int i; int numDomains; char **inactiveDomains; numDomains = virConnectNumOfDefinedDomains(conn); inactiveDomains = malloc(sizeof(char *) * numDomains); numDomains = virConnectListDomains(conn, inactiveDomains, numDomains); printf("Inactive domain names:\n"); for (i = 0 ; i < numDomains ; i++) { printf(" %s\n", inactiveDomains[i]); free(inactiveDomains[i]); } free(inactiveDomains); Example 4.5. Listing inactive domains There should use "virConnectListDefinedDomains" for inactive domains.