00a6a7503 — BusyBox

Subject

Add the who applet, supplied by Da Chen

Binary

No binary (build failed)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

(log yok)

Commit Diff GitHub →

coreutils/who.c +85 -0 include/applets.h +3 -0 include/usage.h +10 -2

coreutils/who.c+85 -0

@@ -0,0 +1,85 @@
+	/* vi: set sw=4 ts=4: */
+	/*----------------------------------------------------------------------
+	* Mini who is used to display user name, login time,
+	* idle time and host name.
+	*
+	* Author: Da Chen <[email protected]>
+	*
+	* This is a free document; you can redistribute it and/or
+	* modify it under the terms of the GNU General Public License
+	* as published by the Free Software Foundation:
+	* http://www.gnu.org/copyleft/gpl.html
+	*
+	* Copyright (c) 2002 AYR Networks, Inc.
+	*----------------------------------------------------------------------
+	*/
+
+	#include <sys/types.h>
+	#include <fcntl.h>
+	#include <unistd.h>
+	#include <stdlib.h>
+	#include <utmp.h>
+	#include <sys/stat.h>
+	#include <errno.h>
+	#include <string.h>
+	#include <time.h>
+	#include <busybox.h>
+
+	extern int who_main(int argc, char **argv)
+	{
+	struct utmp *ut;
+	struct stat st;
+	int devlen, len;
+	time_t now, idle;
+
+	if (argc > 1)
+	show_usage();
+
+	setutent();
+	devlen = sizeof("/dev/") - 1;
+	printf("USER TTY IDLE FROM HOST\n");
+
+	while ((ut = getutent()) != NULL) {
+	char name[40];
+
+	if (ut->ut_user[0] && ut->ut_type == USER_PROCESS) {
+	len = strlen(ut->ut_line);
+	if (ut->ut_line[0] == '/') {
+	strncpy(name, ut->ut_line, len);
+	name[len] = '\0';
+	strcpy(ut->ut_line, ut->ut_line + devlen);
+	} else {
+	strcpy(name, "/dev/");
+	strncpy(name+devlen, ut->ut_line, len);
+	name[devlen+len] = '\0';
+	}
+
+	printf("%-10s %-8s ", ut->ut_user, ut->ut_line);
+
+	if (stat(name, &st) == 0) {
+	now = time(NULL);
+	idle = now - st.st_atime;
+
+	if (idle < 60)
+	printf("00:00m ");
+	else if (idle < (60 * 60))
+	printf("00:%02dm ", (int)(idle / 60));
+	else if (idle < (24 * 60 * 60))
+	printf("%02d:%02dm ", (int)(idle / (60 * 60)),
+	(int)(idle % (60 * 60)) / 60);
+	else if (idle < (24 * 60 * 60 * 365))
+	printf("%03ddays ", (int)(idle / (24 * 60 * 60)));
+	else
+	printf("%02dyears ", (int) (idle / (24 * 60 * 60 * 365)));
+	} else
+	printf("%-8s ", "?");
+
+	printf("%-12.12s %s\n", ctime(&(ut->ut_tv.tv_sec)) + 4, ut->ut_host);
+	}
+	}
+	endutent();
+
+	return 0;
+	}
+
+

include/applets.h+3 -0

@@ -506,6 +506,9 @@
	#ifdef CONFIG_WHICH
	APPLET(which, which_main, _BB_DIR_USR_BIN)
	#endif
+	#ifdef CONFIG_WHO
+	APPLET(who, who_main, _BB_DIR_USR_BIN)
+	#endif
	#ifdef CONFIG_WHOAMI
	APPLET(whoami, whoami_main, _BB_DIR_USR_BIN)
	#endif

include/usage.h+10 -2

@@ -1261,9 +1261,13 @@
	"$ mv /tmp/foo /bin/bar\n"

	#define nc_trivial_usage \
-	"[IP] [port]"
+	"[OPTIONS] [IP] [port]"
	#define nc_full_usage \
-	"Netcat opens a pipe to IP:port"
+	"Netcat opens a pipe to IP:port\n\n" \
+	"Options:\n" \
+	"\t-l\t\tlisten mode, for inbound connects\n" \
+	"\t-p PORT\t\tlocal port number\n" \
+	"\t-e PROG\t\tprogram to exec after connect (dangerous!)"
	#define nc_example_usage \
	"$ nc foobar.somedomain.com 25\n" \
	"220 foobar ESMTP Exim 3.12 #1 Sat, 15 Apr 2000 00:03:02 -0600\n" \
@@ -1967,6 +1971,10 @@
	#define which_example_usage \
	"$ which login\n" \
	"/bin/login\n"
+	#define who_trivial_usage \
+	" "
+	#define who_full_usage \
+	"Prints the current user names and related information"

	#define whoami_trivial_usage \
	""