Improve error messages

Fixes:
* RHBZ 513282 - Error Message Incorrect when Trying to add Group with GID
already in use
* RHBZ 513284 -  Error Message Incorrect when Trying to add User with
UID already in use
* RHBZ 513242 - Better error Message when modifying a user that doesn't exist
* RHBZ 513244 - Better error Message when adding a user to a group that doesn't
exist

4 files changed, 32 insertions, 5 deletions

diff --git a/server/tools/sss_groupadd.c b/server/tools/sss_groupadd.c
index e9c81b8f..b7994080 100644
--- a/server/tools/sss_groupadd.c
+++ b/server/tools/sss_groupadd.c
@@ -255,7 +255,7 @@ int main(int argc, const char **argv)
         ret = data->error;
         switch (ret) {
             case EEXIST:
-                ERROR("The group %s already exists\n", data->name);
+                ERROR("A group with the same name or UID already exists\n");
                 break;
 
             default:
diff --git a/server/tools/sss_groupmod.c b/server/tools/sss_groupmod.c
index 2fc6f9de..d91e3771 100644
--- a/server/tools/sss_groupmod.c
+++ b/server/tools/sss_groupmod.c
@@ -448,7 +448,20 @@ int main(int argc, const char **argv)
     if (data->error) {
         ret = data->error;
         DEBUG(1, ("sysdb operation failed (%d)[%s]\n", ret, strerror(ret)));
-        ERROR("Transaction error. Could not modify group.\n");
+        switch (ret) {
+            case ENOENT:
+                ERROR("Could not modify group - check if member group names are correct\n");
+                break;
+
+            case EFAULT:
+                ERROR("Could not modify group - check if groupname is correct\n");
+                break;
+
+            default:
+                ERROR("Transaction error. Could not modify group.\n");
+                break;
+        }
+
         ret = EXIT_FAILURE;
         goto fini;
     }
diff --git a/server/tools/sss_useradd.c b/server/tools/sss_useradd.c
index 2880182c..b2841798 100644
--- a/server/tools/sss_useradd.c
+++ b/server/tools/sss_useradd.c
@@ -516,13 +516,13 @@ int main(int argc, const char **argv)
         ret = data->error;
         switch (ret) {
             case EEXIST:
-                ERROR("The user %s already exists\n", data->name);
+                ERROR("A user with the same name or UID already exists\n");
                 break;
 
             default:
                 DEBUG(1, ("sysdb operation failed (%d)[%s]\n",
                           ret, strerror(ret)));
-                ERROR("Transaction error. Could not modify user.\n");
+                ERROR("Transaction error. Could not add user.\n");
                 break;
         }
         ret = EXIT_FAILURE;
diff --git a/server/tools/sss_usermod.c b/server/tools/sss_usermod.c
index 6ef873b6..65e94978 100644
--- a/server/tools/sss_usermod.c
+++ b/server/tools/sss_usermod.c
@@ -580,8 +580,22 @@ int main(int argc, const char **argv)
 
     if (data->error) {
         ret = data->error;
+
         DEBUG(1, ("sysdb operation failed (%d)[%s]\n", ret, strerror(ret)));
-        ERROR("Transaction error. Could not modify user.\n");
+        switch (ret) {
+            case ENOENT:
+                ERROR("Could not modify user - check if group names are correct\n");
+                break;
+
+            case EFAULT:
+                ERROR("Could not modify user - check if username is correct\n");
+                break;
+
+            default:
+                ERROR("Transaction error. Could not modify user.\n");
+                break;
+        }
+
         ret = EXIT_FAILURE;
         goto fini;
     }