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500 lines
18 KiB
C
500 lines
18 KiB
C
/*
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* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
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*
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* For copying and distribution information, please see the file
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* <mit-copyright.h>.
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*
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* Include file for the Kerberos library.
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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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#include <mit_copy.h>
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#include <conf.h>
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/* Need some defs from des.h */
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#include <des.h>
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/* Text describing error codes */
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#define MAX_KRB_ERRORS 256
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#ifndef WINDOWS
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extern char *krb_err_txt[MAX_KRB_ERRORS];
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#else
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extern char FAR *krb_err_txt[MAX_KRB_ERRORS];
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#endif
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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 "/kerberos/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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#ifdef IBMPC
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#define KRB_CONF "%s\\kerb\\krb.con"
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#define KRB_RLM_TRANS "%s\\KERB\\krbrealm.con"
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#else
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#define KRB_CONF "/etc/krb.conf"
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#define KRB_RLM_TRANS "/etc/krb.realms"
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#endif
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#define KRB_MASTER "kerberos.mit.edu"
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#define KRB_REALM "ATHENA.MIT.EDU"
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#define KRB_HOST KRB_MASTER
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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 far *KTEXT;
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typedef struct ktext far *KTEXT_FP;
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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 10 /* time between retries */ /* changed from 4, 8-14-94 pbh */
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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/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 far *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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#define TKT_FILE tkt_string()
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#define TKT_ENV "KERBEROS_TICKETS"
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typedef struct {
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unsigned buf_size;
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unsigned dummy;
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unsigned eof_ptr;
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int sema; /* semaphore 0 - OK, -1 - lock write, +ve lock read */
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} tkt_header;
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tkt_header far *tkt_ptr(void);
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#define KM_TKFILE 0
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#define KM_KRBMEM 1
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#define TKT_ROOT "/tmp/tkt" /* not used in OS/2 anyway */
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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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char *tkt_string();
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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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#ifdef WINDOWS
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#include <lsh_pwd.h>
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int gettimeofday(struct timeval *tv, struct timezone *tz);
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void tkt_free(tkt_header FAR* hdr);
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int krb_get_tf_fullname(char *tf, char *name, char *inst, char *realm);
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/* Windows prototypes */
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int FAR PASCAL krb_sendauth(long,int,KTEXT_FP,LPSTR,LPSTR,LPSTR,unsigned long,
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MSG_DAT FAR *,CREDENTIALS FAR *, Key_schedule FAR *,
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struct sockaddr_in FAR *,struct sockaddr_in FAR *, LPSTR);
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char FAR* FAR* FAR get_krb_err_txt(void);
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/* 2-22-93, pbh */
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int FAR krb_get_tf_realm(char FAR *,char FAR *);
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int FAR tf_init(char FAR*,int);
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int FAR tf_get_pname(char FAR*);
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int FAR tf_get_pinst(char FAR*);
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int FAR tf_get_cred(CREDENTIALS FAR*);
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void FAR tf_close(void);
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int FAR tf_save_cred(char FAR*,char FAR*,char FAR*,C_Block,int,int,KTEXT,long);
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BOOL FAR k_isinst(char FAR *s);
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BOOL FAR k_isrealm(char FAR *s);
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BOOL FAR k_isname(char FAR *s);
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int FAR set_krb_debug( int ); /* Warning, unique to Windows! */
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int FAR set_krb_ap_req_debug( int ); /* Warning, unique to Windows! */
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LPSTR FAR PASCAL get_krb_err_txt_entry( int i); /* Warning, unique to Windows! */
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int FAR PASCAL krb_mk_req(KTEXT,LPSTR,LPSTR,LPSTR,long);
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LPSTR FAR PASCAL krb_getrealm( char FAR *host);
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/* end 2-22-93, pbh */
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#ifdef WINSOCK
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#define bcopy(a,b,c) memcpy( (b), (a), (c) )
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#define bzero(a,b) memset( (a), 0, (b) )
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#endif /* WINSOCK */
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/*
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#ifdef __cplusplus
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int printf(char far*,...);
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#else
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int printf();
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#endif
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*/
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int FAR kname_parse(char FAR*,char FAR*,char FAR*,char FAR*);
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int FAR krb_get_pw_in_tkt(char FAR*,char FAR*,char FAR*,char FAR*,char FAR*,int,char FAR*);
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int FAR dest_tkt(void);
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int FAR krb_get_lrealm(LPSTR ,int);
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int FAR krb_use_kerbmem();
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int FAR krb_check_tgt();
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int FAR krb_check_serv(char *);
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int FAR krb_get_cred(char FAR*,char FAR*,char FAR*,CREDENTIALS FAR*);
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int FAR send_to_kdc(KTEXT,KTEXT,char FAR*);
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#define MIT_PWD_DLL_CLASS "MITPasswordWndDLL"
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#else /* end of WINDOWS start of DOS */
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/* DOS prototypes */
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int krb_get_in_tkt(char *, char *, char *, char *, char *, int, int (*)(), int (*)(), char *);
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long krb_mk_priv( u_char *, u_char *, u_long, Key_schedule, C_Block,
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struct sockaddr_in *, struct sockaddr_in *);
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char* krb_getrealm( char *host);
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char* krb_realmofhost( char *host);
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int krb_get_tf_realm(char*,char*);
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int krb_get_tf_fullname(char*,char*,char*,char*);
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int get_ad_tkt(char*,char*,char*,int);
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int krb_get_cred(char*,char*,char*,CREDENTIALS*);
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int krb_get_krbhst(char*,char*,int);
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int krb_get_lrealm(char*,int);
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char* krb_get_phost(char*);
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int krb_mk_req(KTEXT,char*,char*,char*,long);
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int krb_set_lifetime(int);
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#ifndef WINSOCK
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int krb_net_read(int,char*,int);
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int krb_net_write(int,char*,int);
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#else
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int krb_net_read(SOCKET,char*,int);
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int krb_net_write(SOCKET,char*,int);
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#endif /*winsock*/
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KTEXT pkt_cipher(KTEXT);
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int pkt_clen(KTEXT);
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long krb_rd_priv(unsigned char*,unsigned long,Key_schedule,C_Block,
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struct sockaddr_in*, struct sockaddr_in*,MSG_DAT*);
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int save_credentials(char*,char*,char*,C_Block,int,int,KTEXT,long);
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int send_to_kdc(KTEXT,KTEXT,char*);
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int krb_sendauth(long,int,KTEXT,char*,char*,char*,u_long,
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MSG_DAT*,CREDENTIALS*,Key_schedule,
|
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struct sockaddr_in*,struct sockaddr_in*,char*);
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int tf_init(char*,int);
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int tf_get_pname(char*);
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int tf_get_pinst(char*);
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int tf_get_cred(CREDENTIALS*);
|
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void tf_close(void);
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int tf_save_cred(char*,char*,char*,C_Block,int,int,KTEXT,long);
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int kname_parse(char*,char*,char*,char*);
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int krb_get_pw_in_tkt(char*,char*,char*,char*,char*,int,char*);
|
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int dest_tkt(void);
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int krb_use_kerbmem();
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int krb_check_tgt();
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int krb_check_serv(char *);
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#endif /* WINDOWS */
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|
#endif /* KRB_DEFS */
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