80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
/*
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** OLDBIND.COMPAT.C
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**
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** Very old systems do not have res_query(), res_querydomain() or
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** res_search(), so emulate them here.
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**
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** You really ought to be upgrading to a newer version of BIND
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** (4.8.2 or later) rather than be using this.
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**
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** J.R. Oldroyd <jr@inset.com>
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*/
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <resolv.h>
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typedef union
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{
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HEADER qb1;
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char qb2[PACKETSZ];
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} querybuf;
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res_query(dname, class, type, data, datalen)
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char * dname;
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int class;
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int type;
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char * data;
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int datalen;
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{
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int n;
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querybuf buf;
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n = res_mkquery(QUERY, dname, class, type, (char *) NULL, 0,
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NULL, (char *) &buf, sizeof buf);
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n = res_send((char *)&buf, n, data, datalen);
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return n;
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}
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res_querydomain(host, dname, class, type, data, datalen)
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char * host;
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char * dname;
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int class;
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int type;
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char * data;
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int datalen;
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{
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int n;
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querybuf buf;
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char dbuf[256];
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strcpy(dbuf, host);
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if (dbuf[strlen(dbuf)-1] != '.')
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strcat(dbuf, ".");
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strcat(dbuf, dname);
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n = res_mkquery(QUERY, dbuf, class, type, (char *) NULL, 0,
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NULL, (char *)&buf, sizeof buf);
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n = res_send((char *) &buf, n, data, datalen);
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return n;
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}
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res_search(dname, class, type, data, datalen)
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char * dname;
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int class;
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int type;
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char * data;
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int datalen;
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{
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int n;
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querybuf buf;
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n = res_mkquery(QUERY, dname, class, type, (char *)NULL, 0,
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NULL, (char *) &buf, sizeof buf);
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n = res_send((char *) &buf, n, data, datalen);
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return n;
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}
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