tools/adflib: build only host variant which is used by Sam440 target
[AROS.git] / workbench / network / stacks / AROSTCP / dhcp / minires / res_sendsigned.c
blob2404542147425437a5c9eeec93f4ae78f4624bb2
1 /*
2 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (c) 1995-2003 by Internet Software Consortium
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
15 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 * Internet Systems Consortium, Inc.
18 * 950 Charter Street
19 * Redwood City, CA 94063
20 * <info@isc.org>
21 * http://www.isc.org/
24 #include <sys/types.h>
25 #include <sys/param.h>
27 #include <netinet/in.h>
28 #include <arpa/inet.h>
29 #include <sys/socket.h>
31 #include <errno.h>
32 #include <netdb.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
38 #include "minires/minires.h"
39 #include "arpa/nameser.h"
41 #include <isc-dhcp/dst.h>
43 /* res_nsendsigned */
44 isc_result_t
45 res_nsendsigned(res_state statp,
46 double *msg, unsigned msglen, ns_tsig_key *key,
47 double *answer, unsigned anslen, unsigned *anssize)
49 res_state nstatp;
50 DST_KEY *dstkey;
51 int usingTCP = 0;
52 double *newmsg;
53 unsigned newmsglen;
54 unsigned bufsize, siglen;
55 u_char sig[64];
56 HEADER *hp;
57 time_t tsig_time;
58 unsigned ret;
59 isc_result_t rcode;
61 dst_init();
63 nstatp = (res_state) malloc(sizeof(*statp));
64 if (nstatp == NULL)
65 return ISC_R_NOMEMORY;
66 memcpy(nstatp, statp, sizeof(*statp));
68 bufsize = msglen + 1024;
69 newmsg = (double *) malloc(bufsize);
70 if (newmsg == NULL)
71 return ISC_R_NOMEMORY;
72 memcpy(newmsg, msg, msglen);
73 newmsglen = msglen;
75 if (ns_samename(key->alg, NS_TSIG_ALG_HMAC_MD5) != 1)
76 dstkey = NULL;
77 else
78 dstkey = dst_buffer_to_key(key->name, KEY_HMAC_MD5,
79 NS_KEY_TYPE_AUTH_ONLY,
80 NS_KEY_PROT_ANY,
81 key->data, key->len);
82 if (dstkey == NULL) {
83 free(nstatp);
84 free(newmsg);
85 return ISC_R_BADKEY;
88 nstatp->nscount = 1;
89 siglen = sizeof(sig);
90 rcode = ns_sign((u_char *)newmsg, &newmsglen, bufsize,
91 NOERROR, dstkey, NULL, 0,
92 sig, &siglen, 0);
93 if (rcode != ISC_R_SUCCESS) {
94 free (nstatp);
95 free (newmsg);
96 return rcode;
99 if (newmsglen > PACKETSZ || (nstatp->options & RES_IGNTC))
100 usingTCP = 1;
101 if (usingTCP == 0)
102 nstatp->options |= RES_IGNTC;
103 else
104 nstatp->options |= RES_USEVC;
106 retry:
108 rcode = res_nsend(nstatp, newmsg, newmsglen, answer, anslen, &ret);
109 if (rcode != ISC_R_SUCCESS) {
110 free (nstatp);
111 free (newmsg);
112 return rcode;
115 anslen = ret;
116 rcode = ns_verify((u_char *)answer, &anslen, dstkey, sig, siglen,
117 NULL, NULL, &tsig_time,
118 (nstatp->options & RES_KEEPTSIG) ? 1 : 0);
119 if (rcode != ISC_R_SUCCESS) {
120 Dprint(nstatp->pfcode & RES_PRF_REPLY,
121 (stdout, ";; TSIG invalid (%s)\n", p_rcode(ret)));
122 free (nstatp);
123 free (newmsg);
124 return rcode;
126 Dprint(nstatp->pfcode & RES_PRF_REPLY, (stdout, ";; TSIG ok\n"));
128 hp = (HEADER *) answer;
129 if (hp->tc && usingTCP == 0) {
130 nstatp->options &= ~RES_IGNTC;
131 usingTCP = 1;
132 goto retry;
135 free (nstatp);
136 free (newmsg);
137 *anssize = anslen;
138 return ISC_R_SUCCESS;