summaryrefslogtreecommitdiff
path: root/src/libfreeswan/satoa.c
diff options
context:
space:
mode:
authorRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:41:31 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2007-04-12 20:41:31 +0000
commit774a362e87feab25f1be16fbca08269ddc7121a4 (patch)
treecf71f4e7466468ac3edc2127125f333224a9acfb /src/libfreeswan/satoa.c
parentc54a140a445bfe7aa66721f68bb0781f26add91c (diff)
downloadvyos-strongswan-774a362e87feab25f1be16fbca08269ddc7121a4.tar.gz
vyos-strongswan-774a362e87feab25f1be16fbca08269ddc7121a4.zip
Major new upstream release, just ran svn-upgrade for now (and wrote some
debian/changelong entries).
Diffstat (limited to 'src/libfreeswan/satoa.c')
-rw-r--r--src/libfreeswan/satoa.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/libfreeswan/satoa.c b/src/libfreeswan/satoa.c
new file mode 100644
index 000000000..410fb8437
--- /dev/null
+++ b/src/libfreeswan/satoa.c
@@ -0,0 +1,102 @@
+/*
+ * convert from binary form of SA ID to ASCII
+ * Copyright (C) 1998, 1999, 2001 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.
+ *
+ * RCSID $Id: satoa.c,v 1.1 2004/03/15 20:35:26 as Exp $
+ */
+#include "internal.h"
+#include "freeswan.h"
+
+static struct typename {
+ char type;
+ char *name;
+} typenames[] = {
+ { SA_AH, "ah" },
+ { SA_ESP, "esp" },
+ { SA_IPIP, "tun" },
+ { SA_COMP, "comp" },
+ { SA_INT, "int" },
+ { 0, NULL }
+};
+
+/*
+ - satoa - convert SA to ASCII "ah507@1.2.3.4"
+ */
+size_t /* space needed for full conversion */
+satoa(sa, format, dst, dstlen)
+struct sa_id sa;
+int format; /* character */
+char *dst; /* need not be valid if dstlen is 0 */
+size_t dstlen;
+{
+ size_t len = 0; /* 0 means not handled yet */
+ int base;
+ struct typename *tn;
+ char buf[30+ADDRTOA_BUF];
+
+ switch (format) {
+ case 0:
+ base = 16; /* temporarily at least */
+ break;
+ case 'd':
+ base = 10;
+ break;
+ default:
+ return 0;
+ break;
+ }
+
+ for (tn = typenames; tn->name != NULL; tn++)
+ if (sa.proto == tn->type)
+ break;
+ if (tn->name == NULL)
+ return 0;
+
+ if (strcmp(tn->name, PASSTHROUGHTYPE) == 0 &&
+ sa.spi == PASSTHROUGHSPI &&
+ sa.dst.s_addr == PASSTHROUGHDST) {
+ strcpy(buf, PASSTHROUGHNAME);
+ len = strlen(buf);
+ } else if (sa.proto == SA_INT && sa.dst.s_addr == 0) {
+ char *p;
+
+ switch (ntohl(sa.spi)) {
+ case SPI_PASS: p = "%pass"; break;
+ case SPI_DROP: p = "%drop"; break;
+ case SPI_REJECT: p = "%reject"; break;
+ case SPI_HOLD: p = "%hold"; break;
+ case SPI_TRAP: p = "%trap"; break;
+ case SPI_TRAPSUBNET: p = "%trapsubnet"; break;
+ default: p = NULL; break;
+ }
+ if (p != NULL) {
+ strcpy(buf, p);
+ len = strlen(buf);
+ }
+ }
+
+ if (len == 0) {
+ strcpy(buf, tn->name);
+ len = strlen(buf);
+ len += ultoa(ntohl(sa.spi), base, buf+len, sizeof(buf)-len);
+ *(buf+len-1) = '@';
+ len += addrtoa(sa.dst, 0, buf+len, sizeof(buf)-len);
+ }
+
+ if (dst != NULL) {
+ if (len > dstlen)
+ *(buf+dstlen-1) = '\0';
+ strcpy(dst, buf);
+ }
+ return len;
+}