From 4aca87515a5083ae0e31ce3177189fd43b6d05ac Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 3 Jan 2015 13:58:15 +0100 Subject: patch to Vanilla Tomato 1.28 --- release/src/router/busybox/ps.c | 266 ---------------------------------------- 1 file changed, 266 deletions(-) delete mode 100644 release/src/router/busybox/ps.c (limited to 'release/src/router/busybox/ps.c') 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 , - * - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#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 /* 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 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 */ - -- cgit v1.2.3-54-g00ecf