NetBSD/gnu/libexec/uucp/parse.c

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1993-03-21 12:45:37 +03:00
/* parse.c
Parse a UUCP command string.
Copyright (C) 1991, 1992 Ian Lance Taylor
This file is part of the Taylor UUCP package.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; 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 AIRS, P.O. Box 520, Waltham, MA 02254.
$Log: parse.c,v $
Revision 1.1.1.1 1993/03/21 09:45:37 cgd
initial import of 386bsd-0.1 sources
Revision 1.3 1992/02/08 03:54:18 ian
Include <string.h> only in <uucp.h>, added 1992 copyright
Revision 1.2 1991/11/11 02:10:39 ian
Forget to set pseq field to NULL
Revision 1.1 1991/09/10 19:40:31 ian
Initial revision
*/
#include "uucp.h"
#if USE_RCS_ID
char parse_rcsid[] = "$Id: parse.c,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $";
#endif
/* Parse a UUCP command string into an scmd structure. This is called
by the 'g' protocol and the UNIX command file reading routines. It
destroys the string it is passed, and the scmd string pointers are
left pointing into it. It returns TRUE if the string is
successfully parsed, FALSE otherwise. */
boolean
fparse_cmd (zcmd, qcmd)
char *zcmd;
struct scmd *qcmd;
{
char *z;
z = strtok (zcmd, " \t\n");
if (z == NULL)
return FALSE;
qcmd->bcmd = *z;
if (qcmd->bcmd != 'S'
&& qcmd->bcmd != 'R'
&& qcmd->bcmd != 'X'
&& qcmd->bcmd != 'H')
return FALSE;
qcmd->pseq = NULL;
/* Handle hangup commands specially. If it's just "H", return
the command 'H' to indicate a hangup request. If it's "HY"
return 'Y' and if it's "HN" return 'N'. */
if (qcmd->bcmd == 'H')
{
if (z[1] == '\0')
return TRUE;
else if (z[1] == 'Y')
{
qcmd->bcmd = 'Y';
return TRUE;
}
else if (z[1] == 'N')
{
qcmd->bcmd = 'N';
return TRUE;
}
else
return FALSE;
}
if (z[1] != '\0')
return FALSE;
z = strtok ((char *) NULL, " \t\n");
if (z == NULL)
return FALSE;
qcmd->zfrom = z;
z = strtok ((char *) NULL, " \t\n");
if (z == NULL)
return FALSE;
qcmd->zto = z;
z = strtok ((char *) NULL, " \t\n");
if (z == NULL)
return FALSE;
qcmd->zuser = z;
z = strtok ((char *) NULL, " \t\n");
if (z == NULL || *z != '-')
return FALSE;
qcmd->zoptions = z + 1;
z = strtok ((char *) NULL, " \t\n");
if (z != NULL)
qcmd->ztemp = z;
else if (qcmd->bcmd == 'S')
return FALSE;
else
qcmd->ztemp = "";
z = strtok ((char *) NULL, " \t\n");
if (z != NULL)
{
char *zend;
qcmd->imode = (int) strtol (z, &zend, 8);
if (*zend != '\0')
return FALSE;
}
else if (qcmd->bcmd == 'S')
return FALSE;
else
qcmd->imode = 0666;
z = strtok ((char *) NULL, " \t\n");
if (z != NULL)
qcmd->znotify = z;
else
qcmd->znotify = "";
/* If the notify string is "", there may be a number of bytes. */
qcmd->cbytes = -1;
if (strcmp (qcmd->znotify, "\"\"") == 0)
{
z = strtok ((char *) NULL, " \t\n");
if (z != NULL)
{
char *zend;
qcmd->znotify = "";
qcmd->cbytes = strtol (z, &zend, 10);
if (*zend != '\0')
return FALSE;
}
}
return TRUE;
}