72     fprintf(stderr, "Opaque Binary Blob (OBB) Tool\n\n");  in usage()
73     fprintf(stderr, "Usage:\n");  in usage()
74     fprintf(stderr,  in usage()
77     fprintf(stderr,  in usage()
84     fprintf(stderr,  in usage()
87     fprintf(stderr,  in usage()
95         fprintf(stderr, "ERROR: %s: OBB signature already present\n", filename);  in doAdd()
107         fprintf(stderr, "ERROR: %s: couldn't write OBB signature: %s\n",  in doAdd()
112     fprintf(stderr, "OBB signature successfully written\n");  in doAdd()
118         fprintf(stderr, "ERROR: %s: no OBB signature present\n", filename);  in doRemove()
123         fprintf(stderr, "ERROR: %s: couldn't remove OBB signature\n", filename);  in doRemove()
127     fprintf(stderr, "OBB signature successfully removed\n");  in doRemove()
133         fprintf(stderr, "ERROR: %s: couldn't read OBB signature\n", filename);  in doInfo()
199             fprintf(stderr, "'%s' requires an argument\n", longopts[option_index].name);  in main()
209                 fprintf(stderr, "ERROR: invalid version; should be integer!\n\n");  in main()
220                 fprintf(stderr, "ERROR: salt must be 8 bytes in hex (e.g., ABCD65031337D00D)\n\n");  in main()
230                     fprintf(stderr, "ERROR: salt must be in hex (e.g., ABCD65031337D00D)\n");  in main()
244         fprintf(stderr, "%s %s\n", gProgName, gProgVersion);  in main()
253         fprintf(stderr, "ERROR: unknown function '%s'!\n\n", op); \  in main()
263             fprintf(stderr, "ERROR: filename required!\n\n");  in main()
274                 fprintf(stderr, "ERROR: arguments required 'packageName' and 'version'\n");  in main()
288             fprintf(stderr, "ERROR: unknown command '%s'!\n\n", op);  in main()