diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/read_service_key.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/read_service_key.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/crypto/kerberosIV/lib/krb/read_service_key.c b/crypto/kerberosIV/lib/krb/read_service_key.c deleted file mode 100644 index 55fb98d..0000000 --- a/crypto/kerberosIV/lib/krb/read_service_key.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - Copyright (C) 1989 by the Massachusetts Institute of Technology - - Export of this software from the United States of America is assumed - to 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 use, copy, modify, and -distribute this software and its documentation for any purpose and -without fee is hereby granted, provided that the above copyright -notice appear in all copies and that both that copyright notice and -this permission notice appear in supporting documentation, and that -the name of M.I.T. not be used in advertising or publicity pertaining -to distribution of the software without specific, written prior -permission. M.I.T. makes no representations about the suitability of -this software for any purpose. It is provided "as is" without express -or implied warranty. - - */ - -#include "krb_locl.h" - -RCSID("$Id: read_service_key.c,v 1.12 1999/09/16 20:41:54 assar Exp $"); - -/* - * The private keys for servers on a given host are stored in a - * "srvtab" file (typically "/etc/srvtab"). This routine extracts - * a given server's key from the file. - * - * read_service_key() takes the server's name ("service"), "instance", - * and "realm" and a key version number "kvno", and looks in the given - * "file" for the corresponding entry, and if found, returns the entry's - * key field in "key". - * - * If "instance" contains the string "*", then it will match - * any instance, and the chosen instance will be copied to that - * string. For this reason it is important that the there is enough - * space beyond the "*" to receive the entry. - * - * If "kvno" is 0, it is treated as a wild card and the first - * matching entry regardless of the "vno" field is returned. - * - * This routine returns KSUCCESS on success, otherwise KFAILURE. - * - * The format of each "srvtab" entry is as follows: - * - * Size Variable Field in file - * ---- -------- ------------- - * string serv server name - * string inst server instance - * string realm server realm - * 1 byte vno server key version # - * 8 bytes key server's key - * ... ... ... - */ - - -int -read_service_key(const char *service, /* Service Name */ - char *instance, /* Instance name or "*" */ - const char *realm, /* Realm */ - int kvno, /* Key version number */ - const char *file, /* Filename */ - void *key) /* Pointer to key to be filled in */ -{ - char serv[SNAME_SZ]; - char inst[INST_SZ]; - char rlm[REALM_SZ]; - unsigned char vno; /* Key version number */ - int wcard; - - int stab; - - if ((stab = open(file, O_RDONLY, 0)) < 0) - return(KFAILURE); - - wcard = (instance[0] == '*') && (instance[1] == '\0'); - - while (getst(stab,serv,SNAME_SZ) > 0) { /* Read sname */ - getst(stab,inst,INST_SZ); /* Instance */ - getst(stab,rlm,REALM_SZ); /* Realm */ - /* Vers number */ - if (read(stab, &vno, 1) != 1) { - close(stab); - return(KFAILURE); - } - /* Key */ - if (read(stab,key,8) != 8) { - close(stab); - return(KFAILURE); - } - /* Is this the right service */ - if (strcmp(serv,service)) - continue; - /* How about instance */ - if (!wcard && strcmp(inst,instance)) - continue; - if (wcard) { - strlcpy (instance, inst, INST_SZ); - } - /* Is this the right realm */ - if (strcmp(rlm,realm)) - continue; - - /* How about the key version number */ - if (kvno && kvno != (int) vno) - continue; - - close(stab); - return(KSUCCESS); - } - - /* Can't find the requested service */ - close(stab); - return(KFAILURE); -} |
