diff options
Diffstat (limited to 'debianutils/pipe_progress.c')
-rw-r--r-- | debianutils/pipe_progress.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/debianutils/pipe_progress.c b/debianutils/pipe_progress.c new file mode 100644 index 000000000..75d26e20f --- /dev/null +++ b/debianutils/pipe_progress.c @@ -0,0 +1,42 @@ +/* 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 "busybox.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) +{ + 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; +} |