diff options
Diffstat (limited to 'release/src/router/busybox/coreutils/watch.c')
-rw-r--r-- | release/src/router/busybox/coreutils/watch.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/release/src/router/busybox/coreutils/watch.c b/release/src/router/busybox/coreutils/watch.c deleted file mode 100644 index f9f40189..00000000 --- a/release/src/router/busybox/coreutils/watch.c +++ /dev/null @@ -1,110 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Mini watch implementation for busybox - * - * Copyright (C) 2001 by Michael Habermann <mhabermann@gmx.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/* BB_AUDIT SUSv3 N/A */ -/* BB_AUDIT GNU defects -- only option -n is supported. */ - -/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) - * - * Removed dependency on date_main(), added proper error checking, and - * reduced size. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> -#include <time.h> -#include <assert.h> -#include <unistd.h> -#include <sys/wait.h> -#include "busybox.h" - -extern int watch_main(int argc, char **argv) -{ - const int header_len = 40; - time_t t; - pid_t pid; - unsigned period = 2; - int old_stdout; - int len, len2; - char **watched_argv; - char header[header_len + 1]; - - if (argc < 2) { - bb_show_usage(); - } - - /* don't use getopt, because it permutes the arguments */ - ++argv; - if ((argc > 3) && !strcmp(*argv, "-n") - ) { - period = bb_xgetularg10_bnd(argv[1], 1, UINT_MAX); - argv += 2; - } - watched_argv = argv; - - /* create header */ - - len = snprintf(header, header_len, "Every %ds:", period); - /* Don't bother checking for len < 0, as it should never happen. - * But, just to be prepared... */ - assert(len >= 0); - do { - len2 = strlen(*argv); - if (len + len2 >= header_len-1) { - break; - } - header[len] = ' '; - memcpy(header+len+1, *argv, len2); - len += len2+1; - } while (*++argv); - - header[len] = 0; - - /* thanks to lye, who showed me how to redirect stdin/stdout */ - old_stdout = dup(1); - - while (1) { - time(&t); - /* Use dprintf to avoid fflush()ing stdout. */ - if (dprintf(1, "\033[H\033[J%-*s%s\n", header_len, header, ctime(&t)) < 0) { - bb_perror_msg_and_die("printf"); - } - - pid = vfork(); /* vfork, because of ucLinux */ - if (pid > 0) { - //parent - wait(0); - sleep(period); - } else if (0 == pid) { - //child - close(1); - dup(old_stdout); - if (execvp(*watched_argv, watched_argv)) { - bb_error_msg_and_die("Couldn't run command\n"); - } - } else { - bb_error_msg_and_die("Couldn't vfork\n"); - } - } -} |