/* vi: set sw=4 ts=4: */
/*----------------------------------------------------------------------
- * Mini who is used to display user name, login time,
+ * Mini who is used to display user name, login time,
* idle time and host name.
*
* Author: Da Chen <dchen@ayrnetworks.com>
* as published by the Free Software Foundation:
* http://www.gnu.org/copyleft/gpl.html
*
- * Copyright (c) 2002 AYR Networks, Inc.
+ * Copyright (c) 2002 AYR Networks, Inc.
*----------------------------------------------------------------------
*/
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
+#include <stdio.h>
#include <stdlib.h>
#include <utmp.h>
#include <sys/stat.h>
-#include <errno.h>
-#include <string.h>
#include <time.h>
-#include <busybox.h>
+#include "busybox.h"
-extern int who_main(int argc, char **argv)
+static const char * idle_string (time_t t)
{
- struct utmp *ut;
- struct stat st;
- int devlen, len;
- time_t now, idle;
+ static char str[6];
+
+ time_t s = time(NULL) - t;
- 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();
+ if (s < 60)
+ return ".";
+ if (s < (24 * 60 * 60)) {
+ sprintf (str, "%02d:%02d",
+ (int) (s / (60 * 60)),
+ (int) ((s % (60 * 60)) / 60));
+ return (const char *) str;
+ }
+ return "old";
+}
- return 0;
+int who_main(int argc, char **argv)
+{
+ struct utmp *ut;
+ struct stat st;
+ char *name;
+
+ if (argc > 1) {
+ bb_show_usage();
+ }
+
+ setutent();
+ printf("USER TTY IDLE TIME HOST\n");
+ while ((ut = getutent()) != NULL) {
+ if (ut->ut_user[0] && ut->ut_type == USER_PROCESS) {
+ /* ut->ut_line is device name of tty - "/dev/" */
+ name = concat_path_file("/dev", ut->ut_line);
+ printf("%-10s %-8s %-8s %-12.12s %s\n", ut->ut_user, ut->ut_line,
+ (stat(name, &st)) ? "?" : idle_string(st.st_atime),
+ ctime((time_t*)&(ut->ut_tv.tv_sec)) + 4, ut->ut_host);
+ free(name);
+ }
+ }
+ endutent();
+ return 0;
}
-
-