projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 5f522de8 C |
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 | } |