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Diffstat (limited to 'src/libfreeswan/rangetosubnet.c')
-rw-r--r--src/libfreeswan/rangetosubnet.c224
1 files changed, 0 insertions, 224 deletions
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 <http://www.fsf.org/copyleft/lgpl.txt>.
- *
- * 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 <stdio.h>
-
-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 */
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