1/* vi: set sw=4 ts=4: */ 2/* 3 * Monitor a pipe with a simple progress display. 4 * 5 * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess 6 * 7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. 8 */ 9 10#include "libbb.h" 11 12#define PIPE_PROGRESS_SIZE 4096 13 14/* Read a block of data from stdin, write it to stdout. 15 * Activity is indicated by a '.' to stderr 16 */ 17int pipe_progress_main(int argc, char **argv); 18int pipe_progress_main(int argc, char **argv) 19{ 20 RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE); 21 time_t t = time(NULL); 22 size_t len; 23 24 while ((len = fread(buf, 1, PIPE_PROGRESS_SIZE, stdin)) > 0) { 25 time_t new_time = time(NULL); 26 if (new_time != t) { 27 t = new_time; 28 fputc('.', stderr); 29 } 30 fwrite(buf, len, 1, stdout); 31 } 32 33 fputc('\n', stderr); 34 35 if (ENABLE_FEATURE_CLEAN_UP) 36 RELEASE_CONFIG_BUFFER(buf); 37 38 return 0; 39} 40