projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 224c7076 A |
1 | /* |
| 2 | * Copyright (c) 1996, 1998 by Internet Software Consortium. | |
| 3 | * | |
| 4 | * Permission to use, copy, modify, and distribute this software for any | |
| 5 | * purpose with or without fee is hereby granted, provided that the above | |
| 6 | * copyright notice and this permission notice appear in all copies. | |
| 7 | * | |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS | |
| 9 | * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES | |
| 10 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE | |
| 11 | * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL | |
| 12 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR | |
| 13 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS | |
| 14 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
| 15 | * SOFTWARE. | |
| 16 | */ | |
| 17 | ||
| 18 | #include <sys/cdefs.h> | |
| 19 | __FBSDID("$FreeBSD: src/lib/libc/net/nsap_addr.c,v 1.9 2002/03/22 21:52:29 obrien Exp $"); | |
| 20 | ||
| 21 | #include "xlocale_private.h" | |
| 22 | ||
| 23 | #include <sys/types.h> | |
| 24 | #include <sys/param.h> | |
| 25 | #include <sys/socket.h> | |
| 26 | #include <netinet/in.h> | |
| 27 | #include <arpa/inet.h> | |
| 28 | #include <arpa/nameser.h> | |
| 29 | #include <ctype.h> | |
| 30 | #include <resolv.h> | |
| 31 | #include <stdlib.h> | |
| 32 | ||
| 33 | static char | |
| 34 | xtob(c) | |
| 35 | int c; | |
| 36 | { | |
| 37 | return (c - (((c >= '0') && (c <= '9')) ? '0' : '7')); | |
| 38 | } | |
| 39 | ||
| 40 | u_int | |
| 41 | inet_nsap_addr(ascii, binary, maxlen) | |
| 42 | const char *ascii; | |
| 43 | u_char *binary; | |
| 44 | int maxlen; | |
| 45 | { | |
| 46 | u_char c, nib; | |
| 47 | u_int len = 0; | |
| 48 | locale_t loc = __current_locale(); | |
| 49 | ||
| 50 | while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { | |
| 51 | if (c == '.' || c == '+' || c == '/') | |
| 52 | continue; | |
| 53 | if (!isascii(c)) | |
| 54 | return (0); | |
| 55 | if (islower_l(c, loc)) | |
| 56 | c = toupper_l(c, loc); | |
| 57 | if (isxdigit_l(c, loc)) { | |
| 58 | nib = xtob(c); | |
| 59 | c = *ascii++; | |
| 60 | if (c != '\0') { | |
| 61 | c = toupper_l(c, loc); | |
| 62 | if (isxdigit_l(c, loc)) { | |
| 63 | *binary++ = (nib << 4) | xtob(c); | |
| 64 | len++; | |
| 65 | } else | |
| 66 | return (0); | |
| 67 | } | |
| 68 | else | |
| 69 | return (0); | |
| 70 | } | |
| 71 | else | |
| 72 | return (0); | |
| 73 | } | |
| 74 | return (len); | |
| 75 | } | |
| 76 | ||
| 77 | char * | |
| 78 | inet_nsap_ntoa(binlen, binary, ascii) | |
| 79 | int binlen; | |
| 80 | const u_char *binary; | |
| 81 | char *ascii; | |
| 82 | { | |
| 83 | int nib; | |
| 84 | int i; | |
| 85 | static char *tmpbuf = NULL; | |
| 86 | char *start; | |
| 87 | ||
| 88 | if (tmpbuf == NULL) { | |
| 89 | tmpbuf = malloc(255*3); | |
| 90 | if (tmpbuf == NULL) | |
| 91 | return NULL; | |
| 92 | } | |
| 93 | if (ascii) | |
| 94 | start = ascii; | |
| 95 | else { | |
| 96 | ascii = tmpbuf; | |
| 97 | start = tmpbuf; | |
| 98 | } | |
| 99 | ||
| 100 | if (binlen > 255) | |
| 101 | binlen = 255; | |
| 102 | ||
| 103 | for (i = 0; i < binlen; i++) { | |
| 104 | nib = *binary >> 4; | |
| 105 | *ascii++ = nib + (nib < 10 ? '0' : '7'); | |
| 106 | nib = *binary++ & 0x0f; | |
| 107 | *ascii++ = nib + (nib < 10 ? '0' : '7'); | |
| 108 | if (((i % 2) == 0 && (i + 1) < binlen)) | |
| 109 | *ascii++ = '.'; | |
| 110 | } | |
| 111 | *ascii = '\0'; | |
| 112 | return (start); | |
| 113 | } | |
| 114 | ||
| 115 | /* | |
| 116 | * Weak aliases for applications that use certain private entry points, | |
| 117 | * and fail to include <arpa/inet.h>. | |
| 118 | */ | |
| 119 | #undef inet_nsap_addr | |
| 120 | __weak_reference(__inet_nsap_addr, inet_nsap_addr); | |
| 121 | #undef inet_nsap_ntoa | |
| 122 | __weak_reference(__inet_nsap_ntoa, inet_nsap_ntoa); |