projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 8b0cde34 KS |
1 | /* |
| 2 | * Copyright (c) 1986 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 2ce81398 | 8 | #if defined(LIBC_SCCS) && !defined(lint) |
| 95f51977 | 9 | static char sccsid[] = "@(#)ns_ntoa.c 6.3 (Berkeley) 3/9/86"; |
| 2ce81398 | 10 | #endif LIBC_SCCS and not lint |
| 8b0cde34 KS |
11 | |
| 12 | #include <sys/types.h> | |
| 13 | #include <netns/ns.h> | |
| 14 | ||
| 15 | char * | |
| 16 | ns_ntoa(addr) | |
| 17 | struct ns_addr addr; | |
| 18 | { | |
| 19 | static char obuf[40]; | |
| 20 | char *spectHex(); | |
| 489628ab | 21 | union { union ns_net net_e; u_long long_e; } net; |
| 8b0cde34 KS |
22 | u_short port = htons(addr.x_port); |
| 23 | register char *cp; | |
| 24 | char *cp2; | |
| 25 | register u_char *up = addr.x_host.c_host; | |
| 26 | u_char *uplim = up + 6; | |
| 27 | ||
| 489628ab KS |
28 | net.net_e = addr.x_net; |
| 29 | sprintf(obuf, "%lx", ntohl(net.long_e)); | |
| 8b0cde34 KS |
30 | cp = spectHex(obuf); |
| 31 | cp2 = cp + 1; | |
| 32 | while (*up==0 && up < uplim) up++; | |
| 489628ab KS |
33 | if (up == uplim) { |
| 34 | if (port) { | |
| 35 | sprintf(cp, ".0"); | |
| 36 | cp += 2; | |
| 37 | } | |
| 38 | } else { | |
| 39 | sprintf(cp, ".%x", *up++); | |
| 40 | while (up < uplim) { | |
| 41 | while (*cp) cp++; | |
| 42 | sprintf(cp, "%02x", *up++); | |
| 43 | } | |
| 44 | cp = spectHex(cp2); | |
| 8b0cde34 | 45 | } |
| 8b0cde34 KS |
46 | if (port) { |
| 47 | sprintf(cp, ".%x", port); | |
| 48 | spectHex(cp + 1); | |
| 49 | } | |
| 50 | return (obuf); | |
| 51 | } | |
| 52 | ||
| 53 | static char * | |
| 54 | spectHex(p0) | |
| 55 | char *p0; | |
| 56 | { | |
| 57 | int ok = 0; | |
| 58 | int nonzero = 0; | |
| 59 | register char *p = p0; | |
| 60 | for (; *p; p++) switch (*p) { | |
| 61 | ||
| 62 | case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': | |
| 63 | *p += ('A' - 'a'); | |
| 64 | /* fall into . . . */ | |
| 65 | case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': | |
| 66 | ok = 1; | |
| 67 | case '1': case '2': case '3': case '4': case '5': | |
| 68 | case '6': case '7': case '8': case '9': | |
| 69 | nonzero = 1; | |
| 70 | } | |
| 71 | if (nonzero && !ok) { *p++ = 'H'; *p = 0; } | |
| 72 | return (p); | |
| 73 | } |