143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/* hsnams.c
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Get all known system names from the HDB configuration files.
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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_hsnams_rcsid[] = "$Id: hsnams.c,v 1.1 1993/08/04 19:34:26 jtc Exp $";
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#endif
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#include <errno.h>
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#include <ctype.h>
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/* Get all the system names from the HDB Systems file. We have to
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read the Permissions file in order to support aliases. */
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int
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uuconf_hdb_system_names (pglobal, ppzsystems, falias)
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pointer pglobal;
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char ***ppzsystems;
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int falias;
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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 *zline;
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size_t cline;
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char **pz;
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*ppzsystems = NULL;
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iret = UUCONF_SUCCESS;
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zline = NULL;
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cline = 0;
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for (pz = qglobal->qprocess->pzhdb_systems; *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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qglobal->ilineno = 0;
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while (_uuconf_getline (qglobal, &zline, &cline, e) > 0)
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{
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++qglobal->ilineno;
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/* Lines beginning with whitespace are treated as comments.
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No system name can contain a '#', which is another
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comment character, so eliminating the first '#' does no
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harm and catches comments. */
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zline[strcspn (zline, " \t#\n")] = '\0';
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if (*zline == '\0')
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continue;
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iret = _uuconf_iadd_string (qglobal, zline, TRUE, TRUE,
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ppzsystems, (pointer) NULL);
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if (iret != UUCONF_SUCCESS)
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{
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iret |= UUCONF_ERROR_LINENO;
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break;
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}
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}
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(void) fclose (e);
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}
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if (zline != NULL)
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free ((pointer) zline);
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if (iret != UUCONF_SUCCESS)
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{
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qglobal->zfilename = *pz;
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return iret | UUCONF_ERROR_FILENAME;
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}
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/* If we are supposed to return aliases, we must read the
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Permissions file. */
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if (falias)
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{
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struct shpermissions *q;
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if (! qglobal->qprocess->fhdb_read_permissions)
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{
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iret = _uuconf_ihread_permissions (qglobal);
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if (iret != UUCONF_SUCCESS)
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return iret;
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}
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for (q = qglobal->qprocess->qhdb_permissions;
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q != NULL;
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q = q->qnext)
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{
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pz = q->pzalias;
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if (pz == NULL || pz == (char **) &_uuconf_unset)
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continue;
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for (; *pz != NULL; pz++)
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{
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iret = _uuconf_iadd_string (qglobal, *pz, TRUE, TRUE,
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ppzsystems, (pointer) NULL);
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if (iret != UUCONF_SUCCESS)
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return iret;
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}
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}
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}
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if (*ppzsystems == NULL)
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iret = _uuconf_iadd_string (qglobal, (char *) NULL, FALSE, FALSE,
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ppzsystems, (pointer) NULL);
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return iret;
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}
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