NetBSD/gnu/libexec/uucp/libuuconf/callin.c

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/* callin.c
Check a login name and password against the UUCP password file.
Copyright (C) 1992 Ian Lance Taylor
This file is part of the Taylor UUCP uuconf library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
The author of the program may be contacted at ian@airs.com or
c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
*/
#include "uucnfi.h"
#if USE_RCS_ID
const char _uuconf_callin_rcsid[] = "$Id: callin.c,v 1.1 1993/08/04 19:33:42 jtc Exp $";
#endif
#include <errno.h>
static int iplogin P((pointer pglobal, int argc, char **argv,
pointer pvar, pointer pinfo));
/* Check a login name and password against the UUCP password file.
This looks at the Taylor UUCP password file, but will work even if
uuconf_taylor_init was not called. */
int
uuconf_callin (pglobal, zlogin, zpassword)
pointer pglobal;
const char *zlogin;
const char *zpassword;
{
struct sglobal *qglobal = (struct sglobal *) pglobal;
int iret;
char **pz;
struct uuconf_cmdtab as[2];
char *zfilepass;
/* If we have no password file names, fill in the default name. */
if (qglobal->qprocess->pzpwdfiles == NULL)
{
char ab[sizeof NEWCONFIGLIB + sizeof PASSWDFILE - 1];
memcpy ((pointer) ab, (pointer) NEWCONFIGLIB,
sizeof NEWCONFIGLIB - 1);
memcpy ((pointer) (ab + sizeof NEWCONFIGLIB - 1), (pointer) PASSWDFILE,
sizeof PASSWDFILE);
iret = _uuconf_iadd_string (qglobal, ab, TRUE, FALSE,
&qglobal->qprocess->pzpwdfiles,
qglobal->pblock);
if (iret != UUCONF_SUCCESS)
return iret;
}
as[0].uuconf_zcmd = zlogin;
as[0].uuconf_itype = UUCONF_CMDTABTYPE_FN | 2;
as[0].uuconf_pvar = (pointer) &zfilepass;
as[0].uuconf_pifn = iplogin;
as[1].uuconf_zcmd = NULL;
zfilepass = NULL;
iret = UUCONF_SUCCESS;
for (pz = qglobal->qprocess->pzpwdfiles; *pz != NULL; pz++)
{
FILE *e;
e = fopen (*pz, "r");
if (e == NULL)
{
if (FNO_SUCH_FILE ())
continue;
qglobal->ierrno = errno;
iret = UUCONF_FOPEN_FAILED | UUCONF_ERROR_ERRNO;
break;
}
iret = uuconf_cmd_file (pglobal, e, as, (pointer) NULL,
(uuconf_cmdtabfn) NULL,
UUCONF_CMDTABFLAG_CASE, (pointer) NULL);
(void) fclose (e);
if (iret != UUCONF_SUCCESS || zfilepass != NULL)
break;
}
if (iret != UUCONF_SUCCESS)
{
qglobal->zfilename = *pz;
iret |= UUCONF_ERROR_FILENAME;
}
else if (zfilepass == NULL
|| strcmp (zfilepass, zpassword) != 0)
iret = UUCONF_NOT_FOUND;
if (zfilepass != NULL)
free ((pointer) zfilepass);
return iret;
}
/* This is called if it is the name we are looking for. The pvar
argument points to zfilepass, and we set it to the password. */
static int
iplogin (pglobal, argc, argv, pvar, pinfo)
pointer pglobal;
int argc;
char **argv;
pointer pvar;
pointer pinfo;
{
struct sglobal *qglobal = (struct sglobal *) pglobal;
char **pzpass = (char **) pvar;
*pzpass = strdup (argv[1]);
if (*pzpass == NULL)
{
qglobal->ierrno = errno;
return (UUCONF_MALLOC_FAILED
| UUCONF_ERROR_ERRNO
| UUCONF_CMDTABRET_EXIT);
}
return UUCONF_CMDTABRET_EXIT;
}