ELAPI Fixed the host name resolution

The issue was that the host IP was recorded twice,
once as a main address and another as IP alias.
It seemed that the IP was returned as name
but the issue turned out to be different.
See https://fedorahosted.org/sssd/ticket/207.

2 files changed, 111 insertions, 13 deletions

diff --git a/common/elapi/elapi_event.c b/common/elapi/elapi_event.c
index a517babdb..e7a5d779e 100644
--- a/common/elapi/elapi_event.c
+++ b/common/elapi/elapi_event.c
@@ -73,6 +73,7 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
     int family;
     int set_hostname = 0;
     int set_ip = 0;
+    int used_this_ip = 0;
 
     TRACE_FLOW_STRING("add_host_identity", "Entry");
 
@@ -99,6 +100,8 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
 
             TRACE_FLOW_STRING("Top of the loop", "");
 
+            used_this_ip = 0;
+
             if (!ifa->ifa_addr) {
                 ifa = ifa->ifa_next;
                 continue;
@@ -136,6 +139,8 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
                                            0,
                                            NI_NUMERICHOST /* Gets address as string */);
 
+                TRACE_INFO_STRING("Resolved host:", host);
+                TRACE_INFO_STRING("Resolved address:", address);
                 /* If we have not set host name set it */
                 if(!set_hostname) {
 
@@ -149,7 +154,7 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
                         hnm = hostname;
                     }
                     else {
-                        /* We we able to get a host name ? */
+                        /* Were we able to get a host name ? */
                         if (gai_ret_host == EOK) {
                             TRACE_INFO_STRING("getnameinfo returned:", host);
                             hnm = host;
@@ -200,6 +205,7 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
                             return error;
                         }
                         set_ip = 1;
+                        used_this_ip = 1;
                     }
                 }
 
@@ -231,13 +237,15 @@ static int add_host_identity(struct collection_item *tpl, unsigned base)
                 }
 
                 /* If we got then main IP and we are told to deal with opther IPs */
-                if ((set_ip) && (base & E_HAVE_HOSTIPS)) {
+                if ((set_ip) && (base & E_HAVE_HOSTIPS) && (!used_this_ip)) {
 
-                    /* Do we have a host meaningful host name? */
+                    TRACE_INFO_STRING("Considering address:", address);
+
+                    /* Do we have a host meaningful IP */
                     if ((gai_ret_addr != EOK) ||
                         ((gai_ret_addr == EOK) &&
                          ((strcasecmp(address, LOCALADDRESS) == 0 ) ||
-                          (strcasecmp(address, LOCALADDRESSV6) == 0 )))) haddr = address;
+                          (strcasecmp(address, LOCALADDRESSV6) == 0 )))) haddr = NULL;
                     else haddr = address;
 
                     if (haddr) {
diff --git a/common/elapi/elapi_test/elapi_ut.c b/common/elapi/elapi_test/elapi_ut.c
index 9097a4383..ba493bbd3 100644
--- a/common/elapi/elapi_test/elapi_ut.c
+++ b/common/elapi/elapi_test/elapi_ut.c
@@ -397,7 +397,7 @@ int complex_event_test(void)
                           E_MESSAGE,
                           "date = %(R_stamp__), pid = %(__pid__), "
                           "hostname = %(__host__), %(__halias__), "
-                          "ip = %(__ip__), [%(__iplist__);%(!__iplist__);%(__iplist__)]"  ,
+                          "ip = %(__ip__), [%(__iplist__); %(!__iplist__); %(__iplist__)]"  ,
                           E_EOARG);
     if (error) {
         elapi_destroy_event_tplt(tpl);
@@ -411,7 +411,7 @@ int complex_event_test(void)
                           E_MESSAGE,
                           "date = %(R_stamp__), pid = %(__pid__), "
                           "hostname = %(__host__), %(__halias__), "
-                          "ip = %(__ip__), [%(__iplist__);%(__iplist__);%(__iplist__)]"  ,
+                          "ip = %(__ip__), [%(__iplist__); %(__iplist__); %(__iplist__)]"  ,
                           E_EOARG);
     if (error) {
         elapi_destroy_event_tplt(tpl);
@@ -429,6 +429,101 @@ int complex_event_test(void)
 }
 
 
+int template_test(void)
+{
+    int error = 0;
+    struct collection_item *event;
+
+    printf("Template test START:\n");
+
+    error = elapi_set_default_tplt(
+        E_HAVE_HOSTNAME,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to set default template! %d\n", error);
+        return error;
+    }
+
+    error = elapi_create_simple_event(
+        &event,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to create simple event! %d\n", error);
+        return error;
+    }
+
+    col_debug_collection(event, COL_TRAVERSE_DEFAULT);
+    elapi_destroy_event(event);
+
+    error = elapi_set_default_tplt(
+        E_HAVE_HOSTALIAS,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to set default template! %d\n", error);
+        return error;
+    }
+
+    error = elapi_create_simple_event(
+        &event,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to create simple event! %d\n", error);
+        return error;
+    }
+
+    col_debug_collection(event, COL_TRAVERSE_DEFAULT);
+    elapi_destroy_event(event);
+
+    error = elapi_set_default_tplt(
+        E_HAVE_HOSTIP,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to set default template! %d\n", error);
+        return error;
+    }
+
+    error = elapi_create_simple_event(
+        &event,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to create simple event! %d\n", error);
+        return error;
+    }
+
+    col_debug_collection(event, COL_TRAVERSE_DEFAULT);
+    elapi_destroy_event(event);
+
+    error = elapi_set_default_tplt(
+        E_HAVE_HOSTIPS,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to set default template! %d\n", error);
+        return error;
+    }
+
+    error = elapi_create_simple_event(
+        &event,
+        E_EOARG);
+
+    if (error) {
+        printf("Failed to create simple event! %d\n", error);
+        return error;
+    }
+
+    col_debug_collection(event, COL_TRAVERSE_DEFAULT);
+    elapi_destroy_event(event);
+
+    return EOK;
+}
+
+
 /* Main function of the unit test */
 
 int main(int argc, char *argv[])
@@ -438,18 +533,13 @@ int main(int argc, char *argv[])
                         elapi_get_default_tplt_test,
                         simple_event_test,
                         complex_event_test,
+                        template_test,
                         NULL };
     test_fn t;
     int i = 0;
 
     printf("Start\n");
-    /* I added second pair of parentheses in the while below
-     * becuase of the following warning I got:
-     * warning: suggest parentheses around assignment used as truth value
-     *
-     * There was a suggestion in general to add less parentheses...
-     * well it seems that compiler wants this one.
-     */
+
     while ((t = tests[i++])) {
         error = t();
         if (error) {