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Annotation of 43BSDReno/kerberosIV/krb/kntoln.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * $Source: /usr/src/kerberosIV/krb/RCS/kntoln.c,v $
                      3:  * $Author: kfall $
                      4:  *
                      5:  * Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
                      6:  * of Technology.
                      7:  *
                      8:  * For copying and distribution information, please see the file
                      9:  * <mit-copyright.h>.
                     10:  */
                     11: 
                     12: #ifndef lint
                     13: static char *rcsid_kntoln_c =
                     14: "$Header: /usr/src/kerberosIV/krb/RCS/kntoln.c,v 4.9 90/06/25 20:56:40 kfall Exp $";
                     15: #endif /* lint */
                     16: 
                     17: #include <mit-copyright.h>
                     18: #include <des.h>
                     19: #include <krb.h>
                     20: #include <strings.h>
                     21: 
                     22: /*
                     23:  * krb_kntoln converts an auth name into a local name by looking up
                     24:  * the auth name in the /etc/aname file.  The format of the aname
                     25:  * file is:
                     26:  *
                     27:  * +-----+-----+-----+-----+------+----------+-------+-------+
                     28:  * | anl | inl | rll | lnl | name | instance | realm | lname |
                     29:  * +-----+-----+-----+-----+------+----------+-------+-------+
                     30:  * | 1by | 1by | 1by | 1by | name | instance | realm | lname |
                     31:  * +-----+-----+-----+-----+------+----------+-------+-------+
                     32:  *
                     33:  * If the /etc/aname file can not be opened it will set the
                     34:  * local name to the auth name.  Thus, in this case it performs as
                     35:  * the identity function.
                     36:  *
                     37:  * The name instance and realm are passed to krb_kntoln through
                     38:  * the AUTH_DAT structure (ad).
                     39:  *
                     40:  * Now here's what it *really* does:
                     41:  *
                     42:  * Given a Kerberos name in an AUTH_DAT structure, check that the
                     43:  * instance is null, and that the realm is the same as the local
                     44:  * realm, and return the principal's name in "lname".  Return
                     45:  * KSUCCESS if all goes well, otherwise KFAILURE.
                     46:  */
                     47: 
                     48: krb_kntoln(ad,lname)
                     49:     AUTH_DAT *ad;
                     50:     char *lname;
                     51: {
                     52:     static char lrealm[REALM_SZ] = "";
                     53: 
                     54:     if (!(*lrealm) && (krb_get_lrealm(lrealm,1) == KFAILURE))
                     55:         return(KFAILURE);
                     56: 
                     57:     if (strcmp(ad->pinst,""))
                     58:         return(KFAILURE);
                     59:     if (strcmp(ad->prealm,lrealm))
                     60:         return(KFAILURE);
                     61:     (void) strcpy(lname,ad->pname);
                     62:     return(KSUCCESS);
                     63: }

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