1 files changed, 116 insertions, 0 deletions
diff --git a/snmplib/transports/snmpAliasDomain.c b/snmplib/transports/snmpAliasDomain.c
new file mode 100644
index 0000000..eb50cad
--- /dev/null
+++ b/snmplib/transports/snmpAliasDomain.c
@@ -0,0 +1,116 @@
+#include <net-snmp/net-snmp-config.h>
+
+#include <net-snmp/types.h>
+#include <net-snmp/library/snmpAliasDomain.h>
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <errno.h>
+
+#if HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+#if HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if HAVE_DMALLOC_H
+#include <dmalloc.h>
+#endif
+
+#include <net-snmp/net-snmp-includes.h>
+#include <net-snmp/types.h>
+#include <net-snmp/output_api.h>
+#include <net-snmp/utilities.h>
+#include <net-snmp/config_api.h>
+
+oid netsnmp_snmpALIASDomain[] = { 1,3,6,1,4,1,8072,3,3,7 };
+static netsnmp_tdomain aliasDomain;
+
+/* simple storage mechanism */
+static netsnmp_data_list *alias_memory = NULL;
+
+#ifdef HAVE_DMALLOC_H
+static void free_wrapper(void * p)
+{
+    free(p);
+}
+#else
+#define free_wrapper free
+#endif
+
+/* An alias parser */
+void
+parse_alias_config(const char *token, char *line) {
+    char aliasname[SPRINT_MAX_LEN];
+    char transportdef[SPRINT_MAX_LEN];
+    /* copy the first word (the alias) out and then assume the rest is
+       transport */
+    line = copy_nword(line, aliasname, sizeof(aliasname));
+    line = copy_nword(line, transportdef, sizeof(transportdef));
+    if (line)
+        config_perror("more data than expected");
+    netsnmp_data_list_add_node(&alias_memory,
+                               netsnmp_create_data_list(aliasname,
+                                                        strdup(transportdef),
+                                                        &free_wrapper));
+}
+
+void
+free_alias_config(void) {
+    netsnmp_free_all_list_data(alias_memory);
+    alias_memory = NULL;
+}
+
+/*
+ * Open a ALIAS-based transport for SNMP.  Local is TRUE if addr is the local
+ * address to bind to (i.e. this is a server-type session); otherwise addr is 
+ * the remote address to send things to.  
+ */
+
+netsnmp_transport *
+netsnmp_alias_create_tstring(const char *str, int local,
+			   const char *default_target)
+{
+    const char *aliasdata;
+
+    aliasdata = (const char*)netsnmp_get_list_data(alias_memory, str);
+    if (!aliasdata) {
+        snmp_log(LOG_ERR, "No alias found for %s\n", str);
+        return NULL;
+    }
+
+    return netsnmp_tdomain_transport(aliasdata,local,default_target);
+}
+
+
+
+netsnmp_transport *
+netsnmp_alias_create_ostring(const u_char * o, size_t o_len, int local)
+{
+    fprintf(stderr, "make ostring\n");
+    return NULL;
+}
+
+void
+netsnmp_alias_ctor(void)
+{
+    aliasDomain.name = netsnmp_snmpALIASDomain;
+    aliasDomain.name_length = sizeof(netsnmp_snmpALIASDomain) / sizeof(oid);
+    aliasDomain.prefix = (const char **)calloc(2, sizeof(char *));
+    aliasDomain.prefix[0] = "alias";
+
+    aliasDomain.f_create_from_tstring     = NULL;
+    aliasDomain.f_create_from_tstring_new = netsnmp_alias_create_tstring;
+    aliasDomain.f_create_from_ostring     = netsnmp_alias_create_ostring;
+
+    netsnmp_tdomain_register(&aliasDomain);
+
+    register_config_handler("snmp", "alias", parse_alias_config,
+                            free_alias_config, "NAME TRANSPORT_DEFINITION");
+}