/*
* Mini ps implementation(s) for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen
- * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
-/*
- * This contains _two_ implementations of ps for Linux. One uses the
- * traditional /proc virtual filesystem, and the other use the devps kernel
- * driver (written by Erik Andersen to avoid using /proc thereby saving 100k+).
- */
-
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>
#include "busybox.h"
+#ifdef CONFIG_SELINUX
+#include <fs_secure.h>
+#include <ss.h>
+#include <flask_util.h> /* for is_flask_enabled() */
+#endif
static const int TERMINAL_WIDTH = 79; /* not 80 in case terminal has linefold bug */
-#if ! defined CONFIG_FEATURE_USE_DEVPS_PATCH
-
extern int ps_main(int argc, char **argv)
{
procps_status_t * p;
#define terminal_width TERMINAL_WIDTH
#endif
+#ifdef CONFIG_SELINUX
+ int use_selinux = 0;
+ security_id_t sid;
+ if(is_flask_enabled() && argv[1] && !strcmp(argv[1], "-c") )
+ use_selinux = 1;
+#endif
+
#ifdef CONFIG_FEATURE_AUTOWIDTH
ioctl(fileno(stdout), TIOCGWINSZ, &win);
terminal_width = win.ws_col - 1;
#endif
+#ifdef CONFIG_SELINUX
+ if(use_selinux)
+ printf(" PID Context Stat Command\n");
+ else
+#endif
printf(" PID Uid VmSize Stat Command\n");
+#ifdef CONFIG_SELINUX
+ while ((p = procps_scan(1, use_selinux, &sid)) != 0) {
+#else
while ((p = procps_scan(1)) != 0) {
+#endif
char *namecmd = p->cmd;
+#ifdef CONFIG_SELINUX
+ if(use_selinux)
+ {
+ char sbuf[128];
+ len = sizeof(sbuf);
+ if(security_sid_to_context(sid, (security_context_t)&sbuf, &len))
+ strcpy(sbuf, "unknown");
+
+ len = printf("%5d %-32s %s ", p->pid, sbuf, p->state);
+ }
+ else
+#endif
if(p->rss == 0)
len = printf("%5d %-8s %s ", p->pid, p->user, p->state);
else
return EXIT_SUCCESS;
}
-
-#else /* CONFIG_FEATURE_USE_DEVPS_PATCH */
-
-
-/* The following is the second ps implementation --
- * this one uses the nifty new devps kernel device.
- */
-
-#include <linux/devps.h> /* For Erik's nifty devps device driver */
-
-
-extern int ps_main(int argc, char **argv)
-{
- char device[] = "/dev/ps";
- int i, j, len, fd;
- pid_t num_pids;
- pid_t* pid_array = NULL;
- struct pid_info info;
- char uidName[9];
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- struct winsize win = { 0, 0, 0, 0 };
- int terminal_width = TERMINAL_WIDTH;
-#else
-#define terminal_width TERMINAL_WIDTH
-#endif
-
- if (argc > 1 && **(argv + 1) == '-')
- show_usage();
-
- /* open device */
- fd = open(device, O_RDONLY);
- if (fd < 0)
- perror_msg_and_die( "open failed for `%s'", device);
-
- /* Find out how many processes there are */
- if (ioctl (fd, DEVPS_GET_NUM_PIDS, &num_pids)<0)
- perror_msg_and_die( "\nDEVPS_GET_PID_LIST");
-
- /* Allocate some memory -- grab a few extras just in case
- * some new processes start up while we wait. The kernel will
- * just ignore any extras if we give it too many, and will trunc.
- * the list if we give it too few. */
- pid_array = (pid_t*) xcalloc( num_pids+10, sizeof(pid_t));
- pid_array[0] = num_pids+10;
-
- /* Now grab the pid list */
- if (ioctl (fd, DEVPS_GET_PID_LIST, pid_array)<0)
- perror_msg_and_die("\nDEVPS_GET_PID_LIST");
-
-#ifdef CONFIG_FEATURE_AUTOWIDTH
- ioctl(fileno(stdout), TIOCGWINSZ, &win);
- if (win.ws_col > 0)
- terminal_width = win.ws_col - 1;
-#endif
-
- /* Print up a ps listing */
- printf(" PID Uid Stat Command\n");
-
- for (i=1; i<pid_array[0] ; i++) {
- info.pid = pid_array[i];
-
- if (ioctl (fd, DEVPS_GET_PID_INFO, &info)<0)
- perror_msg_and_die("\nDEVPS_GET_PID_INFO");
-
- /* Make some adjustments as needed */
- my_getpwuid(uidName, info.euid);
-
- if(p.vmsize == 0)
- len = printf("%5d %-8s %c ", p.pid, uidName, p.state);
- else
- len = printf("%5d %-8s %6d %c ", p.pid, uidName, p.vmsize, p.state);
- if (strlen(info.command_line) > 1) {
- for( j=0; j<(sizeof(info.command_line)-1) && j < (terminal_width-len); j++) {
- if (*(info.command_line+j) == '\0' && *(info.command_line+j+1) != '\0') {
- *(info.command_line+j) = ' ';
- }
- }
- *(info.command_line+j) = '\0';
- puts(info.command_line);
- } else {
- printf("[%s]\n", info.name);
- }
- }
-
- /* Free memory */
- free( pid_array);
-
- /* close device */
- if (close (fd) != 0)
- perror_msg_and_die("close failed for `%s'", device);
-
- exit (0);
-}
-
-#endif /* CONFIG_FEATURE_USE_DEVPS_PATCH */
-
projects / oweals / busybox.git / blobdiff