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127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kauth.h"
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RCSID("$Id: marshall.c,v 1.10 1999/12/02 16:58:31 joda Exp $");
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int
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pack_args (char *buf,
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size_t sz,
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krb_principal *pr,
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int lifetime,
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const char *locuser,
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const char *tktfile)
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{
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char *p = buf;
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int len;
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p = buf;
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len = strlen(pr->name);
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if (len >= sz)
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return -1;
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memcpy (p, pr->name, len + 1);
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p += len + 1;
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sz -= len + 1;
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len = strlen(pr->instance);
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if (len >= sz)
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return -1;
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memcpy (p, pr->instance, len + 1);
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p += len + 1;
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sz -= len + 1;
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len = strlen(pr->realm);
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if (len >= sz)
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return -1;
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memcpy(p, pr->realm, len + 1);
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p += len + 1;
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sz -= len + 1;
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if (sz < 1)
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return -1;
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*p++ = (unsigned char)lifetime;
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len = strlen(locuser);
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if (len >= sz)
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return -1;
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memcpy (p, locuser, len + 1);
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p += len + 1;
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sz -= len + 1;
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len = strlen(tktfile);
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if (len >= sz)
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return -1;
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memcpy (p, tktfile, len + 1);
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p += len + 1;
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sz -= len + 1;
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return p - buf;
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}
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int
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unpack_args (const char *buf, krb_principal *pr, int *lifetime,
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char *locuser, char *tktfile)
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{
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int len;
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len = strlen(buf);
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if (len >= SNAME_SZ)
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return -1;
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strlcpy (pr->name, buf, ANAME_SZ);
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buf += len + 1;
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len = strlen (buf);
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if (len >= INST_SZ)
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return -1;
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strlcpy (pr->instance, buf, INST_SZ);
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buf += len + 1;
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len = strlen (buf);
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if (len >= REALM_SZ)
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return -1;
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strlcpy (pr->realm, buf, REALM_SZ);
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buf += len + 1;
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*lifetime = (unsigned char)*buf++;
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len = strlen(buf);
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if (len >= SNAME_SZ)
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return -1;
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strlcpy (locuser, buf, SNAME_SZ);
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buf += len + 1;
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len = strlen(buf);
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if (len >= MaxPathLen)
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return -1;
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strlcpy (tktfile, buf, MaxPathLen);
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buf += len + 1;
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return 0;
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}
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