34 	fprintf(stderr,  in usage()
156 				fprintf(stderr, "Bad <size> value '%s'\n", optarg);  in main()
164 			fprintf(stderr, "Unknown option: %c\n", opt);  in main()
170 		fprintf(stderr, "No address given\n");  in main()
175 		fprintf(stderr, "Bad <addr> value '%s'\n", argv[optind]);  in main()
182 		fprintf(stderr, "Filename AND value given\n");  in main()
186 		fprintf(stderr, "No value given for WRITE\n");  in main()
192 			fprintf(stderr, "Bad <value> value '%s'\n", argv[optind]);  in main()
197 			fprintf(stderr, "<value> too large\n");  in main()
203 		fprintf(stderr, "No size given for file memread\n");  in main()
207 		fprintf(stderr, "Too many arguments '%s'...\n", argv[optind]);  in main()
213 			fprintf(stderr, "Failed to open destination file '%s': %s\n", filename, strerror(errno));  in main()
220 			fprintf(stderr, "Failed to open source file '%s': %s\n", filename, strerror(errno));  in main()
228 			fprintf(stderr, "Failed to seek on '%s': %s\n",  in main()
233 			fprintf(stderr, "Failed to seek on '%s': %s\n",  in main()
243 		fprintf(stderr, "Badly aligned <addr> for access size\n");  in main()
248 		fprintf(stderr, "Badly aligned <size> for access size\n");  in main()
273 		fprintf(stderr, "Sorry, cannot map the top 4K page\n");  in main()
280 		fprintf(stderr, "Aligned addr+len exceeds top of address space\n");  in main()
298 		fprintf(stderr, "mmap() failed: %s\n", strerror(errno));  in main()
320 			fprintf(stderr, "File write failed: %s\n", strerror(errno));  in main()
324 			fprintf(stderr, "Only wrote %d of %d bytes to file\n",  in main()
333 			fprintf(stderr, "File read failed: %s\n", strerror(errno));  in main()
337 			fprintf(stderr, "Only read %d of %d bytes from file\n",  in main()