1 /* count.c - Progress indicator from stdin to stdout 2 * 3 * Copyright 2002 Rob Landley <rob@landley.net> 4 5 USE_COUNT(NEWTOY(count, NULL, TOYFLAG_USR|TOYFLAG_BIN)) 6 7 config COUNT 8 bool "count" 9 default y 10 help 11 usage: count 12 13 Copy stdin to stdout, displaying simple progress indicator to stderr. 14 */ 15 16 #include "toys.h" 17 18 void count_main(void) 19 { 20 uint64_t size = 0; 21 int len; 22 char buf[32]; 23 24 for (;;) { 25 len = xread(0, toybuf, sizeof(toybuf)); 26 if (!len) break; 27 size += len; 28 xwrite(1, toybuf, len); 29 xwrite(2, buf, sprintf(buf, "%"PRIu64" bytes\r", size)); 30 } 31 xwrite(2, "\n", 1); 32 } 33