diff options
Diffstat (limited to 'contrib/bind/lib/inet/inet_cidr_pton.c')
| -rw-r--r-- | contrib/bind/lib/inet/inet_cidr_pton.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/contrib/bind/lib/inet/inet_cidr_pton.c b/contrib/bind/lib/inet/inet_cidr_pton.c deleted file mode 100644 index 4fae2c68fed0e..0000000000000 --- a/contrib/bind/lib/inet/inet_cidr_pton.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright (c) 1998,1999 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$Id: inet_cidr_pton.c,v 8.3 1999/01/08 19:23:41 vixie Exp $"; -#endif - -#include "port_before.h" - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <isc/assertions.h> -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#include "port_after.h" - -#ifdef SPRINTF_CHAR -# define SPRINTF(x) strlen(sprintf/**/x) -#else -# define SPRINTF(x) ((size_t)sprintf x) -#endif - -static int inet_cidr_pton_ipv4 __P((const char *src, u_char *dst, - int *bits)); - -/* - * int - * inet_cidr_pton(af, src, dst, *bits) - * convert network address from presentation to network format. - * accepts inet_pton()'s input for this "af" plus trailing "/CIDR". - * "dst" is assumed large enough for its "af". "bits" is set to the - * /CIDR prefix length, which can have defaults (like /32 for IPv4). - * return: - * -1 if an error occurred (inspect errno; ENOENT means bad format). - * 0 if successful conversion occurred. - * note: - * 192.5.5.1/28 has a nonzero host part, which means it isn't a network - * as called for by inet_net_pton() but it can be a host address with - * an included netmask. - * author: - * Paul Vixie (ISC), October 1998 - */ -int -inet_cidr_pton(int af, const char *src, void *dst, int *bits) { - switch (af) { - case AF_INET: - return (inet_cidr_pton_ipv4(src, dst, bits)); - default: - errno = EAFNOSUPPORT; - return (-1); - } -} - -static int -inet_cidr_pton_ipv4(const char *src, u_char *dst, int *pbits) { - static const char digits[] = "0123456789"; - const u_char *odst = dst; - int n, ch, tmp, bits; - size_t size = 4; - - /* Get the mantissa. */ - while (ch = *src++, (isascii(ch) && isdigit(ch))) { - tmp = 0; - do { - n = strchr(digits, ch) - digits; - INSIST(n >= 0 && n <= 9); - tmp *= 10; - tmp += n; - if (tmp > 255) - goto enoent; - } while ((ch = *src++) != '\0' && isascii(ch) && isdigit(ch)); - if (size-- == 0) - goto emsgsize; - *dst++ = (u_char) tmp; - if (ch == '\0' || ch == '/') - break; - if (ch != '.') - goto enoent; - } - - /* Get the prefix length if any. */ - bits = -1; - if (ch == '/' && isascii(src[0]) && isdigit(src[0]) && dst > odst) { - /* CIDR width specifier. Nothing can follow it. */ - ch = *src++; /* Skip over the /. */ - bits = 0; - do { - n = strchr(digits, ch) - digits; - INSIST(n >= 0 && n <= 9); - bits *= 10; - bits += n; - } while ((ch = *src++) != '\0' && isascii(ch) && isdigit(ch)); - if (ch != '\0') - goto enoent; - if (bits > 32) - goto emsgsize; - } - - /* Firey death and destruction unless we prefetched EOS. */ - if (ch != '\0') - goto enoent; - - /* Prefix length can default to /32 only if all four octets spec'd. */ - if (bits == -1) - if (dst - odst == 4) - bits = 32; - else - goto enoent; - - /* If nothing was written to the destination, we found no address. */ - if (dst == odst) - goto enoent; - - /* If prefix length overspecifies mantissa, life is bad. */ - if ((bits / 8) > (dst - odst)) - goto enoent; - - /* Extend address to four octets. */ - while (size-- > 0) - *dst++ = 0; - - *pbits = bits; - return (0); - - enoent: - errno = ENOENT; - return (-1); - - emsgsize: - errno = EMSGSIZE; - return (-1); -} |