1 /* 2 * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* 9 * lib/krb5/os/ktdefname.c 10 * 11 * Copyright 1990 by the Massachusetts Institute of Technology. 12 * All Rights Reserved. 13 * 14 * Export of this software from the United States of America may 15 * require a specific license from the United States Government. 16 * It is the responsibility of any person or organization contemplating 17 * export to obtain such a license before exporting. 18 * 19 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and 20 * distribute this software and its documentation for any purpose and 21 * without fee is hereby granted, provided that the above copyright 22 * notice appear in all copies and that both that copyright notice and 23 * this permission notice appear in supporting documentation, and that 24 * the name of M.I.T. not be used in advertising or publicity pertaining 25 * to distribution of the software without specific, written prior 26 * permission. Furthermore if you modify this software you must label 27 * your software as modified software and not distribute it in such a 28 * fashion that it might be confused with the original M.I.T. software. 29 * M.I.T. makes no representations about the suitability of 30 * this software for any purpose. It is provided "as is" without express 31 * or implied warranty. 32 * 33 * 34 * Return default keytab file name. 35 */ 36 37 #define NEED_WINDOWS 38 39 #include <k5-int.h> 40 41 extern char *krb5_defkeyname; 42 43 /* this is a an exceedinly gross thing. */ 44 char *krb5_overridekeyname = NULL; 45 46 KRB5_DLLIMP krb5_error_code KRB5_CALLCONV 47 krb5_kt_default_name(context, name, namesize) 48 krb5_context context; 49 char FAR *name; 50 int namesize; 51 { 52 char *cp = 0; 53 char *retval; 54 55 if (krb5_overridekeyname) { 56 if ((size_t) namesize < (strlen(krb5_overridekeyname)+1)) 57 return KRB5_CONFIG_NOTENUFSPACE; 58 strncpy(name, krb5_overridekeyname, namesize); 59 } else if ((context->profile_secure == FALSE) && 60 (cp = getenv("KRB5_KTNAME"))) { 61 if ((size_t) namesize < (strlen(cp)+1)) 62 return KRB5_CONFIG_NOTENUFSPACE; 63 strncpy(name, cp, namesize); 64 } else if ((profile_get_string(context->profile, 65 "libdefaults", 66 "default_keytab_name", NULL, 67 NULL, &retval) == 0) && 68 retval) { 69 if ((size_t) namesize < (strlen(retval)+1)) 70 return KRB5_CONFIG_NOTENUFSPACE; 71 strncpy(name, retval, namesize); 72 profile_release_string(retval); 73 } else { 74 #if defined (_MSDOS) || defined(_WIN32) 75 { 76 char defname[160]; 77 int len; 78 79 len= GetWindowsDirectory( defname, sizeof(defname)-2 ); 80 defname[len]= '\0'; 81 if ( (len + strlen(krb5_defkeyname) + 1) > namesize ) 82 return KRB5_CONFIG_NOTENUFSPACE; 83 sprintf(name, krb5_defkeyname, defname); 84 } 85 #else 86 if ((size_t) namesize < (strlen(krb5_defkeyname)+1)) 87 return KRB5_CONFIG_NOTENUFSPACE; 88 strncpy(name, krb5_defkeyname, namesize); 89 #endif 90 } 91 return 0; 92 } 93