2000-02-08 19:58:47 +00:00
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/* vi: set sw=4 ts=4: */
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1999-10-20 08:05:35 +00:00
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/*
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2000-03-07 07:41:42 +00:00
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* Mini ps implementation(s) for busybox
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1999-10-20 08:05:35 +00:00
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*
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2004-03-15 08:29:22 +00:00
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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2007-06-06 07:40:16 +00:00
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* Fix for SELinux Support:(c)2007 Hiroshi Shinji <shiroshi@my.email.ne.jp>
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(c)2007 Yuichi Nakamura <ynakam@hitachisoft.jp>
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2000-03-07 07:41:42 +00:00
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*
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2006-09-22 02:52:41 +00:00
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* Licensed under the GPL version 2, see the file LICENSE in this tarball.
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2001-10-24 05:00:29 +00:00
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*/
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2007-05-26 19:00:18 +00:00
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#include "libbb.h"
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2000-03-07 23:32:17 +00:00
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2007-07-25 17:27:58 +00:00
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/* Absolute maximum on output line length */
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enum { MAX_WIDTH = 2*1024 };
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2006-11-05 00:45:47 +00:00
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#if ENABLE_DESKTOP
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/* Print value to buf, max size+1 chars (including trailing '\0') */
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2007-01-22 23:04:27 +00:00
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static void func_user(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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safe_strncpy(buf, get_cached_username(ps->uid), size+1);
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}
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2007-01-22 23:04:27 +00:00
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static void func_comm(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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safe_strncpy(buf, ps->comm, size+1);
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}
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2007-01-22 23:04:27 +00:00
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static void func_args(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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2007-06-30 14:47:41 +00:00
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read_cmdline(buf, size, ps->pid, ps->comm);
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2006-11-05 00:45:47 +00:00
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}
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2007-01-22 23:04:27 +00:00
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static void func_pid(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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2007-04-19 14:46:14 +00:00
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sprintf(buf, "%*u", size, ps->pid);
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2006-11-05 00:45:47 +00:00
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}
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2007-01-22 23:04:27 +00:00
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static void func_ppid(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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2007-04-19 14:46:14 +00:00
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sprintf(buf, "%*u", size, ps->ppid);
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2006-11-05 00:45:47 +00:00
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}
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2007-01-22 23:04:27 +00:00
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static void func_pgid(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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2007-04-19 14:46:14 +00:00
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sprintf(buf, "%*u", size, ps->pgid);
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2006-11-05 00:45:47 +00:00
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}
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2007-08-29 18:23:36 +00:00
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static void put_lu(char *buf, int size, unsigned long u)
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2006-11-05 00:45:47 +00:00
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{
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char buf5[5];
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2007-05-01 20:07:29 +00:00
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smart_ulltoa5( ((unsigned long long)u) << 10, buf5);
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2007-04-19 14:46:14 +00:00
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sprintf(buf, "%.*s", size, buf5);
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2006-11-05 00:45:47 +00:00
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}
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2007-05-01 20:07:29 +00:00
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static void func_vsz(char *buf, int size, const procps_status_t *ps)
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{
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2007-08-29 18:23:36 +00:00
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put_lu(buf, size, ps->vsz);
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2007-05-01 20:07:29 +00:00
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}
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2007-04-19 14:46:14 +00:00
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static void func_rss(char *buf, int size, const procps_status_t *ps)
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{
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2007-08-29 18:23:36 +00:00
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put_lu(buf, size, ps->rss);
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2007-04-19 14:46:14 +00:00
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}
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static void func_tty(char *buf, int size, const procps_status_t *ps)
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{
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2007-06-19 14:43:17 +00:00
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buf[0] = '?';
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buf[1] = '\0';
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if (ps->tty_major) /* tty field of "0" means "no tty" */
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snprintf(buf, size+1, "%u,%u", ps->tty_major, ps->tty_minor);
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2007-04-19 14:46:14 +00:00
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}
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2007-06-06 07:40:16 +00:00
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#if ENABLE_SELINUX
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static void func_label(char *buf, int size, const procps_status_t *ps)
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{
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safe_strncpy(buf, ps->context ? ps->context : "unknown", size+1);
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}
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#endif
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2006-11-05 00:45:47 +00:00
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/*
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2007-04-19 14:46:14 +00:00
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static void func_nice(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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ps->???
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}
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2007-04-19 14:46:14 +00:00
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static void func_etime(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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elapled time [[dd-]hh:]mm:ss
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}
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2007-04-19 14:46:14 +00:00
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static void func_time(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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cumulative time [[dd-]hh:]mm:ss
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}
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2007-04-19 14:46:14 +00:00
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static void func_pcpu(char *buf, int size, const procps_status_t *ps)
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2006-11-05 00:45:47 +00:00
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{
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}
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*/
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typedef struct {
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2007-04-19 14:46:14 +00:00
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uint16_t width;
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char name[6];
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2006-11-05 00:45:47 +00:00
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const char *header;
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void (*f)(char *buf, int size, const procps_status_t *ps);
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int ps_flags;
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} ps_out_t;
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static const ps_out_t out_spec[] = {
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// Mandated by POSIX:
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2007-06-30 14:47:41 +00:00
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{ 8 , "user" ,"USER" ,func_user ,PSSCAN_UIDGID },
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{ 16 , "comm" ,"COMMAND",func_comm ,PSSCAN_COMM },
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{ 256 , "args" ,"COMMAND",func_args ,PSSCAN_COMM },
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{ 5 , "pid" ,"PID" ,func_pid ,PSSCAN_PID },
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{ 5 , "ppid" ,"PPID" ,func_ppid ,PSSCAN_PPID },
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{ 5 , "pgid" ,"PGID" ,func_pgid ,PSSCAN_PGID },
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// { sizeof("ELAPSED")-1, "etime" ,"ELAPSED",func_etime ,PSSCAN_ },
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// { sizeof("GROUP" )-1, "group" ,"GROUP" ,func_group ,PSSCAN_UIDGID },
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// { sizeof("NI" )-1, "nice" ,"NI" ,func_nice ,PSSCAN_ },
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// { sizeof("%CPU" )-1, "pcpu" ,"%CPU" ,func_pcpu ,PSSCAN_ },
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// { sizeof("RGROUP" )-1, "rgroup","RGROUP" ,func_rgroup,PSSCAN_UIDGID },
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// { sizeof("RUSER" )-1, "ruser" ,"RUSER" ,func_ruser ,PSSCAN_UIDGID },
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// { sizeof("TIME" )-1, "time" ,"TIME" ,func_time ,PSSCAN_ },
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{ 6 , "tty" ,"TT" ,func_tty ,PSSCAN_TTY },
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{ 4 , "vsz" ,"VSZ" ,func_vsz ,PSSCAN_VSZ },
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2007-04-19 14:46:14 +00:00
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// Not mandated by POSIX, but useful:
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2007-06-30 14:47:41 +00:00
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{ 4 , "rss" ,"RSS" ,func_rss ,PSSCAN_RSS },
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2007-06-06 07:40:16 +00:00
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#if ENABLE_SELINUX
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2007-06-30 14:47:41 +00:00
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{ 35 , "label" ,"LABEL" ,func_label ,PSSCAN_CONTEXT },
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2007-06-06 07:40:16 +00:00
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#endif
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2006-11-05 00:45:47 +00:00
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};
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2007-06-06 07:40:16 +00:00
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#if ENABLE_SELINUX
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#define SELINIX_O_PREFIX "label,"
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#define DEFAULT_O_STR SELINIX_O_PREFIX "pid,user" /* TODO: ,vsz,stat */ ",args"
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#else
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#define DEFAULT_O_STR "pid,user" /* TODO: ,vsz,stat */ ",args"
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#endif
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2006-11-05 00:45:47 +00:00
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2007-04-19 14:47:11 +00:00
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struct globals {
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ps_out_t* out;
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int out_cnt;
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int print_header;
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int need_flags;
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char *buffer;
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unsigned terminal_width;
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char default_o[sizeof(DEFAULT_O_STR)];
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};
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define out (G.out )
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#define out_cnt (G.out_cnt )
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#define print_header (G.print_header )
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#define need_flags (G.need_flags )
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#define buffer (G.buffer )
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#define terminal_width (G.terminal_width)
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#define default_o (G.default_o )
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2006-11-05 00:45:47 +00:00
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static ps_out_t* new_out_t(void)
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{
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int i = out_cnt++;
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out = xrealloc(out, out_cnt * sizeof(*out));
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return &out[i];
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}
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static const ps_out_t* find_out_spec(const char *name)
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{
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int i;
|
2007-06-25 10:55:35 +00:00
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for (i = 0; i < ARRAY_SIZE(out_spec); i++) {
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2006-11-05 00:45:47 +00:00
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if (!strcmp(name, out_spec[i].name))
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return &out_spec[i];
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}
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bb_error_msg_and_die("bad -o argument '%s'", name);
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}
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static void parse_o(char* opt)
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{
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ps_out_t* new;
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// POSIX: "-o is blank- or comma-separated list" (FIXME)
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char *comma, *equal;
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while (1) {
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comma = strchr(opt, ',');
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equal = strchr(opt, '=');
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if (comma && (!equal || equal > comma)) {
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*comma = '\0';
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*new_out_t() = *find_out_spec(opt);
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*comma = ',';
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opt = comma + 1;
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continue;
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}
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break;
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}
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2007-04-19 14:46:14 +00:00
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// opt points to last spec in comma separated list.
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// This one can have =HEADER part.
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2006-11-05 00:45:47 +00:00
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new = new_out_t();
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if (equal)
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*equal = '\0';
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*new = *find_out_spec(opt);
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if (equal) {
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*equal = '=';
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new->header = equal + 1;
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// POSIX: the field widths shall be ... at least as wide as
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// the header text (default or overridden value).
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// If the header text is null, such as -o user=,
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// the field width shall be at least as wide as the
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// default header text
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if (new->header[0]) {
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new->width = strlen(new->header);
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print_header = 1;
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}
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} else
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print_header = 1;
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}
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static void post_process(void)
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{
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int i;
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int width = 0;
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for (i = 0; i < out_cnt; i++) {
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2007-04-19 14:47:11 +00:00
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need_flags |= out[i].ps_flags;
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2006-11-05 00:45:47 +00:00
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if (out[i].header[0]) {
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print_header = 1;
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}
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width += out[i].width + 1; /* "FIELD " */
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}
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2007-06-06 07:40:16 +00:00
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#if ENABLE_SELINUX
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if (!is_selinux_enabled())
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need_flags &= ~PSSCAN_CONTEXT;
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#endif
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2006-11-05 00:45:47 +00:00
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buffer = xmalloc(width + 1); /* for trailing \0 */
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}
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static void format_header(void)
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{
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int i;
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ps_out_t* op;
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2007-04-19 14:46:14 +00:00
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char *p;
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2006-11-05 00:45:47 +00:00
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if (!print_header)
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return;
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2007-04-19 14:46:14 +00:00
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p = buffer;
|
2006-11-05 00:45:47 +00:00
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i = 0;
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if (out_cnt) {
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while (1) {
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op = &out[i];
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if (++i == out_cnt) /* do not pad last field */
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break;
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p += sprintf(p, "%-*s ", op->width, op->header);
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}
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strcpy(p, op->header);
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}
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printf("%.*s\n", terminal_width, buffer);
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}
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static void format_process(const procps_status_t *ps)
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{
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int i, len;
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char *p = buffer;
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i = 0;
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if (out_cnt) while (1) {
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out[i].f(p, out[i].width, ps);
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// POSIX: Any field need not be meaningful in all
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// implementations. In such a case a hyphen ( '-' )
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// should be output in place of the field value.
|
2006-12-18 14:20:01 +00:00
|
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|
if (!p[0]) {
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p[0] = '-';
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p[1] = '\0';
|
2006-11-05 00:45:47 +00:00
|
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}
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len = strlen(p);
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p += len;
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len = out[i].width - len + 1;
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if (++i == out_cnt) /* do not pad last field */
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break;
|
2006-12-18 14:20:01 +00:00
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|
p += sprintf(p, "%*s", len, "");
|
2006-11-05 00:45:47 +00:00
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}
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|
printf("%.*s\n", terminal_width, buffer);
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}
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|
|
|
|
2007-10-11 10:05:36 +00:00
|
|
|
int ps_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
2006-11-05 00:45:47 +00:00
|
|
|
int ps_main(int argc, char **argv)
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|
|
|
{
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|
|
|
procps_status_t *p;
|
|
|
|
llist_t* opt_o = NULL;
|
2007-06-06 07:40:16 +00:00
|
|
|
USE_SELINUX(int opt;)
|
2007-04-19 14:47:11 +00:00
|
|
|
|
2006-11-05 00:45:47 +00:00
|
|
|
// POSIX:
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|
|
// -a Write information for all processes associated with terminals
|
|
|
|
// Implementations may omit session leaders from this list
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|
// -A Write information for all processes
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|
// -d Write information for all processes, except session leaders
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|
|
|
// -e Write information for all processes (equivalent to -A.)
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|
|
|
// -f Generate a full listing
|
|
|
|
// -l Generate a long listing
|
|
|
|
// -o col1,col2,col3=header
|
2007-04-19 14:46:14 +00:00
|
|
|
// Select which columns to display
|
2006-11-05 00:45:47 +00:00
|
|
|
/* We allow (and ignore) most of the above. FIXME */
|
|
|
|
opt_complementary = "o::";
|
2007-08-18 15:32:12 +00:00
|
|
|
USE_SELINUX(opt =) getopt32(argv, "Zo:aAdefl", &opt_o);
|
2006-11-05 00:45:47 +00:00
|
|
|
if (opt_o) {
|
|
|
|
do {
|
|
|
|
parse_o(opt_o->data);
|
|
|
|
opt_o = opt_o->link;
|
|
|
|
} while (opt_o);
|
2007-06-06 07:40:16 +00:00
|
|
|
} else {
|
|
|
|
/* Below: parse_o() needs char*, NOT const char*... */
|
|
|
|
#if ENABLE_SELINUX
|
|
|
|
if (!(opt & 1) || !is_selinux_enabled()) {
|
|
|
|
/* no -Z or no SELinux: do not show LABEL */
|
|
|
|
strcpy(default_o, DEFAULT_O_STR + sizeof(SELINIX_O_PREFIX)-1);
|
|
|
|
} else
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
strcpy(default_o, DEFAULT_O_STR);
|
|
|
|
}
|
2006-11-05 00:45:47 +00:00
|
|
|
parse_o(default_o);
|
2007-06-06 07:40:16 +00:00
|
|
|
}
|
2006-11-05 00:45:47 +00:00
|
|
|
post_process();
|
|
|
|
|
2007-03-28 21:57:12 +00:00
|
|
|
/* Was INT_MAX, but some libc's go belly up with printf("%.*s")
|
|
|
|
* and such large widths */
|
2007-07-25 17:27:58 +00:00
|
|
|
terminal_width = MAX_WIDTH;
|
2006-11-05 00:45:47 +00:00
|
|
|
if (isatty(1)) {
|
2007-08-09 08:27:24 +00:00
|
|
|
get_terminal_width_height(0, &terminal_width, NULL);
|
2007-07-25 17:27:58 +00:00
|
|
|
if (--terminal_width > MAX_WIDTH)
|
|
|
|
terminal_width = MAX_WIDTH;
|
2006-11-05 00:45:47 +00:00
|
|
|
}
|
|
|
|
format_header();
|
|
|
|
|
|
|
|
p = NULL;
|
2007-04-19 14:47:11 +00:00
|
|
|
while ((p = procps_scan(p, need_flags))) {
|
2006-11-05 00:45:47 +00:00
|
|
|
format_process(p);
|
|
|
|
}
|
|
|
|
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#else /* !ENABLE_DESKTOP */
|
|
|
|
|
|
|
|
|
2007-10-11 10:05:36 +00:00
|
|
|
int ps_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
2006-03-06 20:47:33 +00:00
|
|
|
int ps_main(int argc, char **argv)
|
1999-10-20 08:05:35 +00:00
|
|
|
{
|
2006-11-05 00:43:51 +00:00
|
|
|
procps_status_t *p = NULL;
|
2007-07-01 14:53:06 +00:00
|
|
|
int len;
|
2006-11-01 09:14:52 +00:00
|
|
|
SKIP_SELINUX(const) int use_selinux = 0;
|
2007-07-01 14:53:06 +00:00
|
|
|
USE_SELINUX(int i;)
|
2006-11-01 09:14:52 +00:00
|
|
|
#if !ENABLE_FEATURE_PS_WIDE
|
|
|
|
enum { terminal_width = 79 };
|
|
|
|
#else
|
2005-10-04 16:48:26 +00:00
|
|
|
int terminal_width;
|
|
|
|
int w_count = 0;
|
|
|
|
#endif
|
2005-10-04 14:31:18 +00:00
|
|
|
|
|
|
|
#if ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX
|
2005-10-04 16:48:26 +00:00
|
|
|
#if ENABLE_FEATURE_PS_WIDE
|
2006-11-01 09:14:52 +00:00
|
|
|
opt_complementary = "-:ww";
|
2007-08-18 15:32:12 +00:00
|
|
|
USE_SELINUX(i =) getopt32(argv, USE_SELINUX("Z") "w", &w_count);
|
2005-10-04 16:48:26 +00:00
|
|
|
/* if w is given once, GNU ps sets the width to 132,
|
|
|
|
* if w is given more than once, it is "unlimited"
|
|
|
|
*/
|
2006-10-27 09:03:24 +00:00
|
|
|
if (w_count) {
|
2007-07-25 17:27:58 +00:00
|
|
|
terminal_width = (w_count==1) ? 132 : MAX_WIDTH;
|
2005-10-04 16:48:26 +00:00
|
|
|
} else {
|
2007-08-09 08:27:24 +00:00
|
|
|
get_terminal_width_height(0, &terminal_width, NULL);
|
2005-10-04 16:48:26 +00:00
|
|
|
/* Go one less... */
|
2007-07-25 17:27:58 +00:00
|
|
|
if (--terminal_width > MAX_WIDTH)
|
|
|
|
terminal_width = MAX_WIDTH;
|
2005-10-04 14:31:18 +00:00
|
|
|
}
|
2006-11-01 09:14:52 +00:00
|
|
|
#else /* only ENABLE_SELINUX */
|
2007-08-18 15:32:12 +00:00
|
|
|
i = getopt32(argv, "Z");
|
2005-10-04 14:31:18 +00:00
|
|
|
#endif
|
2005-10-04 16:48:26 +00:00
|
|
|
#if ENABLE_SELINUX
|
2007-07-01 17:25:59 +00:00
|
|
|
if ((i & 1) && is_selinux_enabled())
|
2007-06-06 07:40:16 +00:00
|
|
|
use_selinux = PSSCAN_CONTEXT;
|
2005-10-04 16:48:26 +00:00
|
|
|
#endif
|
2006-11-01 09:14:52 +00:00
|
|
|
#endif /* ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX */
|
2005-10-04 14:31:18 +00:00
|
|
|
|
2005-05-03 06:25:50 +00:00
|
|
|
if (use_selinux)
|
2006-09-27 14:17:31 +00:00
|
|
|
puts(" PID Context Stat Command");
|
2003-07-03 10:07:04 +00:00
|
|
|
else
|
2007-02-08 08:21:58 +00:00
|
|
|
puts(" PID Uid VSZ Stat Command");
|
2000-02-08 19:58:47 +00:00
|
|
|
|
2006-11-05 00:43:51 +00:00
|
|
|
while ((p = procps_scan(p, 0
|
|
|
|
| PSSCAN_PID
|
|
|
|
| PSSCAN_UIDGID
|
|
|
|
| PSSCAN_STATE
|
2007-02-08 08:21:58 +00:00
|
|
|
| PSSCAN_VSZ
|
2007-06-30 14:47:41 +00:00
|
|
|
| PSSCAN_COMM
|
2007-06-06 07:40:16 +00:00
|
|
|
| use_selinux
|
2006-11-05 00:43:51 +00:00
|
|
|
))) {
|
2005-10-04 14:31:18 +00:00
|
|
|
#if ENABLE_SELINUX
|
2006-09-27 14:17:31 +00:00
|
|
|
if (use_selinux) {
|
2007-06-06 07:40:16 +00:00
|
|
|
len = printf("%5u %-32s %s ",
|
|
|
|
p->pid,
|
|
|
|
p->context ? p->context : "unknown",
|
|
|
|
p->state);
|
2006-11-01 10:25:35 +00:00
|
|
|
} else
|
2003-07-03 10:07:04 +00:00
|
|
|
#endif
|
2006-11-05 00:43:51 +00:00
|
|
|
{
|
|
|
|
const char *user = get_cached_username(p->uid);
|
2007-02-08 08:21:58 +00:00
|
|
|
if (p->vsz == 0)
|
2006-11-05 00:43:51 +00:00
|
|
|
len = printf("%5u %-8s %s ",
|
|
|
|
p->pid, user, p->state);
|
2006-09-27 14:17:31 +00:00
|
|
|
else
|
2007-08-29 18:23:36 +00:00
|
|
|
len = printf("%5u %-8s %6lu %s ",
|
2007-02-08 08:21:58 +00:00
|
|
|
p->pid, user, p->vsz, p->state);
|
2006-11-05 00:43:51 +00:00
|
|
|
}
|
2005-10-04 14:31:18 +00:00
|
|
|
|
2007-06-30 14:47:41 +00:00
|
|
|
{
|
2007-07-01 14:53:06 +00:00
|
|
|
int sz = terminal_width - len;
|
2007-06-30 14:47:41 +00:00
|
|
|
char buf[sz + 1];
|
|
|
|
read_cmdline(buf, sz, p->pid, p->comm);
|
|
|
|
puts(buf);
|
2000-02-08 19:58:47 +00:00
|
|
|
}
|
1999-10-20 19:18:15 +00:00
|
|
|
}
|
2006-11-05 00:43:51 +00:00
|
|
|
if (ENABLE_FEATURE_CLEAN_UP)
|
|
|
|
clear_username_cache();
|
2000-12-01 02:55:13 +00:00
|
|
|
return EXIT_SUCCESS;
|
1999-10-20 08:05:35 +00:00
|
|
|
}
|
2006-11-05 00:45:47 +00:00
|
|
|
|
2006-11-05 00:47:38 +00:00
|
|
|
#endif /* ENABLE_DESKTOP */
|