1 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
22 	fprintf(stderr, "usage: %s [-b bytes | -c lines | -e] [-s buffer-size]\n",  in usage()
34 	enum { MODE_BYTES, MODE_COUNT, MODE_EOF } mode;  in main()  local
38 	 * -b specifies number of bytes.  in main()
39 	 * -c specifies number of read() calls.  in main()
40 	 * -e specifies eof (default)  in main()
41 	 * -s to pass a buffer size  in main()
43 	 * Reading N lines is the same as -c with a high buffer size.  in main()
45 	mode = MODE_EOF;  in main()
46 	while ((ch = getopt(argc, argv, "b:c:es:")) != -1) {  in main()
49 			mode = MODE_BYTES;  in main()
52 				errx(1, "strtonum: %s", errstr);  in main()
55 			mode = MODE_COUNT;  in main()
58 				errx(1, "strtonum: %s", errstr);  in main()
61 			mode = MODE_EOF;  in main()
63 		case 's':  in main()
66 				errx(1, "strtonum: %s", errstr);  in main()
74 		if (mode == MODE_BYTES)  in main()
88 		 * Be careful not to over-read if we're in byte-mode.  In every other  in main()
89 		 * mode, we'll read as much as we can.  in main()
91 		if (mode == MODE_BYTES)  in main()
97 		if (ret == -1 && errno == EINTR)  in main()
99 		if (ret == -1)  in main()
102 			if (mode == MODE_EOF)  in main()
111 		 * Bail out if we've hit our metric (byte mode / count mode).  in main()
113 		switch (mode) {  in main()
115 			reps -= ret;  in main()
120 			reps--;  in main()