi->verrel)) {
              sprintf(linebuf, _("  %.250s latest configured version is %.250s.\n"),
                      possi->ed->name,
                      versiondescribe(&possi->ed->configversion,vdew_nonambig));
              break;
            } else {
              return true;
            }
          }
          /* Fall through. */
        default:
          sprintf(linebuf, _("  %.250s is %s.\n"),
                  possi->ed->name, gettext(statusstrings[possi->ed->status]));
          break;
        }
        break;
      default:
        internerr("unknown istobe depended '%d'", possi->ed->clientdata->istobe);
      }
      varbufaddstr(whynot, linebuf);

      /* If there was no version specified we try looking for Providers. */
      if (possi->verrel == dvr_none) {
        /* See if the package we're about to install Provides it. */
        for (provider= possi->ed->available.depended;
             provider;
             provider = provider->rev_next) {
          if (provider->up->type != dep_provides) continue;
          if (provider->up->up->clientdata->istobe == itb_installnew)
            return true;
        }

        /* Now look at the packages already on the system. */
        for (provider= possi->ed->installed.depended;
             provider;
             provider = provider->rev_next) {
          if (provider->up->type != dep_provides) continue;

          switch (provider->up->up->clientdata->istobe) {
          case itb_installnew:
            /* Don't pay any attention to the Provides field of the
             * currently-installed version of the package we're trying
             * to install. We dealt with that by using the available
             * information above. */
            continue;
          case itb_remove:
            sprintf(linebuf, _("  %.250s provides %.250s but is to be removed.\n"),
                    provider->up->up->name, possi->ed->name);
            break;
          case itb_deconfigure:
            sprintf(linebuf, _("  %.250s provides %.250s but is to be deconfigured.\n"),
                    provider->up->up->name, possi->ed->name);
            break;
          case itb_normal: case itb_preinstall:
            if (provider->up->up->status == stat_installed)
              return true;
            sprintf(linebuf, _("  %.250s provides %.250s but is %s.\n"),
                    provider->up->up->name, possi->ed->name,
                    gettext(statusstrings[provider->up->up->status]));
            break;
          default:
            internerr("unknown istobe provider '%d'",
                      provider->up->up->clientdata->istobe);
          }
          varbufaddstr(whynot, linebuf);
        }

        if (!*linebuf) {
          /* If the package wasn't installed at all, and we haven't said
           * yet why this isn't satisfied, we should say so now. */
          sprintf(linebuf, _("  %.250s is not installed.\n"), possi->ed->name);
          varbufaddstr(whynot, linebuf);
        }
      }
    }

    return false;
  } else {
    /* It's conflicts or breaks. There's only one main alternative,
     * but we also have to consider Providers. We return ‘false’ as soon
     * as we find something that matches the conflict, and only describe
     * it then. If we get to the end without finding anything we return
     * ‘true’. */

    possi= dep->list;
    nconflicts= 0;

    if (possi->ed != possi->up->up) {
      /* If the package conflicts with or breaks itself it must mean
       * other packages which provide the same virtual name. We
       * therefore don't look at the real package and go on to the
       * virtual ones. */

      switch (possi->ed->clientdata->istobe) {
      case itb_remove:
        break;
      case itb_installnew:
        if (!versionsatisfied(&possi->ed->available, possi)) break;
        sprintf(linebuf, _("  %.250s (version %.250s) is to be installed.\n"),
                possi->ed->name,
                versiondescribe(&possi->ed->available.version,vdew_nonambig));
        varbufaddstr(whynot, linebuf);
        if (!canfixbyremove)
          return false;
        nconflicts++;
        *canfixbyremove= possi->ed;
        break;
      case itb_deconfigure:
        if (dep->type == dep_breaks)
          break; /* Already deconfiguring this. */
        /* Fall through. */
      case itb_normal: case itb_preinstall:
        switch (possi->ed->status) {
        case stat_notinstalled: case stat_configfiles:
          break;
        case stat_halfinstalled: case stat_unpacked:
        case stat_halfconfigured:
          if (dep->type == dep_breaks)
            break; /* No problem. */
        case stat_installed:
        case stat_triggerspending:
        case stat_triggersawaited:
          if (!versionsatisfied(&possi->ed->installed, possi)) break;
          sprintf(linebuf, _("  %.250s (version %.250s) is present and %s.\n"),
                  possi->ed->name,
                  versiondescribe(&possi->ed->installed.version,vdew_nonambig),
                  gettext(statusstrings[possi->ed->status]));
          varbufaddstr(whynot, linebuf);
          if (!canfixbyremove)
            return false;
          nconflicts++;
          *canfixbyremove= possi->ed;
        }
        break;
      default:
        internerr("unknown istobe conflict '%d'",
                  possi->ed->clientdata->istobe);
      }
    }

    /* If there was no version specified we try looking for Providers. */
    if (possi->verrel == dvr_none) {
      /* See if the package we're about to install Provides it. */
      for (provider= possi->ed->available.depended;
           provider;
           provider = provider->rev_next) {
        if (provider->up->type != dep_provides) continue;
        if (provider->up->up->clientdata->istobe != itb_installnew) continue;
        if (provider->up->up == dep->up)
          continue; /* Conflicts and provides the same. */
        sprintf(linebuf, _("  %.250s provides %.250s and is to be installed.\n"),
                provider->up->up->name, possi->ed->name);
        varbufaddstr(whynot, linebuf);
        /* We can't remove the one we're about to install: */
        if (canfixbyremove)
          *canfixbyremove = NULL;
        return false;
      }

      /* Now look at the packages already on the system. */
      for (provider= possi->ed->installed.depended;
           provider;
           provider = provider->rev_next) {
        if (provider->up->type != dep_provides) continue;

        if (provider->up->up == dep->up)
          continue; /* Conflicts and provides the same. */

        switch (provider->up->up->clientdata->istobe) {
        case itb_installnew:
          /* Don't pay any attention to the Provides field of the
           * currently-installed version of the package we're trying
           * to install. We dealt with that package by using the
           * available information above. */
          continue;
        case itb_remove:
          continue;
        case itb_deconfigure:
          if (dep->type == dep_breaks)
            continue; /* Already deconfiguring. */
        case itb_normal: case itb_preinstall:
          switch (provider->up->up->status) {
          case stat_notinstalled: case stat_configfiles:
            continue;
          case stat_halfinstalled: case stat_unpacked:
          case stat_halfconfigured:
            if (dep->type == dep_breaks)
              break; /* No problem. */
          case stat_installed:
          case stat_triggerspending:
          case stat_triggersawaited:
            sprintf(linebuf,
                    _("  %.250s provides %.250s and is present and %s.\n"),
                    provider->up->up->name, possi->ed->name,
                    gettext(statusstrings[provider->up->up->status]));
            varbufaddstr(whynot, linebuf);
            if (!canfixbyremove)
              return false;
            nconflicts++;
            *canfixbyremove= provider->up->up;
            break;
          }
          break;
        default:
          internerr("unknown istobe conflict provider '%d'",
                    provider->up->up->clientdata->istobe);
        }
      }
    }

    if (!nconflicts)
      return true;
    if (nconflicts > 1)
      *canfixbyremove = NULL;
    return false;

  } /* if (dependency) {...} else {...} */
}
Ejemplo n.º 5
0
void cmpversions(const char *const *argv) {
  struct relationinfo {
    const char *string;
    /* These values are exit status codes, so 0 = true, 1 = false. */
    int if_lesser, if_equal, if_greater;
    int if_none_a, if_none_both, if_none_b;
  };

  static const struct relationinfo relationinfos[]= {
    /*             < = > !a!2!b  */
    { "le",        0,0,1, 0,0,1  },
    { "lt",        0,1,1, 0,1,1  },
    { "eq",        1,0,1, 1,0,1  },
    { "ne",        0,1,0, 0,1,0  },
    { "ge",        1,0,0, 1,0,0  },
    { "gt",        1,1,0, 1,1,0  },

    /* These treat an empty version as later than any version. */
    { "le-nl",     0,0,1, 1,0,0  },
    { "lt-nl",     0,1,1, 1,1,0  },
    { "ge-nl",     1,0,0, 0,0,1  },
    { "gt-nl",     1,1,0, 0,1,1  },

    /* For compatibility with dpkg control file syntax. */
    { "<",         0,0,1, 0,0,1  },
    { "<=",        0,0,1, 0,0,1  },
    { "<<",        0,1,1, 0,1,1  },
    { "=",         1,0,1, 1,0,1  },
    { ">",         1,0,0, 1,0,0  },
    { ">=",        1,0,0, 1,0,0  },
    { ">>",        1,1,0, 1,1,0  },
    { NULL                       }
  };

  const struct relationinfo *rip;
  const char *emsg;
  struct versionrevision a, b;
  int r;

  if (!argv[0] || !argv[1] || !argv[2] || argv[3])
    badusage(_("--compare-versions takes three arguments:"
             " <version> <relation> <version>"));

  for (rip=relationinfos; rip->string && strcmp(rip->string,argv[1]); rip++);

  if (!rip->string) badusage(_("--compare-versions bad relation"));

  if (*argv[0] && strcmp(argv[0],"<unknown>")) {
    emsg= parseversion(&a,argv[0]);
    if (emsg)
      ohshit(_("version '%s' has bad syntax: %s"), argv[0], emsg);
  } else {
    blankversion(&a);
  }
  if (*argv[2] && strcmp(argv[2],"<unknown>")) {
    emsg= parseversion(&b,argv[2]);
    if (emsg)
      ohshit(_("version '%s' has bad syntax: %s"), argv[2], emsg);
  } else {
    blankversion(&b);
  }
  if (!informativeversion(&a)) {
    exit(informativeversion(&b) ? rip->if_none_a : rip->if_none_both);
  } else if (!informativeversion(&b)) {
    exit(rip->if_none_b);
  }
  r= versioncompare(&a,&b);
  debug(dbg_general,"cmpversions a=`%s' b=`%s' r=%d",
        versiondescribe(&a,vdew_always),
        versiondescribe(&b,vdew_always),
        r);
  if (r>0) exit(rip->if_greater);
  else if (r<0) exit(rip->if_lesser);
  else exit(rip->if_equal);
}