/* * Copyright (c) 1997-2007 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Portions Copyright (c) 2009 Apple Inc. 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 "kuser_locl.h" #ifdef __APPLE__ #include <Security/Security.h> #endif struct krb5_dh_moduli; struct AlgorithmIdentifier; struct _krb5_krb_auth_data; struct hx509_certs_data; #include <krb5-private.h> #ifndef NO_NTLM #include "heimntlm.h" #endif int forwardable_flag = -1; int proxiable_flag = -1; int renewable_flag = -1; int renew_flag = 0; int pac_flag = -1; int validate_flag = 0; int version_flag = 0; int help_flag = 0; int addrs_flag = -1; struct getarg_strings extra_addresses; int anonymous_flag = 0; char *lifetime = NULL; char *renew_life = NULL; char *server_str = NULL; char *cred_cache = NULL; char *start_str = NULL; static int switch_cache_flags = 1; struct getarg_strings etype_str; int use_keytab = 0; char *keytab_str = NULL; int do_afslog = -1; int fcache_version; char *password_file = NULL; char *pk_user_id = NULL; int pk_enterprise_flag = 0; struct hx509_certs_data *ent_user_id = NULL; char *pk_x509_anchors = NULL; int pk_use_enckey = 0; static int canonicalize_flag = 0; static int enterprise_flag = 0; static int ok_as_delegate_flag = 0; static int use_referrals_flag = 0; static int windows_flag = 0; #ifndef NO_NTLM static char *ntlm_domain; #endif static struct getargs args[] = { /* * used by MIT * a: ~A * V: verbose * F: ~f * P: ~p * C: v4 cache name? * 5: * * old flags * 4: * 9: */ { "afslog", 0 , arg_flag, &do_afslog, NP_("obtain afs tokens", "") }, { "cache", 'c', arg_string, &cred_cache, NP_("credentials cache", ""), "cachename" }, { "forwardable", 'f', arg_negative_flag, &forwardable_flag, NP_("get forwardable tickets", "")}, { "keytab", 't', arg_string, &keytab_str, NP_("keytab to use", ""), "keytabname" }, { "lifetime", 'l', arg_string, &lifetime, NP_("lifetime of tickets", ""), "time"}, { "proxiable", 'p', arg_flag, &proxiable_flag, NP_("get proxiable tickets", "") }, { "renew", 'R', arg_flag, &renew_flag, NP_("renew TGT", "") }, { "renewable", 0, arg_flag, &renewable_flag, NP_("get renewable tickets", "") }, { "renewable-life", 'r', arg_string, &renew_life, NP_("renewable lifetime of tickets", ""), "time" }, { "server", 'S', arg_string, &server_str, NP_("server to get ticket for", ""), "principal" }, { "start-time", 's', arg_string, &start_str, NP_("when ticket gets valid", ""), "time" }, { "use-keytab", 'k', arg_flag, &use_keytab, NP_("get key from keytab", "") }, { "validate", 'v', arg_flag, &validate_flag, NP_("validate TGT", "") }, { "enctypes", 'e', arg_strings, &etype_str, NP_("encryption types to use", ""), "enctypes" }, { "fcache-version", 0, arg_integer, &fcache_version, NP_("file cache version to create", "") }, { "addresses", 'A', arg_negative_flag, &addrs_flag, NP_("request a ticket with no addresses", "") }, { "extra-addresses",'a', arg_strings, &extra_addresses, NP_("include these extra addresses", ""), "addresses" }, { "anonymous", 0, arg_flag, &anonymous_flag, NP_("request an anonymous ticket", "") }, { "request-pac", 0, arg_flag, &pac_flag, NP_("request a Windows PAC", "") }, { "password-file", 0, arg_string, &password_file, NP_("read the password from a file", "") }, { "canonicalize",0, arg_flag, &canonicalize_flag, NP_("canonicalize client principal", "") }, { "enterprise",0, arg_flag, &enterprise_flag, NP_("parse principal as a KRB5-NT-ENTERPRISE name", "") }, #ifdef PKINIT { "pk-enterprise", 0, arg_flag, &pk_enterprise_flag, NP_("use enterprise name from certificate", "") }, { "pk-user", 'C', arg_string, &pk_user_id, NP_("principal's public/private/certificate identifier", ""), "id" }, { "x509-anchors", 'D', arg_string, &pk_x509_anchors, NP_("directory with CA certificates", ""), "directory" }, { "pk-use-enckey", 0, arg_flag, &pk_use_enckey, NP_("Use RSA encrypted reply (instead of DH)", "") }, #endif #ifndef NO_NTLM { "ntlm-domain", 0, arg_string, &ntlm_domain, NP_("NTLM domain", ""), "domain" }, #endif { "change-default", 0, arg_negative_flag, &switch_cache_flags, NP_("switch the default cache to the new credentials cache", "") }, { "ok-as-delegate", 0, arg_flag, &ok_as_delegate_flag, NP_("honor ok-as-delegate on tickets", "") }, { "use-referrals", 0, arg_flag, &use_referrals_flag, NP_("only use referrals, no dns canalisation", "") }, { "windows", 0, arg_flag, &windows_flag, NP_("get windows behavior", "") }, { "version", 0, arg_flag, &version_flag }, { "help", 0, arg_flag, &help_flag } }; static void usage (int ret) { arg_printusage_i18n (args, sizeof(args)/sizeof(*args), N_("Usage: ", ""), NULL, "[principal [command]]", getarg_i18n); exit (ret); } static krb5_error_code get_server(krb5_context context, krb5_principal client, const char *server, krb5_principal *princ) { krb5_const_realm realm; if(server) return krb5_parse_name(context, server, princ); realm = krb5_principal_get_realm(context, client); return krb5_make_principal(context, princ, realm, KRB5_TGS_NAME, realm, NULL); } static int renew_validate(krb5_context context, int renew, int validate, krb5_ccache cache, const char *server, krb5_deltat life) { krb5_error_code ret; krb5_creds in, *out = NULL; krb5_kdc_flags flags; memset(&in, 0, sizeof(in)); ret = krb5_cc_get_principal(context, cache, &in.client); if(ret) { krb5_warn(context, ret, "krb5_cc_get_principal"); return ret; } ret = get_server(context, in.client, server, &in.server); if(ret) { krb5_warn(context, ret, "get_server"); goto out; } if (renew) { /* * no need to check the error here, it's only to be * friendly to the user */ krb5_get_credentials(context, KRB5_GC_CACHED, cache, &in, &out); } flags.i = 0; flags.b.renewable = flags.b.renew = renew; flags.b.validate = validate; if (forwardable_flag != -1) flags.b.forwardable = forwardable_flag; else if (out) flags.b.forwardable = out->flags.b.forwardable; if (proxiable_flag != -1) flags.b.proxiable = proxiable_flag; else if (out) flags.b.proxiable = out->flags.b.proxiable; if (anonymous_flag) flags.b.request_anonymous = anonymous_flag; if(life) in.times.endtime = time(NULL) + life; if (out) { krb5_free_creds (context, out); out = NULL; } ret = krb5_get_kdc_cred(context, cache, flags, NULL, NULL, &in, &out); if(ret) { krb5_warn(context, ret, "krb5_get_kdc_cred"); goto out; } ret = krb5_cc_initialize(context, cache, in.client); if(ret) { krb5_free_creds (context, out); krb5_warn(context, ret, "krb5_cc_initialize"); goto out; } ret = krb5_cc_store_cred(context, cache, out); if(ret == 0 && server == NULL) { /* only do this if it's a general renew-my-tgt request */ #ifndef NO_AFS if(do_afslog && k_hasafs()) krb5_afslog(context, cache, NULL, NULL); #endif } krb5_free_creds (context, out); if(ret) { krb5_warn(context, ret, "krb5_cc_store_cred"); goto out; } out: krb5_free_cred_contents(context, &in); return ret; } #ifndef NO_NTLM static krb5_error_code store_ntlmkey(krb5_context context, krb5_ccache id, const char *domain, struct ntlm_buf *buf) { krb5_error_code ret; krb5_data data; char *name; asprintf(&name, "ntlm-key-%s", domain); if (name == NULL) { krb5_clear_error_message(context); return ENOMEM; } data.length = buf->length; data.data = buf->data; ret = krb5_cc_set_config(context, id, NULL, name, &data); free(name); return ret; } #endif static krb5_error_code get_new_tickets(krb5_context context, krb5_principal principal, krb5_ccache ccache, krb5_deltat ticket_life, int interactive) { krb5_error_code ret; krb5_get_init_creds_opt *opt; krb5_creds cred; char passwd[256]; krb5_deltat start_time = 0; krb5_deltat renew = 0; char *renewstr = NULL; krb5_enctype *enctype = NULL; krb5_ccache tempccache; #ifndef NO_NTLM struct ntlm_buf ntlmkey; memset(&ntlmkey, 0, sizeof(ntlmkey)); #endif passwd[0] = '\0'; if (password_file) { FILE *f; if (strcasecmp("STDIN", password_file) == 0) f = stdin; else f = fopen(password_file, "r"); if (f == NULL) krb5_errx(context, 1, "Failed to open the password file %s", password_file); if (fgets(passwd, sizeof(passwd), f) == NULL) krb5_errx(context, 1, N_("Failed to read password from file %s", ""), password_file); if (f != stdin) fclose(f); passwd[strcspn(passwd, "\n")] = '\0'; } #ifdef __APPLE__ if (passwd[0] == '\0') { const char *realm; OSStatus osret; UInt32 length; void *buffer; char *name; realm = krb5_principal_get_realm(context, principal); ret = krb5_unparse_name_flags(context, principal, KRB5_PRINCIPAL_UNPARSE_NO_REALM, &name); if (ret) goto nopassword; osret = SecKeychainFindGenericPassword(NULL, strlen(realm), realm, strlen(name), name, &length, &buffer, NULL); free(name); if (osret == noErr && length < sizeof(passwd) - 1) { memcpy(passwd, buffer, length); passwd[length] = '\0'; } nopassword: do { } while(0); } #endif memset(&cred, 0, sizeof(cred)); ret = krb5_get_init_creds_opt_alloc (context, &opt); if (ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc"); krb5_get_init_creds_opt_set_default_flags(context, "kinit", krb5_principal_get_realm(context, principal), opt); if(forwardable_flag != -1) krb5_get_init_creds_opt_set_forwardable (opt, forwardable_flag); if(proxiable_flag != -1) krb5_get_init_creds_opt_set_proxiable (opt, proxiable_flag); if(anonymous_flag) krb5_get_init_creds_opt_set_anonymous (opt, anonymous_flag); if (pac_flag != -1) krb5_get_init_creds_opt_set_pac_request(context, opt, pac_flag ? TRUE : FALSE); if (canonicalize_flag) krb5_get_init_creds_opt_set_canonicalize(context, opt, TRUE); if ((pk_enterprise_flag || enterprise_flag || canonicalize_flag) && windows_flag) krb5_get_init_creds_opt_set_win2k(context, opt, TRUE); if (pk_user_id || ent_user_id || anonymous_flag) { ret = krb5_get_init_creds_opt_set_pkinit(context, opt, principal, pk_user_id, pk_x509_anchors, NULL, NULL, pk_use_enckey ? 2 : 0 | anonymous_flag ? 4 : 0, krb5_prompter_posix, NULL, passwd); if (ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_set_pkinit"); if (ent_user_id) _krb5_get_init_creds_opt_set_pkinit_user_certs(context, opt, ent_user_id); } if (addrs_flag != -1) krb5_get_init_creds_opt_set_addressless(context, opt, addrs_flag ? FALSE : TRUE); if (renew_life == NULL && renewable_flag) renewstr = "1 month"; if (renew_life) renewstr = renew_life; if (renewstr) { renew = parse_time (renewstr, "s"); if (renew < 0) errx (1, "unparsable time: %s", renewstr); krb5_get_init_creds_opt_set_renew_life (opt, renew); } if(ticket_life != 0) krb5_get_init_creds_opt_set_tkt_life (opt, ticket_life); if(start_str) { int tmp = parse_time (start_str, "s"); if (tmp < 0) errx (1, N_("unparsable time: %s", ""), start_str); start_time = tmp; } if(etype_str.num_strings) { int i; enctype = malloc(etype_str.num_strings * sizeof(*enctype)); if(enctype == NULL) errx(1, "out of memory"); for(i = 0; i < etype_str.num_strings; i++) { ret = krb5_string_to_enctype(context, etype_str.strings[i], &enctype[i]); if(ret) errx(1, "unrecognized enctype: %s", etype_str.strings[i]); } krb5_get_init_creds_opt_set_etype_list(opt, enctype, etype_str.num_strings); } if(use_keytab || keytab_str) { krb5_keytab kt; if(keytab_str) ret = krb5_kt_resolve(context, keytab_str, &kt); else ret = krb5_kt_default(context, &kt); if (ret) krb5_err (context, 1, ret, "resolving keytab"); ret = krb5_get_init_creds_keytab (context, &cred, principal, kt, start_time, server_str, opt); krb5_kt_close(context, kt); } else if (pk_user_id || ent_user_id || anonymous_flag) { ret = krb5_get_init_creds_password (context, &cred, principal, passwd, krb5_prompter_posix, NULL, start_time, server_str, opt); } else if (!interactive) { krb5_warnx(context, "Not interactive, failed to get initial ticket"); krb5_get_init_creds_opt_free(context, opt); return 0; } else { if (passwd[0] == '\0') { char *p, *prompt; krb5_unparse_name (context, principal, &p); asprintf (&prompt, N_("%s's Password: ", ""), p); free (p); if (UI_UTIL_read_pw_string(passwd, sizeof(passwd)-1, prompt, 0)){ memset(passwd, 0, sizeof(passwd)); exit(1); } free (prompt); } ret = krb5_get_init_creds_password (context, &cred, principal, passwd, krb5_prompter_posix, NULL, start_time, server_str, opt); } krb5_get_init_creds_opt_free(context, opt); #ifndef NO_NTLM if (ntlm_domain && passwd[0]) heim_ntlm_nt_key(passwd, &ntlmkey); #endif memset(passwd, 0, sizeof(passwd)); switch(ret){ case 0: break; case KRB5_LIBOS_PWDINTR: /* don't print anything if it was just C-c:ed */ exit(1); case KRB5KRB_AP_ERR_BAD_INTEGRITY: case KRB5KRB_AP_ERR_MODIFIED: case KRB5KDC_ERR_PREAUTH_FAILED: krb5_errx(context, 1, N_("Password incorrect", "")); break; case KRB5KRB_AP_ERR_V4_REPLY: krb5_errx(context, 1, N_("Looks like a Kerberos 4 reply", "")); break; default: krb5_err(context, 1, ret, "krb5_get_init_creds"); } if(ticket_life != 0) { if(abs(cred.times.endtime - cred.times.starttime - ticket_life) > 30) { char life[64]; unparse_time_approx(cred.times.endtime - cred.times.starttime, life, sizeof(life)); krb5_warnx(context, N_("NOTICE: ticket lifetime is %s", ""), life); } } if(renew_life) { if(abs(cred.times.renew_till - cred.times.starttime - renew) > 30) { char life[64]; unparse_time_approx(cred.times.renew_till - cred.times.starttime, life, sizeof(life)); krb5_warnx(context, N_("NOTICE: ticket renewable lifetime is %s", ""), life); } } ret = krb5_cc_new_unique(context, krb5_cc_get_type(context, ccache), NULL, &tempccache); if (ret) krb5_err (context, 1, ret, "krb5_cc_new_unique"); ret = krb5_cc_initialize (context, tempccache, cred.client); if (ret) krb5_err (context, 1, ret, "krb5_cc_initialize"); ret = krb5_cc_store_cred (context, tempccache, &cred); if (ret) krb5_err (context, 1, ret, "krb5_cc_store_cred"); krb5_free_cred_contents (context, &cred); ret = krb5_cc_move(context, tempccache, ccache); if (ret) krb5_err (context, 1, ret, "krb5_cc_move"); if (switch_cache_flags) krb5_cc_switch(context, ccache); #ifndef NO_NTLM if (ntlm_domain && ntlmkey.data) store_ntlmkey(context, ccache, ntlm_domain, &ntlmkey); #endif if (ok_as_delegate_flag || windows_flag || use_referrals_flag) { unsigned char d = 0; krb5_data data; if (ok_as_delegate_flag || windows_flag) d |= 1; if (use_referrals_flag || windows_flag) d |= 2; data.length = 1; data.data = &d; krb5_cc_set_config(context, ccache, NULL, "realm-config", &data); } if (enctype) free(enctype); return 0; } static time_t ticket_lifetime(krb5_context context, krb5_ccache cache, krb5_principal client, const char *server) { krb5_creds in_cred, *cred; krb5_error_code ret; time_t timeout; memset(&in_cred, 0, sizeof(in_cred)); ret = krb5_cc_get_principal(context, cache, &in_cred.client); if(ret) { krb5_warn(context, ret, "krb5_cc_get_principal"); return 0; } ret = get_server(context, in_cred.client, server, &in_cred.server); if(ret) { krb5_free_principal(context, in_cred.client); krb5_warn(context, ret, "get_server"); return 0; } ret = krb5_get_credentials(context, KRB5_GC_CACHED, cache, &in_cred, &cred); krb5_free_principal(context, in_cred.client); krb5_free_principal(context, in_cred.server); if(ret) { krb5_warn(context, ret, "krb5_get_credentials"); return 0; } timeout = cred->times.endtime - cred->times.starttime; if (timeout < 0) timeout = 0; krb5_free_creds(context, cred); return timeout; } struct renew_ctx { krb5_context context; krb5_ccache ccache; krb5_principal principal; krb5_deltat ticket_life; }; static time_t renew_func(void *ptr) { struct renew_ctx *ctx = ptr; krb5_error_code ret; time_t expire; int new_tickets = 0; if (renewable_flag) { ret = renew_validate(ctx->context, renewable_flag, validate_flag, ctx->ccache, server_str, ctx->ticket_life); if (ret) new_tickets = 1; } else new_tickets = 1; if (new_tickets) get_new_tickets(ctx->context, ctx->principal, ctx->ccache, ctx->ticket_life, 0); #ifndef NO_AFS if(do_afslog && k_hasafs()) krb5_afslog(ctx->context, ctx->ccache, NULL, NULL); #endif expire = ticket_lifetime(ctx->context, ctx->ccache, ctx->principal, server_str) / 2; return expire + 1; } int main (int argc, char **argv) { krb5_error_code ret; krb5_context context; krb5_ccache ccache; krb5_principal principal; int optidx = 0; krb5_deltat ticket_life = 0; int parseflags = 0; setprogname (argv[0]); setlocale (LC_ALL, ""); bindtextdomain ("heimdal_kuser", HEIMDAL_LOCALEDIR); textdomain("heimdal_kuser"); ret = krb5_init_context (&context); if (ret == KRB5_CONFIG_BADFORMAT) errx (1, "krb5_init_context failed to parse configuration file"); else if (ret) errx(1, "krb5_init_context failed: %d", ret); if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) usage(1); if (help_flag) usage (0); if(version_flag) { print_version(NULL); exit(0); } argc -= optidx; argv += optidx; if (canonicalize_flag || enterprise_flag) parseflags |= KRB5_PRINCIPAL_PARSE_ENTERPRISE; if (pk_enterprise_flag) { ret = _krb5_pk_enterprise_cert(context, pk_user_id, argv[0], &principal, &ent_user_id); if (ret) krb5_err(context, 1, ret, "krb5_pk_enterprise_certs"); pk_user_id = NULL; } else if (anonymous_flag) { ret = krb5_make_principal(context, &principal, argv[0], KRB5_WELLKNOWN_NAME, KRB5_ANON_NAME, NULL); if (ret) krb5_err(context, 1, ret, "krb5_make_principal"); krb5_principal_set_type(context, principal, KRB5_NT_WELLKNOWN); } else { if (argv[0]) { ret = krb5_parse_name_flags (context, argv[0], parseflags, &principal); if (ret) krb5_err (context, 1, ret, "krb5_parse_name"); } else { ret = krb5_get_default_principal (context, &principal); if (ret) krb5_err (context, 1, ret, "krb5_get_default_principal"); } } if(fcache_version) krb5_set_fcache_version(context, fcache_version); if(renewable_flag == -1) /* this seems somewhat pointless, but whatever */ krb5_appdefault_boolean(context, "kinit", krb5_principal_get_realm(context, principal), "renewable", FALSE, &renewable_flag); if(do_afslog == -1) krb5_appdefault_boolean(context, "kinit", krb5_principal_get_realm(context, principal), "afslog", TRUE, &do_afslog); if(cred_cache) ret = krb5_cc_resolve(context, cred_cache, &ccache); else { if(argc > 1) { char s[1024]; ret = krb5_cc_new_unique(context, NULL, NULL, &ccache); if(ret) krb5_err(context, 1, ret, "creating cred cache"); snprintf(s, sizeof(s), "%s:%s", krb5_cc_get_type(context, ccache), krb5_cc_get_name(context, ccache)); setenv("KRB5CCNAME", s, 1); } else { ret = krb5_cc_cache_match(context, principal, &ccache); if (ret) { const char *type; ret = krb5_cc_default (context, &ccache); if (ret) krb5_err (context, 1, ret, N_("resolving credentials cache", "")); /* * Check if the type support switching, and we do, * then do that instead over overwriting the current * default credential */ type = krb5_cc_get_type(context, ccache); if (krb5_cc_support_switch(context, type)) { krb5_cc_close(context, ccache); ret = krb5_cc_new_unique(context, type, NULL, &ccache); } } } } if (ret) krb5_err (context, 1, ret, N_("resolving credentials cache", "")); #ifndef NO_AFS if(argc > 1 && k_hasafs ()) k_setpag(); #endif if (lifetime) { int tmp = parse_time (lifetime, "s"); if (tmp < 0) errx (1, N_("unparsable time: %s", ""), lifetime); ticket_life = tmp; } if(addrs_flag == 0 && extra_addresses.num_strings > 0) krb5_errx(context, 1, N_("specifying both extra addresses and " "no addresses makes no sense", "")); { int i; krb5_addresses addresses; memset(&addresses, 0, sizeof(addresses)); for(i = 0; i < extra_addresses.num_strings; i++) { ret = krb5_parse_address(context, extra_addresses.strings[i], &addresses); if (ret == 0) { krb5_add_extra_addresses(context, &addresses); krb5_free_addresses(context, &addresses); } } free_getarg_strings(&extra_addresses); } if(renew_flag || validate_flag) { ret = renew_validate(context, renew_flag, validate_flag, ccache, server_str, ticket_life); exit(ret != 0); } get_new_tickets(context, principal, ccache, ticket_life, 1); #ifndef NO_AFS if(do_afslog && k_hasafs()) krb5_afslog(context, ccache, NULL, NULL); #endif if(argc > 1) { struct renew_ctx ctx; time_t timeout; timeout = ticket_lifetime(context, ccache, principal, server_str) / 2; ctx.context = context; ctx.ccache = ccache; ctx.principal = principal; ctx.ticket_life = ticket_life; ret = simple_execvp_timed(argv[1], argv+1, renew_func, &ctx, timeout); #define EX_NOEXEC 126 #define EX_NOTFOUND 127 if(ret == EX_NOEXEC) krb5_warnx(context, N_("permission denied: %s", ""), argv[1]); else if(ret == EX_NOTFOUND) krb5_warnx(context, N_("command not found: %s", ""), argv[1]); krb5_cc_destroy(context, ccache); #ifndef NO_AFS if(k_hasafs()) k_unlog(); #endif } else { krb5_cc_close (context, ccache); ret = 0; } krb5_free_principal(context, principal); krb5_free_context (context); return ret; }