71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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Copyright (C) 1989 by the Massachusetts Institute of Technology
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Export of this software from the United States of America is assumed
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to require a specific license from the United States Government.
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It is the responsibility of any person or organization contemplating
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export to obtain such a license before exporting.
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WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
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distribute this software and its documentation for any purpose and
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without fee is hereby granted, provided that the above copyright
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notice appear in all copies and that both that copyright notice and
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this permission notice appear in supporting documentation, and that
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the name of M.I.T. not be used in advertising or publicity pertaining
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to distribution of the software without specific, written prior
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permission. M.I.T. makes no representations about the suitability of
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this software for any purpose. It is provided "as is" without express
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or implied warranty.
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*/
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#include "krb_locl.h"
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RCSID("$Id: get_cred.c,v 1.1.1.3 2001/09/17 12:09:53 assar Exp $");
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/*
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* krb_get_cred takes a service name, instance, and realm, and a
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* structure of type CREDENTIALS to be filled in with ticket
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* information. It then searches the ticket file for the appropriate
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* ticket and fills in the structure with the corresponding
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* information from the file. If successful, it returns KSUCCESS.
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* On failure it returns a Kerberos error code.
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*/
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int
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krb_get_cred(const char *service, /* Service name */
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const char *instance, /* Instance */
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const char *realm, /* Auth domain */
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CREDENTIALS *c) /* Credentials struct */
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{
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int tf_status; /* return value of tf function calls */
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CREDENTIALS cr;
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if (c == NULL)
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c = &cr;
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/* Open ticket file and lock it for shared reading */
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if ((tf_status = tf_init(TKT_FILE, R_TKT_FIL)) != KSUCCESS)
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return(tf_status);
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/* Copy principal's name and instance into the CREDENTIALS struc c */
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if ( (tf_status = tf_get_pname(c->pname)) != KSUCCESS ||
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(tf_status = tf_get_pinst(c->pinst)) != KSUCCESS )
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return (tf_status);
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/* Search for requested service credentials and copy into c */
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while ((tf_status = tf_get_cred(c)) == KSUCCESS) {
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if ((strcmp(c->service,service) == 0) &&
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(strcmp(c->instance,instance) == 0) &&
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(strcmp(c->realm,realm) == 0))
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break;
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}
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tf_close();
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if (tf_status == EOF)
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return (GC_NOTKT);
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return(tf_status);
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}
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