diff options
Diffstat (limited to 'third_party/heimdal/admin/add.c')
| -rw-r--r-- | third_party/heimdal/admin/add.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/third_party/heimdal/admin/add.c b/third_party/heimdal/admin/add.c new file mode 100644 index 0000000..13580b9 --- /dev/null +++ b/third_party/heimdal/admin/add.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 1997-2005 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 "ktutil_locl.h" + +RCSID("$Id$"); + +static char * +readstring(const char *prompt, char *buf, size_t len) +{ + printf("%s", prompt); + if (fgets(buf, len, stdin) == NULL) + return NULL; + buf[strcspn(buf, "\r\n")] = '\0'; + return buf; +} + +int +kt_add(struct add_options *opt, int argc, char **argv) +{ + krb5_error_code ret; + krb5_keytab keytab; + krb5_keytab_entry entry; + char buf[1024]; + krb5_enctype enctype; + + if((keytab = ktutil_open_keytab()) == NULL) + return 1; + + memset(&entry, 0, sizeof(entry)); + if(opt->principal_string == NULL) { + if(readstring("Principal: ", buf, sizeof(buf)) == NULL) + return 1; + opt->principal_string = buf; + } + ret = krb5_parse_name(context, opt->principal_string, &entry.principal); + if(ret) { + krb5_warn(context, ret, "%s", opt->principal_string); + goto out; + } + if(opt->enctype_string == NULL) { + if(readstring("Encryption type: ", buf, sizeof(buf)) == NULL) { + ret = 1; + goto out; + } + opt->enctype_string = buf; + } + ret = krb5_string_to_enctype(context, opt->enctype_string, &enctype); + if(ret) { + int t; + if(sscanf(opt->enctype_string, "%d", &t) == 1) + enctype = t; + else { + krb5_warn(context, ret, "%s", opt->enctype_string); + goto out; + } + } + if(opt->kvno_integer == -1) { + if(readstring("Key version: ", buf, sizeof(buf)) == NULL) { + ret = 1; + goto out; + } + if(sscanf(buf, "%u", &opt->kvno_integer) != 1) + goto out; + } + if(opt->password_string == NULL && opt->random_flag == 0) { + if(UI_UTIL_read_pw_string(buf, sizeof(buf), "Password: ", + UI_UTIL_FLAG_VERIFY)) { + ret = 1; + goto out; + } + opt->password_string = buf; + } + if(opt->password_string) { + if (opt->hex_flag) { + size_t len; + void *data; + + len = (strlen(opt->password_string) + 1) / 2; + + data = malloc(len); + if (data == NULL) { + krb5_warn(context, ENOMEM, "malloc"); + goto out; + } + + if ((size_t)hex_decode(opt->password_string, data, len) != len) { + free(data); + krb5_warn(context, ENOMEM, "hex decode failed"); + goto out; + } + + ret = krb5_keyblock_init(context, enctype, + data, len, &entry.keyblock); + free(data); + } else if (!opt->salt_flag) { + krb5_salt salt; + krb5_data pw; + + salt.salttype = KRB5_PW_SALT; + salt.saltvalue.data = NULL; + salt.saltvalue.length = 0; + pw.data = (void*)opt->password_string; + pw.length = strlen(opt->password_string); + ret = krb5_string_to_key_data_salt(context, enctype, pw, salt, + &entry.keyblock); + } else { + ret = krb5_string_to_key(context, enctype, opt->password_string, + entry.principal, &entry.keyblock); + } + memset (opt->password_string, 0, strlen(opt->password_string)); + } else { + ret = krb5_generate_random_keyblock(context, enctype, &entry.keyblock); + } + if(ret) { + krb5_warn(context, ret, "add"); + goto out; + } + entry.vno = opt->kvno_integer; + entry.timestamp = time (NULL); + ret = krb5_kt_add_entry(context, keytab, &entry); + if(ret) + krb5_warn(context, ret, "add"); + out: + krb5_kt_free_entry(context, &entry); + krb5_kt_close(context, keytab); + return ret != 0; +} |