From: Igor Homyakov <homyakov@ramax.spb.ru> To: ALT Linux Sisyphus <sisyphus@altlinux.ru> Cc: ldv@altlinux.ru Subject: [sisyphus] [procps] wrong process UID Date: Tue, 19 Nov 2002 15:21:38 +0300 Message-ID: <20021119122138.GE27615@kadath.pm.ramax.spb.ru> (raw) [-- Attachment #1: Type: text/plain, Size: 484 bytes --] Утилита ps не правильно отображает UID процесса, точнее она показвает его EUID вместо UID. Приложен простенький тест, процесс запускаеться и меняет свой эфеективный ID после чего выводит значения UID и EUID. Как видно ps показывает одинаковые значения. $ sudo ./a.out running: pid 28854, uid 0, euid 113 $ ps -axo pid,uid,euid | grep 28854 28854 113 113 -- Igor Homyakov <homyakov at altlinux dot ru> http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=190141 [-- Attachment #2: euid_test.c --] [-- Type: text/plain, Size: 562 bytes --] /* -*- C -*- * * $Id$ * * Author: Igor Homyakov <homyakov@ramax.spb.ru> * * Created: Tue Nov 19 15:02:05 2002 * * Comments: stupid test * */ #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <errno.h> int main (int argc, char* argv[]) { uid_t euid = 113; unsigned int timeout = 30; if ( seteuid( euid ) == -1 ) { perror("seteuid err:"); exit(1); } else { (void)printf( "running: pid %d, uid %d, euid %d\n", getpid(), getuid(), geteuid()); (void)sleep( timeout ); } return 0; }
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