Usenet 1994 January/usenetsourcesnewsgroupsinfomagicjanuary1994.iso/sources/unix/volume23/trn/part13/addng.c

C/C++ Source or Header | 1991-08-22 | 4.6 KB | 196 lines

/* $Header: addng.c,v 4.3.3.3 91/01/16 02:20:43 davison Trn $
 *
 * $Log:    addng.c,v $
 * Revision 4.3.3.3  91/01/16  02:20:43  davison
 * Integrated rn patches 48-54.
 *
 * Revision 4.3.3.2  90/08/20  16:27:06  davison
 * Allow breaking out of ng adding.  Don't add 'X'ed groups.
 *
 * Revision 4.3.3.1  90/06/20  22:35:43  davison
 * Initial Trn Release
 *
 * Revision 4.3.2.6  90/11/22  16:06:35  sob
 * Changes to make pickly C preprocessors happier.
 *
 * Revision 4.3.2.5  90/09/04  23:29:51  sob
 * Added fix for bithof() from bug report by [e-mail]
 *
 * Revision 4.3.2.4  90/03/17  17:11:36  sob
 * Added support for CNEWS active file flags.
 *
 * Revision 4.3.2.3  89/11/08  02:33:28  sob
 * Added include for server.h
 *
 * Revision 4.3.2.2  89/11/08  01:23:49  sob
 * Added GROUP check when SERVER defined.
 *
 * Revision 4.3.2.1  89/11/06  00:34:11  sob
 * Added RRN support from NNTP 1.5
 *
 * Revision 4.3.1.2  85/05/29  09:06:24  lwall
 * New newsgroups without spool directories incorrectly classified as "ancient".
 *
 * Revision 4.3.1.1  85/05/10  11:30:50  lwall
 * Branch for patches.
 *
 * Revision 4.3  85/05/01  11:34:41  lwall
 * Baseline for release with 4.3bsd.
 *
 */

#include "EXTERN.h"
#include "common.h"
#include "rn.h"
#include "ngdata.h"
#include "last.h"
#include "util.h"
#include "intrp.h"
#include "only.h"
#include "rcstuff.h"
#ifdef SERVER
#include "server.h"
#endif
#include "final.h"
#include "INTERN.h"
#include "addng.h"

void
addng_init()
{
    ;
}

#ifdef FINDNEWNG
/* generate a list of new newsgroups from active file */

bool
newlist(munged,checkinlist)
bool munged;                /* are we scanning the whole file? */
bool checkinlist;
{
    char *tmpname;
    register char *s, *status;
    long birthof();

    tmpname = savestr(filexp(RNEWNAME));
    tmpfp = fopen(tmpname,"w");
    if (tmpfp == Nullfp) {
    printf(cantcreate,tmpname) FLUSH;
    return FALSE;
    }
    while (fgets(buf,LBUFLEN,actfp) != Nullch) {
    /* Check if they want to break out of the new newsgroups search */
    if (int_count) {
        int_count = 0;
        fclose(tmpfp);
        UNLINK(tmpname);
        free(tmpname);
        return FALSE;
    }
    if (s = index(buf,' ')) {
        status=s;
        while (isdigit(*status) || isspace(*status)) status++;
        *s++ = '\0';
#ifdef USETHREADS
        if (strnEQ(buf,"to.",3) || *status == 'x' || *status == 'X'
                    || *status == '=')
#else
        if (strnEQ(buf,"to.",3) || *status == 'x' || *status == '=')
#endif
            /* since = groups are refiling to another group, just
           ignore their existence */
        continue;
        if (find_ng(buf) == nextrcline &&
            (checkinlist ?
            (inlist(buf)) :
            (birthof(buf,(ART_NUM)atol(s)) > lasttime)
            )
        ) {
                    /* if not in .newsrc and younger */
                    /* than the last time we checked */
        fprintf(tmpfp,"%s\n",buf);
                    /* then remember said newsgroup */
        }
#ifdef FASTNEW
        else {            /* not really a new group */
        if (!munged) {        /* did we assume not munged? */
            fclose(tmpfp);    /* then go back, knowing that */
            UNLINK(tmpname);
            free(tmpname);
            return TRUE;    /* active file was indeed munged */
        }
        }
#endif
    }
#ifdef DEBUGGING
    else
        printf("Bad active record: %s\n",buf) FLUSH;
#endif
    }

    /* we have successfully generated the list */

    fclose(tmpfp);
    tmpfp = fopen(tmpname,"r");
    UNLINK(tmpname);            /* be nice to the world */
    if (tmpfp == Nullfp) {
    printf(cantopen,tmpname) FLUSH;
    return FALSE;
    }
    while (fgets(buf,LBUFLEN,tmpfp) != Nullch) {
    buf[strlen(buf)-1] = '\0';
    get_ng(buf,TRUE);        /* add newsgroup, maybe */
    }
    fclose(tmpfp);            /* be nice to ourselves */
    free(tmpname);
    return FALSE;            /* do not call us again */
}

/* return creation time of newsgroup */

long
birthof(ngnam,ngsize)
char *ngnam;
ART_NUM ngsize;
{
    char tst[128];
    long time();

#ifdef SERVER
    int x,tot,min,max;
    sprintf(tst,"GROUP %s",ngnam);
    put_server(tst);
    (void) get_server(tst, sizeof(tst));
    if (*tst != CHAR_OK) return(0); /* not a real group */
    (void) sscanf(tst,"%d%d%d%d",&x,&tot,&min,&max);
    if (tot > 0) return(time(Null(long *)));
    else return(0);
#else /* not SERVER */

    sprintf(tst, ngsize ? "%s/%s/1" : "%s/%s" ,spool,getngdir(ngnam));
    if (stat(tst,&filestat) < 0)
    return (ngsize ? 0L : time(Null(long *)));
    /* not there, assume something good */
    else
    return filestat.st_mtime;

#endif
}

bool
scanactive()
{
    NG_NUM oldnext = nextrcline;    /* remember # lines in newsrc */

    fseek(actfp,0L,0);
    newlist(TRUE,TRUE);
    if (nextrcline != oldnext) {    /* did we add any new groups? */
    return TRUE;
    }
    return FALSE;
}

#endif