| index : pacman | |
| Archlinux32 fork of pacman | gitolite user |
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| -rw-r--r-- | lib/libalpm/alpm.c | 577 |
diff --git a/lib/libalpm/alpm.c b/lib/libalpm/alpm.c new file mode 100644 index 00000000..23528ae4 --- /dev/null +++ b/lib/libalpm/alpm.c @@ -0,0 +1,577 @@ +/* + * alpm.c + * + * Copyright (c) 2002 by Judd Vinet <jvinet@zeroflux.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 + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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, + * USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <time.h> +#include <syslog.h> +#include <limits.h> /* PATH_MAX */ +#include <stdarg.h> +/* pacman */ +#include "log.h" +#include "error.h" +#include "rpmvercmp.h" +#include "md5.h" +#include "list.h" +#include "package.h" +#include "group.h" +#include "util.h" +#include "db.h" +#include "cache.h" +#include "deps.h" +#include "backup.h" +#include "add.h" +#include "remove.h" +#include "sync.h" +#include "handle.h" +#include "alpm.h" + +pmhandle_t *handle = NULL; + +enum __pmerrno_t pm_errno; + +/* + * Library + */ + +int alpm_initialize(char *root) +{ + char str[PATH_MAX]; + + ASSERT(handle == NULL, PM_RET_ERR(PM_ERR_HANDLE_NOT_NULL, -1)); + + handle = handle_new(); + + /* lock db */ + if(handle->access == PM_ACCESS_RW) { + if(_alpm_lckmk(PACLOCK) == -1) { + FREE(handle); + PM_RET_ERR(PM_ERR_HANDLE_LOCK, -1); + } + } + + strncpy(str, (root) ? root : PACROOT, PATH_MAX); + /* add a trailing '/' if there isn't one */ + if(str[strlen(str)-1] != '/') { + strcat(str, "/"); + } + handle->root = strdup(str); + + return(0); +} + +int alpm_release() +{ + PMList *i; + + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + /* unlock db */ + if(handle->access == PM_ACCESS_RW) { + if(_alpm_lckrm(PACLOCK)) { + _alpm_log(PM_LOG_WARNING, "could not remove lock file %s", PACLOCK); + alpm_logaction("warning: could not remove lock file %s", PACLOCK); + } + } + + /* close local database */ + if(handle->db_local) { + db_close(handle->db_local); + handle->db_local = NULL; + } + /* and also sync ones */ + for(i = handle->dbs_sync; i; i = i->next) { + if(i->data) { + db_close(i->data); + i->data = NULL; + } + } + + FREEHANDLE(handle); + + return(0); +} + +/* + * Options + */ + +int alpm_set_option(unsigned char parm, unsigned long data) +{ + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + return(handle_set_option(handle, parm, data)); +} + +int alpm_get_option(unsigned char parm, long *data) +{ + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + return(handle_get_option(handle, parm, data)); +} + +/* + * Databases + */ + +int alpm_db_register(char *treename, PM_DB **db) +{ + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + ASSERT(treename != NULL && strlen(treename) != 0, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + ASSERT(db != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + /* check if the db if already registered */ + *db = db_open(handle->root, handle->dbpath, treename); + if(*db == NULL) { + /* couldn't open the db directory - try creating it */ + if(db_create(handle->root, handle->dbpath, treename) == -1) { + PM_RET_ERR(PM_ERR_DB_CREATE, -1); + } + *db = db_open(handle->root, handle->dbpath, treename); + if(*db == NULL) { + /* couldn't open the db directory, try creating it */ + PM_RET_ERR(PM_ERR_DB_OPEN, -1); + } + } + + if(strcmp(treename, "local") == 0) { + handle->db_local = *db; + } else { + handle->dbs_sync = pm_list_add(handle->dbs_sync, *db); + } + + return(0); +} + +int alpm_db_unregister(PM_DB *db) +{ + PMList *i; + int found = 0; + + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + ASSERT(db != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + if(db == handle->db_local) { + db_close(handle->db_local); + handle->db_local = NULL; + found = 1; + } else { + for(i = handle->dbs_sync; i && !found; i = i->next) { + if(db == i->data) { + db_close(i->data); + i->data = NULL; + /* ORE + it should be _alpm_list_removed instead */ + found = 1; + } + } + } + + if(!found) { + PM_RET_ERR(PM_ERR_DB_NOT_FOUND, -1); + } + + return(0); +} + +PM_PKG *alpm_db_readpkg(PM_DB *db, char *name) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(db != NULL, return(NULL)); + ASSERT(name != NULL && strlen(name) != 0, return(NULL)); + + return(db_get_pkgfromcache(db, name)); +} + +PM_LIST *alpm_db_getpkgcache(PM_DB *db) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(db != NULL, return(NULL)); + + return(db_get_pkgcache(db)); +} + +PM_GRP *alpm_db_readgrp(PM_DB *db, char *name) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(db != NULL, return(NULL)); + ASSERT(name != NULL && strlen(name) != 0, return(NULL)); + + return(db_get_grpfromcache(db, name)); +} + +PM_LIST *alpm_db_getgrpcache(PM_DB *db) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(db != NULL, return(NULL)); + + return(db_get_grpcache(db)); +} + +PM_LIST *alpm_db_nextgrp(PM_LIST *cache) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(cache != NULL, return(NULL)); + + return(cache->next); +} + +PM_GRP *alpm_db_getgrp(PM_LIST *cache) +{ + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(cache != NULL, return(NULL)); + + return(cache->data); +} + +/* + * Packages + */ + +void *alpm_pkg_getinfo(PM_PKG *pkg, unsigned char parm) +{ + void *data; + + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + ASSERT(pkg != NULL, return(NULL)); + + /* Update the cache package entry if needed */ + if(pkg->origin == PKG_FROM_CACHE && pkg->data == handle->db_local) { + switch(parm) { + case PM_PKG_FILES: + case PM_PKG_BACKUP: + if(!(pkg->infolevel & INFRQ_FILES)) { + char target[321]; /* 256+1+64 */ + + snprintf(target, 321, "%s-%s", pkg->name, pkg->version); + db_read(pkg->data, target, INFRQ_FILES, pkg); + } + break; + + case PM_PKG_SCRIPLET: + if(!(pkg->infolevel & INFRQ_SCRIPLET)) { + char target[321]; + + snprintf(target, 321, "%s-%s", pkg->name, pkg->version); + db_read(pkg->data, target, INFRQ_SCRIPLET, pkg); + } + break; + } + } + + switch(parm) { + case PM_PKG_NAME: data = pkg->name; break; + case PM_PKG_VERSION: data = pkg->version; break; + case PM_PKG_DESC: data = pkg->desc; break; + case PM_PKG_GROUPS: data = pkg->groups; break; + case PM_PKG_URL: data = pkg->url; break; + case PM_PKG_LICENSE: data = pkg->license; break; + case PM_PKG_ARCH: data = pkg->arch; break; + case PM_PKG_BUILDDATE: data = pkg->builddate; break; + case PM_PKG_INSTALLDATE: data = pkg->installdate; break; + case PM_PKG_PACKAGER: data = pkg->packager; break; + case PM_PKG_SIZE: data = (void *)pkg->size; break; + case PM_PKG_REASON: data = (void *)(int)pkg->reason; break; + case PM_PKG_REPLACES: data = pkg->replaces; break; + case PM_PKG_MD5SUM: data = pkg->md5sum; break; + case PM_PKG_DEPENDS: data = pkg->depends; break; + case PM_PKG_REQUIREDBY: data = pkg->requiredby; break; + case PM_PKG_PROVIDES: data = pkg->provides; break; + case PM_PKG_CONFLICTS: data = pkg->conflicts; break; + case PM_PKG_FILES: data = pkg->files; break; + case PM_PKG_BACKUP: data = pkg->backup; break; + case PM_PKG_SCRIPLET: data = (void *)(int)pkg->scriptlet; break; + default: + data = NULL; + break; + } + + return(data); +} + +int alpm_pkg_load(char *filename, PM_PKG **pkg) +{ + /* Sanity checks */ + ASSERT(filename != NULL && strlen(filename) != 0, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + ASSERT(pkg != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + *pkg = pkg_load(filename); + if(*pkg == NULL) { + /* pm_errno is set by pkg_load */ + return(-1); + } + + return(0); +} + +int alpm_pkg_free(PM_PKG *pkg) +{ + /* Sanity checks */ + ASSERT(pkg != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + pkg_free(pkg); + + return(0); +} + +int alpm_pkg_vercmp(const char *ver1, const char *ver2) +{ + return(rpmvercmp(ver1, ver2)); +} + +/* + * Groups + */ + +void *alpm_grp_getinfo(PM_GRP *grp, unsigned char parm) +{ + void *data; + + /* Sanity checks */ + ASSERT(grp != NULL, return(NULL)); + + switch(parm) { + case PM_GRP_NAME: data = grp->name; break; + case PM_GRP_PKGNAMES: data = grp->packages; break; + default: + data = NULL; + break; + } + + return(data); +} + +/* + * Sync operations + */ + +void *alpm_sync_getinfo(PM_SYNC *sync, unsigned char parm) +{ + void *data; + + /* Sanity checks */ + ASSERT(sync != NULL, return(NULL)); + + switch(parm) { + case PM_SYNC_TYPE: data = (void *)(int)sync->type; break; + case PM_SYNC_LOCALPKG: data = sync->lpkg; break; + case PM_SYNC_SYNCPKG: data = sync->spkg; break; + default: + data = NULL; + break; + } + + return(data); +} + +int alpm_sync_sysupgrade(PM_LIST **data) +{ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + ASSERT(data != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + return(sync_sysupgrade(data)); +} + +/* + * Transactions + */ + +void *alpm_trans_getinfo(unsigned char parm) +{ + pmtrans_t *trans; + void *data; + + /* Sanity checks */ + ASSERT(handle != NULL, return(NULL)); + + trans = handle->trans; + + switch(parm) { + case PM_TRANS_TYPE: data = (void *)(int)trans->type; break; + case PM_TRANS_FLAGS: data = (void *)(int)trans->flags; break; + case PM_TRANS_TARGETS: data = trans->targets; break; + default: + data = NULL; + break; + } + + return(data); +} + +int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb cb) +{ + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + ASSERT(handle->trans == NULL, PM_RET_ERR(PM_ERR_TRANS_NOT_NULL, -1)); + + handle->trans = trans_new(); + if(handle->trans == NULL) { + PM_RET_ERR(PM_ERR_MEMORY, -1); + } + + return(trans_init(handle->trans, type, flags, cb)); +} + +int alpm_trans_addtarget(char *target) +{ + pmtrans_t *trans; + + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + ASSERT(target != NULL && strlen(target) != 0, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + trans = handle->trans; + ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1)); + ASSERT(trans->state == STATE_INITIALIZED, PM_RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1)); + + return(trans_addtarget(trans, target)); +} + +int alpm_trans_prepare(PMList **data) +{ + pmtrans_t *trans; + + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + ASSERT(data != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1)); + + trans = handle->trans; + ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1)); + ASSERT(trans->state == STATE_INITIALIZED, PM_RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1)); + + return(trans_prepare(handle->trans, data)); +} + +int alpm_trans_commit() +{ + pmtrans_t *trans; + + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + trans = handle->trans; + ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1)); + ASSERT(trans->state == STATE_PREPARED, PM_RET_ERR(PM_ERR_TRANS_NOT_PREPARED, -1)); + + /* ORE + ASSERT(handle->access != PM_ACCESS_RW, PM_RET_ERR(PM_ERR_BAD_PERMS, -1));*/ + + return(trans_commit(handle->trans)); +} + +int alpm_trans_release() +{ + pmtrans_t *trans; + + /* Sanity checks */ + ASSERT(handle != NULL, PM_RET_ERR(PM_ERR_HANDLE_NULL, -1)); + + trans = handle->trans; + ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_TRANS_NULL, -1)); + ASSERT(trans->state != STATE_IDLE, PM_RET_ERR(PM_ERR_TRANS_NULL, -1)); + + FREETRANS(handle->trans); + + return(0); +} + +/* + * Log facilities + */ + +int alpm_logaction(char *fmt, ...) +{ + char str[256]; + va_list args; + + va_start(args, fmt); + vsnprintf(str, 256, fmt, args); + va_end(args); + + return(_alpm_log_action(handle->usesyslog, handle->logfd, str)); +} + +/* + * Lists wrappers + */ + +PM_LIST *alpm_list_first(PM_LIST *list) +{ + ASSERT(list != NULL, return(NULL)); + + return(list); +} + +PM_LIST *alpm_list_next(PM_LIST *entry) +{ + ASSERT(entry != NULL, return(NULL)); + + return(entry->next); +} + +void *alpm_list_getdata(PM_LIST *entry) +{ + ASSERT(entry != NULL, return(NULL)); + + return(entry->data); +} + +int alpm_list_free(PM_LIST *entry) +{ + if(entry) { + /* ORE + does not free all memory for packages... */ + pm_list_free(entry); + } + + return(0); +} + +/* + * Misc wrappers + */ + +char *alpm_get_md5sum(char *name) +{ + ASSERT(name != NULL, return(NULL)); + + return(MDFile(name)); +} + +/* vim: set ts=2 sw=2 noet: */ |