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Viewing changes to networking/dnsd.c

  • Committer: Denys Vlasenko
  • Date: 2020-12-29 15:53:11 UTC
  • Revision ID: git-v1:77a51a2709de1b646ab493f0bf771d896de6efc2
randomconfig fixes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

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networking/dnsd.c
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 * the first porting of oao' scdns to busybox also.
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 */
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//config:config DNSD
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//config:       bool "dnsd (10 kb)"
 
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//config:       bool "dnsd (9.8 kb)"
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//config:       default y
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//config:       help
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//config:       Small and static DNS server daemon.
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 */
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static int process_packet(struct dns_entry *conf_data,
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                uint32_t conf_ttl,
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                uint8_t *buf,
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                unsigned buflen)
 
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                uint8_t *buf)
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{
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        struct dns_head *head;
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        struct type_and_class *unaligned_type_class;
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                bb_simple_error_msg("response packet, ignored");
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                return 0; /* don't reply */
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        }
 
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        /* QR = 1 "response", RCODE = 4 "Not Implemented" */
 
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        outr_flags = htons(0x8000 | 4);
 
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        err_msg = NULL;
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        /* start of query string */
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        query_string = (void *)(head + 1);
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        /* where to append answer block */
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        answb = (void *)(unaligned_type_class + 1);
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        if (buflen < answb - buf) {
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                bb_simple_error_msg("packet too short");
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                return 0; /* don't reply */
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        }
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        /* QR = 1 "response", RCODE = 4 "Not Implemented" */
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        outr_flags = htons(0x8000 | 4);
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        err_msg = NULL;
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        /* OPCODE != 0 "standard query"? */
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        if ((head->flags & htons(0x7800)) != 0) {
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                err_msg = "opcode != 0";
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                if (OPT_verbose)
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                        bb_simple_info_msg("got UDP packet");
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                buf[r] = '\0'; /* paranoia */
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                r = process_packet(conf_data, conf_ttl, buf, r);
 
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                r = process_packet(conf_data, conf_ttl, buf);
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                if (r <= 0)
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                        continue;
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                send_to_from(udps, buf, r, 0, &from->u.sa, &to->u.sa, lsa->len);