From c1343b3278cdf99533b7902744d15969f9d6fdc1 Mon Sep 17 00:00:00 2001 From: Yves-Alexis Perez Date: Wed, 2 Jan 2013 14:18:20 +0100 Subject: Imported Upstream version 5.0.1 --- src/libfreeswan/rangetosubnet.c | 224 ---------------------------------------- 1 file changed, 224 deletions(-) delete mode 100644 src/libfreeswan/rangetosubnet.c (limited to 'src/libfreeswan/rangetosubnet.c') diff --git a/src/libfreeswan/rangetosubnet.c b/src/libfreeswan/rangetosubnet.c deleted file mode 100644 index 2a989300e..000000000 --- a/src/libfreeswan/rangetosubnet.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * express an address range as a subnet (if possible) - * Copyright (C) 2000 Henry Spencer. - * - * This library is free software; you can redistribute it and/or modify it - * under the terms of the GNU Library General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See . - * - * This 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 Library General Public - * License for more details. - */ -#include "internal.h" -#include "freeswan.h" - -/* - - rangetosubnet - turn an address range into a subnet, if possible - * - * A range which is a valid subnet will have a network part which is the - * same in the from value and the to value, followed by a host part which - * is all 0 in the from value and all 1 in the to value. - */ -err_t -rangetosubnet(from, to, dst) -const ip_address *from; -const ip_address *to; -ip_subnet *dst; -{ - unsigned const char *fp; - unsigned const char *tp; - unsigned fb; - unsigned tb; - unsigned const char *f; - unsigned const char *t; - size_t n; - size_t n2; - int i; - int nnet; - unsigned m; - - if (addrtypeof(from) != addrtypeof(to)) - return "mismatched address types"; - n = addrbytesptr(from, &fp); - if (n == 0) - return "unknown address type"; - n2 = addrbytesptr(to, &tp); - if (n != n2) - return "internal size mismatch in rangetosubnet"; - - f = fp; - t = tp; - nnet = 0; - for (i = n; i > 0 && *f == *t; i--, f++, t++) - nnet += 8; - if (i > 0 && !(*f == 0x00 && *t == 0xff)) { /* mid-byte bdry. */ - fb = *f++; - tb = *t++; - i--; - m = 0x80; - while ((fb&m) == (tb&m)) { - fb &= ~m; - tb |= m; - m >>= 1; - nnet++; - } - if (fb != 0x00 || tb != 0xff) - return "not a valid subnet"; - } - for (; i > 0 && *f == 0x00 && *t == 0xff; i--, f++, t++) - continue; - - if (i != 0) - return "invalid subnet"; - - return initsubnet(from, nnet, 'x', dst); -} - - - -#ifdef RANGETOSUBNET_MAIN - -#include - -void regress(void); - -int -main(int argc, char *argv[]) -{ - ip_address start; - ip_address stop; - ip_subnet sub; - char buf[100]; - const char *oops; - size_t n; - int af; - int i; - - if (argc == 2 && strcmp(argv[1], "-r") == 0) { - regress(); - fprintf(stderr, "regress() returned?!?\n"); - exit(1); - } - - if (argc < 3) { - fprintf(stderr, "Usage: %s [-6] start stop\n", argv[0]); - fprintf(stderr, " or: %s -r\n", argv[0]); - exit(2); - } - - af = AF_INET; - i = 1; - if (strcmp(argv[i], "-6") == 0) { - af = AF_INET6; - i++; - } - - oops = ttoaddr(argv[i], 0, af, &start); - if (oops != NULL) { - fprintf(stderr, "%s: start conversion failed: %s\n", argv[0], oops); - exit(1); - } - oops = ttoaddr(argv[i+1], 0, af, &stop); - if (oops != NULL) { - fprintf(stderr, "%s: stop conversion failed: %s\n", argv[0], oops); - exit(1); - } - oops = rangetosubnet(&start, &stop, &sub); - if (oops != NULL) { - fprintf(stderr, "%s: rangetosubnet failed: %s\n", argv[0], oops); - exit(1); - } - n = subnettot(&sub, 0, buf, sizeof(buf)); - if (n > sizeof(buf)) { - fprintf(stderr, "%s: reverse conversion", argv[0]); - fprintf(stderr, " failed: need %ld bytes, have only %ld\n", - (long)n, (long)sizeof(buf)); - exit(1); - } - printf("%s\n", buf); - - exit(0); -} - -struct rtab { - int family; - char *start; - char *stop; - char *output; /* NULL means error expected */ -} rtab[] = { - {4, "1.2.3.0", "1.2.3.255", "1.2.3.0/24"}, - {4, "1.2.3.0", "1.2.3.7", "1.2.3.0/29"}, - {4, "1.2.3.240", "1.2.3.255", "1.2.3.240/28"}, - {4, "0.0.0.0", "255.255.255.255", "0.0.0.0/0"}, - {4, "1.2.3.4", "1.2.3.4", "1.2.3.4/32"}, - {4, "1.2.3.0", "1.2.3.254", NULL}, - {4, "1.2.3.0", "1.2.3.126", NULL}, - {4, "1.2.3.0", "1.2.3.125", NULL}, - {4, "1.2.0.0", "1.2.255.255", "1.2.0.0/16"}, - {4, "1.2.0.0", "1.2.0.255", "1.2.0.0/24"}, - {4, "1.2.255.0", "1.2.255.255", "1.2.255.0/24"}, - {4, "1.2.255.0", "1.2.254.255", NULL}, - {4, "1.2.255.1", "1.2.255.255", NULL}, - {4, "1.2.0.1", "1.2.255.255", NULL}, - {6, "1:2:3:4:5:6:7:0", "1:2:3:4:5:6:7:ffff", "1:2:3:4:5:6:7:0/112"}, - {6, "1:2:3:4:5:6:7:0", "1:2:3:4:5:6:7:fff", "1:2:3:4:5:6:7:0/116"}, - {6, "1:2:3:4:5:6:7:f0", "1:2:3:4:5:6:7:ff", "1:2:3:4:5:6:7:f0/124"}, - {4, NULL, NULL, NULL}, -}; - -void -regress() -{ - struct rtab *r; - int status = 0; - ip_address start; - ip_address stop; - ip_subnet sub; - char buf[100]; - const char *oops; - size_t n; - int af; - - for (r = rtab; r->start != NULL; r++) { - af = (r->family == 4) ? AF_INET : AF_INET6; - oops = ttoaddr(r->start, 0, af, &start); - if (oops != NULL) { - printf("surprise failure converting `%s'\n", r->start); - exit(1); - } - oops = ttoaddr(r->stop, 0, af, &stop); - if (oops != NULL) { - printf("surprise failure converting `%s'\n", r->stop); - exit(1); - } - oops = rangetosubnet(&start, &stop, &sub); - if (oops != NULL && r->output == NULL) - {} /* okay, error expected */ - else if (oops != NULL) { - printf("`%s'-`%s' rangetosubnet failed: %s\n", - r->start, r->stop, oops); - status = 1; - } else if (r->output == NULL) { - printf("`%s'-`%s' rangetosubnet succeeded unexpectedly\n", - r->start, r->stop); - status = 1; - } else { - n = subnettot(&sub, 0, buf, sizeof(buf)); - if (n > sizeof(buf)) { - printf("`%s'-`%s' subnettot failed: need %ld\n", - r->start, r->stop, (long)n); - status = 1; - } else if (strcmp(r->output, buf) != 0) { - printf("`%s'-`%s' gave `%s', expected `%s'\n", - r->start, r->stop, buf, r->output); - status = 1; - } - } - } - exit(status); -} - -#endif /* RANGETOSUBNET_MAIN */ -- cgit v1.2.3