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Diffstat (limited to 'REORG.TODO/inet/inet_net.c')
| -rw-r--r-- | REORG.TODO/inet/inet_net.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/REORG.TODO/inet/inet_net.c b/REORG.TODO/inet/inet_net.c new file mode 100644 index 0000000000..434d716854 --- /dev/null +++ b/REORG.TODO/inet/inet_net.c @@ -0,0 +1,109 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* Copyright (C) 2013-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sys/types.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <ctype.h> + +/* + * Internet network address interpretation routine. + * The library routines call this routine to interpret + * network numbers. + */ +u_int32_t +inet_network (const char *cp) +{ + u_int32_t val, base, n, i; + char c; + u_int32_t parts[4], *pp = parts; + int digit; + +again: + val = 0; base = 10; digit = 0; + if (*cp == '0') + digit = 1, base = 8, cp++; + if (*cp == 'x' || *cp == 'X') + digit = 0, base = 16, cp++; + while ((c = *cp) != 0) { + if (isdigit(c)) { + if (base == 8 && (c == '8' || c == '9')) + return (INADDR_NONE); + val = (val * base) + (c - '0'); + cp++; + digit = 1; + continue; + } + if (base == 16 && isxdigit(c)) { + val = (val << 4) + (tolower (c) + 10 - 'a'); + cp++; + digit = 1; + continue; + } + break; + } + if (!digit) + return (INADDR_NONE); + if (pp >= parts + 4 || val > 0xff) + return (INADDR_NONE); + if (*cp == '.') { + *pp++ = val, cp++; + goto again; + } + while (isspace(*cp)) + cp++; + if (*cp) + return (INADDR_NONE); + if (pp >= parts + 4 || val > 0xff) + return (INADDR_NONE); + *pp++ = val; + n = pp - parts; + for (val = 0, i = 0; i < n; i++) { + val <<= 8; + val |= parts[i] & 0xff; + } + return (val); +} |