/*
* Mini ps implementation(s) for busybox
*
- * Copyright (C) 1999-200
3 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 1999-200
4 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
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under the GPL v2, see the file LICENSE in this tarball.
*/
+#include "busybox.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.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() */
+#if ENABLE_SELINUX
+#include <selinux/selinux.h> /* for is_selinux_enabled() */
#endif
-static const int TERMINAL_WIDTH = 79; /* not 80 in case terminal has linefold bug */
-
-
-
-extern int ps_main(int argc, char **argv)
+int ps_main(int argc, char **argv)
{
procps_status_t * p;
int i, len;
- int terminal_width = TERMINAL_WIDTH;
-#ifdef CONFIG_SELINUX
+#if ENABLE_SELINUX
int use_selinux = 0;
- security_id_t sid;
- if(is_flask_enabled() && argv[1] && !strcmp(argv[1], "-c") )
- use_selinux = 1;
+ security_context_t sid=NULL;
#endif
- get_terminal_width_height(0, &terminal_width, NULL);
- /* Go one less... */
- terminal_width--;
+#if ENABLE_FEATURE_PS_WIDE
+ int terminal_width;
+ int w_count = 0;
-#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) {
+ bb_opt_complementally="-:ww";
#else
- while ((p = procps_scan(1)) != 0) {
+# define terminal_width 79
#endif
- char *namecmd = p->cmd;
-#ifdef CONFIG_SELINUX
- if(use_selinux)
- {
+#if ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX
+ /* handle arguments */
+#if ENABLE_FEATURE_PS_WIDE && ENABLE_SELINUX
+ i = bb_getopt_ulflags(argc, argv, "wc", &w_count);
+#elif ENABLE_FEATURE_PS_WIDE && !ENABLE_SELINUX
+ bb_getopt_ulflags(argc, argv, "w", &w_count);
+#else /* !ENABLE_FEATURE_PS_WIDE && ENABLE_SELINUX */
+ i = bb_getopt_ulflags(argc, argv, "c");
+#endif
+#if ENABLE_FEATURE_PS_WIDE
+ /* if w is given once, GNU ps sets the width to 132,
+ * if w is given more than once, it is "unlimited"
+ */
+ if(w_count) {
+ terminal_width = (w_count==1) ? 132 : INT_MAX;
+ } else {
+ get_terminal_width_height(1, &terminal_width, NULL);
+ /* Go one less... */
+ terminal_width--;
+ }
+#endif
+#if ENABLE_SELINUX
+ if ((i & (1+ENABLE_FEATURE_PS_WIDE)) && is_selinux_enabled())
+ use_selinux = 1;
+#endif
+#endif /* ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX */
+
+#if ENABLE_SELINUX
+ if (use_selinux)
+ printf(" PID Context Stat Command\n");
+ else
+#endif
+ printf(" PID Uid VmSize Stat Command\n");
+
+ while ((p = procps_scan(1)) != 0) {
+ char *namecmd = p->cmd;
+#if ENABLE_SELINUX
+ if (use_selinux)
+ {
char sbuf[128];
len = sizeof(sbuf);
- if(security_sid_to_context(sid, (security_context_t)&sbuf, &len))
- strcpy(sbuf, "unknown");
+ if (is_selinux_enabled()) {
+ if (getpidcon(p->pid,&sid)<0)
+ sid=NULL;
+ }
+
+ if (sid) {
+ /* I assume sid initilized with NULL */
+ len = strlen(sid)+1;
+ safe_strncpy(sbuf, sid, len);
+ freecon(sid);
+ sid=NULL;
+ }else {
+ safe_strncpy(sbuf, "unknown",7);
+ }
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
- len = printf("%5d %-8s %6ld %s ", p->pid, p->user, p->rss, p->state);
+ if(p->rss == 0)
+ len = printf("%5d %-8s %s ", p->pid, p->user, p->state);
+ else
+ len = printf("%5d %-8s %6ld %s ", p->pid, p->user, p->rss, p->state);
+
i = terminal_width-len;
- if(namecmd != 0 && namecmd[0] != 0) {
+ if(namecmd && namecmd[0]) {
if(i < 0)
- i = 0;
- if(strlen(namecmd) > i)
+ i = 0;
+ if(strlen(namecmd) > (size_t)i)
namecmd[i] = 0;
printf("%s\n", namecmd);
} else {
namecmd = p->short_cmd;
if(i < 2)
i = 2;
- if(strlen(namecmd) > (i-2))
+ if(strlen(namecmd) > ((size_t)i-2))
namecmd[i-2] = 0;
printf("[%s]\n", namecmd);
}
- free(p->cmd);
+ /* no check needed, but to make valgrind happy.. */
+ if (ENABLE_FEATURE_CLEAN_UP && p->cmd)
+ free(p->cmd);
}
return EXIT_SUCCESS;
}
-
projects / oweals / busybox.git / blobdiff