| /* vi: set sw=4 ts=4: */ |
| /* |
| * Monitor a pipe with a simple progress display. |
| * |
| * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
| */ |
| |
| #include "libbb.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <time.h> |
| |
| #define PIPE_PROGRESS_SIZE 4096 |
| |
| /* Read a block of data from stdin, write it to stdout. |
| * Activity is indicated by a '.' to stderr |
| */ |
| int pipe_progress_main(int argc, char **argv); |
| int pipe_progress_main(int argc, char **argv) |
| { |
| RESERVE_CONFIG_BUFFER(buf, PIPE_PROGRESS_SIZE); |
| time_t t = time(NULL); |
| size_t len; |
| |
| while ((len = fread(buf, 1, PIPE_PROGRESS_SIZE, stdin)) > 0) { |
| time_t new_time = time(NULL); |
| if (new_time != t) { |
| t = new_time; |
| fputc('.', stderr); |
| } |
| fwrite(buf, len, 1, stdout); |
| } |
| |
| fputc('\n', stderr); |
| |
| if (ENABLE_FEATURE_CLEAN_UP) |
| RELEASE_CONFIG_BUFFER(buf); |
| |
| return 0; |
| } |