Last change
on this file since 3725 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
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File size:
1.2 KB
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[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Monitor a pipe with a simple progress display.
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| 4 | *
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| 5 | * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess
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| 6 | *
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[2725] | 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 8 | */
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[3621] | 9 | //config:config PIPE_PROGRESS
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| 10 | //config: bool "pipe_progress"
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| 11 | //config: default y
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| 12 | //config: help
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| 13 | //config: Display a dot to indicate pipe activity.
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[3232] | 14 |
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[3621] | 15 | //applet:IF_PIPE_PROGRESS(APPLET(pipe_progress, BB_DIR_BIN, BB_SUID_DROP))
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| 16 |
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| 17 | //kbuild:lib-$(CONFIG_PIPE_PROGRESS) += pipe_progress.o
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| 18 |
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[3232] | 19 | //usage:#define pipe_progress_trivial_usage NOUSAGE_STR
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| 20 | //usage:#define pipe_progress_full_usage ""
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| 21 |
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[1765] | 22 | #include "libbb.h"
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[821] | 23 |
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| 24 | #define PIPE_PROGRESS_SIZE 4096
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| 25 |
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| 26 | /* Read a block of data from stdin, write it to stdout.
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| 27 | * Activity is indicated by a '.' to stderr
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| 28 | */
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[2725] | 29 | int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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| 30 | int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
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[821] | 31 | {
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[2725] | 32 | char buf[PIPE_PROGRESS_SIZE];
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[821] | 33 | time_t t = time(NULL);
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[2725] | 34 | int len;
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[821] | 35 |
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[2725] | 36 | while ((len = safe_read(STDIN_FILENO, buf, PIPE_PROGRESS_SIZE)) > 0) {
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[821] | 37 | time_t new_time = time(NULL);
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| 38 | if (new_time != t) {
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| 39 | t = new_time;
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[2725] | 40 | bb_putchar_stderr('.');
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[821] | 41 | }
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[2725] | 42 | full_write(STDOUT_FILENO, buf, len);
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[821] | 43 | }
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| 44 |
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[2725] | 45 | bb_putchar_stderr('\n');
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[821] | 46 |
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| 47 | return 0;
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| 48 | }
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