From 5d847fc33b0b87285fecd6bcdb1777da3e045e20 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= Date: Fri, 19 Aug 2005 13:07:03 +0000 Subject: [PATCH] provide interface to find avaible databates git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15937 ec53bebd-3082-4978-b11e-865c3cabbd6b --- lib/hdb/dbinfo.c | 212 ++++++++++++++++++++++++++++++++++++++++++ lib/hdb/test_dbinfo.c | 90 ++++++++++++++++++ 2 files changed, 302 insertions(+) create mode 100644 lib/hdb/dbinfo.c create mode 100644 lib/hdb/test_dbinfo.c diff --git a/lib/hdb/dbinfo.c b/lib/hdb/dbinfo.c new file mode 100644 index 000000000..a5e741751 --- /dev/null +++ b/lib/hdb/dbinfo.c @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "hdb_locl.h" + +RCSID("$Id$"); + +struct hdb_dbinfo { + char *label; + char *realm; + char *dbname; + char *mkey_file; + const krb5_config_binding *binding; + struct hdb_dbinfo *next; +}; + +static int +get_dbinfo(krb5_context context, + const krb5_config_binding *db_binding, + const char *label, + struct hdb_dbinfo **db) +{ + struct hdb_dbinfo *di; + const char *p; + + *db = NULL; + + p = krb5_config_get_string(context, db_binding, "realm", NULL); + if(p == NULL) + return 0; + + di = calloc(1, sizeof(*di)); + if (di == NULL) { + krb5_set_error_string(context, "malloc: out of memory"); + return ENOMEM; + } + di->label = strdup(label); + di->realm = strdup(p); + + p = krb5_config_get_string(context, db_binding, "dbname", NULL); + if(p) + di->dbname = strdup(p); + p = krb5_config_get_string(context, db_binding, "mkey_file", NULL); + if(p) + di->mkey_file = strdup(p); + + di->binding = db_binding; + + *db = di; + return 0; +} + + +int +hdb_get_dbinfo(krb5_context context, struct hdb_dbinfo **dbp) +{ + const krb5_config_binding *db_binding; + struct hdb_dbinfo *di, **dt, *databases; + const char *default_dbname = HDB_DEFAULT_DB; + const char *default_mkey = HDB_DB_DIR "/m-key"; + const char *p; + int ret; + + *dbp = NULL; + dt = NULL; + databases = NULL; + + db_binding = krb5_config_get(context, NULL, krb5_config_list, + "kdc", + "database", + NULL); + if (db_binding) { + + ret = get_dbinfo(context, db_binding, "default", &di); + if (ret == 0 && di) { + databases = di; + dt = &di->next; + } + + for ( ; db_binding != NULL; db_binding = db_binding->next) { + + if (db_binding->type != krb5_config_list) + continue; + + ret = get_dbinfo(context, db_binding->u.list, + db_binding->name, &di); + if (ret) + krb5_err(context, 1, ret, "failed getting realm"); + + if (di == NULL) + continue; + + if (dt) + *dt = di; + else + databases = di; + dt = &di->next; + + } + } + + if(databases == NULL) { + /* if there are none specified, use some default */ + di = calloc(1, sizeof(*di)); + di->dbname = strdup(default_dbname); + di->mkey_file = strdup(default_mkey); + databases = di; + } + for(di = databases; di; di = di->next) { + if(di->dbname == NULL) + di->dbname = strdup(default_dbname); + if(di->mkey_file == NULL) { + p = strrchr(di->dbname, '.'); + if(p == NULL || strchr(p, '/') != NULL) + /* final pathname component does not contain a . */ + asprintf(&di->mkey_file, "%s.mkey", di->dbname); + else + /* the filename is something.else, replace .else with + .mkey */ + asprintf(&di->mkey_file, "%.*s.mkey", + (int)(p - di->dbname), di->dbname); + } + } + *dbp = databases; + return 0; +} + + +struct hdb_dbinfo * +hdb_dbinfo_get_next(struct hdb_dbinfo *dbp, struct hdb_dbinfo *dbprevp) +{ + if (dbprevp == NULL) + return dbp; + else + return dbprevp->next; +} + +const char * +hdb_dbinfo_get_label(krb5_context context, struct hdb_dbinfo *dbp) +{ + return dbp->label; +} + +const char * +hdb_dbinfo_get_realm(krb5_context context, struct hdb_dbinfo *dbp) +{ + return dbp->realm; +} + +const char * +hdb_dbinfo_get_dbname(krb5_context context, struct hdb_dbinfo *dbp) +{ + return dbp->dbname; +} + +const char * +hdb_dbinfo_get_mkey_file(krb5_context context, struct hdb_dbinfo *dbp) +{ + return dbp->mkey_file; +} + +const krb5_config_binding * +hdb_dbinfo_get_binding(krb5_context context, struct hdb_dbinfo *dbp) +{ + return dbp->binding; +} + +void +hdb_free_dbinfo(krb5_context context, struct hdb_dbinfo **dbp) +{ + struct hdb_dbinfo *di, *ndi; + + for(di = *dbp; di != NULL; di = ndi) { + ndi = di->next; + free (di->realm); + free (di->dbname); + if (di->mkey_file) + free (di->mkey_file); + free(di); + } + *dbp = NULL; +} diff --git a/lib/hdb/test_dbinfo.c b/lib/hdb/test_dbinfo.c new file mode 100644 index 000000000..b47be7025 --- /dev/null +++ b/lib/hdb/test_dbinfo.c @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "hdb_locl.h" +#include + +RCSID("$Id$"); + +static int help_flag; +static int version_flag; + +struct getargs args[] = { + { "help", 'h', arg_flag, &help_flag }, + { "version", 0, arg_flag, &version_flag } +}; + +static int num_args = sizeof(args) / sizeof(args[0]); + +int +main(int argc, char **argv) +{ + struct hdb_dbinfo *info, *d; + krb5_context context; + int ret, o = 0; + + setprogname(argv[0]); + + if(getarg(args, num_args, argc, argv, &o)) + krb5_std_usage(1, args, num_args); + + if(help_flag) + krb5_std_usage(0, args, num_args); + + if(version_flag){ + print_version(NULL); + exit(0); + } + + ret = krb5_init_context(&context); + if (ret) + errx (1, "krb5_init_context failed: %d", ret); + + ret = hdb_get_dbinfo(context, &info); + if (ret) + krb5_err(context, 1, ret, "hdb_get_dbinfo"); + + d = NULL; + while ((d = hdb_dbinfo_get_next(info, d)) != NULL) { + printf("label: %s\n", hdb_dbinfo_get_label(context, d)); + printf("\trealm: %s\n", hdb_dbinfo_get_realm(context, d)); + printf("\tdbname: %s\n", hdb_dbinfo_get_dbname(context, d)); + printf("\tmkey_file: %s\n", hdb_dbinfo_get_mkey_file(context, d)); + } + + hdb_free_dbinfo(context, &info); + + krb5_free_context(context); + + return 0; +}