81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
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* Copyright 1985, 1986, 1987, 1988 by the Massachusetts Institute
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* of Technology.
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* For copying and distribution information, please see the file
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* <Copyright.MIT>.
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*
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* from: tkt_string.c,v 4.6 89/01/05 12:31:51 raeburn Exp $
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* $Id: tkt_string.c,v 1.3 1995/07/18 16:39:52 mark Exp $
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*/
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#if 0
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#ifndef lint
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static char *rcsid =
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"$Id: tkt_string.c,v 1.3 1995/07/18 16:39:52 mark Exp $";
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#endif /* lint */
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <krb.h>
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#include <string.h>
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#include <sys/param.h>
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/*
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* This routine is used to generate the name of the file that holds
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* the user's cache of server tickets and associated session keys.
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*
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* If it is set, krb_ticket_string contains the ticket file name.
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* Otherwise, the filename is constructed as follows:
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*
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* If it is set, the environment variable "KRBTKFILE" will be used as
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* the ticket file name. Otherwise TKT_ROOT (defined in "krb.h") and
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* the user's uid are concatenated to produce the ticket file name
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* (e.g., "/tmp/tkt123"). A pointer to the string containing the ticket
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* file name is returned.
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*/
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static char krb_ticket_string[MAXPATHLEN] = "";
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char *tkt_string()
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{
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char *env;
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uid_t getuid();
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if (!*krb_ticket_string) {
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if ((env = getenv("KRBTKFILE"))) {
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(void) strncpy(krb_ticket_string, env,
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sizeof(krb_ticket_string)-1);
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krb_ticket_string[sizeof(krb_ticket_string)-1] = '\0';
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} else {
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/* 32 bits of signed integer will always fit in 11 characters
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(including the sign), so no need to worry about overflow */
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(void) sprintf(krb_ticket_string, "%s%ld",TKT_ROOT,getuid());
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}
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}
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return krb_ticket_string;
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}
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/*
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* This routine is used to set the name of the file that holds the user's
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* cache of server tickets and associated session keys.
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*
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* The value passed in is copied into local storage.
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*
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* NOTE: This routine should be called during initialization, before other
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* Kerberos routines are called; otherwise tkt_string() above may be called
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* and return an undesired ticket file name until this routine is called.
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*/
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void
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krb_set_tkt_string(val)
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char *val;
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{
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(void) strncpy(krb_ticket_string, val, sizeof(krb_ticket_string)-1);
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krb_ticket_string[sizeof(krb_ticket_string)-1] = '\0';
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return;
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}
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