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-rw-r--r--coreutils/who.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/coreutils/who.c b/coreutils/who.c
index 725974425..f336c953c 100644
--- a/coreutils/who.c
+++ b/coreutils/who.c
@@ -46,15 +46,15 @@ int who_main(int argc, char **argv)
struct utmp *ut;
struct stat st;
char *name;
+ unsigned opt;
- if (argc > 1) {
- bb_show_usage();
- }
+ opt_complementary = "=0";
+ opt = getopt32(argv, "a");
setutent();
printf("USER TTY IDLE TIME HOST\n");
while ((ut = getutent()) != NULL) {
- if (ut->ut_user[0] && ut->ut_type == USER_PROCESS) {
+ if (ut->ut_user[0] && (opt || ut->ut_type == USER_PROCESS)) {
/* ut->ut_line is device name of tty - "/dev/" */
name = concat_path_file("/dev", ut->ut_line);
str6[0] = '?';