151 lines
3.6 KiB
C++
151 lines
3.6 KiB
C++
/* ps.cc
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Copyright 1996, 1997, 1998 Cygnus Solutions.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include <stdio.h>
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#include <time.h>
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#include <getopt.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <pwd.h>
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#include <sys/cygwin.h>
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#include "winsup.h"
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#include "external.h"
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static char *
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start_time (external_pinfo *child)
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{
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time_t st = child->start_time;
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time_t t = time (NULL);
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static char stime[40] = {'\0'};
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char now[40];
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strncpy (stime, ctime (&st) + 4, 15);
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strcpy (now, ctime (&t) + 4);
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if ((t - st) < (24 * 3600))
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return (stime + 7);
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stime[6] = '\0';
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return stime;
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}
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int
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main (int argc, char *argv[])
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{
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external_pinfo *p;
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int aflag, lflag, fflag, uid;
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const char *dtitle = " PID TTY STIME COMMAND\n";
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const char *dfmt = "%5d%4d%10s %s\n";
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const char *ftitle = " UID PID PPID TTY STIME COMMAND\n";
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const char *ffmt = "%8.8s%6d%6d%4d%10s %s\n";
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const char *ltitle = " PID PPID PGID WINPID UID TTY STIME COMMAND\n";
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const char *lfmt = "%c %5d %5d %5d %8u %4d %3d %8s %s\n";
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char ch;
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aflag = lflag = fflag = 0;
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uid = getuid ();
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while ((ch = getopt (argc, argv, "aelfu:")) != -1)
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switch (ch)
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{
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case 'a':
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case 'e':
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aflag = 1;
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break;
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case 'f':
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fflag = 1;
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break;
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case 'l':
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lflag = 1;
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break;
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case 'u':
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uid = atoi (optarg);
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if (uid == 0)
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{
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struct passwd *pw;
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if ((pw = getpwnam (optarg)))
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uid = pw->pw_uid;
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else
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{
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fprintf (stderr, "user %s unknown\n", optarg);
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exit (1);
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}
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}
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break;
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default:
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fprintf (stderr, "Usage %s [-aefl] [-u uid]\n", argv[0]);
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fprintf (stderr, "-f = show process uids, ppids\n");
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fprintf (stderr, "-l = show process uids, ppids, pgids, winpids\n");
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fprintf (stderr, "-u uid = list processes owned by uid\n");
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fprintf (stderr, "-a, -e = show processes of all users\n");
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exit (1);
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}
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if (lflag)
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printf (ltitle);
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else if (fflag)
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printf (ftitle);
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else
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printf (dtitle);
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(void) cygwin_internal (CW_LOCK_PINFO, 1000);
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for (int pid = 0;
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(p = (external_pinfo *) cygwin_internal (CW_GETPINFO,
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pid | CW_NEXTPID));
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pid = p->pid)
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{
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if (p->process_state == PID_NOT_IN_USE)
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continue;
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if (!aflag && p->uid != uid)
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continue;
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char status = ' ';
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if (p->process_state & PID_STOPPED)
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status = 'S';
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else if (p->process_state & PID_TTYIN)
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status = 'I';
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else if (p->process_state & PID_TTYOU)
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status = 'O';
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char pname[MAX_PATH];
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if (p->process_state & PID_ZOMBIE)
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strcpy (pname, "<defunct>");
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else
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cygwin_conv_to_posix_path (p->progname, pname);
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char uname[128];
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if (fflag)
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{
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struct passwd *pw;
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if ((pw = getpwuid (p->uid)))
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strcpy (uname, pw->pw_name);
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else
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sprintf (uname, "%d", p->uid);
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}
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if (lflag)
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printf (lfmt, status, p->pid, p->ppid, p->pgid,
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p->dwProcessId, p->uid, p->ctty, start_time (p), pname);
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else if (fflag)
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printf (ffmt, uname, p->pid, p->ppid, p->ctty, start_time (p), pname);
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else
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printf (dfmt, p->pid, p->ctty, start_time (p), pname);
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}
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(void) cygwin_internal (CW_UNLOCK_PINFO);
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return 0;
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}
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