SSS_SEED tool has an interactive (-i) mode to provide user information. When the UID/GID field is assigned with alphabets/alphanumeric values, execution of sss_seed terminates immediately without giving proper error message.

Steps to reproduce:
1. Ensure that the system is offline.
2. Clear the sssd cache and restart sssd service.
3. Execute the sss_seed tool with interactive option and provide alphabets/alphanumeric values to UID/GID fields. See the command output below:
# sss_seed -D LDAP -n testuser -i
Enter UID : xy12
# echo $?
1
Result seen:
Execution of sss_seed tool terminates immediately without providing any error message.

Expected result:
An appropriate error message.