summaryrefslogtreecommitdiff
path: root/release/src/router/busybox/ps.c
diff options
context:
space:
mode:
Diffstat (limited to 'release/src/router/busybox/ps.c')
-rw-r--r--release/src/router/busybox/ps.c266
1 files changed, 0 insertions, 266 deletions
diff --git a/release/src/router/busybox/ps.c b/release/src/router/busybox/ps.c
deleted file mode 100644
index 9e96a540..00000000
--- a/release/src/router/busybox/ps.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Mini ps implementation(s) for busybox
- *
- * Copyright (C) 1999,2000,2001 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
- *
- *
- * 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+).
- *
- *
- *
- * 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
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <string.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include "busybox.h"
-
-static const int TERMINAL_WIDTH = 79; /* not 80 in case terminal has linefold bug */
-
-
-
-#if ! defined BB_FEATURE_USE_DEVPS_PATCH
-
-/* The following is the first ps implementation --
- * the one using the /proc virtual filesystem.
- */
-
-typedef struct proc_s {
- char
- cmd[16]; /* basename of executable file in call to exec(2) */
- int
- ruid, /* real only (sorry) */
- pid, /* process id */
- ppid; /* pid of parent process */
- char
- state; /* single-char code for process state (S=sleeping) */
-} proc_t;
-
-
-
-static int file2str(char *filename, char *ret, int cap)
-{
- int fd, num_read;
-
- if ((fd = open(filename, O_RDONLY, 0)) == -1)
- return -1;
- if ((num_read = read(fd, ret, cap - 1)) <= 0)
- return -1;
- ret[num_read] = 0;
- close(fd);
- return num_read;
-}
-
-
-static void parse_proc_status(char *S, proc_t * P)
-{
- char *tmp;
-
- memset(P->cmd, 0, sizeof P->cmd);
- sscanf(S, "Name:\t%15c", P->cmd);
- tmp = strchr(P->cmd, '\n');
- if (tmp)
- *tmp = '\0';
- tmp = strstr(S, "State");
- sscanf(tmp, "State:\t%c", &P->state);
-
- tmp = strstr(S, "Pid:");
- if (tmp)
- sscanf(tmp, "Pid:\t%d\n" "PPid:\t%d\n", &P->pid, &P->ppid);
- else
- error_msg("Internal error!");
-
- /* For busybox, ignoring effective, saved, etc. */
- tmp = strstr(S, "Uid:");
- if (tmp)
- sscanf(tmp, "Uid:\t%d", &P->ruid);
- else
- error_msg("Internal error!");
-
-
-}
-
-extern int ps_main(int argc, char **argv)
-{
- proc_t p;
- DIR *dir;
- FILE *file;
- struct dirent *entry;
- char path[32], sbuf[512];
- char uidName[9];
- int len, i, c;
-#ifdef BB_FEATURE_AUTOWIDTH
- struct winsize win = { 0, 0, 0, 0 };
- int terminal_width = TERMINAL_WIDTH;
-#else
-#define terminal_width TERMINAL_WIDTH
-#endif
-
-
-
- dir = opendir("/proc");
- if (!dir)
- error_msg_and_die("Can't open /proc");
-
-#ifdef BB_FEATURE_AUTOWIDTH
- ioctl(fileno(stdout), TIOCGWINSZ, &win);
- if (win.ws_col > 0)
- terminal_width = win.ws_col - 1;
-#endif
-
- printf(" PID Uid Stat Command\n");
- while ((entry = readdir(dir)) != NULL) {
- if (!isdigit(*entry->d_name))
- continue;
- sprintf(path, "/proc/%s/status", entry->d_name);
- if ((file2str(path, sbuf, sizeof sbuf)) != -1) {
- parse_proc_status(sbuf, &p);
- }
-
- /* Make some adjustments as needed */
- my_getpwuid(uidName, p.ruid);
- if (*uidName == '\0')
- sprintf(uidName, "%d", p.ruid);
-
- sprintf(path, "/proc/%s/cmdline", entry->d_name);
- file = fopen(path, "r");
- if (file == NULL)
- continue;
- i = 0;
- len = printf("%5d %-8s %c ", p.pid, uidName, p.state);
- while (((c = getc(file)) != EOF) && (i < (terminal_width-len))) {
- i++;
- if (c == '\0')
- c = ' ';
- putc(c, stdout);
- }
- fclose(file);
- if (i == 0)
- printf("[%s]", p.cmd);
- putchar('\n');
- }
- closedir(dir);
- return EXIT_SUCCESS;
-}
-
-
-#else /* BB_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 BB_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 BB_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 (*uidName == '\0')
- sprintf(uidName, "%ld", info.euid);
-
- len = printf("%5d %-8s %c ", info.pid, uidName, info.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 /* BB_FEATURE_USE_DEVPS_PATCH */
-
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-04-25 15:37:02 +0000