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-rw-r--r--lib/libalpm/trans.c481
1 files changed, 370 insertions, 111 deletions
diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index 009ec7f1..d9988265 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -5,7 +5,7 @@
* Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
* Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
* Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
- *
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
@@ -18,7 +18,7 @@
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
@@ -27,7 +27,12 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
-#include <libintl.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/statvfs.h>
+#include <unistd.h>
+#include <errno.h>
/* libalpm */
#include "trans.h"
@@ -43,19 +48,188 @@
#include "alpm.h"
#include "deps.h"
#include "cache.h"
-#include "provide.h"
-pmtrans_t *_alpm_trans_new()
+/** \addtogroup alpm_trans Transaction Functions
+ * @brief Functions to manipulate libalpm transactions
+ * @{
+ */
+
+/** Initialize the transaction.
+ * @param type type of the transaction
+ * @param flags flags of the transaction (like nodeps, etc)
+ * @param event event callback function pointer
+ * @param conv question callback function pointer
+ * @param progress progress callback function pointer
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_init(pmtranstype_t type, pmtransflag_t flags,
+ alpm_trans_cb_event event, alpm_trans_cb_conv conv,
+ alpm_trans_cb_progress progress)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ ASSERT(handle->trans == NULL, RET_ERR(PM_ERR_TRANS_NOT_NULL, -1));
+
+ /* lock db */
+ handle->lckfd = _alpm_lckmk();
+ if(handle->lckfd == -1) {
+ RET_ERR(PM_ERR_HANDLE_LOCK, -1);
+ }
+
+ handle->trans = _alpm_trans_new();
+ if(handle->trans == NULL) {
+ RET_ERR(PM_ERR_MEMORY, -1);
+ }
+
+ return(_alpm_trans_init(handle->trans, type, flags, event, conv, progress));
+}
+
+/** Search for packages to upgrade and add them to the transaction.
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_sysupgrade()
+{
+ pmtrans_t *trans;
+
+ ALPM_LOG_FUNC;
+
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ trans = handle->trans;
+ ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
+ ASSERT(trans->type == PM_TRANS_TYPE_SYNC, RET_ERR(PM_ERR_TRANS_TYPE, -1));
+
+ return(_alpm_trans_sysupgrade(trans));
+}
+
+/** Add a target to the transaction.
+ * @param target the name of the target to add
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_addtarget(char *target)
+{
+ pmtrans_t *trans;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+ ASSERT(target != NULL && strlen(target) != 0, RET_ERR(PM_ERR_WRONG_ARGS, -1));
+
+ trans = handle->trans;
+ ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
+
+ return(_alpm_trans_addtarget(trans, target));
+}
+
+/** Prepare a transaction.
+ * @param data the address of an alpm_list where detailed description
+ * of an error can be dumped (ie. list of conflicting files)
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_prepare(alpm_list_t **data)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+ ASSERT(data != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
+
+ ASSERT(handle->trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(handle->trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
+
+ return(_alpm_trans_prepare(handle->trans, data));
+}
+
+/** Commit a transaction.
+ * @param data the address of an alpm_list where detailed description
+ * of an error can be dumped (ie. list of conflicting files)
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_commit(alpm_list_t **data)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ ASSERT(handle->trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(handle->trans->state == STATE_PREPARED, RET_ERR(PM_ERR_TRANS_NOT_PREPARED, -1));
+
+ return(_alpm_trans_commit(handle->trans, data));
+}
+
+/** Interrupt a transaction.
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_interrupt()
+{
+ pmtrans_t *trans;
+
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ trans = handle->trans;
+ ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(trans->state == STATE_COMMITING || trans->state == STATE_INTERRUPTED,
+ RET_ERR(PM_ERR_TRANS_TYPE, -1));
+
+ trans->state = STATE_INTERRUPTED;
+
+ return(0);
+}
+
+/** Release a transaction.
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
+int SYMEXPORT alpm_trans_release()
{
pmtrans_t *trans;
ALPM_LOG_FUNC;
- if((trans = (pmtrans_t *)malloc(sizeof(pmtrans_t))) == NULL) {
- _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmtrans_t));
- return(NULL);
+ /* Sanity checks */
+ ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
+
+ trans = handle->trans;
+ ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
+ ASSERT(trans->state != STATE_IDLE, RET_ERR(PM_ERR_TRANS_NULL, -1));
+
+ _alpm_trans_free(trans);
+ handle->trans = NULL;
+
+ /* unlock db */
+ if(handle->lckfd != -1) {
+ close(handle->lckfd);
+ handle->lckfd = -1;
+ }
+ if(_alpm_lckrm()) {
+ _alpm_log(PM_LOG_WARNING, _("could not remove lock file %s\n"),
+ alpm_option_get_lockfile());
+ alpm_logaction("warning: could not remove lock file %s\n",
+ alpm_option_get_lockfile());
}
+ return(0);
+}
+
+/** @} */
+
+pmtrans_t *_alpm_trans_new()
+{
+ pmtrans_t *trans;
+
+ ALPM_LOG_FUNC;
+
+ CALLOC(trans, 1, sizeof(pmtrans_t), RET_ERR(PM_ERR_MEMORY, NULL));
+
trans->targets = NULL;
trans->packages = NULL;
trans->skip_add = NULL;
@@ -70,10 +244,8 @@ pmtrans_t *_alpm_trans_new()
return(trans);
}
-void _alpm_trans_free(void *data)
+void _alpm_trans_free(pmtrans_t *trans)
{
- pmtrans_t *trans = data;
-
ALPM_LOG_FUNC;
if(trans == NULL) {
@@ -82,14 +254,11 @@ void _alpm_trans_free(void *data)
FREELIST(trans->targets);
if(trans->type == PM_TRANS_TYPE_SYNC) {
- alpm_list_t *i;
- for(i = trans->packages; i; i = i->next) {
- FREESYNC(i->data);
- }
- FREELIST(trans->packages);
+ alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_sync_free);
} else {
- FREELISTPKGS(trans->packages);
+ alpm_list_free_inner(trans->packages, (alpm_list_fn_free)_alpm_pkg_free);
}
+ alpm_list_free(trans->packages);
FREELIST(trans->skip_add);
FREELIST(trans->skip_remove);
@@ -123,9 +292,15 @@ int _alpm_trans_sysupgrade(pmtrans_t *trans)
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
- return(_alpm_sync_sysupgrade(trans, handle->db_local, handle->dbs_sync));
+ return(_alpm_sync_sysupgrade(trans, handle->db_local, handle->dbs_sync,
+ &(trans->packages)));
}
+/** Add a target to the transaction.
+ * @param trans the current transaction
+ * @param target the name of the target to add
+ * @return 0 on success, -1 on error (pm_errno is set accordingly)
+ */
int _alpm_trans_addtarget(pmtrans_t *trans, char *target)
{
ALPM_LOG_FUNC;
@@ -148,14 +323,15 @@ int _alpm_trans_addtarget(pmtrans_t *trans, char *target)
}
break;
case PM_TRANS_TYPE_REMOVE:
+ case PM_TRANS_TYPE_REMOVEUPGRADE:
if(_alpm_remove_loadtarget(trans, handle->db_local, target) == -1) {
- /* pm_errno is set by remove_loadtarget() */
+ /* pm_errno is set by _alpm_remove_loadtarget() */
return(-1);
}
break;
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_addtarget(trans, handle->db_local, handle->dbs_sync, target) == -1) {
- /* pm_errno is set by sync_loadtarget() */
+ /* pm_errno is set by _alpm_sync_loadtarget() */
return(-1);
}
break;
@@ -189,6 +365,7 @@ int _alpm_trans_prepare(pmtrans_t *trans, alpm_list_t **data)
}
break;
case PM_TRANS_TYPE_REMOVE:
+ case PM_TRANS_TYPE_REMOVEUPGRADE:
if(_alpm_remove_prepare(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_remove_prepare() */
return(-1);
@@ -228,13 +405,14 @@ int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data)
case PM_TRANS_TYPE_ADD:
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_commit(trans, handle->db_local) == -1) {
- /* pm_errno is set by _alpm_add_prepare() */
+ /* pm_errno is set by _alpm_add_commit() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
+ case PM_TRANS_TYPE_REMOVEUPGRADE:
if(_alpm_remove_commit(trans, handle->db_local) == -1) {
- /* pm_errno is set by _alpm_remove_prepare() */
+ /* pm_errno is set by _alpm_remove_commit() */
return(-1);
}
break;
@@ -251,118 +429,199 @@ int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data)
return(0);
}
-int _alpm_trans_update_depends(pmtrans_t *trans, pmpkg_t *pkg)
+/* A cheap grep for text files, returns 1 if a substring
+ * was found in the text file fn, 0 if it wasn't
+ */
+static int grep(const char *fn, const char *needle)
+{
+ FILE *fp;
+
+ if((fp = fopen(fn, "r")) == NULL) {
+ return(0);
+ }
+ while(!feof(fp)) {
+ char line[1024];
+ fgets(line, 1024, fp);
+ if(feof(fp)) {
+ continue;
+ }
+ if(strstr(line, needle)) {
+ fclose(fp);
+ return(1);
+ }
+ }
+ fclose(fp);
+ return(0);
+}
+
+int _alpm_runscriptlet(const char *root, const char *installfn,
+ const char *script, const char *ver,
+ const char *oldver, pmtrans_t *trans)
{
- alpm_list_t *i, *j;
- alpm_list_t *depends = NULL;
- const char *pkgname;
- pmdb_t *localdb;
+ char scriptfn[PATH_MAX];
+ char cmdline[PATH_MAX];
+ char tmpdir[PATH_MAX];
+ char cwd[PATH_MAX];
+ char *scriptpath;
+ struct stat buf;
+ pid_t pid;
+ int clean_tmpdir = 0;
+ int restore_cwd = 0;
+ int retval = 0;
ALPM_LOG_FUNC;
-
- /* Sanity checks */
- ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
- ASSERT(pkg != NULL, RET_ERR(PM_ERR_PKG_INVALID, -1));
- pkgname = alpm_pkg_get_name(pkg);
- depends = alpm_pkg_get_depends(pkg);
+ if(stat(installfn, &buf)) {
+ /* not found */
+ _alpm_log(PM_LOG_DEBUG, "scriptlet '%s' not found\n", installfn);
+ return(0);
+ }
- if(depends) {
- _alpm_log(PM_LOG_DEBUG, _("updating dependency packages 'requiredby' fields for %s-%s"),
- pkgname, pkg->version);
+ snprintf(tmpdir, PATH_MAX, "%sbin/sh", root);
+ if(stat(tmpdir, &buf)) {
+ /* not found */
+ _alpm_log(PM_LOG_ERROR, _("No /bin/sh in root dir (%s), aborting scriptlet\n"), root);
+ return(0);
+ }
+
+ /* creates a directory in $root/tmp/ for copying/extracting the scriptlet */
+ snprintf(tmpdir, PATH_MAX, "%stmp/", root);
+ if(stat(tmpdir, &buf)) {
+ _alpm_makepath(tmpdir);
+ }
+ snprintf(tmpdir, PATH_MAX, "%stmp/alpm_XXXXXX", root);
+ if(mkdtemp(tmpdir) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not create temp directory\n"));
+ return(1);
} else {
- _alpm_log(PM_LOG_DEBUG, _("package has no dependencies, no other packages to update"));
+ clean_tmpdir = 1;
}
- localdb = alpm_option_get_localdb();
- for(i = depends; i; i = i->next) {
- pmdepend_t* dep = alpm_splitdep(i->data);
- if(dep == NULL) {
- continue;
+ /* either extract or copy the scriptlet */
+ snprintf(scriptfn, PATH_MAX, "%s/.INSTALL", tmpdir);
+ if(!strcmp(script, "pre_upgrade") || !strcmp(script, "pre_install")) {
+ if(_alpm_unpack(installfn, tmpdir, ".INSTALL")) {
+ retval = 1;
}
-
- if(trans->packages && trans->type == PM_TRANS_TYPE_REMOVE) {
- if(_alpm_pkg_find(dep->name, handle->trans->packages)) {
- continue;
- }
+ } else {
+ if(_alpm_copyfile(installfn, scriptfn)) {
+ _alpm_log(PM_LOG_ERROR, _("could not copy tempfile to %s (%s)\n"), scriptfn, strerror(errno));
+ retval = 1;
}
+ }
+ if(retval == 1) {
+ goto cleanup;
+ }
- pmpkg_t *deppkg = _alpm_db_get_pkgfromcache(localdb, dep->name);
- if(!deppkg) {
- int found_provides = 0;
- /* look for a provides package */
- alpm_list_t *provides = _alpm_db_whatprovides(localdb, dep->name);
- for(j = provides; j; j = j->next) {
- if(!j->data) {
- continue;
- }
- pmpkg_t *provpkg = j->data;
- deppkg = _alpm_db_get_pkgfromcache(localdb, alpm_pkg_get_name(provpkg));
+ /* mark the scriptlet as executable */
+ chmod(scriptfn, 0755);
- if(!deppkg) {
- continue;
- }
+ /* chop off the root so we can find the tmpdir in the chroot */
+ scriptpath = scriptfn + strlen(root) - 1;
- found_provides = 1;
-
- /* this is cheating... we call this function to populate the package */
- alpm_list_t *rqdby = alpm_pkg_get_requiredby(deppkg);
-
- _alpm_log(PM_LOG_DEBUG, _("updating 'requiredby' field for package '%s'"),
- alpm_pkg_get_name(deppkg));
- if(trans->type == PM_TRANS_TYPE_REMOVE) {
- void *data = NULL;
- rqdby = alpm_list_remove(rqdby, pkgname, _alpm_str_cmp, &data);
- FREE(data);
- deppkg->requiredby = rqdby;
- } else {
- if(!alpm_list_find_str(rqdby, pkgname)) {
- rqdby = alpm_list_add(rqdby, strdup(pkgname));
- deppkg->requiredby = rqdby;
- }
- }
+ if(!grep(scriptfn, script)) {
+ /* script not found in scriptlet file */
+ goto cleanup;
+ }
- if(_alpm_db_write(localdb, deppkg, INFRQ_DEPENDS)) {
- _alpm_log(PM_LOG_ERROR, _("could not update 'requiredby' database entry %s-%s"),
- alpm_pkg_get_name(deppkg), alpm_pkg_get_version(deppkg));
- }
- }
- FREELISTPTR(provides);
+ /* save the cwd so we can restore it later */
+ if(getcwd(cwd, PATH_MAX) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not get current working directory\n"));
+ } else {
+ restore_cwd = 1;
+ }
- if(!found_provides) {
- _alpm_log(PM_LOG_DEBUG, _("could not find dependency '%s'"), dep->name);
- continue;
- }
- }
+ /* just in case our cwd was removed in the upgrade operation */
+ if(chdir(root) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("could not change directory to %s (%s)\n"), root, strerror(errno));
+ goto cleanup;
+ }
- /* this is cheating... we call this function to populate the package */
- alpm_list_t *rqdby = alpm_pkg_get_requiredby(deppkg);
+ _alpm_log(PM_LOG_DEBUG, "executing %s script...\n", script);
- _alpm_log(PM_LOG_DEBUG, _("updating 'requiredby' field for package '%s'"),
- alpm_pkg_get_name(deppkg));
- if(trans->type == PM_TRANS_TYPE_REMOVE) {
- void *data = NULL;
- rqdby = alpm_list_remove(rqdby, pkgname, _alpm_str_cmp, &data);
- FREE(data);
- deppkg->requiredby = rqdby;
+ if(oldver) {
+ snprintf(cmdline, PATH_MAX, "%s %s %s %s",
+ scriptpath, script, ver, oldver);
+ } else {
+ snprintf(cmdline, PATH_MAX, "%s %s %s",
+ scriptpath, script, ver);
+ }
+ _alpm_log(PM_LOG_DEBUG, "%s\n", cmdline);
+
+ /* fork- parent and child each have seperate code blocks below */
+ pid = fork();
+ if(pid == -1) {
+ _alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)\n"), strerror(errno));
+ retval = 1;
+ goto cleanup;
+ }
+
+ if(pid == 0) {
+ FILE *pipe;
+ /* this code runs for the child only (the actual chroot/exec) */
+ _alpm_log(PM_LOG_DEBUG, "chrooting in %s\n", root);
+ if(chroot(root) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)\n"),
+ strerror(errno));
+ exit(1);
+ }
+ if(chdir("/") != 0) {
+ _alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)\n"),
+ strerror(errno));
+ exit(1);
+ }
+ umask(0022);
+ _alpm_log(PM_LOG_DEBUG, "executing \"%s\"\n", cmdline);
+ /* execl("/bin/sh", "sh", "-c", cmdline, (char *)NULL); */
+ pipe = popen(cmdline, "r");
+ if(!pipe) {
+ _alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"),
+ strerror(errno));
+ retval = 1;
+ goto cleanup;
+ }
+ while(!feof(pipe)) {
+ char line[PATH_MAX];
+ if(fgets(line, PATH_MAX, pipe) == NULL)
+ break;
+ alpm_logaction("%s", line);
+ EVENT(trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
+ }
+ exit(0);
+ } else {
+ /* this code runs for the parent only (wait on the child) */
+ pid_t retpid;
+ int status;
+ retpid = waitpid(pid, &status, 0);
+ if(retpid == -1) {
+ _alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)\n"),
+ strerror(errno));
+ retval = 1;
+ goto cleanup;
} else {
- if(!alpm_list_find_str(rqdby, pkgname)) {
- rqdby = alpm_list_add(rqdby, strdup(pkgname));
- deppkg->requiredby = rqdby;
+ /* check the return status, make sure it is 0 (success) */
+ if(WIFEXITED(status)) {
+ _alpm_log(PM_LOG_DEBUG, "call to waitpid succeeded\n");
+ if(WEXITSTATUS(status) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("scriptlet failed to execute correctly\n"));
+ retval = 1;
+ }
}
}
+ }
- if(_alpm_db_write(localdb, deppkg, INFRQ_DEPENDS)) {
- _alpm_log(PM_LOG_ERROR, _("could not update 'requiredby' database entry %s-%s"),
- alpm_pkg_get_name(deppkg), alpm_pkg_get_version(deppkg));
- }
- free(dep);
+cleanup:
+ if(clean_tmpdir && _alpm_rmrf(tmpdir)) {
+ _alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s\n"), tmpdir);
+ }
+ if(restore_cwd) {
+ chdir(cwd);
}
- return(0);
-}
+ return(retval);
+}
-pmtranstype_t alpm_trans_get_type()
+pmtranstype_t SYMEXPORT alpm_trans_get_type()
{
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
@@ -380,7 +639,7 @@ unsigned int SYMEXPORT alpm_trans_get_flags()
return handle->trans->flags;
}
-alpm_list_t * alpm_trans_get_targets()
+alpm_list_t SYMEXPORT * alpm_trans_get_targets()
{
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-07-04 19:07:38 +0200