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deb-mbse/lib/msgflags.c

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/*****************************************************************************
*
* $Id$
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* Purpose ...............: MBSE BBS Mail Gate
*
*****************************************************************************
* Copyright (C) 1997-2001
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS 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, or (at your option) any
* later version.
*
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
#include "libs.h"
#include "structs.h"
#include "clcomm.h"
#include "common.h"
static char *flnm[] = {
(char *)"PVT",(char *)"CRS",(char *)"RCV",(char *)"SNT",
(char *)"ATT",(char *)"TRN",(char *)"ORP",(char *)"K/S",
(char *)"LOC",(char *)"HLD",(char *)"RSV",(char *)"FRQ",
(char *)"RRQ",(char *)"RRC",(char *)"ARQ",(char *)"FUP"
};
int flagset(char *s)
{
char *buf,*p;
int i;
int fl=0;
Syslog('M', "setting flags from string \"%s\"",MBSE_SS(s));
buf=xstrcpy(s);
for (p=strtok(buf," ,\t\n"); p; p=strtok(NULL," ,\t\n")) {
for (i=0;i<16;i++)
if (!strcasecmp(p,flnm[i])) {
Syslog('M', "setting flag bit %d for \"%s\"", i,MBSE_SS(p));
fl |= (1 << i);
}
}
free(buf);
Syslog('M', "set flags 0x%04x",fl);
return fl;
}
char *compose_flags(int flags, char *fkludge)
{
int i;
char *buf = NULL, *p;
if ((fkludge == NULL) && (!flags))
return buf;
Syslog('M', "composing flag string from binary 0x%04x and string \"%s\"", flags,MBSE_SS(fkludge));
if (fkludge) {
if (!isspace(fkludge[0]))
buf=xstrcpy((char *)" ");
buf=xstrcat(buf,fkludge);
p=buf+strlen(buf)-1;
while (isspace(*p))
*p--='\0';
}
for (i = 0; i < 16; i++)
if ((flags & (1 << i)) && (!flag_on(flnm[i],buf))) {
buf=xstrcat(buf,(char *)" ");
buf=xstrcat(buf,flnm[i]);
Syslog('m', "adding \"%s\"",flnm[i]);
}
Syslog('M', "resulting string is \"%s\"",buf);
return buf;
}
char *strip_flags(char *flags)
{
char *p,*q=NULL,*tok;
int canonic,i;
if (flags == NULL)
return NULL;
Syslog('M', "stripping official flags from \"%s\"",MBSE_SS(flags));
p=xstrcpy(flags);
for (tok=strtok(flags,", \t\n");tok;tok=strtok(NULL,", \t\n")) {
canonic=0;
for (i=0;i<16;i++)
if (strcasecmp(tok,flnm[i]) == 0)
canonic=1;
if (!canonic) {
q=xstrcat(q,(char *)" ");
q=xstrcat(q,tok);
}
}
free(p);
Syslog('M', "stripped string is \"%s\"",q);
return q;
}
int flag_on(char *flag, char *flags)
{
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char *p, *tok;
int up = FALSE;
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if (flags == NULL)
return FALSE;
Syslog('m', "checking flag \"%s\" in string \"%s\"", MBSE_SS(flag), MBSE_SS(flags));
p = xstrcpy(flags);
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for (tok = strtok(p, ", \t\n"); tok; tok = strtok(NULL, ", \t\n")) {
if (strcasecmp(flag, tok) == 0)
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up = TRUE;
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}
free(p);
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Syslog('m', "flag%s present", up ? "":" not");
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return up;
}