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- /* tdial.c
- Find a dialer in the Taylor UUCP configuration files.
-
- 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- The author of the program may be contacted at ian@airs.com or
- c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144.
- */
-
- #include "uucnfi.h"
-
- #if USE_RCS_ID
- const char _uuconf_tdial_rcsid[] = "$Id: tdial.c,v 1.6 1995/06/21 19:24:26 ian Rel $";
- #endif
-
- #include <errno.h>
-
- static int iddialer P((pointer pglobal, int argc, char **argv, pointer pvar,
- pointer pinfo));
- static int idunknown P((pointer pglobal, int argc, char **argv, pointer pvar,
- pointer pinfo));
-
- /* Find a dialer in the Taylor UUCP configuration files by name. */
-
- int
- uuconf_taylor_dialer_info (pglobal, zname, qdialer)
- pointer pglobal;
- const char *zname;
- struct uuconf_dialer *qdialer;
- {
- struct sglobal *qglobal = (struct sglobal *) pglobal;
- FILE *e;
- pointer pblock;
- int iret;
- char **pz;
-
- e = NULL;
- pblock = NULL;
- iret = UUCONF_NOT_FOUND;
-
- for (pz = qglobal->qprocess->pzdialfiles; *pz != NULL; pz++)
- {
- struct uuconf_cmdtab as[2];
- char *zdialer;
- struct uuconf_dialer sdefault;
- int ilineno;
-
- e = fopen (*pz, "r");
- if (e == NULL)
- {
- if (FNO_SUCH_FILE ())
- continue;
- qglobal->ierrno = errno;
- iret = UUCONF_FOPEN_FAILED | UUCONF_ERROR_ERRNO;
- break;
- }
-
- qglobal->ilineno = 0;
-
- /* Gather the default information from the top of the file. We
- do this by handling the "dialer" command ourselves and
- passing every other command to _uuconf_idialer_cmd via
- idunknown. The value of zdialer will be an malloc block. */
- as[0].uuconf_zcmd = "dialer";
- as[0].uuconf_itype = UUCONF_CMDTABTYPE_FN | 2;
- as[0].uuconf_pvar = (pointer) &zdialer;
- as[0].uuconf_pifn = iddialer;
-
- as[1].uuconf_zcmd = NULL;
-
- pblock = uuconf_malloc_block ();
- if (pblock == NULL)
- {
- qglobal->ierrno = errno;
- iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
- break;
- }
-
- _uuconf_uclear_dialer (&sdefault);
- sdefault.uuconf_palloc = pblock;
- zdialer = NULL;
- iret = uuconf_cmd_file (pglobal, e, as, (pointer) &sdefault,
- idunknown, UUCONF_CMDTABFLAG_BACKSLASH,
- pblock);
-
- /* Now skip until we find a dialer with a matching name. */
- while (iret == UUCONF_SUCCESS
- && zdialer != NULL
- && strcmp (zname, zdialer) != 0)
- {
- free ((pointer) zdialer);
- zdialer = NULL;
- ilineno = qglobal->ilineno;
- iret = uuconf_cmd_file (pglobal, e, as, (pointer) NULL,
- (uuconf_cmdtabfn) NULL,
- UUCONF_CMDTABFLAG_BACKSLASH,
- pblock);
- qglobal->ilineno += ilineno;
- }
-
- if (iret != UUCONF_SUCCESS)
- {
- if (zdialer != NULL)
- free ((pointer) zdialer);
- break;
- }
-
- if (zdialer != NULL)
- {
- size_t csize;
-
- /* We've found the dialer we're looking for. Read the rest
- of the commands for it. */
- as[0].uuconf_pvar = NULL;
-
- *qdialer = sdefault;
- csize = strlen (zdialer) + 1;
- qdialer->uuconf_zname = uuconf_malloc (pblock, csize);
- if (qdialer->uuconf_zname == NULL)
- {
- qglobal->ierrno = errno;
- free ((pointer) zdialer);
- iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
- break;
- }
- memcpy ((pointer) qdialer->uuconf_zname, (pointer) zdialer,
- csize);
- free ((pointer) zdialer);
-
- ilineno = qglobal->ilineno;
- iret = uuconf_cmd_file (pglobal, e, as, qdialer, idunknown,
- UUCONF_CMDTABFLAG_BACKSLASH, pblock);
- qglobal->ilineno += ilineno;
- break;
- }
-
- (void) fclose (e);
- e = NULL;
- uuconf_free_block (pblock);
- pblock = NULL;
-
- iret = UUCONF_NOT_FOUND;
- }
-
- if (e != NULL)
- (void) fclose (e);
- if (iret != UUCONF_SUCCESS && pblock != NULL)
- uuconf_free_block (pblock);
-
- if (iret != UUCONF_SUCCESS && iret != UUCONF_NOT_FOUND)
- {
- qglobal->zfilename = *pz;
- iret |= UUCONF_ERROR_FILENAME;
- }
-
- return iret;
- }
-
- /* Handle a "dialer" command. This copies the string onto the heap
- and returns the pointer in *pvar, unless pvar is NULL. It returns
- UUCONF_CMDTABRET_EXIT to force _uuconf_icmd_file_internal to stop
- reading and return to the code above, which will then check the
- dialer name just read to see if it matches. */
-
- /*ARGSUSED*/
- static int
- iddialer (pglobal, argc, argv, pvar, pinfo)
- pointer pglobal;
- int argc;
- char **argv;
- pointer pvar;
- pointer pinfo;
- {
- struct sglobal *qglobal = (struct sglobal *) pglobal;
- char **pz = (char **) pvar;
-
- if (pz != NULL)
- {
- size_t csize;
-
- csize = strlen (argv[1]) + 1;
- *pz = malloc (csize);
- if (*pz == NULL)
- {
- qglobal->ierrno = errno;
- return (UUCONF_MALLOC_FAILED
- | UUCONF_ERROR_ERRNO
- | UUCONF_CMDTABRET_EXIT);
- }
- memcpy ((pointer) *pz, (pointer) argv[1], csize);
- }
- return UUCONF_CMDTABRET_EXIT;
- }
-
- /* Handle an unknown command by passing it on to _uuconf_idialer_cmd,
- which will parse it into the dialer structure. */
-
- /*ARGSUSED*/
- static int
- idunknown (pglobal, argc, argv, pvar, pinfo)
- pointer pglobal;
- int argc;
- char **argv;
- pointer pvar;
- pointer pinfo;
- {
- struct sglobal *qglobal = (struct sglobal *) pglobal;
- struct uuconf_dialer *qdialer = (struct uuconf_dialer *) pinfo;
-
- return _uuconf_idialer_cmd (qglobal, argc, argv, qdialer);
- }
-