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/*
* Copyright (c) 1994 by the University of Southern California
*
* EXPORT OF THIS SOFTWARE from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to copy, modify, and distribute
* this software and its documentation in source and binary forms is
* hereby granted, provided that any documentation or other materials
* related to such distribution or use acknowledge that the software
* was developed by the University of Southern California.
*
* DISCLAIMER OF WARRANTY. THIS SOFTWARE IS PROVIDED "AS IS". The
* University of Southern California MAKES NO REPRESENTATIONS OR
* WARRANTIES, EXPRESS OR IMPLIED. By way of example, but not
* limitation, the University of Southern California MAKES NO
* REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
* PARTICULAR PURPOSE. The University of Southern
* California shall not be held liable for any liability nor for any
* direct, indirect, or consequential damages with respect to any
* claim by the user or distributor of the ksu software.
*
* KSU was writen by: Ari Medvinsky, ari@isi.edu
*/
#include "k5-int.h"
#include "k5-util.h"
#include <stdio.h>
#include "com_err.h"
#include <sys/types.h>
#include <sys/param.h>
#include <pwd.h>
#include <unistd.h>
#include <string.h>
#include <syslog.h>
/* <stdarg.h> or <varargs.h> is already included by com_err.h. */
#define NO_TARGET_FILE '.'
#define SOURCE_USER_LOGIN "."
#define KRB5_DEFAULT_OPTIONS 0
#define KRB5_DEFAULT_TKT_LIFE 60*60*12 /* 12 hours */
#define KRB5_SECONDARY_CACHE "FILE:/tmp/krb5cc_"
#define KRB5_LOGIN_NAME ".k5login"
#define KRB5_USERS_NAME ".k5users"
#define USE_DEFAULT_REALM_NAME "."
#define PERMIT_ALL_COMMANDS "*"
#define KRB5_SEC_BUFFSIZE 80
#define NOT_AUTHORIZED 1
#define CHUNK 3
#define CACHE_MODE 0600
#define MAX_CMD 2048 /* this is temp, should use realloc instead,
as done in most of the code */
extern int optind;
extern char * optarg;
/* globals */
extern char * prog_name;
extern int auth_debug;
extern int quiet;
extern char k5login_path[MAXPATHLEN];
extern char k5users_path[MAXPATHLEN];
extern char * gb_err;
/***********/
typedef struct opt_info{
int opt;
krb5_deltat lifetime;
krb5_deltat rlife;
int princ;
}opt_info;
/* krb_auth_su.c */
extern krb5_boolean krb5_auth_check
PROTOTYPE((krb5_context, krb5_principal, char *, opt_info *,
char *, krb5_ccache, int *, uid_t));
extern krb5_boolean krb5_fast_auth
PROTOTYPE((krb5_context, krb5_principal, krb5_principal, char *,
krb5_ccache));
extern krb5_boolean krb5_get_tkt_via_passwd
PROTOTYPE((krb5_context, krb5_ccache *, krb5_principal,
krb5_principal, opt_info *, krb5_boolean *));
extern void dump_principal
PROTOTYPE((krb5_context, char *, krb5_principal));
extern void plain_dump_principal
PROTOTYPE((krb5_context, krb5_principal));
extern krb5_error_code krb5_parse_lifetime
PROTOTYPE((char *, long *));
extern krb5_error_code get_best_principal
PROTOTYPE((krb5_context, char **, krb5_principal *));
/* ccache.c */
extern krb5_error_code krb5_ccache_copy
PROTOTYPE((krb5_context, krb5_ccache, char *, krb5_principal,
krb5_ccache *, krb5_boolean *, uid_t));
extern krb5_error_code krb5_store_all_creds
PROTOTYPE((krb5_context, krb5_ccache, krb5_creds **, krb5_creds **));
extern krb5_error_code krb5_store_all_creds
PROTOTYPE((krb5_context, krb5_ccache, krb5_creds **, krb5_creds **));
extern krb5_boolean compare_creds
PROTOTYPE((krb5_context, krb5_creds *, krb5_creds *));
extern krb5_error_code krb5_get_nonexp_tkts
PROTOTYPE((krb5_context, krb5_ccache, krb5_creds ***));
extern krb5_error_code krb5_check_exp
PROTOTYPE((krb5_context, krb5_ticket_times));
extern char *flags_string PROTOTYPE((krb5_creds *));
extern krb5_error_code krb5_get_login_princ
PROTOTYPE((const char *, char ***));
extern void show_credential
PROTOTYPE((krb5_context, krb5_creds *, krb5_ccache));
extern int gen_sym PROTOTYPE((void));
extern krb5_error_code krb5_ccache_overwrite
PROTOTYPE((krb5_context, krb5_ccache, krb5_ccache, krb5_principal));
extern krb5_error_code krb5_store_some_creds
PROTOTYPE((krb5_context, krb5_ccache, krb5_creds **, krb5_creds **,
krb5_principal, krb5_boolean *));
extern krb5_error_code krb5_ccache_copy_restricted
PROTOTYPE((krb5_context, krb5_ccache, char *, krb5_principal,
krb5_ccache *, krb5_boolean *, uid_t));
extern krb5_error_code krb5_ccache_refresh
PROTOTYPE((krb5_context, krb5_ccache));
extern krb5_error_code krb5_ccache_filter
PROTOTYPE((krb5_context, krb5_ccache, krb5_principal));
extern krb5_boolean krb5_find_princ_in_cred_list
PROTOTYPE((krb5_context, krb5_creds **, krb5_principal));
extern krb5_error_code krb5_find_princ_in_cache
PROTOTYPE((krb5_context, krb5_ccache, krb5_principal, krb5_boolean *));
extern void printtime PROTOTYPE((time_t));
/* authorization.c */
extern krb5_boolean fowner PROTOTYPE((FILE *, int));
extern krb5_error_code krb5_authorization
PROTOTYPE((krb5_context, krb5_principal, const char *, char *,
krb5_boolean *, char **));
extern krb5_error_code k5login_lookup PROTOTYPE((FILE *, char *,
krb5_boolean *));
extern krb5_error_code k5users_lookup
PROTOTYPE((FILE *, char *, char *, krb5_boolean *, char **));
extern krb5_boolean fcmd_resolve
PROTOTYPE((char *, char ***, char **));
extern krb5_boolean cmd_single PROTOTYPE((char *));
extern int cmd_arr_cmp_postfix PROTOTYPE((char **, char *));
extern int cmd_arr_cmp PROTOTYPE((char **, char *));
extern krb5_boolean find_first_cmd_that_exists
PROTOTYPE((char **, char **, char **));
extern int match_commands
PROTOTYPE((char *, char *, krb5_boolean *, char **, char **));
extern krb5_error_code get_line PROTOTYPE((FILE *, char **));
extern char * get_first_token PROTOTYPE((char *, char **));
extern char * get_next_token PROTOTYPE((char **));
extern krb5_boolean fowner PROTOTYPE((FILE *, int));
extern void init_auth_names PROTOTYPE((char *));
/* main.c */
extern void usage PROTOTYPE((void));
extern int standard_shell PROTOTYPE((char *));
extern krb5_error_code get_params PROTOTYPE((int *, int, char **, char ***));
extern char *get_dir_of_file PROTOTYPE((const char *));
/* heuristic.c */
extern krb5_error_code get_all_princ_from_file PROTOTYPE((FILE *, char ***));
extern krb5_error_code list_union PROTOTYPE((char **, char **, char ***));
extern krb5_error_code filter PROTOTYPE((FILE *, char *, char **, char ***));
extern krb5_error_code get_authorized_princ_names
PROTOTYPE((const char *, char *, char ***));
extern krb5_error_code get_closest_principal
PROTOTYPE((krb5_context, char **, krb5_principal *, krb5_boolean *));
extern krb5_error_code find_either_ticket
PROTOTYPE((krb5_context, krb5_ccache, krb5_principal,
krb5_principal, krb5_boolean *));
extern krb5_error_code find_ticket
PROTOTYPE((krb5_context, krb5_ccache, krb5_principal,
krb5_principal, krb5_boolean *));
extern krb5_error_code find_princ_in_list
PROTOTYPE((krb5_context, krb5_principal, char **, krb5_boolean *));
extern krb5_error_code get_best_princ_for_target
PROTOTYPE((krb5_context, int, int, char *, char *, krb5_ccache,
opt_info *, char *, char *, krb5_principal *, int *));
extern krb5_error_code ksu_tgtname PROTOTYPE((krb5_context, const krb5_data *,
const krb5_data *,
krb5_principal *tgtprinc));
#ifndef min
#define min(a,b) ((a) > (b) ? (b) : (a))
#endif /* min */
extern char *krb5_lname_file; /* Note: print this out just be sure
that it gets set */
extern void *xmalloc PROTOTYPE((size_t)),
*xrealloc PROTOTYPE((void *, size_t)),
*xcalloc PROTOTYPE((size_t, size_t));
extern char *xstrdup PROTOTYPE((const char *));
#ifndef HAVE_UNSETENV
void unsetenv PROTOTYPE((char *));
#endif
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