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