diff options
Diffstat (limited to 'src/lib/libc/net/inet_net_ntop.c')
| -rw-r--r-- | src/lib/libc/net/inet_net_ntop.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/src/lib/libc/net/inet_net_ntop.c b/src/lib/libc/net/inet_net_ntop.c deleted file mode 100644 index 35ae7909d3..0000000000 --- a/src/lib/libc/net/inet_net_ntop.c +++ /dev/null | |||
| @@ -1,162 +0,0 @@ | |||
| 1 | /* $OpenBSD: inet_net_ntop.c,v 1.7 2012/06/22 19:13:37 gilles Exp $ */ | ||
| 2 | |||
| 3 | /* | ||
| 4 | * Copyright (c) 2012 by Gilles Chehade <gilles@openbsd.org> | ||
| 5 | * Copyright (c) 1996 by Internet Software Consortium. | ||
| 6 | * | ||
| 7 | * Permission to use, copy, modify, and distribute this software for any | ||
| 8 | * purpose with or without fee is hereby granted, provided that the above | ||
| 9 | * copyright notice and this permission notice appear in all copies. | ||
| 10 | * | ||
| 11 | * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS | ||
| 12 | * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES | ||
| 13 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE | ||
| 14 | * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL | ||
| 15 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR | ||
| 16 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS | ||
| 17 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | ||
| 18 | * SOFTWARE. | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <sys/types.h> | ||
| 22 | #include <sys/socket.h> | ||
| 23 | #include <netinet/in.h> | ||
| 24 | #include <arpa/inet.h> | ||
| 25 | |||
| 26 | #include <errno.h> | ||
| 27 | #include <stdio.h> | ||
| 28 | #include <string.h> | ||
| 29 | #include <stdlib.h> | ||
| 30 | |||
| 31 | static char *inet_net_ntop_ipv4(const u_char *, int, char *, size_t); | ||
| 32 | static char *inet_net_ntop_ipv6(const u_char *, int, char *, size_t); | ||
| 33 | |||
| 34 | /* | ||
| 35 | * char * | ||
| 36 | * inet_net_ntop(af, src, bits, dst, size) | ||
| 37 | * convert network number from network to presentation format. | ||
| 38 | * generates CIDR style result always. | ||
| 39 | * return: | ||
| 40 | * pointer to dst, or NULL if an error occurred (check errno). | ||
| 41 | * author: | ||
| 42 | * Paul Vixie (ISC), July 1996 | ||
| 43 | */ | ||
| 44 | char * | ||
| 45 | inet_net_ntop(int af, const void *src, int bits, char *dst, size_t size) | ||
| 46 | { | ||
| 47 | switch (af) { | ||
| 48 | case AF_INET: | ||
| 49 | return (inet_net_ntop_ipv4(src, bits, dst, size)); | ||
| 50 | case AF_INET6: | ||
| 51 | return (inet_net_ntop_ipv6(src, bits, dst, size)); | ||
| 52 | default: | ||
| 53 | errno = EAFNOSUPPORT; | ||
| 54 | return (NULL); | ||
| 55 | } | ||
| 56 | } | ||
| 57 | |||
| 58 | /* | ||
| 59 | * static char * | ||
| 60 | * inet_net_ntop_ipv4(src, bits, dst, size) | ||
| 61 | * convert IPv4 network number from network to presentation format. | ||
| 62 | * generates CIDR style result always. | ||
| 63 | * return: | ||
| 64 | * pointer to dst, or NULL if an error occurred (check errno). | ||
| 65 | * note: | ||
| 66 | * network byte order assumed. this means 192.5.5.240/28 has | ||
| 67 | * 0x11110000 in its fourth octet. | ||
| 68 | * author: | ||
| 69 | * Paul Vixie (ISC), July 1996 | ||
| 70 | */ | ||
| 71 | static char * | ||
| 72 | inet_net_ntop_ipv4(const u_char *src, int bits, char *dst, size_t size) | ||
| 73 | { | ||
| 74 | char *odst = dst; | ||
| 75 | u_int m; | ||
| 76 | int b; | ||
| 77 | char *ep; | ||
| 78 | int advance; | ||
| 79 | |||
| 80 | ep = dst + size; | ||
| 81 | if (ep <= dst) | ||
| 82 | goto emsgsize; | ||
| 83 | |||
| 84 | if (bits < 0 || bits > 32) { | ||
| 85 | errno = EINVAL; | ||
| 86 | return (NULL); | ||
| 87 | } | ||
| 88 | if (bits == 0) { | ||
| 89 | if (ep - dst < sizeof "0") | ||
| 90 | goto emsgsize; | ||
| 91 | *dst++ = '0'; | ||
| 92 | *dst = '\0'; | ||
| 93 | } | ||
| 94 | |||
| 95 | /* Format whole octets. */ | ||
| 96 | for (b = bits / 8; b > 0; b--) { | ||
| 97 | if (ep - dst < sizeof "255.") | ||
| 98 | goto emsgsize; | ||
| 99 | advance = snprintf(dst, ep - dst, "%u", *src++); | ||
| 100 | if (advance <= 0 || advance >= ep - dst) | ||
| 101 | goto emsgsize; | ||
| 102 | dst += advance; | ||
| 103 | if (b > 1) { | ||
| 104 | if (dst + 1 >= ep) | ||
| 105 | goto emsgsize; | ||
| 106 | *dst++ = '.'; | ||
| 107 | *dst = '\0'; | ||
| 108 | } | ||
| 109 | } | ||
| 110 | |||
| 111 | /* Format partial octet. */ | ||
| 112 | b = bits % 8; | ||
| 113 | if (b > 0) { | ||
| 114 | if (ep - dst < sizeof ".255") | ||
| 115 | goto emsgsize; | ||
| 116 | if (dst != odst) | ||
| 117 | if (dst + 1 >= ep) | ||
| 118 | goto emsgsize; | ||
| 119 | *dst++ = '.'; | ||
| 120 | m = ((1 << b) - 1) << (8 - b); | ||
| 121 | advance = snprintf(dst, ep - dst, "%u", *src & m); | ||
| 122 | if (advance <= 0 || advance >= ep - dst) | ||
| 123 | goto emsgsize; | ||
| 124 | dst += advance; | ||
| 125 | } | ||
| 126 | |||
| 127 | /* Format CIDR /width. */ | ||
| 128 | if (ep - dst < sizeof "/32") | ||
| 129 | goto emsgsize; | ||
| 130 | advance = snprintf(dst, ep - dst, "/%u", bits); | ||
| 131 | if (advance <= 0 || advance >= ep - dst) | ||
| 132 | goto emsgsize; | ||
| 133 | dst += advance; | ||
| 134 | return (odst); | ||
| 135 | |||
| 136 | emsgsize: | ||
| 137 | errno = EMSGSIZE; | ||
| 138 | return (NULL); | ||
| 139 | } | ||
| 140 | |||
| 141 | static char * | ||
| 142 | inet_net_ntop_ipv6(const u_char *src, int bits, char *dst, size_t size) | ||
| 143 | { | ||
| 144 | int ret; | ||
| 145 | char buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255:255:255:255/128")]; | ||
| 146 | |||
| 147 | if (bits < 0 || bits > 128) { | ||
| 148 | errno = EINVAL; | ||
| 149 | return (NULL); | ||
| 150 | } | ||
| 151 | |||
| 152 | if (inet_ntop(AF_INET6, src, buf, size) == NULL) | ||
| 153 | return (NULL); | ||
| 154 | |||
| 155 | ret = snprintf(dst, size, "%s/%d", buf, bits); | ||
| 156 | if (ret == -1 || ret >= size) { | ||
| 157 | errno = EMSGSIZE; | ||
| 158 | return (NULL); | ||
| 159 | } | ||
| 160 | |||
| 161 | return (dst); | ||
| 162 | } | ||
