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New -e flag, modifies the behavior of the -u uid flag to use the

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effective user id, instead of the real user id.

MFC after:	2 weeks
This commit is contained in:
Diomidis Spinellis 2004-01-26 11:11:36 +00:00
parent 8615b04cff
commit 5aa41214a8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125013
2 changed files with 16 additions and 4 deletions
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7
usr.bin/killall/killall.1
View File

@ -32,7 +32,7 @@
.Nd kill processes by name
.Sh SYNOPSIS
.Nm
.Op Fl dlmsvz
.Op Fl delmsvz
.Op Fl help
.Op Fl j Ar jid
.Op Fl u Ar user
@ -63,6 +63,11 @@ Be more verbose about what will be done. For a single
option, a list of the processes that will be sent the signal will be
printed, or a message indicating that no matching processes have been
found.
.It Fl e
Use the effective user id instead of the (default) real user id for matching
processes specified with the
.Fl u
option.
.It Fl help
Give a help on the command usage and exit.
.It Fl l

13
usr.bin/killall/killall.c
View File

@ -50,7 +50,7 @@ static void __dead2
usage(void)
{
fprintf(stderr, "usage: killall [-dlmsvz] [-help] [-j jid]\n");
fprintf(stderr, "usage: killall [-delmsvz] [-help] [-j jid]\n");
fprintf(stderr,
" [-u user] [-t tty] [-c cmd] [-SIGNAL] [cmd]...\n");
fprintf(stderr, "At least one option or argument to specify processes must be given.\n");
@ -113,6 +113,7 @@ main(int ac, char **av)
int vflag = 0;
int sflag = 0;
int dflag = 0;
int eflag = 0;
int jflag = 0;
int mflag = 0;
int zflag = 0;
@ -192,6 +193,9 @@ main(int ac, char **av)
case 'd':
dflag++;
break;
case 'e':
eflag++;
break;
case 'm':
mflag++;
break;
@ -272,7 +276,7 @@ main(int ac, char **av)
miblen = 3;
if (user) {
mib[2] = KERN_PROC_RUID;
mib[2] = eflag ? KERN_PROC_UID : KERN_PROC_RUID;
mib[3] = uid;
miblen = 4;
} else if (tty) {
@ -313,7 +317,10 @@ main(int ac, char **av)
strncpy(thiscmd, procs[i].ki_comm, MAXCOMLEN);
thiscmd[MAXCOMLEN] = '\0';
thistdev = procs[i].ki_tdev;
thisuid = procs[i].ki_ruid; /* real uid */
if (eflag)
thisuid = procs[i].ki_uid; /* effective uid */
else
thisuid = procs[i].ki_ruid; /* real uid */
if (thispid == mypid)
continue;