d79d4a7ced
- Get all functions prototyped or at least defined before use.
- Make code compile (Mostly) clean with -Wall set
- Start to reduce the degree to which DES aka libdes is built in.
- get all functions to the same uniform standard of definition:
int
foo(a, b)
int a;
int *b;
{
:
}
- fix numerous bugs exposed by above processes.
Note - this replaces the previous work which used an unpopular function
definition style.
505 lines
18 KiB
C
505 lines
18 KiB
C
/*
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* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
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* For copying and distribution information, please see the file
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* <Copyright.MIT>.
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*
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* Include file for the Kerberos library.
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*
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* from: krb.h,v 4.26 89/08/08 17:55:25 jtkohl Exp $
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* $Id: krb.h,v 1.6 1995/08/25 21:25:10 mark Exp $
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*/
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/* Only one time, please */
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#ifndef KRB_DEFS
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#define KRB_DEFS
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/* Need some defs from des.h */
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#include <stdio.h>
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#include <kerberosIV/des.h>
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#include <netinet/in.h>
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/* Text describing error codes */
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#define MAX_KRB_ERRORS 256
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extern char *krb_err_txt[MAX_KRB_ERRORS];
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/* These are not defined for at least SunOS 3.3 and Ultrix 2.2 */
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#if defined(ULTRIX022) || (defined(SunOS) && SunOS < 40)
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#define FD_ZERO(p) ((p)->fds_bits[0] = 0)
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#define FD_SET(n, p) ((p)->fds_bits[0] |= (1 << (n)))
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#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1 << (n)))
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#endif /* ULTRIX022 || SunOS */
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/* General definitions */
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#define KSUCCESS 0
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#define KFAILURE 255
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#ifdef NO_UIDGID_T
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typedef unsigned short uid_t;
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typedef unsigned short gid_t;
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#endif /* NO_UIDGID_T */
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/*
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* Kerberos specific definitions
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*
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* KRBLOG is the log file for the kerberos master server. KRB_CONF is
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* the configuration file where different host machines running master
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* and slave servers can be found. KRB_MASTER is the name of the
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* machine with the master database. The admin_server runs on this
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* machine, and all changes to the db (as opposed to read-only
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* requests, which can go to slaves) must go to it. KRB_HOST is the
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* default machine * when looking for a kerberos slave server. Other
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* possibilities are * in the KRB_CONF file. KRB_REALM is the name of
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* the realm.
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*/
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#ifdef notdef
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this is server - only, does not belong here;
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#define KRBLOG "/etc/kerberosIV/kerberos.log"
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are these used anyplace '?';
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#define VX_KRB_HSTFILE "/etc/krbhst"
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#define PC_KRB_HSTFILE "\\kerberos\\krbhst"
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#endif
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#define KRB_CONF "/etc/kerberosIV/krb.conf"
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#define KRB_RLM_TRANS "/etc/kerberosIV/krb.realms"
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#define KRB_MASTER "kerberos"
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#define KRB_HOST KRB_MASTER
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#define KRB_REALM "ATHENA.MIT.EDU"
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/* The maximum sizes for aname, realm, sname, and instance +1 */
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#define ANAME_SZ 40
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#define REALM_SZ 40
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#define SNAME_SZ 40
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#define INST_SZ 40
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/* include space for '.' and '@' */
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#define MAX_K_NAME_SZ (ANAME_SZ + INST_SZ + REALM_SZ + 2)
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#define KKEY_SZ 100
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#define VERSION_SZ 1
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#define MSG_TYPE_SZ 1
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#define DATE_SZ 26 /* RTI date output */
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#define MAX_HSTNM 100
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#ifndef DEFAULT_TKT_LIFE /* allow compile-time override */
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#define DEFAULT_TKT_LIFE 96 /* default lifetime for krb_mk_req
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& co., 8 hrs */
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#endif
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/* Definition of text structure used to pass text around */
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#define MAX_KTXT_LEN 1250
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struct ktext {
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int length; /* Length of the text */
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unsigned char dat[MAX_KTXT_LEN]; /* The data itself */
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unsigned long mbz; /* zero to catch runaway strings */
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};
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typedef struct ktext *KTEXT;
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typedef struct ktext KTEXT_ST;
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/* Definitions for send_to_kdc */
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#define CLIENT_KRB_TIMEOUT 4 /* time between retries */
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#define CLIENT_KRB_RETRY 5 /* retry this many times */
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#define CLIENT_KRB_BUFLEN 512 /* max unfragmented packet */
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/* Definitions for ticket file utilities */
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#define R_TKT_FIL 0
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#define W_TKT_FIL 1
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/* Definitions for cl_get_tgt */
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#ifdef PC
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#define CL_GTGT_INIT_FILE "\\kerberos\\k_in_tkts"
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#else
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#define CL_GTGT_INIT_FILE "/etc/k_in_tkts"
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#endif PC
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/* Parameters for rd_ap_req */
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/* Maximum alloable clock skew in seconds */
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#define CLOCK_SKEW 5*60
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/* Filename for readservkey */
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#define KEYFILE "/etc/kerberosIV/srvtab"
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/* Structure definition for rd_ap_req */
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struct auth_dat {
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unsigned char k_flags; /* Flags from ticket */
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char pname[ANAME_SZ]; /* Principal's name */
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char pinst[INST_SZ]; /* His Instance */
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char prealm[REALM_SZ]; /* His Realm */
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unsigned long checksum; /* Data checksum (opt) */
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C_Block session; /* Session Key */
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int life; /* Life of ticket */
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unsigned long time_sec; /* Time ticket issued */
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unsigned long address; /* Address in ticket */
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KTEXT_ST reply; /* Auth reply (opt) */
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};
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typedef struct auth_dat AUTH_DAT;
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/* Structure definition for credentials returned by get_cred */
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struct credentials {
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char service[ANAME_SZ]; /* Service name */
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char instance[INST_SZ]; /* Instance */
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char realm[REALM_SZ]; /* Auth domain */
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C_Block session; /* Session key */
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int lifetime; /* Lifetime */
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int kvno; /* Key version number */
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KTEXT_ST ticket_st; /* The ticket itself */
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long issue_date; /* The issue time */
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char pname[ANAME_SZ]; /* Principal's name */
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char pinst[INST_SZ]; /* Principal's instance */
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};
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typedef struct credentials CREDENTIALS;
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/* Structure definition for rd_private_msg and rd_safe_msg */
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struct msg_dat {
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unsigned char *app_data; /* pointer to appl data */
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unsigned long app_length; /* length of appl data */
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unsigned long hash; /* hash to lookup replay */
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int swap; /* swap bytes? */
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long time_sec; /* msg timestamp seconds */
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unsigned char time_5ms; /* msg timestamp 5ms units */
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};
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typedef struct msg_dat MSG_DAT;
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/* Location of ticket file for save_cred and get_cred */
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#ifdef PC
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#define TKT_FILE "\\kerberos\\ticket.ses"
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#else
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#define TKT_FILE tkt_string()
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#define TKT_ROOT "/tmp/tkt"
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#endif PC
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/* Error codes returned from the KDC */
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#define KDC_OK 0 /* Request OK */
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#define KDC_NAME_EXP 1 /* Principal expired */
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#define KDC_SERVICE_EXP 2 /* Service expired */
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#define KDC_AUTH_EXP 3 /* Auth expired */
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#define KDC_PKT_VER 4 /* Protocol version unknown */
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#define KDC_P_MKEY_VER 5 /* Wrong master key version */
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#define KDC_S_MKEY_VER 6 /* Wrong master key version */
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#define KDC_BYTE_ORDER 7 /* Byte order unknown */
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#define KDC_PR_UNKNOWN 8 /* Principal unknown */
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#define KDC_PR_N_UNIQUE 9 /* Principal not unique */
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#define KDC_NULL_KEY 10 /* Principal has null key */
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#define KDC_GEN_ERR 20 /* Generic error from KDC */
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/* Values returned by get_credentials */
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#define GC_OK 0 /* Retrieve OK */
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#define RET_OK 0 /* Retrieve OK */
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#define GC_TKFIL 21 /* Can't read ticket file */
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#define RET_TKFIL 21 /* Can't read ticket file */
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#define GC_NOTKT 22 /* Can't find ticket or TGT */
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#define RET_NOTKT 22 /* Can't find ticket or TGT */
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/* Values returned by mk_ap_req */
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#define MK_AP_OK 0 /* Success */
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#define MK_AP_TGTEXP 26 /* TGT Expired */
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/* Values returned by rd_ap_req */
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#define RD_AP_OK 0 /* Request authentic */
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#define RD_AP_UNDEC 31 /* Can't decode authenticator */
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#define RD_AP_EXP 32 /* Ticket expired */
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#define RD_AP_NYV 33 /* Ticket not yet valid */
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#define RD_AP_REPEAT 34 /* Repeated request */
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#define RD_AP_NOT_US 35 /* The ticket isn't for us */
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#define RD_AP_INCON 36 /* Request is inconsistent */
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#define RD_AP_TIME 37 /* delta_t too big */
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#define RD_AP_BADD 38 /* Incorrect net address */
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#define RD_AP_VERSION 39 /* protocol version mismatch */
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#define RD_AP_MSG_TYPE 40 /* invalid msg type */
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#define RD_AP_MODIFIED 41 /* message stream modified */
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#define RD_AP_ORDER 42 /* message out of order */
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#define RD_AP_UNAUTHOR 43 /* unauthorized request */
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/* Values returned by get_pw_tkt */
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#define GT_PW_OK 0 /* Got password changing tkt */
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#define GT_PW_NULL 51 /* Current PW is null */
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#define GT_PW_BADPW 52 /* Incorrect current password */
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#define GT_PW_PROT 53 /* Protocol Error */
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#define GT_PW_KDCERR 54 /* Error returned by KDC */
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#define GT_PW_NULLTKT 55 /* Null tkt returned by KDC */
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/* Values returned by send_to_kdc */
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#define SKDC_OK 0 /* Response received */
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#define SKDC_RETRY 56 /* Retry count exceeded */
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#define SKDC_CANT 57 /* Can't send request */
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/*
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* Values returned by get_intkt
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* (can also return SKDC_* and KDC errors)
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*/
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#define INTK_OK 0 /* Ticket obtained */
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#define INTK_W_NOTALL 61 /* Not ALL tickets returned */
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#define INTK_BADPW 62 /* Incorrect password */
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#define INTK_PROT 63 /* Protocol Error */
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#define INTK_ERR 70 /* Other error */
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/* Values returned by get_adtkt */
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#define AD_OK 0 /* Ticket Obtained */
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#define AD_NOTGT 71 /* Don't have tgt */
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/* Error codes returned by ticket file utilities */
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#define NO_TKT_FIL 76 /* No ticket file found */
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#define TKT_FIL_ACC 77 /* Couldn't access tkt file */
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#define TKT_FIL_LCK 78 /* Couldn't lock ticket file */
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#define TKT_FIL_FMT 79 /* Bad ticket file format */
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#define TKT_FIL_INI 80 /* tf_init not called first */
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/* Error code returned by kparse_name */
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#define KNAME_FMT 81 /* Bad Kerberos name format */
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/* Error code returned by krb_mk_safe */
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#define SAFE_PRIV_ERROR -1 /* syscall error */
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/*
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* macros for byte swapping; also scratch space
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* u_quad 0-->7, 1-->6, 2-->5, 3-->4, 4-->3, 5-->2, 6-->1, 7-->0
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* u_long 0-->3, 1-->2, 2-->1, 3-->0
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* u_short 0-->1, 1-->0
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*/
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#define swap_u_16(x) {\
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unsigned long _krb_swap_tmp[4];\
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swab(((char *) x) +0, ((char *) _krb_swap_tmp) +14 ,2); \
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swab(((char *) x) +2, ((char *) _krb_swap_tmp) +12 ,2); \
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swab(((char *) x) +4, ((char *) _krb_swap_tmp) +10 ,2); \
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swab(((char *) x) +6, ((char *) _krb_swap_tmp) +8 ,2); \
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swab(((char *) x) +8, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +10,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +12,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +14,((char *) _krb_swap_tmp) +0 ,2); \
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bcopy((char *)_krb_swap_tmp,(char *)x,16);\
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}
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#define swap_u_12(x) {\
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unsigned long _krb_swap_tmp[4];\
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swab(( char *) x, ((char *) _krb_swap_tmp) +10 ,2); \
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swab(((char *) x) +2, ((char *) _krb_swap_tmp) +8 ,2); \
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swab(((char *) x) +4, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +6, ((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +8, ((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +10,((char *) _krb_swap_tmp) +0 ,2); \
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bcopy((char *)_krb_swap_tmp,(char *)x,12);\
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}
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#define swap_C_Block(x) {\
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unsigned long _krb_swap_tmp[4];\
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swab(( char *) x, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) x) +2,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) x) +4,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) x) +6,((char *) _krb_swap_tmp) ,2); \
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bcopy((char *)_krb_swap_tmp,(char *)x,8);\
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}
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#define swap_u_quad(x) {\
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unsigned long _krb_swap_tmp[4];\
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swab(( char *) &x, ((char *) _krb_swap_tmp) +6 ,2); \
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swab(((char *) &x) +2,((char *) _krb_swap_tmp) +4 ,2); \
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swab(((char *) &x) +4,((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) &x) +6,((char *) _krb_swap_tmp) ,2); \
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bcopy((char *)_krb_swap_tmp,(char *)&x,8);\
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}
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#define swap_u_long(x) {\
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unsigned long _krb_swap_tmp[4];\
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swab((char *) &x, ((char *) _krb_swap_tmp) +2 ,2); \
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swab(((char *) &x) +2,((char *) _krb_swap_tmp),2); \
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x = _krb_swap_tmp[0]; \
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}
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#define swap_u_short(x) {\
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unsigned short _krb_swap_sh_tmp; \
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swab((char *) &x, ( &_krb_swap_sh_tmp) ,2); \
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x = (unsigned short) _krb_swap_sh_tmp; \
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}
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/* Kerberos ticket flag field bit definitions */
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#define K_FLAG_ORDER 0 /* bit 0 --> lsb */
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#define K_FLAG_1 /* reserved */
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#define K_FLAG_2 /* reserved */
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#define K_FLAG_3 /* reserved */
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#define K_FLAG_4 /* reserved */
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#define K_FLAG_5 /* reserved */
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#define K_FLAG_6 /* reserved */
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#define K_FLAG_7 /* reserved, bit 7 --> msb */
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#ifndef PC
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char *tkt_string();
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#endif PC
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#ifdef OLDNAMES
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#define krb_mk_req mk_ap_req
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#define krb_rd_req rd_ap_req
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#define krb_kntoln an_to_ln
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#define krb_set_key set_serv_key
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#define krb_get_cred get_credentials
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#define krb_mk_priv mk_private_msg
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#define krb_rd_priv rd_private_msg
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#define krb_mk_safe mk_safe_msg
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#define krb_rd_safe rd_safe_msg
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#define krb_mk_err mk_appl_err_msg
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#define krb_rd_err rd_appl_err_msg
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#define krb_ck_repl check_replay
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#define krb_get_pw_in_tkt get_in_tkt
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#define krb_get_svc_in_tkt get_svc_in_tkt
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#define krb_get_pw_tkt get_pw_tkt
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#define krb_realmofhost krb_getrealm
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#define krb_get_phost get_phost
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#define krb_get_krbhst get_krbhst
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#define krb_get_lrealm get_krbrlm
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#endif OLDNAMES
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/* Defines for krb_sendauth and krb_recvauth */
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#define KOPT_DONT_MK_REQ 0x00000001 /* don't call krb_mk_req */
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#define KOPT_DO_MUTUAL 0x00000002 /* do mutual auth */
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#define KOPT_DONT_CANON 0x00000004 /*
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* don't canonicalize inst as
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* a hostname
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*/
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#define KRB_SENDAUTH_VLEN 8 /* length for version strings */
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#ifdef ATHENA_COMPAT
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#define KOPT_DO_OLDSTYLE 0x00000008 /* use the old-style protocol */
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#endif ATHENA_COMPAT
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/* libacl */
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void acl_canonicalize_principal __P((char *principal, char *buf));
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int acl_check __P((char *acl, char *principal));
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int acl_exact_match __P((char *acl, char *principal));
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int acl_add __P((char *acl, char *principal));
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int acl_delete __P((char *acl, char *principal));
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int acl_initialize __P((char *acl_file, int mode));
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/* libkrb - krb.3 */
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int krb_mk_req __P((KTEXT authent, char *service, char *instance, char *realm,
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long checksum);
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int krb_rd_req __P((KTEXT authent, char *service, char *instance,
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long from_addr, AUTH_DAT *ad, char *fn));
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int krb_kntoln __P((AUTH_DAT *ad, char *lname));
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int krb_set_key __P((char *key, int cvt));
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int krb_get_cred __P((char *service, char *instance, char *realm,
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CREDENTIALS *c));
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long krb_mk_priv __P((u_char *in, u_char *out, u_long in_length,
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des_key_schedule schedule, des_cblock key, struct sockaddr_in *sender,
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struct sockaddr_in *receiver));
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long krb_rd_priv __P((u_char *in, u_long in_length, Key_schedule schedule,
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des_cblock key, struct sockaddr_in *sender, struct sockaddr_in *receiver,
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MSG_DAT *msg_data));
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long krb_mk_safe __P((u_char *in, u_char *out, u_long in_length,
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des_cblock *key, struct sockaddr_in *sender, struct sockaddr_in *receiver));
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long krb_rd_safe __P((u_char *in, u_long length, des_cblock *key,
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struct sockaddr_in *sender, struct sockaddr_in *receiver,
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MSG_DAT *msg_data));
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long krb_mk_err __P((u_char *out, long code, char *string));
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int krb_rd_err __P((u_char *in, u_long in_length, long *code, MSG_DAT *m_data));
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/* libkrb - krb_sendauth.3 */
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int krb_sendauth __P((long options, int fd, KTEXT ticket, char *service,
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char *inst, char *realm, u_long checksum, MSG_DAT *msg_data,
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CREDENTIALS *cred, Key_schedule schedule, struct sockaddr_in *laddr,
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struct sockaddr_in *faddr, char *version));
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int krb_recvauth __P((long options, int fd, KTEXT ticket, char *service,
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char *instance, struct sockaddr_in *faddr, struct sockaddr_in *laddr,
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AUTH_DAT *kdata, char *filename, Key_schedule schedule, char *version));
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int krb_net_write __P((int fd, char *buf, int len));
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int krb_net_read __P((int fd, char *buf, int len));
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/* libkrb - krb_realmofhost.3 */
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char *krb_realmofhost __P((char *host));
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char *krb_get_phost __P((char *alias));
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int krb_get_krbhst __P((char *h, char *r, int n));
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int krb_get_admhst __P((char *h, char *r, int n));
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int krb_get_lrealm __P((char *r, int n));
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/* libkrb - krb_set_tkt_string.3 */
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void krb_set_tkt_string(char *val);
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/* libkrb - kuserok.3 */
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int kuserok __P((AUTH_DAT *authdata, char *localuser));
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/* libkrb - tf_util.3 */
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int tf_init __P((char *tf_name, int rw));
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int tf_get_pname __P((char *p));
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int tf_get_pinst __P((char *inst));
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int tf_get_cred __P((CREDENTIALS *c));
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void tf_close __P((void));
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/* Internal routines */
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int des_read __P((int fd, char *buf, int len));
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int des_write __P((int fd, char *buf, int len));
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int krb_get_tf_realm __P((char *ticket_file, char *realm));
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int krb_get_in_tkt __P((char *user, char *instance, char *realm, char *service,
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char *sinstance, int life, int (*key_proc)(), int (*decrypt_proc)(),
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char *arg));
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int krb_get_pw_in_tkt __P((char *user, char *instance, char *realm,
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char *service, char *sinstance, int life, char *password));
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int krb_get_svc_in_tkt __P((char *user, char *instance, char *realm,
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char *service, char *sinstance, int life, char *srvtab));
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int krb_get_tf_fullname __P((char *ticket_file, char *name, char *instance,
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char *realm));
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int save_credentials __P((char *service, char *instance, char *realm,
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des_cblock session, int lifetime, int kvno, KTEXT ticket, long issue_date));
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int read_service_key __P((char *service, char *instance, char *realm, int kvno,
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char *file, char *key));
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int get_ad_tkt __P((char *service, char *sinstance, char *realm, int lifetime));
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int send_to_kdc __P((KTEXT pkt, KTEXT rpkt, char *realm));
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int krb_create_ticket __P((KTEXT tkt, unsigned char flags, char *pname,
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char *pinstance, char *prealm, long paddress, char *session, short life,
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long time_sec, char *sname, char *sinstance, C_Block key));
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int decomp_ticket __P((KTEXT tkt, unsigned char *flags, char *pname,
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char *pinstance, char *prealm, unsigned long *paddress, des_cblock session,
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int *life, unsigned long *time_sec, char *sname, char *sinstance,
|
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des_cblock key, des_key_schedule key_s));
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int create_ciph __P((KTEXT c, C_Block session, char *service, char *instance,
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char *realm, unsigned long life, int kvno, KTEXT tkt,
|
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unsigned long kdc_time, C_Block key));
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int kname_parse __P((char *np, char *ip, char *rp, char *fullname));
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int tf_save_cred __P((char *service, char *instance, char *realm,
|
|
des_cblock session, int lifetime, int kvno, KTEXT ticket, long issue_date));
|
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int getst(int fd, char *s, int n));
|
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int pkt_clen __P((KTEXT pkt));
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int in_tkt __P((char *pname, char *pinst));
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|
int dest_tkt __P((void));
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char *month_sname __P((int n));
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void log __P(()); /* Actually VARARGS - markm */
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|
void kset_logfile __P((char *filename));
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|
void set_logfile __P((char *filename));
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|
int k_isinst __P((char *s));
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|
int k_isrealm __P((char *s));
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|
int k_isname __P((char *s));
|
|
int k_gethostname __P((char *name, int namelen));
|
|
int kerb_init __P((void));
|
|
void kerb_fini __P((void));
|
|
int kerb_db_set_name __P((char *name));
|
|
int kerb_db_set_lockmode __P((int mode));
|
|
int kerb_db_create __P((char *db_name));
|
|
int kerb_db_iterate __P((int (*func)(), char *arg));
|
|
int kerb_db_rename __P((char *from, char *to));
|
|
long kerb_get_db_age __P((void));
|
|
char * stime __P((long *t));
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|
|
|
long kdb_get_master_key __P((int prompt, C_Block master_key,
|
|
Key_schedule master_key_sched));
|
|
long kdb_verify_master_key __P((C_Block master_key,
|
|
Key_schedule master_key_sched, FILE *out));
|
|
void kdb_encrypt_key __P((C_Block in, C_Block out, C_Block master_key,
|
|
Key_schedule master_key_sched, int e_d_flag));
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|
|
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extern int krb_ap_req_debug;
|
|
extern int krb_debug;
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#endif KRB_DEFS
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