1 /* opkg_install.c - the opkg package management system
5 Copyright (C) 2001 University of Southern California
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2, or (at
10 your option) any later version.
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 General Public License for more details.
25 typedef void (*sighandler_t)(int);
30 #include "pkg_extract.h"
32 #include "opkg_install.h"
33 #include "opkg_configure.h"
34 #include "opkg_download.h"
35 #include "opkg_remove.h"
37 #include "opkg_utils.h"
38 #include "opkg_message.h"
40 #include "opkg_defines.h"
42 #include "sprintf_alloc.h"
43 #include "file_util.h"
47 #include "libbb/libbb.h"
49 static int verify_pkg_installable(opkg_conf_t *conf, pkg_t *pkg);
50 static int unpack_pkg_control_files(opkg_conf_t *conf, pkg_t *pkg);
52 static int prerm_upgrade_old_pkg(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
53 static int prerm_upgrade_old_pkg_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
54 static int prerm_deconfigure_conflictors(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *conflictors);
55 static int prerm_deconfigure_conflictors_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *conflictors);
56 static int preinst_configure(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
57 static int preinst_configure_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
58 static int check_data_file_clashes(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
59 static int check_data_file_clashes_change(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
60 static int check_data_file_clashes_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
61 static int backup_modified_conffiles(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
62 static int backup_modified_conffiles_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
63 static int postrm_upgrade_old_pkg(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
64 static int postrm_upgrade_old_pkg_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
66 static int remove_obsolesced_files(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
67 static int install_maintainer_scripts(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg);
68 static int remove_disappeared(opkg_conf_t *conf, pkg_t *pkg);
69 static int install_data_files(opkg_conf_t *conf, pkg_t *pkg);
70 static int resolve_conffiles(opkg_conf_t *conf, pkg_t *pkg);
72 static int user_prefers_old_conffile(const char *file, const char *backup);
74 static char *backup_filename_alloc(const char *file_name);
75 static int backup_make_backup(opkg_conf_t *conf, const char *file_name);
76 static int backup_exists_for(const char *file_name);
77 static int backup_remove(const char *file_name);
80 int opkg_install_from_file(opkg_conf_t *conf, const char *filename)
84 char *old_version, *new_version;
88 err = pkg_init_from_file(pkg, filename);
93 if (!pkg->architecture) {
94 opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
98 /* XXX: CLEANUP: hash_insert_pkg has a nasty side effect of possibly
99 freeing the pkg that we pass in. It might be nice to clean this up
101 pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
102 old = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, pkg->name);
105 old_version = pkg_version_str_alloc(old);
106 new_version = pkg_version_str_alloc(pkg);
108 cmp = pkg_compare_versions(old, pkg);
109 if ( (conf->force_downgrade==1) && (cmp > 0) ){ /* We've been asked to allow downgrade and version is precedent */
110 cmp = -1 ; /* then we force opkg to downgrade */
111 /* We need to use a value < 0 because in the 0 case we are asking to */
112 /* reinstall, and some check could fail asking the "force-reinstall" option */
115 opkg_message(conf, OPKG_NOTICE,
116 "Not downgrading package %s on %s from %s to %s.\n",
117 old->name, old->dest->name, old_version, new_version);
118 pkg->state_want = SW_DEINSTALL;
119 pkg->state_flag |= SF_OBSOLETE;
129 opkg_message(conf, OPKG_DEBUG2,"Function: %s calling opkg_install_pkg \n",__FUNCTION__);
130 return opkg_install_pkg(conf, pkg,0);
133 opkg_error_t opkg_install_by_name(opkg_conf_t *conf, const char *pkg_name)
137 char *old_version, *new_version;
139 opkg_message(conf, OPKG_DEBUG2, " Getting old from pkg_hash_fetch \n" );
140 old = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, pkg_name);
142 opkg_message(conf, OPKG_DEBUG2, " Old versions from pkg_hash_fetch %s \n", old->version );
144 opkg_message(conf, OPKG_DEBUG2, " Getting new from pkg_hash_fetch \n" );
145 new = pkg_hash_fetch_best_installation_candidate_by_name(conf, pkg_name, &err);
147 opkg_message(conf, OPKG_DEBUG2, " New versions from pkg_hash_fetch %s \n", new->version );
149 /* Pigi Basically here is broken the version stuff.
150 What's happening is that nothing provide the version to differents
151 functions, so the returned struct is always the latest.
152 That's why the install by name don't work.
154 opkg_message(conf, OPKG_DEBUG2, " Versions from pkg_hash_fetch in %s ", __FUNCTION__ );
157 opkg_message(conf, OPKG_DEBUG2, " old %s ", old->version );
159 opkg_message(conf, OPKG_DEBUG2, " new %s ", new->version );
160 opkg_message(conf, OPKG_DEBUG2, " \n");
166 return OPKG_PKG_HAS_NO_CANDIDATE;
169 new->state_flag |= SF_USER;
171 old_version = pkg_version_str_alloc(old);
172 new_version = pkg_version_str_alloc(new);
174 cmp = pkg_compare_versions(old, new);
175 if ( (conf->force_downgrade==1) && (cmp > 0) ){ /* We've been asked to allow downgrade and version is precedent */
176 opkg_message(conf, OPKG_DEBUG, " Forcing downgrade \n");
177 cmp = -1 ; /* then we force opkg to downgrade */
178 /* We need to use a value < 0 because in the 0 case we are asking to */
179 /* reinstall, and some check could fail asking the "force-reinstall" option */
181 opkg_message(conf, OPKG_DEBUG,
182 "Comparing visible versions of pkg %s:"
183 "\n\t%s is installed "
184 "\n\t%s is available "
185 "\n\t%d was comparison result\n",
186 pkg_name, old_version, new_version, cmp);
187 if (cmp == 0 && !conf->force_reinstall) {
188 opkg_message(conf, OPKG_NOTICE,
189 "Package %s (%s) installed in %s is up to date.\n",
190 old->name, old_version, old->dest->name);
194 } else if (cmp > 0) {
195 opkg_message(conf, OPKG_NOTICE,
196 "Not downgrading package %s on %s from %s to %s.\n",
197 old->name, old->dest->name, old_version, new_version);
201 } else if (cmp < 0) {
202 new->dest = old->dest;
203 old->state_want = SW_DEINSTALL; /* Here probably the problem for bug 1277 */
209 /* XXX: CLEANUP: The error code of opkg_install_by_name is really
210 supposed to be an opkg_error_t, but opkg_install_pkg could
211 return any kind of integer, (might be errno from a syscall,
212 etc.). This is a real mess and will need to be cleaned up if
213 anyone ever wants to make a nice libopkg. */
215 opkg_message(conf, OPKG_DEBUG2,"Function: %s calling opkg_install_pkg \n",__FUNCTION__);
216 return opkg_install_pkg(conf, new,0);
219 opkg_error_t opkg_install_multi_by_name(opkg_conf_t *conf, const char *pkg_name)
221 abstract_pkg_vec_t *providers = pkg_hash_fetch_all_installation_candidates (&conf->pkg_hash, pkg_name);
224 abstract_pkg_t *ppkg ;
226 if (providers == NULL)
227 return OPKG_PKG_HAS_NO_CANDIDATE;
229 for (i = 0; i < providers->len; i++) {
230 ppkg = abstract_pkg_vec_get(providers, i);
231 opkg_message(conf, OPKG_DEBUG2,"Function: %s calling opkg_install_by_name %d \n",__FUNCTION__, i);
232 err = opkg_install_by_name(conf, ppkg->name);
235 /* XXX Maybe ppkg should be freed ? */
241 * Walk dependence graph starting with pkg, collect packages to be
242 * installed into pkgs_needed, in dependence order.
244 int pkg_mark_dependencies_for_installation(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *pkgs_needed)
247 pkg_vec_t *depends = pkg_vec_alloc();
248 char **unresolved = NULL;
251 ndepends = pkg_hash_fetch_unsatisfied_dependencies(conf,
256 opkg_message(conf, OPKG_ERROR,
257 "%s: Cannot satisfy the following dependencies for %s:\n\t",
258 conf->force_depends ? "Warning" : "ERROR", pkg->name);
259 while (*unresolved) {
260 opkg_message(conf, OPKG_ERROR, " %s", *unresolved);
263 opkg_message(conf, OPKG_ERROR, "\n");
264 if (! conf->force_depends) {
265 opkg_message(conf, OPKG_INFO,
266 "This could mean that your package list is out of date or that the packages\n"
267 "mentioned above do not yet exist (try 'opkg update'). To proceed in spite\n"
268 "of this problem try again with the '-force-depends' option.\n");
269 pkg_vec_free(depends);
270 return OPKG_PKG_DEPS_UNSATISFIED;
275 pkg_vec_free(depends);
279 for (i = 0; i < depends->len; i++) {
280 pkg_t *dep = depends->pkgs[i];
281 /* The package was uninstalled when we started, but another
282 dep earlier in this loop may have depended on it and pulled
283 it in, so check first. */
284 if ((dep->state_status != SS_INSTALLED)
285 && (dep->state_status != SS_UNPACKED)
286 && (dep->state_want != SW_INSTALL)) {
288 /* Mark packages as to-be-installed */
289 dep->state_want = SW_INSTALL;
291 /* Dependencies should be installed the same place as pkg */
292 if (dep->dest == NULL) {
293 dep->dest = pkg->dest;
296 err = pkg_mark_dependencies_for_installation(conf, dep, pkgs_needed);
298 pkg_vec_free(depends);
304 pkg_vec_insert(pkgs_needed, pkg);
306 pkg_vec_free(depends);
311 int satisfy_dependencies_for(opkg_conf_t *conf, pkg_t *pkg)
314 pkg_vec_t *depends = pkg_vec_alloc();
316 char **unresolved = NULL;
319 ndepends = pkg_hash_fetch_unsatisfied_dependencies(conf,
324 opkg_message(conf, OPKG_ERROR,
325 "%s: Cannot satisfy the following dependencies for %s:\n\t",
326 conf->force_depends ? "Warning" : "ERROR", pkg->name);
327 while (*unresolved) {
328 opkg_message(conf, OPKG_ERROR, " %s", *unresolved);
331 opkg_message(conf, OPKG_ERROR, "\n");
332 if (! conf->force_depends) {
333 opkg_message(conf, OPKG_INFO,
334 "This could mean that your package list is out of date or that the packages\n"
335 "mentioned above do not yet exist (try 'opkg update'). To proceed in spite\n"
336 "of this problem try again with the '-force-depends' option.\n");
337 pkg_vec_free(depends);
338 return OPKG_PKG_DEPS_UNSATISFIED;
343 pkg_vec_free(depends);
347 /* Mark packages as to-be-installed */
348 for (i=0; i < depends->len; i++) {
349 /* Dependencies should be installed the same place as pkg */
350 if (depends->pkgs[i]->dest == NULL) {
351 depends->pkgs[i]->dest = pkg->dest;
353 depends->pkgs[i]->state_want = SW_INSTALL;
356 for (i = 0; i < depends->len; i++) {
357 dep = depends->pkgs[i];
358 /* The package was uninstalled when we started, but another
359 dep earlier in this loop may have depended on it and pulled
360 it in, so check first. */
361 if ((dep->state_status != SS_INSTALLED)
362 && (dep->state_status != SS_UNPACKED)) {
363 opkg_message(conf, OPKG_DEBUG2,"Function: %s calling opkg_install_pkg \n",__FUNCTION__);
364 err = opkg_install_pkg(conf, dep,0);
365 /* mark this package as having been automatically installed to
366 * satisfy a dependancy */
367 dep->auto_installed = 1;
369 pkg_vec_free(depends);
375 pkg_vec_free(depends);
381 /* check all packages have their dependences satisfied, e.g., in case an upgraded package split */
382 int opkg_satisfy_all_dependences(opkg_conf_t *conf)
384 if (conf->nodeps == 0) {
386 pkg_vec_t *installed = pkg_vec_alloc();
387 pkg_hash_fetch_all_installed(&conf->pkg_hash, installed);
388 for (i = 0; i < installed->len; i++) {
389 pkg_t *pkg = installed->pkgs[i];
390 satisfy_dependencies_for(conf, pkg);
392 pkg_vec_free(installed);
398 static int check_conflicts_for(opkg_conf_t *conf, pkg_t *pkg)
401 pkg_vec_t *conflicts = NULL;
404 if (conf->force_depends) {
412 if (!conf->force_depends)
413 conflicts = (pkg_vec_t *)pkg_hash_fetch_conflicts(&conf->pkg_hash, pkg);
416 opkg_message(conf, level,
417 "%s: The following packages conflict with %s:\n\t", prefix, pkg->name);
419 while (i < conflicts->len)
420 opkg_message(conf, level, " %s", conflicts->pkgs[i++]->name);
421 opkg_message(conf, level, "\n");
422 pkg_vec_free(conflicts);
423 return OPKG_PKG_DEPS_UNSATISFIED;
428 static int update_file_ownership(opkg_conf_t *conf, pkg_t *new_pkg, pkg_t *old_pkg)
430 str_list_t *new_list = pkg_get_installed_files(conf, new_pkg);
431 str_list_elt_t *iter, *niter;
433 for (iter = str_list_first(new_list), niter = str_list_next(new_list, iter);
435 iter = niter, niter = str_list_next(new_list, niter)) {
436 char *new_file = (char *)iter->data;
437 pkg_t *owner = file_hash_get_file_owner(conf, new_file);
439 opkg_message(conf, OPKG_ERROR, "Null new_file for new_pkg=%s\n", new_pkg->name);
440 if (!owner || (owner == old_pkg))
441 file_hash_set_file_owner(conf, new_file, new_pkg);
444 str_list_t *old_list = pkg_get_installed_files(conf, old_pkg);
445 for (iter = str_list_first(old_list), niter = str_list_next(old_list, iter);
447 iter = niter, niter = str_list_next(old_list, niter)) {
448 char *old_file = (char *)iter->data;
449 pkg_t *owner = file_hash_get_file_owner(conf, old_file);
450 if (owner == old_pkg) {
452 hash_table_insert(&conf->obs_file_hash, old_file, old_pkg);
455 pkg_free_installed_files(old_pkg);
457 pkg_free_installed_files(new_pkg);
461 static int verify_pkg_installable(opkg_conf_t *conf, pkg_t *pkg)
463 /* XXX: FEATURE: Anything else needed here? Maybe a check on free space? */
465 /* sma 6.20.02: yup; here's the first bit */
467 * XXX: BUG easy for cworth
468 * 1) please point the call below to the correct current root destination
469 * 2) we need to resolve how to check the required space for a pending pkg,
470 * my diddling with the .opk file size below isn't going to cut it.
471 * 3) return a proper error code instead of 1
473 int comp_size, blocks_available;
476 if (!conf->force_space && pkg->installed_size != NULL) {
477 root_dir = pkg->dest ? pkg->dest->root_dir : conf->default_dest->root_dir;
478 blocks_available = get_available_blocks(root_dir);
480 comp_size = strtoul(pkg->installed_size, NULL, 0);
481 /* round up a blocks count without doing fancy-but-slow casting jazz */
482 comp_size = (int)((comp_size + 1023) / 1024);
484 if (comp_size >= blocks_available) {
485 opkg_message(conf, OPKG_ERROR,
486 "Only have %d available blocks on filesystem %s, pkg %s needs %d\n",
487 blocks_available, root_dir, pkg->name, comp_size);
494 static int unpack_pkg_control_files(opkg_conf_t *conf, pkg_t *pkg)
497 char *conffiles_file_name;
499 FILE *conffiles_file;
501 sprintf_alloc(&pkg->tmp_unpack_dir, "%s/%s-XXXXXX", conf->tmp_dir, pkg->name);
503 pkg->tmp_unpack_dir = mkdtemp(pkg->tmp_unpack_dir);
504 if (pkg->tmp_unpack_dir == NULL) {
505 opkg_message(conf, OPKG_ERROR,
506 "%s: Failed to create temporary directory '%s': %s\n",
507 __FUNCTION__, pkg->tmp_unpack_dir, strerror(errno));
511 err = pkg_extract_control_files_to_dir(pkg, pkg->tmp_unpack_dir);
516 /* XXX: CLEANUP: There might be a cleaner place to read in the
517 conffiles. Seems like I should be able to get everything to go
518 through pkg_init_from_file. If so, maybe it would make sense to
519 move all of unpack_pkg_control_files to that function. */
521 /* Don't need to re-read conffiles if we already have it */
522 if (!nv_pair_list_empty(&pkg->conffiles)) {
526 sprintf_alloc(&conffiles_file_name, "%s/conffiles", pkg->tmp_unpack_dir);
527 if (! file_exists(conffiles_file_name)) {
528 free(conffiles_file_name);
532 conffiles_file = fopen(conffiles_file_name, "r");
533 if (conffiles_file == NULL) {
534 fprintf(stderr, "%s: failed to open %s: %s\n",
535 __FUNCTION__, conffiles_file_name, strerror(errno));
536 free(conffiles_file_name);
539 free(conffiles_file_name);
543 char *cf_name_in_dest;
545 cf_name = file_read_line_alloc(conffiles_file);
546 if (cf_name == NULL) {
550 if (cf_name[0] == '\0') {
554 /* Prepend dest->root_dir to conffile name.
555 Take pains to avoid multiple slashes. */
556 root_dir = pkg->dest->root_dir;
557 if (conf->offline_root)
558 /* skip the offline_root prefix */
559 root_dir = pkg->dest->root_dir + strlen(conf->offline_root);
560 sprintf_alloc(&cf_name_in_dest, "%s%s", root_dir,
561 cf_name[0] == '/' ? (cf_name + 1) : cf_name);
563 /* Can't get an md5sum now, (file isn't extracted yet).
564 We'll wait until resolve_conffiles */
565 conffile_list_append(&pkg->conffiles, cf_name_in_dest, NULL);
568 free(cf_name_in_dest);
571 fclose(conffiles_file);
577 * Remove packages which were auto_installed due to a dependency by old_pkg,
578 * which are no longer a dependency in the new (upgraded) pkg.
581 pkg_remove_orphan_dependent(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
583 int i, j, k, l, found;
586 struct compound_depend *cd0, *cd1;
587 abstract_pkg_t **dependents;
589 for (i=0; i<old_pkg->depends_count; i++) {
590 cd0 = &old_pkg->depends[i];
591 if (cd0->type != DEPEND)
593 for (j=0; j<cd0->possibility_count; j++) {
597 for (k=0; k<pkg->depends_count; k++) {
598 cd1 = &pkg->depends[i];
599 if (cd1->type != DEPEND)
601 for (l=0; l<cd1->possibility_count; l++) {
602 if (cd0->possibilities[j]
603 == cd1->possibilities[l]) {
616 * old_pkg has a dependency that pkg does not.
618 p = pkg_hash_fetch_installed_by_name (&conf->pkg_hash,
619 cd0->possibilities[j]->pkg->name);
624 if (!p->auto_installed)
627 n_deps = pkg_has_installed_dependents(conf, NULL, p,
629 n_deps--; /* don't count old_pkg */
632 opkg_message (conf, OPKG_NOTICE,
633 "%s was autoinstalled and is "
634 "now orphaned, removing.\n",
637 /* p has one installed dependency (old_pkg),
638 * which we need to ignore during removal. */
639 p->state_flag |= SF_REPLACE;
641 opkg_remove_pkg(conf, p, 0);
643 opkg_message(conf, OPKG_INFO,
644 "%s was autoinstalled and is "
645 "still required by %d "
646 "installed packages.\n",
655 /* returns number of installed replacees */
656 int pkg_get_installed_replacees(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *installed_replacees)
658 abstract_pkg_t **replaces = pkg->replaces;
659 int replaces_count = pkg->replaces_count;
661 for (i = 0; i < replaces_count; i++) {
662 abstract_pkg_t *ab_pkg = replaces[i];
663 pkg_vec_t *pkg_vec = ab_pkg->pkgs;
665 for (j = 0; j < pkg_vec->len; j++) {
666 pkg_t *replacee = pkg_vec->pkgs[j];
667 if (!pkg_conflicts(pkg, replacee))
669 if (replacee->state_status == SS_INSTALLED) {
670 pkg_vec_insert(installed_replacees, replacee);
675 return installed_replacees->len;
678 int pkg_remove_installed_replacees(opkg_conf_t *conf, pkg_vec_t *replacees)
681 int replaces_count = replacees->len;
682 for (i = 0; i < replaces_count; i++) {
683 pkg_t *replacee = replacees->pkgs[i];
685 replacee->state_flag |= SF_REPLACE; /* flag it so remove won't complain */
686 err = opkg_remove_pkg(conf, replacee,0);
693 /* to unwind the removal: make sure they are installed */
694 int pkg_remove_installed_replacees_unwind(opkg_conf_t *conf, pkg_vec_t *replacees)
697 int replaces_count = replacees->len;
698 for (i = 0; i < replaces_count; i++) {
699 pkg_t *replacee = replacees->pkgs[i];
700 if (replacee->state_status != SS_INSTALLED) {
701 opkg_message(conf, OPKG_DEBUG2,"Function: %s calling opkg_install_pkg \n",__FUNCTION__);
702 err = opkg_install_pkg(conf, replacee,0);
710 /* compares versions of pkg and old_pkg, returns 0 if OK to proceed with installation of pkg, 1 otherwise */
711 static int opkg_install_check_downgrade(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg, int message)
714 char message_out[15];
715 char *old_version = pkg_version_str_alloc(old_pkg);
716 char *new_version = pkg_version_str_alloc(pkg);
717 int cmp = pkg_compare_versions(old_pkg, pkg);
720 memset(message_out,'\x0',15);
721 strncpy (message_out,"Upgrading ",strlen("Upgrading "));
722 if ( (conf->force_downgrade==1) && (cmp > 0) ){ /* We've been asked to allow downgrade and version is precedent */
723 cmp = -1 ; /* then we force opkg to downgrade */
724 strncpy (message_out,"Downgrading ",strlen("Downgrading ")); /* We need to use a value < 0 because in the 0 case we are asking to */
725 /* reinstall, and some check could fail asking the "force-reinstall" option */
729 opkg_message(conf, OPKG_NOTICE,
730 "Not downgrading package %s on %s from %s to %s.\n",
731 old_pkg->name, old_pkg->dest->name, old_version, new_version);
733 } else if (cmp < 0) {
734 opkg_message(conf, OPKG_NOTICE,
735 "%s%s on %s from %s to %s...\n",
736 message_out, pkg->name, old_pkg->dest->name, old_version, new_version);
737 pkg->dest = old_pkg->dest;
739 } else /* cmp == 0 */ {
740 if (conf->force_reinstall) {
741 opkg_message(conf, OPKG_NOTICE,
742 "Reinstalling %s (%s) on %s...\n",
743 pkg->name, new_version, old_pkg->dest->name);
744 pkg->dest = old_pkg->dest;
747 opkg_message(conf, OPKG_NOTICE,
748 "Not installing %s (%s) on %s -- already installed.\n",
749 pkg->name, new_version, old_pkg->dest->name);
757 char message_out[15] ;
758 memset(message_out,'\x0',15);
760 strncpy( message_out,"Upgrading ",strlen("Upgrading ") );
762 strncpy( message_out,"Installing ",strlen("Installing ") );
763 char *version = pkg_version_str_alloc(pkg);
765 opkg_message(conf, OPKG_NOTICE,
766 "%s%s (%s) to %s...\n", message_out,
767 pkg->name, version, pkg->dest->name);
774 * @brief Really install a pkg_t
776 int opkg_install_pkg(opkg_conf_t *conf, pkg_t *pkg, int from_upgrade)
780 pkg_t *old_pkg = NULL;
781 pkg_vec_t *replacees;
782 abstract_pkg_t *ab_pkg = NULL;
790 message = 1; /* Coming from an upgrade, and should change the output message */
793 opkg_message(conf, OPKG_ERROR,
794 "INTERNAL ERROR: null pkg passed to opkg_install_pkg\n");
795 return OPKG_INSTALL_ERR_INTERNAL;
798 opkg_message(conf, OPKG_DEBUG2, "Function: %s calling pkg_arch_supported %s \n", __FUNCTION__, __FUNCTION__);
800 if (!pkg_arch_supported(conf, pkg)) {
801 opkg_message(conf, OPKG_ERROR, "INTERNAL ERROR: architecture %s for pkg %s is unsupported.\n",
802 pkg->architecture, pkg->name);
803 return OPKG_INSTALL_ERR_INTERNAL;
805 if (pkg->state_status == SS_INSTALLED && conf->force_reinstall == 0 && conf->nodeps == 0) {
806 err = satisfy_dependencies_for(conf, pkg);
807 if (err) { return OPKG_INSTALL_ERR_DEPENDENCIES; }
809 opkg_message(conf, OPKG_NOTICE,
810 "Package %s is already installed in %s.\n",
811 pkg->name, pkg->dest->name);
815 if (pkg->dest == NULL) {
816 pkg->dest = conf->default_dest;
819 old_pkg = pkg_hash_fetch_installed_by_name(&conf->pkg_hash, pkg->name);
821 err = opkg_install_check_downgrade(conf, pkg, old_pkg, message);
822 if (err) { return OPKG_INSTALL_ERR_NO_DOWNGRADE; }
824 pkg->state_want = SW_INSTALL;
826 old_pkg->state_want = SW_DEINSTALL; /* needed for check_data_file_clashes of dependences */
830 /* Abhaya: conflicts check */
831 err = check_conflicts_for(conf, pkg);
832 if (err) { return OPKG_INSTALL_ERR_CONFLICTS; }
834 /* this setup is to remove the upgrade scenario in the end when
835 installing pkg A, A deps B & B deps on A. So both B and A are
836 installed. Then A's installation is started resulting in an
837 uncecessary upgrade */
838 if (pkg->state_status == SS_INSTALLED
839 && conf->force_reinstall == 0) return 0;
841 err = verify_pkg_installable(conf, pkg);
842 if (err) { return OPKG_INSTALL_ERR_NO_SPACE; }
844 if (pkg->local_filename == NULL) {
845 err = opkg_download_pkg(conf, pkg, conf->tmp_dir);
847 opkg_message(conf, OPKG_ERROR,
848 "Failed to download %s. Perhaps you need to run 'opkg update'?\n",
850 return OPKG_INSTALL_ERR_DOWNLOAD;
854 /* check that the repository is valid */
855 #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
856 char *list_file_name, *sig_file_name, *lists_dir;
858 /* check to ensure the package has come from a repository */
859 if (conf->check_signature && pkg->src)
861 sprintf_alloc (&lists_dir, "%s",
862 (conf->restrict_to_default_dest)
863 ? conf->default_dest->lists_dir
865 sprintf_alloc (&list_file_name, "%s/%s", lists_dir, pkg->src->name);
866 sprintf_alloc (&sig_file_name, "%s/%s.sig", lists_dir, pkg->src->name);
868 if (file_exists (sig_file_name))
870 if (opkg_verify_file (conf, list_file_name, sig_file_name)){
871 opkg_message(conf, OPKG_ERROR, "Failed to verify the signature of: %s\n",
873 return OPKG_INSTALL_ERR_SIGNATURE;
876 opkg_message(conf, OPKG_ERROR, "Signature file is missing. "
877 "Perhaps you need to run 'opkg update'?\n");
878 return OPKG_INSTALL_ERR_SIGNATURE;
882 free (list_file_name);
883 free (sig_file_name);
887 /* Check for md5 values */
890 file_md5 = file_md5sum_alloc(pkg->local_filename);
891 if (file_md5 && strcmp(file_md5, pkg->md5sum))
893 opkg_message(conf, OPKG_ERROR,
894 "Package %s md5sum mismatch. Either the opkg or the package index are corrupt. Try 'opkg update'.\n",
897 return OPKG_INSTALL_ERR_MD5;
904 /* Check for sha256 value */
907 file_sha256 = file_sha256sum_alloc(pkg->local_filename);
908 if (file_sha256 && strcmp(file_sha256, pkg->sha256sum))
910 opkg_message(conf, OPKG_ERROR,
911 "Package %s sha256sum mismatch. Either the opkg or the package index are corrupt. Try 'opkg update'.\n",
914 return OPKG_INSTALL_ERR_SHA256;
921 if (pkg->tmp_unpack_dir == NULL) {
922 unpack_pkg_control_files(conf, pkg);
925 /* We should update the filelist here, so that upgrades of packages that split will not fail. -Jamey 27-MAR-03 */
926 /* Pigi: check if it will pass from here when replacing. It seems to fail */
927 /* That's rather strange that files don't change owner. Investigate !!!!!!*/
928 err = update_file_ownership(conf, pkg, old_pkg);
929 if (err) { return OPKG_ERR_UNKNOWN; }
931 if (conf->nodeps == 0) {
932 err = satisfy_dependencies_for(conf, pkg);
933 if (err) { return OPKG_INSTALL_ERR_DEPENDENCIES; }
934 if (pkg->state_status == SS_UNPACKED)
935 /* Circular dependency has installed it for us. */
939 replacees = pkg_vec_alloc();
940 pkg_get_installed_replacees(conf, pkg, replacees);
942 /* this next section we do with SIGINT blocked to prevent inconsistency between opkg database and filesystem */
944 sigset_t newset, oldset;
946 sigemptyset(&newset);
947 sigaddset(&newset, SIGINT);
948 sigprocmask(SIG_BLOCK, &newset, &oldset);
950 opkg_state_changed++;
951 pkg->state_flag |= SF_FILELIST_CHANGED;
954 pkg_remove_orphan_dependent(conf, pkg, old_pkg);
956 /* XXX: BUG: we really should treat replacement more like an upgrade
957 * Instead, we're going to remove the replacees
959 err = pkg_remove_installed_replacees(conf, replacees);
960 if (err) goto UNWIND_REMOVE_INSTALLED_REPLACEES;
962 err = prerm_upgrade_old_pkg(conf, pkg, old_pkg);
963 if (err) goto UNWIND_PRERM_UPGRADE_OLD_PKG;
965 err = prerm_deconfigure_conflictors(conf, pkg, replacees);
966 if (err) goto UNWIND_PRERM_DECONFIGURE_CONFLICTORS;
968 err = preinst_configure(conf, pkg, old_pkg);
969 if (err) goto UNWIND_PREINST_CONFIGURE;
971 err = backup_modified_conffiles(conf, pkg, old_pkg);
972 if (err) goto UNWIND_BACKUP_MODIFIED_CONFFILES;
974 err = check_data_file_clashes(conf, pkg, old_pkg);
975 if (err) goto UNWIND_CHECK_DATA_FILE_CLASHES;
977 err = postrm_upgrade_old_pkg(conf, pkg, old_pkg);
978 if (err) goto UNWIND_POSTRM_UPGRADE_OLD_PKG;
980 if (conf->noaction) return 0;
982 /* point of no return: no unwinding after this */
983 if (old_pkg && !conf->force_reinstall) {
984 old_pkg->state_want = SW_DEINSTALL;
986 if (old_pkg->state_flag & SF_NOPRUNE) {
987 opkg_message(conf, OPKG_INFO,
988 " not removing obsolesced files because package marked noprune\n");
990 opkg_message(conf, OPKG_INFO,
991 " removing obsolesced files\n");
992 remove_obsolesced_files(conf, pkg, old_pkg);
994 /* removing files from old package, to avoid ghost files */
995 remove_data_files_and_list(conf, old_pkg);
996 /* Pigi : It should be better to remove also maintainer and postrem scripts here, just in case*/
997 remove_maintainer_scripts_except_postrm(conf, old_pkg);
998 remove_postrm(conf, old_pkg);
1004 opkg_message(conf, OPKG_INFO,
1005 " installing maintainer scripts\n");
1006 install_maintainer_scripts(conf, pkg, old_pkg);
1008 /* the following just returns 0 */
1009 remove_disappeared(conf, pkg);
1011 opkg_message(conf, OPKG_INFO,
1012 " installing data files\n");
1013 install_data_files(conf, pkg);
1015 /* read comments from function for detail but I will execute this here as all other tests are ok.*/
1016 err = check_data_file_clashes_change(conf, pkg, old_pkg);
1018 opkg_message(conf, OPKG_INFO,
1019 " resolving conf files\n");
1020 resolve_conffiles(conf, pkg);
1022 pkg->state_status = SS_UNPACKED;
1023 old_state_flag = pkg->state_flag;
1024 pkg->state_flag &= ~SF_PREFER;
1025 opkg_message(conf, OPKG_DEBUG, " pkg=%s old_state_flag=%x state_flag=%x\n", pkg->name, old_state_flag, pkg->state_flag);
1027 if (old_pkg && !conf->force_reinstall) {
1028 old_pkg->state_status = SS_NOT_INSTALLED;
1031 time(&pkg->installed_time);
1033 ab_pkg = pkg->parent;
1035 ab_pkg->state_status = pkg->state_status;
1037 opkg_message(conf, OPKG_INFO, "Done.\n");
1039 sigprocmask(SIG_UNBLOCK, &newset, &oldset);
1040 pkg_vec_free (replacees);
1044 UNWIND_POSTRM_UPGRADE_OLD_PKG:
1045 postrm_upgrade_old_pkg_unwind(conf, pkg, old_pkg);
1046 UNWIND_CHECK_DATA_FILE_CLASHES:
1047 check_data_file_clashes_unwind(conf, pkg, old_pkg);
1048 UNWIND_BACKUP_MODIFIED_CONFFILES:
1049 backup_modified_conffiles_unwind(conf, pkg, old_pkg);
1050 UNWIND_PREINST_CONFIGURE:
1051 preinst_configure_unwind(conf, pkg, old_pkg);
1052 UNWIND_PRERM_DECONFIGURE_CONFLICTORS:
1053 prerm_deconfigure_conflictors_unwind(conf, pkg, replacees);
1054 UNWIND_PRERM_UPGRADE_OLD_PKG:
1055 prerm_upgrade_old_pkg_unwind(conf, pkg, old_pkg);
1056 UNWIND_REMOVE_INSTALLED_REPLACEES:
1057 pkg_remove_installed_replacees_unwind(conf, replacees);
1059 opkg_message(conf, OPKG_INFO,
1062 sigprocmask(SIG_UNBLOCK, &newset, &oldset);
1064 pkg_vec_free (replacees);
1065 return OPKG_ERR_UNKNOWN;
1069 static int prerm_upgrade_old_pkg(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1071 /* DPKG_INCOMPATIBILITY:
1072 dpkg does some things here that we don't do yet. Do we care?
1074 1. If a version of the package is already installed, call
1075 old-prerm upgrade new-version
1076 2. If the script runs but exits with a non-zero exit status
1077 new-prerm failed-upgrade old-version
1078 Error unwind, for both the above cases:
1079 old-postinst abort-upgrade new-version
1084 static int prerm_upgrade_old_pkg_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1086 /* DPKG_INCOMPATIBILITY:
1087 dpkg does some things here that we don't do yet. Do we care?
1088 (See prerm_upgrade_old_package for details)
1093 static int prerm_deconfigure_conflictors(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *conflictors)
1095 /* DPKG_INCOMPATIBILITY:
1096 dpkg does some things here that we don't do yet. Do we care?
1097 2. If a 'conflicting' package is being removed at the same time:
1098 1. If any packages depended on that conflicting package and
1099 --auto-deconfigure is specified, call, for each such package:
1100 deconfigured's-prerm deconfigure \
1101 in-favour package-being-installed version \
1102 removing conflicting-package version
1104 deconfigured's-postinst abort-deconfigure \
1105 in-favour package-being-installed-but-failed version \
1106 removing conflicting-package version
1108 The deconfigured packages are marked as requiring
1109 configuration, so that if --install is used they will be
1110 configured again if possible.
1111 2. To prepare for removal of the conflicting package, call:
1112 conflictor's-prerm remove in-favour package new-version
1114 conflictor's-postinst abort-remove in-favour package new-version
1119 static int prerm_deconfigure_conflictors_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *conflictors)
1121 /* DPKG_INCOMPATIBILITY: dpkg does some things here that we don't
1122 do yet. Do we care? (See prerm_deconfigure_conflictors for
1127 static int preinst_configure(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1133 char *old_version = pkg_version_str_alloc(old_pkg);
1134 sprintf_alloc(&preinst_args, "upgrade %s", old_version);
1136 } else if (pkg->state_status == SS_CONFIG_FILES) {
1137 char *pkg_version = pkg_version_str_alloc(pkg);
1138 sprintf_alloc(&preinst_args, "install %s", pkg_version);
1141 preinst_args = xstrdup("install");
1144 err = pkg_run_script(conf, pkg, "preinst", preinst_args);
1146 opkg_message(conf, OPKG_ERROR,
1147 "Aborting installation of %s\n", pkg->name);
1156 static int preinst_configure_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1158 /* DPKG_INCOMPATIBILITY:
1159 dpkg does the following error unwind, should we?
1160 pkg->postrm abort-upgrade old-version
1161 OR pkg->postrm abort-install old-version
1162 OR pkg->postrm abort-install
1167 static int backup_modified_conffiles(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1170 conffile_list_elt_t *iter;
1173 if (conf->noaction) return 0;
1175 /* Backup all modified conffiles */
1177 for (iter = nv_pair_list_first(&old_pkg->conffiles); iter; iter = nv_pair_list_next(&old_pkg->conffiles, iter)) {
1181 cf_name = root_filename_alloc(conf, cf->name);
1183 /* Don't worry if the conffile is just plain gone */
1184 if (file_exists(cf_name) && conffile_has_been_modified(conf, cf)) {
1185 err = backup_make_backup(conf, cf_name);
1194 /* Backup all conffiles that were not conffiles in old_pkg */
1195 for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
1197 cf = (conffile_t *)iter->data;
1198 cf_name = root_filename_alloc(conf, cf->name);
1199 /* Ignore if this was a conffile in old_pkg as well */
1200 if (pkg_get_conffile(old_pkg, cf->name)) {
1204 if (file_exists(cf_name) && (! backup_exists_for(cf_name))) {
1205 err = backup_make_backup(conf, cf_name);
1216 static int backup_modified_conffiles_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1218 conffile_list_elt_t *iter;
1221 for (iter = nv_pair_list_first(&old_pkg->conffiles); iter; iter = nv_pair_list_next(&old_pkg->conffiles, iter)) {
1222 backup_remove(((nv_pair_t *)iter->data)->name);
1226 for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
1227 backup_remove(((nv_pair_t *)iter->data)->name);
1234 static int check_data_file_clashes(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1236 /* DPKG_INCOMPATIBILITY:
1237 opkg takes a slightly different approach than dpkg at this
1238 point. dpkg installs each file in the new package while
1239 creating a backup for any file that is replaced, (so that it
1240 can unwind if necessary). To avoid complexity and redundant
1241 storage, opkg doesn't do any installation until later, (at the
1242 point at which dpkg removes the backups.
1244 But, we do have to check for data file clashes, since after
1245 installing a package with a file clash, removing either of the
1246 packages involved in the clash has the potential to break the
1249 str_list_t *files_list;
1250 str_list_elt_t *iter, *niter;
1254 files_list = pkg_get_installed_files(conf, pkg);
1255 for (iter = str_list_first(files_list), niter = str_list_next(files_list, iter);
1257 iter = niter, niter = str_list_next(files_list, iter)) {
1258 char *root_filename;
1259 char *filename = (char *) iter->data;
1260 root_filename = root_filename_alloc(conf, filename);
1261 if (file_exists(root_filename) && (! file_is_dir(root_filename))) {
1264 /* Pre-existing conffiles are OK */
1265 /* @@@@ should have way to check that it is a conffile -Jamey */
1266 if (backup_exists_for(root_filename)) {
1270 /* Pre-existing files are OK if force-overwrite was asserted. */
1271 if (conf->force_overwrite) {
1272 /* but we need to change who owns this file */
1273 file_hash_set_file_owner(conf, filename, pkg);
1277 owner = file_hash_get_file_owner(conf, filename);
1279 /* Pre-existing files are OK if owned by the pkg being upgraded. */
1280 if (owner && old_pkg) {
1281 if (strcmp(owner->name, old_pkg->name) == 0) {
1286 /* Pre-existing files are OK if owned by a package replaced by new pkg. */
1288 opkg_message(conf, OPKG_DEBUG2, "Checking for replaces for %s in package %s\n", filename, owner->name);
1289 if (pkg_replaces(pkg, owner)) {
1292 /* If the file that would be installed is owned by the same package, ( as per a reinstall or similar )
1293 then it's ok to overwrite. */
1294 if (strcmp(owner->name,pkg->name)==0){
1295 opkg_message(conf, OPKG_INFO, "Replacing pre-existing file %s owned by package %s\n", filename, owner->name);
1300 /* Pre-existing files are OK if they are obsolete */
1301 obs = hash_table_get(&conf->obs_file_hash, filename);
1303 opkg_message(conf, OPKG_INFO, "Pre-exiting file %s is obsolete. obs_pkg=%s\n", filename, obs->name);
1307 /* We have found a clash. */
1308 opkg_message(conf, OPKG_ERROR,
1309 "Package %s wants to install file %s\n"
1310 "\tBut that file is already provided by package ",
1311 pkg->name, filename);
1313 opkg_message(conf, OPKG_ERROR,
1314 "%s\n", owner->name);
1316 opkg_message(conf, OPKG_ERROR,
1317 "<no package>\nPlease move this file out of the way and try again.\n");
1321 free(root_filename);
1323 pkg_free_installed_files(pkg);
1328 static int check_data_file_clashes_change(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1330 /* Basically that's the worst hack I could do to be able to change ownership of
1331 file list, but, being that we have no way to unwind the mods, due to structure
1332 of hash table, probably is the quickest hack too, whishing it would not slow-up thing too much.
1333 What we do here is change the ownership of file in hash if a replace ( or similar events
1335 Only the action that are needed to change name should be considered.
1336 @@@ To change after 1.0 release.
1338 str_list_t *files_list;
1339 str_list_elt_t *iter, *niter;
1341 char *root_filename = NULL;
1345 files_list = pkg_get_installed_files(conf, pkg);
1346 for (iter = str_list_first(files_list), niter = str_list_next(files_list, iter);
1348 iter = niter, niter = str_list_next(files_list, niter)) {
1349 char *filename = (char *) iter->data;
1350 if (root_filename) {
1351 free(root_filename);
1352 root_filename = NULL;
1354 root_filename = root_filename_alloc(conf, filename);
1355 if (file_exists(root_filename) && (! file_is_dir(root_filename))) {
1358 owner = file_hash_get_file_owner(conf, filename);
1360 if (conf->force_overwrite) {
1361 /* but we need to change who owns this file */
1362 file_hash_set_file_owner(conf, filename, pkg);
1367 /* Pre-existing files are OK if owned by a package replaced by new pkg. */
1369 if (pkg_replaces(pkg, owner)) {
1370 /* It's now time to change the owner of that file.
1371 It has been "replaced" from the new "Replaces", then I need to inform lists file about that. */
1372 opkg_message(conf, OPKG_INFO, "Replacing pre-existing file %s owned by package %s\n", filename, owner->name);
1373 file_hash_set_file_owner(conf, filename, pkg);
1380 if (root_filename) {
1381 free(root_filename);
1382 root_filename = NULL;
1384 pkg_free_installed_files(pkg);
1389 static int check_data_file_clashes_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1391 /* Nothing to do since check_data_file_clashes doesn't change state */
1395 static int postrm_upgrade_old_pkg(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1397 /* DPKG_INCOMPATIBILITY: dpkg does the following here, should we?
1398 1. If the package is being upgraded, call
1399 old-postrm upgrade new-version
1400 2. If this fails, attempt:
1401 new-postrm failed-upgrade old-version
1402 Error unwind, for both cases:
1403 old-preinst abort-upgrade new-version */
1407 static int postrm_upgrade_old_pkg_unwind(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1409 /* DPKG_INCOMPATIBILITY:
1410 dpkg does some things here that we don't do yet. Do we care?
1411 (See postrm_upgrade_old_pkg for details)
1416 static int remove_obsolesced_files(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1419 str_list_t *old_files;
1421 str_list_t *new_files;
1423 hash_table_t new_files_table;
1425 if (old_pkg == NULL) {
1429 old_files = pkg_get_installed_files(conf, old_pkg);
1430 new_files = pkg_get_installed_files(conf, pkg);
1432 new_files_table.entries = NULL;
1433 hash_table_init("new_files" , &new_files_table, 20);
1434 for (nf = str_list_first(new_files); nf; nf = str_list_next(new_files, nf)) {
1436 hash_table_insert(&new_files_table, nf->data, nf->data);
1439 for (of = str_list_first(old_files); of; of = str_list_next(old_files, of)) {
1442 old = (char *)of->data;
1443 new = (char *) hash_table_get (&new_files_table, old);
1447 if (file_is_dir(old)) {
1450 owner = file_hash_get_file_owner(conf, old);
1451 if (owner != old_pkg) {
1452 /* in case obsolete file no longer belongs to old_pkg */
1456 /* old file is obsolete */
1457 opkg_message(conf, OPKG_INFO,
1458 " removing obsolete file %s\n", old);
1459 if (!conf->noaction) {
1462 opkg_message(conf, OPKG_ERROR, " Warning: remove %s failed: %s\n", old,
1468 hash_table_deinit(&new_files_table);
1469 pkg_free_installed_files(old_pkg);
1470 pkg_free_installed_files(pkg);
1475 static int install_maintainer_scripts(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
1480 sprintf_alloc(&prefix, "%s.", pkg->name);
1481 ret = pkg_extract_control_files_to_dir_with_prefix(pkg,
1482 pkg->dest->info_dir,
1488 static int remove_disappeared(opkg_conf_t *conf, pkg_t *pkg)
1490 /* DPKG_INCOMPATIBILITY:
1491 This is a fairly sophisticated dpkg operation. Shall we
1494 /* Any packages all of whose files have been overwritten during the
1495 installation, and which aren't required for dependencies, are
1496 considered to have been removed. For each such package
1497 1. disappearer's-postrm disappear overwriter overwriter-version
1498 2. The package's maintainer scripts are removed
1499 3. It is noted in the status database as being in a sane state,
1500 namely not installed (any conffiles it may have are ignored,
1501 rather than being removed by dpkg). Note that disappearing
1502 packages do not have their prerm called, because dpkg doesn't
1503 know in advance that the package is going to vanish.
1508 static int install_data_files(opkg_conf_t *conf, pkg_t *pkg)
1512 /* opkg takes a slightly different approach to data file backups
1513 than dpkg. Rather than removing backups at this point, we
1514 actually do the data file installation now. See comments in
1515 check_data_file_clashes() for more details. */
1517 opkg_message(conf, OPKG_INFO,
1518 " extracting data files to %s\n", pkg->dest->root_dir);
1519 err = pkg_extract_data_files_to_dir(pkg, pkg->dest->root_dir);
1524 /* XXX: BUG or FEATURE : We are actually loosing the Essential flag,
1525 so we can't save ourself from removing important packages
1526 At this point we (should) have extracted the .control file, so it
1527 would be a good idea to reload the data in it, and set the Essential
1528 state in *pkg. From now on the Essential is back in status file and
1529 we can protect again.
1530 We should operate this way:
1531 fopen the file ( pkg->dest->root_dir/pkg->name.control )
1532 check for "Essential" in it
1533 set the value in pkg->essential.
1534 This new routine could be useful also for every other flag
1536 set_flags_from_control(conf, pkg) ;
1538 opkg_message(conf, OPKG_DEBUG, " Calling pkg_write_filelist from %s\n", __FUNCTION__);
1539 err = pkg_write_filelist(conf, pkg);
1543 /* XXX: FEATURE: opkg should identify any files which existed
1544 before installation and which were overwritten, (see
1545 check_data_file_clashes()). What it must do is remove any such
1546 files from the filelist of the old package which provided the
1547 file. Otherwise, if the old package were removed at some point
1548 it would break the new package. Removing the new package will
1549 also break the old one, but this cannot be helped since the old
1550 package's file has already been deleted. This is the importance
1551 of check_data_file_clashes(), and only allowing opkg to install
1552 a clashing package with a user force. */
1557 static int resolve_conffiles(opkg_conf_t *conf, pkg_t *pkg)
1559 conffile_list_elt_t *iter;
1564 if (conf->noaction) return 0;
1566 for (iter = nv_pair_list_first(&pkg->conffiles); iter; iter = nv_pair_list_next(&pkg->conffiles, iter)) {
1567 char *root_filename;
1568 cf = (conffile_t *)iter->data;
1569 root_filename = root_filename_alloc(conf, cf->name);
1571 /* Might need to initialize the md5sum for each conffile */
1572 if (cf->value == NULL) {
1573 cf->value = file_md5sum_alloc(root_filename);
1576 if (!file_exists(root_filename)) {
1577 free(root_filename);
1581 cf_backup = backup_filename_alloc(root_filename);
1584 if (file_exists(cf_backup)) {
1585 /* Let's compute md5 to test if files are changed */
1586 md5sum = file_md5sum_alloc(cf_backup);
1587 if (md5sum && cf->value && strcmp(cf->value,md5sum) != 0 ) {
1588 if (conf->force_maintainer) {
1589 opkg_message(conf, OPKG_NOTICE, "Conffile %s using maintainer's setting.\n", cf_backup);
1590 } else if (conf->force_defaults
1591 || user_prefers_old_conffile(root_filename, cf_backup) ) {
1592 rename(cf_backup, root_filename);
1601 free(root_filename);
1607 static int user_prefers_old_conffile(const char *file_name, const char *backup)
1610 const char *short_file_name;
1612 short_file_name = strrchr(file_name, '/');
1613 if (short_file_name) {
1616 short_file_name = file_name;
1620 response = get_user_response(" Configuration file '%s'\n"
1621 " ==> File on system created by you or by a script.\n"
1622 " ==> File also in package provided by package maintainer.\n"
1623 " What would you like to do about it ? Your options are:\n"
1624 " Y or I : install the package maintainer's version\n"
1625 " N or O : keep your currently-installed version\n"
1626 " D : show the differences between the versions (if diff is installed)\n"
1627 " The default action is to keep your current version.\n"
1628 " *** %s (Y/I/N/O/D) [default=N] ? ", file_name, short_file_name);
1630 if (response == NULL)
1633 if (strcmp(response, "y") == 0
1634 || strcmp(response, "i") == 0
1635 || strcmp(response, "yes") == 0) {
1640 if (strcmp(response, "d") == 0) {
1641 const char *argv[] = {"diff", "-u", backup, file_name, NULL};
1643 printf(" [Press ENTER to continue]\n");
1644 response = file_read_line_alloc(stdin);
1654 static char *backup_filename_alloc(const char *file_name)
1658 sprintf_alloc(&backup, "%s%s", file_name, OPKG_BACKUP_SUFFIX);
1663 int backup_make_backup(opkg_conf_t *conf, const char *file_name)
1668 backup = backup_filename_alloc(file_name);
1669 err = file_copy(file_name, backup);
1671 opkg_message(conf, OPKG_ERROR,
1672 "%s: Failed to copy %s to %s\n",
1673 __FUNCTION__, file_name, backup);
1681 static int backup_exists_for(const char *file_name)
1686 backup = backup_filename_alloc(file_name);
1688 ret = file_exists(backup);
1695 static int backup_remove(const char *file_name)
1699 backup = backup_filename_alloc(file_name);