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48435ab0 WJ |
1 | /* na2norm.c - normalize NSAPaddr */ |
2 | ||
3 | #ifndef lint | |
4 | static char *rcsid = "$Header: /f/osi/compat/RCS/na2norm.c,v 7.3 91/02/22 09:15:36 mrose Interim $"; | |
5 | #endif | |
6 | ||
7 | /* | |
8 | * $Header: /f/osi/compat/RCS/na2norm.c,v 7.3 91/02/22 09:15:36 mrose Interim $ | |
9 | * | |
10 | * | |
11 | * $Log: na2norm.c,v $ | |
12 | * Revision 7.3 91/02/22 09:15:36 mrose | |
13 | * Interim 6.8 | |
14 | * | |
15 | * Revision 7.2 90/08/08 14:03:00 mrose | |
16 | * stuff | |
17 | * | |
18 | * Revision 7.1 90/07/09 14:32:04 mrose | |
19 | * sync | |
20 | * | |
21 | * Revision 7.0 89/11/23 21:23:18 mrose | |
22 | * Release 6.0 | |
23 | * | |
24 | */ | |
25 | ||
26 | /* | |
27 | * NOTICE | |
28 | * | |
29 | * Acquisition, use, and distribution of this module and related | |
30 | * materials are subject to the restrictions of a license agreement. | |
31 | * Consult the Preface in the User's Manual for the full terms of | |
32 | * this agreement. | |
33 | * | |
34 | */ | |
35 | ||
36 | ||
37 | /* LINTLIBRARY */ | |
38 | ||
39 | #include <stdio.h> | |
40 | #include "general.h" | |
41 | #include "manifest.h" | |
42 | #include "isoaddrs.h" | |
43 | #include "internet.h" | |
44 | #include "tailor.h" | |
45 | ||
46 | /* Encoding based on | |
47 | ||
48 | "An interim approach to use of Network Addresses", | |
49 | S.E. Kille, January 16, 1989 | |
50 | ||
51 | */ | |
52 | ||
53 | /* \f */ | |
54 | ||
55 | struct NSAPaddr *na2norm (na) | |
56 | register struct NSAPaddr *na; | |
57 | { | |
58 | int ilen; | |
59 | register char *cp, | |
60 | *dp; | |
61 | char nsap[NASIZE * 2 + 1]; | |
62 | register struct hostent *hp; | |
63 | register struct ts_interim *ts; | |
64 | static struct NSAPaddr nas; | |
65 | register struct NSAPaddr *ca = &nas; | |
66 | ||
67 | if (na -> na_stack == NA_NSAP) { | |
68 | *ca = *na; /* struct copy */ | |
69 | return ca; | |
70 | } | |
71 | ||
72 | bzero ((char *) ca, sizeof *ca); | |
73 | ca -> na_stack = NA_NSAP; | |
74 | ||
75 | for (ts = ts_interim; ts -> ts_name; ts++) | |
76 | if (ts -> ts_subnet == na -> na_community) | |
77 | break; | |
78 | if (!ts -> ts_name) { | |
79 | SLOG (addr_log, LLOG_EXCEPTIONS, NULLCP, | |
80 | ("unable to find community #%d", na -> na_community)); | |
81 | return NULLNA; | |
82 | } | |
83 | ||
84 | cp = nsap; | |
85 | switch (na -> na_stack) { | |
86 | case NA_TCP: | |
87 | if ((hp = gethostbystring (na -> na_domain)) == NULL) { | |
88 | SLOG (addr_log, LLOG_EXCEPTIONS, NULLCP, | |
89 | ("%s: unknown host", na -> na_domain)); | |
90 | return NULLNA; | |
91 | } | |
92 | #define s2a(b) (((int) (b)) & 0xff) | |
93 | (void) sprintf (cp, "%03d%03d%03d%03d", | |
94 | s2a (hp -> h_addr[0]), | |
95 | s2a (hp -> h_addr[1]), | |
96 | s2a (hp -> h_addr[2]), | |
97 | s2a (hp -> h_addr[3])); | |
98 | cp += strlen (cp); | |
99 | #undef s2a | |
100 | ||
101 | if (na -> na_port) { | |
102 | (void) sprintf (cp, "%05d", (int) ntohs (na -> na_port)); | |
103 | cp += strlen (cp); | |
104 | ||
105 | if (na -> na_tset || na -> na_tset != NA_TSET_TCP) { | |
106 | (void) sprintf (cp, "%05d", (int) na -> na_tset); | |
107 | cp += strlen (cp); | |
108 | } | |
109 | } | |
110 | break; | |
111 | ||
112 | case NA_X25: | |
113 | case NA_BRG: | |
114 | if (na -> na_community == SUBNET_INT_X25 | |
115 | && na -> na_cudflen == 0 | |
116 | && na -> na_pidlen == 0 | |
117 | && na -> na_dte[0] != '0') { /* SEK - X121 form */ | |
118 | /* should be more general */ | |
119 | (void) sprintf (nsap, "36%014s", na -> na_dte); | |
120 | ts = NULL; | |
121 | break; | |
122 | } | |
123 | ||
124 | if (ilen = na -> na_pidlen & 0xff) | |
125 | *cp++ = '1', dp = na -> na_pid; | |
126 | else | |
127 | if (ilen = na -> na_cudflen & 0xff) | |
128 | *cp++ = '2', dp = na -> na_cudf; | |
129 | else | |
130 | *cp++ = '0'; | |
131 | if (ilen) { | |
132 | (void) sprintf (cp, "%01d", ilen); | |
133 | cp += strlen (cp); | |
134 | ||
135 | for (; ilen-- > 0; cp += 3) | |
136 | (void) sprintf (cp, "%03d", *dp++ & 0xff); | |
137 | } | |
138 | (void) strcpy (cp, na -> na_dte); | |
139 | break; | |
140 | ||
141 | default: | |
142 | SLOG (addr_log, LLOG_EXCEPTIONS, NULLCP, | |
143 | ("unknown address type 0x%x", na -> na_stack)); | |
144 | return NULLNA; | |
145 | } | |
146 | ||
147 | cp = nsap, dp = ca -> na_address; | |
148 | if (ts) { | |
149 | bcopy (ts -> ts_prefix, dp, ts -> ts_length); | |
150 | dp += ts -> ts_length; | |
151 | } | |
152 | while (*cp) { | |
153 | *dp = (*cp++ - '0') << 4; | |
154 | if (*cp) | |
155 | *dp++ |= (*cp++ - '0') & 0x0f; | |
156 | else | |
157 | *dp++ |= 0x0f; | |
158 | } | |
159 | ca -> na_addrlen = dp - ca -> na_address; | |
160 | ||
161 | return ca; | |
162 | } |