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Annotation of 43BSDTahoe/etc/named/db_reload.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)db_reload.c        4.16 (Berkeley) 6/18/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: #include <sys/types.h>
        !            23: #include <sys/time.h>
        !            24: #include <netinet/in.h>
        !            25: #include <stdio.h>
        !            26: #include <syslog.h>
        !            27: #include <arpa/nameser.h>
        !            28: #include "ns.h"
        !            29: #include "db.h"
        !            30: 
        !            31: extern time_t  resettime;
        !            32: 
        !            33: /*
        !            34:  * Flush and reload data base.
        !            35:  */
        !            36: 
        !            37: db_reload()
        !            38: {
        !            39:        extern char *bootfile;
        !            40: 
        !            41: #ifdef DEBUG
        !            42:        if (debug >= 3)
        !            43:                fprintf(ddt,"reload()\n");
        !            44: #endif
        !            45:        syslog(LOG_NOTICE, "reloading nameserver\n");
        !            46: 
        !            47:        qflush();
        !            48:        sqflush();
        !            49:        fwdtab_free();
        !            50:        if (hashtab != NULL)
        !            51:                db_free(hashtab);
        !            52:        hashtab = NULL;
        !            53:        if (fcachetab != NULL)
        !            54:                db_free(fcachetab);
        !            55:        fcachetab = NULL;
        !            56:        db_inv_free();
        !            57:        fwdtab_free();
        !            58:        ns_init(bootfile);
        !            59:        time(&resettime);
        !            60: }
        !            61: 
        !            62: db_free(htp)
        !            63:        struct hashbuf *htp;
        !            64: {
        !            65:        register struct databuf *dp, *nextdp;
        !            66:        register struct namebuf *np, *nextnp;
        !            67:        struct namebuf **npp, **nppend;
        !            68: 
        !            69:        npp = htp->h_tab;
        !            70:        nppend = npp + htp->h_size;
        !            71:        while (npp < nppend) {
        !            72:            for (np = *npp++; np != NULL; np = nextnp) {
        !            73:                if (np->n_hash != NULL)
        !            74:                        db_free(np->n_hash);
        !            75:                (void) free((char *)np->n_dname);
        !            76:                for (dp = np->n_data; dp != NULL; ) {
        !            77:                        nextdp = dp->d_next;
        !            78:                        (void) free((char *)dp);
        !            79:                        dp = nextdp;
        !            80:                }
        !            81:                nextnp = np->n_next;
        !            82:                free((char *)np);
        !            83:            }
        !            84:        }
        !            85:        (void) free((char *)htp);
        !            86: }
        !            87: 
        !            88: db_inv_free()
        !            89: {
        !            90:        register struct invbuf *ip;
        !            91:        register int i, j;
        !            92: 
        !            93:        for (i = 0; i < INVHASHSZ; i++)
        !            94:                for (ip = invtab[i]; ip != NULL; ip = ip->i_next)
        !            95:                        for (j = 0; j < INVBLKSZ; j++)
        !            96:                                ip->i_dname[j] = NULL;
        !            97: }
        !            98: 
        !            99: fwdtab_free()
        !           100: {
        !           101:        extern  struct fwdinfo *fwdtab;
        !           102:        struct fwdinfo *fp, *nextfp;
        !           103: 
        !           104:        for (fp = fwdtab; fp != NULL; fp = nextfp) {
        !           105:                nextfp = fp->next;
        !           106:                free((char *)fp);
        !           107:        }
        !           108:        fwdtab = NULL;
        !           109: }

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