diff options
Diffstat (limited to 'busybox/procps')
| -rw-r--r-- | busybox/procps/Config.in | 82 | ||||
| -rw-r--r-- | busybox/procps/Makefile | 32 | ||||
| -rw-r--r-- | busybox/procps/Makefile.in | 43 | ||||
| -rw-r--r-- | busybox/procps/free.c | 84 | ||||
| -rw-r--r-- | busybox/procps/kill.c | 156 | ||||
| -rw-r--r-- | busybox/procps/pidof.c | 71 | ||||
| -rw-r--r-- | busybox/procps/ps.c | 109 | ||||
| -rw-r--r-- | busybox/procps/renice.c | 54 | ||||
| -rw-r--r-- | busybox/procps/sysctl.c | 352 | ||||
| -rw-r--r-- | busybox/procps/top.c | 592 | ||||
| -rw-r--r-- | busybox/procps/uptime.c | 75 |
11 files changed, 1650 insertions, 0 deletions
diff --git a/busybox/procps/Config.in b/busybox/procps/Config.in new file mode 100644 index 0000000..8d55797 --- /dev/null +++ b/busybox/procps/Config.in @@ -0,0 +1,82 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +menu "Process Utilities" + +config CONFIG_FREE + bool "free" + default n + help + free displays the total amount of free and used physical and swap + memory in the system, as well as the buffers used by the kernel. + The shared memory column should be ignored; it is obsolete. + +config CONFIG_KILL + bool "kill" + default n + help + The command kill sends the specified signal to the specified + process or process group. If no signal is specified, the TERM + signal is sent. + +config CONFIG_KILLALL + bool "killall" + default n + depends on CONFIG_KILL + help + killall sends a signal to all processes running any of the + specified commands. If no signal name is specified, SIGTERM is + sent. + +config CONFIG_PIDOF + bool "pidof" + default n + help + Pidof finds the process id's (pids) of the named programs. It prints + those id's on the standard output. + +config CONFIG_PS + bool "ps" + default n + help + ps gives a snapshot of the current processes. + +config CONFIG_RENICE + bool "renice" + default n + help + Renice alters the scheduling priority of one or more running + processes. + +config CONFIG_TOP + bool "top" + default n + help + The top program provides a dynamic real-time view of a running + system. + +config FEATURE_CPU_USAGE_PERCENTAGE + bool " Support showing CPU usage percentage (add 2k bytes)" + default y + depends on CONFIG_TOP + help + Make top display CPU usage. + +config CONFIG_UPTIME + bool "uptime" + default n + help + uptime gives a one line display of the current time, how long + the system has been running, how many users are currently logged + on, and the system load averages for the past 1, 5, and 15 minutes. + +config CONFIG_SYSCTL + bool "sysctl" + default n + help + sysctl - configure kernel parameters at runtime + +endmenu + diff --git a/busybox/procps/Makefile b/busybox/procps/Makefile new file mode 100644 index 0000000..1cc8804 --- /dev/null +++ b/busybox/procps/Makefile @@ -0,0 +1,32 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2004 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 +# + +top_srcdir=.. +top_builddir=.. +srcdir=$(top_srcdir)/procps +PROCPS_DIR:=./ +include $(top_builddir)/Rules.mak +include $(top_builddir)/.config +include Makefile.in +all: $(libraries-y) +-include $(top_builddir)/.depend + +clean: + rm -f *.o *.a $(AR_TARGET) + diff --git a/busybox/procps/Makefile.in b/busybox/procps/Makefile.in new file mode 100644 index 0000000..ced29a1 --- /dev/null +++ b/busybox/procps/Makefile.in @@ -0,0 +1,43 @@ +# Makefile for busybox +# +# Copyright (C) 1999-2004 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 +# + +PROCPS_AR:=procps.a +ifndef $(PROCPS_DIR) +PROCPS_DIR:=$(top_builddir)/procps/ +endif +srcdir=$(top_srcdir)/procps + +PROCPS-y:= +PROCPS-$(CONFIG_FREE) += free.o +PROCPS-$(CONFIG_KILL) += kill.o +PROCPS-$(CONFIG_PIDOF) += pidof.o +PROCPS-$(CONFIG_PS) += ps.o +PROCPS-$(CONFIG_RENICE) += renice.o +PROCPS-$(CONFIG_SYSCTL) += sysctl.o +PROCPS-$(CONFIG_TOP) += top.o +PROCPS-$(CONFIG_UPTIME) += uptime.o + +libraries-y+=$(PROCPS_DIR)$(PROCPS_AR) + +$(PROCPS_DIR)$(PROCPS_AR): $(patsubst %,$(PROCPS_DIR)%, $(PROCPS-y)) + $(AR) -ro $@ $(patsubst %,$(PROCPS_DIR)%, $(PROCPS-y)) + +$(PROCPS_DIR)%.o: $(srcdir)/%.c + $(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< + diff --git a/busybox/procps/free.c b/busybox/procps/free.c new file mode 100644 index 0000000..4fb047d --- /dev/null +++ b/busybox/procps/free.c @@ -0,0 +1,84 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini free implementation for busybox + * + * Copyright (C) 1999-2004 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 + * + */ + +/* getopt not needed */ + +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include "busybox.h" + +extern int free_main(int argc, char **argv) +{ + struct sysinfo info; + sysinfo(&info); + + /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */ + if (info.mem_unit==0) { + info.mem_unit=1; + } + if ( info.mem_unit == 1 ) { + info.mem_unit=1024; + + /* TODO: Make all this stuff not overflow when mem >= 4 Gib */ + info.totalram/=info.mem_unit; + info.freeram/=info.mem_unit; +#ifndef __uClinux__ + info.totalswap/=info.mem_unit; + info.freeswap/=info.mem_unit; +#endif + info.sharedram/=info.mem_unit; + info.bufferram/=info.mem_unit; + } else { + info.mem_unit/=1024; + /* TODO: Make all this stuff not overflow when mem >= 4 Gib */ + info.totalram*=info.mem_unit; + info.freeram*=info.mem_unit; +#ifndef __uClinux__ + info.totalswap*=info.mem_unit; + info.freeswap*=info.mem_unit; +#endif + info.sharedram*=info.mem_unit; + info.bufferram*=info.mem_unit; + } + + if (argc > 1 && **(argv + 1) == '-') + bb_show_usage(); + + printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free", + "shared", "buffers"); + + printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram, + info.totalram-info.freeram, info.freeram, + info.sharedram, info.bufferram); + +#ifndef __uClinux__ + printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap, + info.totalswap-info.freeswap, info.freeswap); + + printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap, + (info.totalram-info.freeram)+(info.totalswap-info.freeswap), + info.freeram+info.freeswap); +#endif + return EXIT_SUCCESS; +} + diff --git a/busybox/procps/kill.c b/busybox/procps/kill.c new file mode 100644 index 0000000..25a8d01 --- /dev/null +++ b/busybox/procps/kill.c @@ -0,0 +1,156 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini kill/killall implementation for busybox + * + * Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>. + * Copyright (C) 1999-2004 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 + * + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <unistd.h> +#include <signal.h> +#include <ctype.h> +#include <string.h> +#include <unistd.h> +#include "busybox.h" + +#define KILL 0 +#define KILLALL 1 + +extern int kill_main(int argc, char **argv) +{ + int whichApp, signo = SIGTERM; + const char *name; + int errors = 0; + +#ifdef CONFIG_KILLALL + int quiet=0; + /* Figure out what we are trying to do here */ + whichApp = (strcmp(bb_applet_name, "killall") == 0)? KILLALL : KILL; +#else + whichApp = KILL; +#endif + + /* Parse any options */ + if (argc < 2) + bb_show_usage(); + + if(argv[1][0] != '-'){ + argv++; + argc--; + goto do_it_now; + } + + /* The -l option, which prints out signal names. */ + if(argv[1][1]=='l' && argv[1][2]=='\0'){ + if(argc==2) { + /* Print the whole signal list */ + int col = 0; + for(signo=1; signo < NSIG; signo++) { + name = u_signal_names(0, &signo, 1); + if(name==NULL) /* unnamed */ + continue; + col += printf("%2d) %-16s", signo, name); + if (col > 60) { + printf("\n"); + col = 0; + } + } + printf("\n"); + + } else { + for(argv++; *argv; argv++) { + name = u_signal_names(*argv, &signo, -1); + if(name!=NULL) + printf("%s\n", name); + } + } + /* If they specified -l, were all done */ + return EXIT_SUCCESS; + } + +#ifdef CONFIG_KILLALL + /* The -q quiet option */ + if(argv[1][1]=='q' && argv[1][2]=='\0'){ + quiet++; + argv++; + argc--; + if(argc<2 || argv[1][0] != '-'){ + goto do_it_now; + } + } +#endif + + if(!u_signal_names(argv[1]+1, &signo, 0)) + bb_error_msg_and_die( "bad signal name '%s'", argv[1]+1); + argv+=2; + argc-=2; + +do_it_now: + + if (whichApp == KILL) { + /* Looks like they want to do a kill. Do that */ + while (--argc >= 0) { + int pid; + + if (!isdigit(**argv)) + bb_error_msg_and_die( "Bad PID '%s'", *argv); + pid = strtol(*argv, NULL, 0); + if (kill(pid, signo) != 0) { + bb_perror_msg( "Could not kill pid '%d'", pid); + errors++; + } + argv++; + } + + } +#ifdef CONFIG_KILLALL + else { + pid_t myPid=getpid(); + /* Looks like they want to do a killall. Do that */ + while (--argc >= 0) { + long* pidList; + + pidList = find_pid_by_name(*argv); + if (!pidList || *pidList<=0) { + errors++; + if (quiet==0) + bb_error_msg( "%s: no process killed", *argv); + } else { + long *pl; + + for(pl = pidList; *pl !=0 ; pl++) { + if (*pl==myPid) + continue; + if (kill(*pl, signo) != 0) { + errors++; + if (quiet==0) + bb_perror_msg( "Could not kill pid '%ld'", *pl); + } + } + } + free(pidList); + argv++; + } + } +#endif + return errors; +} diff --git a/busybox/procps/pidof.c b/busybox/procps/pidof.c new file mode 100644 index 0000000..413864a --- /dev/null +++ b/busybox/procps/pidof.c @@ -0,0 +1,71 @@ +/* vi: set sw=4 ts=4: */ +/* + * pidof implementation for busybox + * + * Copyright (C) 1999-2004 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 + * + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <unistd.h> +#include <signal.h> +#include <ctype.h> +#include <string.h> +#include <unistd.h> +#include "busybox.h" + + +extern int pidof_main(int argc, char **argv) +{ + int opt, n = 0; + int single_flag = 0; + int fail = 1; + + /* do normal option parsing */ + while ((opt = getopt(argc, argv, "s")) > 0) { + switch (opt) { + case 's': + single_flag = 1; + break; + default: + bb_show_usage(); + } + } + + /* Looks like everything is set to go. */ + while(optind < argc) { + long *pidList; + long *pl; + + pidList = find_pid_by_name(argv[optind]); + for(pl = pidList; *pl > 0; pl++) { + printf("%s%ld", (n++ ? " " : ""), *pl); + fail = 0; + if (single_flag) + break; + } + free(pidList); + optind++; + + } + printf("\n"); + + return fail ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/busybox/procps/ps.c b/busybox/procps/ps.c new file mode 100644 index 0000000..0b60331 --- /dev/null +++ b/busybox/procps/ps.c @@ -0,0 +1,109 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini ps implementation(s) for busybox + * + * Copyright (C) 1999-2004 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 + */ + +#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" +#ifdef CONFIG_SELINUX +#include <fs_secure.h> +#include <ss.h> +#include <flask_util.h> /* for is_flask_enabled() */ +#endif + +static const int TERMINAL_WIDTH = 79; /* not 80 in case terminal has linefold bug */ + + + +extern int ps_main(int argc, char **argv) +{ + procps_status_t * p; + int i, len; + int terminal_width = TERMINAL_WIDTH; + +#ifdef CONFIG_SELINUX + int use_selinux = 0; + security_id_t sid; + if(is_flask_enabled() && argv[1] && !strcmp(argv[1], "-c") ) + use_selinux = 1; +#endif + + get_terminal_width_height(0, &terminal_width, NULL); + /* Go one less... */ + terminal_width--; + +#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) { +#else + while ((p = procps_scan(1)) != 0) { +#endif + char *namecmd = p->cmd; + +#ifdef CONFIG_SELINUX + if(use_selinux) + { + char sbuf[128]; + len = sizeof(sbuf); + if(security_sid_to_context(sid, (security_context_t)&sbuf, &len)) + strcpy(sbuf, "unknown"); + + 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); + i = terminal_width-len; + + if(namecmd != 0 && namecmd[0] != 0) { + if(i < 0) + i = 0; + if(strlen(namecmd) > i) + namecmd[i] = 0; + printf("%s\n", namecmd); + } else { + namecmd = p->short_cmd; + if(i < 2) + i = 2; + if(strlen(namecmd) > (i-2)) + namecmd[i-2] = 0; + printf("[%s]\n", namecmd); + } + free(p->cmd); + } + return EXIT_SUCCESS; +} + diff --git a/busybox/procps/renice.c b/busybox/procps/renice.c new file mode 100644 index 0000000..a6f0820 --- /dev/null +++ b/busybox/procps/renice.c @@ -0,0 +1,54 @@ +/* + * Mini renice implementation for busybox + * + * + * Copyright (C) 2000 Dave 'Kill a Cop' Cinege <dcinege@psychosis.com> + * + * 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 <errno.h> +#include <stdlib.h> +#include <sys/time.h> +#include <sys/resource.h> +#include "busybox.h" + + +extern int renice_main(int argc, char **argv) +{ + int prio, status = EXIT_SUCCESS; + + if (argc < 3) bb_show_usage(); + + prio = atoi(*++argv); + if (prio > 20) prio = 20; + if (prio < -20) prio = -20; + + while (*++argv) { + int ps = atoi(*argv); + int oldp = getpriority(PRIO_PROCESS, ps); + + if (setpriority(PRIO_PROCESS, ps, prio) == 0) { + printf("%d: old priority %d, new priority %d\n", ps, oldp, prio ); + } else { + bb_perror_msg("%d: setpriority", ps); + status = EXIT_FAILURE; + } + } + + return status; +} diff --git a/busybox/procps/sysctl.c b/busybox/procps/sysctl.c new file mode 100644 index 0000000..359dcc0 --- /dev/null +++ b/busybox/procps/sysctl.c @@ -0,0 +1,352 @@ + +/* + * Sysctl 1.01 - A utility to read and manipulate the sysctl parameters + * + * + * "Copyright 1999 George Staikos + * This file may be used subject to the terms and conditions of the + * GNU General Public License Version 2, or any later version + * at your option, as published by the Free Software Foundation. + * 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." + * + * Changelog: + * v1.01: + * - added -p <preload> to preload values from a file + * v1.01.1 + * - busybox applet aware by <solar@gentoo.org> + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <dirent.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include "busybox.h" + +/* + * Function Prototypes + */ +static int sysctl_read_setting(const char *setting, int output); +static int sysctl_write_setting(const char *setting, int output); +static int sysctl_preload_file(const char *filename, int output); +static int sysctl_display_all(const char *path, int output, int show_table); + +/* + * Globals... + */ +static const char PROC_PATH[] = "/proc/sys/"; +static const char DEFAULT_PRELOAD[] = "/etc/sysctl.conf"; + +/* error messages */ +static const char ERR_UNKNOWN_PARAMETER[] = "error: Unknown parameter '%s'\n"; +static const char ERR_MALFORMED_SETTING[] = "error: Malformed setting '%s'\n"; +static const char ERR_NO_EQUALS[] = + "error: '%s' must be of the form name=value\n"; +static const char ERR_INVALID_KEY[] = "error: '%s' is an unknown key\n"; +static const char ERR_UNKNOWN_WRITING[] = + "error: unknown error %d setting key '%s'\n"; +static const char ERR_UNKNOWN_READING[] = + "error: unknown error %d reading key '%s'\n"; +static const char ERR_PERMISSION_DENIED[] = + "error: permission denied on key '%s'\n"; +static const char ERR_OPENING_DIR[] = "error: unable to open directory '%s'\n"; +static const char ERR_PRELOAD_FILE[] = + "error: unable to open preload file '%s'\n"; +static const char WARN_BAD_LINE[] = + "warning: %s(%d): invalid syntax, continuing...\n"; + + +static void dwrite_str(int fd, const char *buf) +{ + write(fd, buf, strlen(buf)); +} + +/* + * sysctl_main()... + */ +int sysctl_main(int argc, char **argv) +{ + int retval = 0; + int output = 1; + int write_mode = 0; + int switches_allowed = 1; + + if (argc < 2) + bb_show_usage(); + + argv++; + + for (; argv && *argv && **argv; argv++) { + if (switches_allowed && **argv == '-') { /* we have a switch */ + switch ((*argv)[1]) { + case 'n': + output = 0; + break; + case 'w': + write_mode = 1; + switches_allowed = 0; + break; + case 'p': + argv++; + return + sysctl_preload_file(((argv && *argv + && **argv) ? *argv : + DEFAULT_PRELOAD), output); + case 'a': + case 'A': + switches_allowed = 0; + return sysctl_display_all(PROC_PATH, output, + ((*argv)[1] == 'a') ? 0 : 1); + case 'h': + case '?': + bb_show_usage(); + default: + bb_error_msg(ERR_UNKNOWN_PARAMETER, *argv); + bb_show_usage(); + } + } else { + switches_allowed = 0; + if (write_mode) + retval = sysctl_write_setting(*argv, output); + else + sysctl_read_setting(*argv, output); + } + } + return retval; +} /* end sysctl_main() */ + + + +/* + * sysctl_preload_file + * preload the sysctl's from a conf file + * - we parse the file and then reform it (strip out whitespace) + */ +#define PRELOAD_BUF 256 + +int sysctl_preload_file(const char *filename, int output) +{ + int lineno = 0; + char oneline[PRELOAD_BUF]; + char buffer[PRELOAD_BUF]; + char *name, *value, *ptr; + FILE *fp = NULL; + + if (!filename || ((fp = fopen(filename, "r")) == NULL)) { + bb_error_msg_and_die(ERR_PRELOAD_FILE, filename); + } + + while (fgets(oneline, sizeof(oneline) - 1, fp)) { + oneline[sizeof(oneline) - 1] = 0; + lineno++; + trim(oneline); + ptr = (char *) oneline; + + if (*ptr == '#' || *ptr == ';') + continue; + + if (bb_strlen(ptr) < 2) + continue; + + name = strtok(ptr, "="); + if (!name || !*name) { + bb_error_msg(WARN_BAD_LINE, filename, lineno); + continue; + } + + trim(name); + + value = strtok(NULL, "\n\r"); + if (!value || !*value) { + bb_error_msg(WARN_BAD_LINE, filename, lineno); + continue; + } + + while ((*value == ' ' || *value == '\t') && *value != 0) + value++; + strcpy(buffer, name); + strcat(buffer, "="); + strcat(buffer, value); + sysctl_write_setting(buffer, output); + } + fclose(fp); + return 0; +} /* end sysctl_preload_file() */ + + +/* + * Write a single sysctl setting + */ +int sysctl_write_setting(const char *setting, int output) +{ + int retval = 0; + const char *name = setting; + const char *value; + const char *equals; + char *tmpname, *outname, *cptr; + int fd = -1; + + if (!name) /* probably dont' want to display this err */ + return 0; + + if (!(equals = strchr(setting, '='))) { + bb_error_msg(ERR_NO_EQUALS, setting); + return -1; + } + + value = equals + sizeof(char); /* point to the value in name=value */ + + if (!*name || !*value || name == equals) { + bb_error_msg(ERR_MALFORMED_SETTING, setting); + return -2; + } + + bb_xasprintf(&tmpname, "%s%.*s", PROC_PATH, (equals - name), name); + outname = bb_xstrdup(tmpname + strlen(PROC_PATH)); + + while ((cptr = strchr(tmpname, '.')) != NULL) + *cptr = '/'; + + while ((cptr = strchr(outname, '/')) != NULL) + *cptr = '.'; + + if ((fd = open(tmpname, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0) { + switch (errno) { + case ENOENT: + bb_error_msg(ERR_INVALID_KEY, outname); + break; + case EACCES: + bb_perror_msg(ERR_PERMISSION_DENIED, outname); + break; + default: + bb_error_msg(ERR_UNKNOWN_WRITING, errno, outname); + break; + } + retval = -1; + } else { + dwrite_str(fd, value); + close(fd); + if (output) { + dwrite_str(STDOUT_FILENO, outname); + dwrite_str(STDOUT_FILENO, " = "); + } + dwrite_str(STDOUT_FILENO, value); + dwrite_str(STDOUT_FILENO, "\n"); + } + + /* cleanup */ + free(tmpname); + free(outname); + return retval; +} /* end sysctl_write_setting() */ + + +/* + * Read a sysctl setting + * + */ +int sysctl_read_setting(const char *setting, int output) +{ + int retval = 0; + char *tmpname, *outname, *cptr; + char inbuf[1025]; + const char *name = setting; + FILE *fp; + + if (!setting || !*setting) + bb_error_msg(ERR_INVALID_KEY, setting); + + tmpname = concat_path_file(PROC_PATH, name); + outname = bb_xstrdup(tmpname + strlen(PROC_PATH)); + + while ((cptr = strchr(tmpname, '.')) != NULL) + *cptr = '/'; + while ((cptr = strchr(outname, '/')) != NULL) + *cptr = '.'; + + if ((fp = fopen(tmpname, "r")) == NULL) { + switch (errno) { + case ENOENT: + bb_error_msg(ERR_INVALID_KEY, outname); + break; + case EACCES: + bb_error_msg(ERR_PERMISSION_DENIED, outname); + break; + default: + bb_error_msg(ERR_UNKNOWN_READING, errno, outname); + break; + } + retval = -1; + } else { + while (fgets(inbuf, sizeof(inbuf) - 1, fp)) { + if (output) { + dwrite_str(STDOUT_FILENO, outname); + dwrite_str(STDOUT_FILENO, " = "); + } + dwrite_str(STDOUT_FILENO, inbuf); + } + fclose(fp); + } + + free(tmpname); + free(outname); + return retval; +} /* end sysctl_read_setting() */ + + + +/* + * Display all the sysctl settings + * + */ +int sysctl_display_all(const char *path, int output, int show_table) +{ + int retval = 0; + int retval2; + DIR *dp; + struct dirent *de; + char *tmpdir; + struct stat ts; + + if (!(dp = opendir(path))) { + bb_perror_msg(ERR_OPENING_DIR, path); + retval = -1; + } else { + while ((de = readdir(dp)) != NULL) { + tmpdir = concat_subpath_file(path, de->d_name); + if(tmpdir == NULL) + continue; + if ((retval2 = stat(tmpdir, &ts)) != 0) + bb_perror_msg(tmpdir); + else { + if (S_ISDIR(ts.st_mode)) { + sysctl_display_all(tmpdir, output, show_table); + } else + retval |= + sysctl_read_setting(tmpdir + bb_strlen(PROC_PATH), + output); + + } + free(tmpdir); + } /* end while */ + closedir(dp); + } + + return retval; +} /* end sysctl_display_all() */ + +#ifdef STANDALONE_SYSCTL +int main(int argc, char **argv) +{ + return sysctl_main(argc, argv); +} +const char *bb_applet_name = "sysctl"; +#endif diff --git a/busybox/procps/top.c b/busybox/procps/top.c new file mode 100644 index 0000000..5963c35 --- /dev/null +++ b/busybox/procps/top.c @@ -0,0 +1,592 @@ +/* + * A tiny 'top' utility. + * + * This is written specifically for the linux /proc/<PID>/stat(m) + * files format. + + * This reads the PIDs of all processes and their status and shows + * the status of processes (first ones that fit to screen) at given + * intervals. + * + * NOTES: + * - At startup this changes to /proc, all the reads are then + * relative to that. + * + * (C) Eero Tamminen <oak at welho dot com> + * + * Rewritten by Vladimir Oleynik (C) 2002 <dzo@simtreas.ru> + */ + +/* Original code Copyrights */ +/* + * Copyright (c) 1992 Branko Lankester + * Copyright (c) 1992 Roger Binns + * Copyright (C) 1994-1996 Charles L. Blake. + * Copyright (C) 1992-1998 Michael K. Johnson + * May be distributed under the conditions of the + * GNU Library General Public License + */ + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sys/ioctl.h> +/* get page info */ +#include <asm/page.h> +#include "busybox.h" + +//#define FEATURE_CPU_USAGE_PERCENTAGE /* + 2k */ + +#ifdef FEATURE_CPU_USAGE_PERCENTAGE +#include <time.h> +#include <sys/time.h> +#include <fcntl.h> +#include <netinet/in.h> /* htons */ +#endif + + +typedef int (*cmp_t)(procps_status_t *P, procps_status_t *Q); + +static procps_status_t *top; /* Hehe */ +static int ntop; + + +static int pid_sort (procps_status_t *P, procps_status_t *Q) +{ + return (Q->pid - P->pid); +} + +static int mem_sort (procps_status_t *P, procps_status_t *Q) +{ + return (int)(Q->rss - P->rss); +} + +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + +#define sort_depth 3 +static cmp_t sort_function[sort_depth]; + +static int pcpu_sort (procps_status_t *P, procps_status_t *Q) +{ + return (Q->pcpu - P->pcpu); +} + +static int time_sort (procps_status_t *P, procps_status_t *Q) +{ + return (int)((Q->stime + Q->utime) - (P->stime + P->utime)); +} + +int mult_lvl_cmp(void* a, void* b) { + int i, cmp_val; + + for(i = 0; i < sort_depth; i++) { + cmp_val = (*sort_function[i])(a, b); + if (cmp_val != 0) + return cmp_val; + } + return 0; +} + +/* This structure stores some critical information from one frame to + the next. mostly used for sorting. Added cumulative and resident fields. */ +struct save_hist { + int ticks; + int pid; + int utime; + int stime; +}; + +/* + * Calculates percent cpu usage for each task. + */ + +static struct save_hist *save_history; + +static unsigned long Hertz; + +/*********************************************************************** + * Some values in /proc are expressed in units of 1/HZ seconds, where HZ + * is the kernel clock tick rate. One of these units is called a jiffy. + * The HZ value used in the kernel may vary according to hacker desire. + * According to Linus Torvalds, this is not true. He considers the values + * in /proc as being in architecture-dependent units that have no relation + * to the kernel clock tick rate. Examination of the kernel source code + * reveals that opinion as wishful thinking. + * + * In any case, we need the HZ constant as used in /proc. (the real HZ value + * may differ, but we don't care) There are several ways we could get HZ: + * + * 1. Include the kernel header file. If it changes, recompile this library. + * 2. Use the sysconf() function. When HZ changes, recompile the C library! + * 3. Ask the kernel. This is obviously correct... + * + * Linus Torvalds won't let us ask the kernel, because he thinks we should + * not know the HZ value. Oh well, we don't have to listen to him. + * Someone smuggled out the HZ value. :-) + * + * This code should work fine, even if Linus fixes the kernel to match his + * stated behavior. The code only fails in case of a partial conversion. + * + */ + +#define FILE_TO_BUF(filename, fd) do{ \ + if (fd == -1 && (fd = open(filename, O_RDONLY)) == -1) { \ + bb_perror_msg_and_die("/proc not be mounted?"); \ + } \ + lseek(fd, 0L, SEEK_SET); \ + if ((local_n = read(fd, buf, sizeof buf - 1)) < 0) { \ + bb_perror_msg_and_die("%s", filename); \ + } \ + buf[local_n] = '\0'; \ +}while(0) + +#define FILE_TO_BUF2(filename, fd) do{ \ + lseek(fd, 0L, SEEK_SET); \ + if ((local_n = read(fd, buf, sizeof buf - 1)) < 0) { \ + bb_perror_msg_and_die("%s", filename); \ + } \ + buf[local_n] = '\0'; \ +}while(0) + +static void init_Hertz_value(void) { + unsigned long user_j, nice_j, sys_j, other_j; /* jiffies (clock ticks) */ + double up_1, up_2, seconds; + unsigned long jiffies, h; + char buf[80]; + int uptime_fd = -1; + int stat_fd = -1; + + long smp_num_cpus = sysconf(_SC_NPROCESSORS_CONF); + + if(smp_num_cpus<1) smp_num_cpus=1; + do { + int local_n; + + FILE_TO_BUF("uptime", uptime_fd); + up_1 = strtod(buf, 0); + FILE_TO_BUF("stat", stat_fd); + sscanf(buf, "cpu %lu %lu %lu %lu", &user_j, &nice_j, &sys_j, &other_j); + FILE_TO_BUF2("uptime", uptime_fd); + up_2 = strtod(buf, 0); + } while((long)( (up_2-up_1)*1000.0/up_1 )); /* want under 0.1% error */ + + close(uptime_fd); + close(stat_fd); + + jiffies = user_j + nice_j + sys_j + other_j; + seconds = (up_1 + up_2) / 2; + h = (unsigned long)( (double)jiffies/seconds/smp_num_cpus ); + /* actual values used by 2.4 kernels: 32 64 100 128 1000 1024 1200 */ + switch(h){ + case 30 ... 34 : Hertz = 32; break; /* ia64 emulator */ + case 48 ... 52 : Hertz = 50; break; + case 58 ... 62 : Hertz = 60; break; + case 63 ... 65 : Hertz = 64; break; /* StrongARM /Shark */ + case 95 ... 105 : Hertz = 100; break; /* normal Linux */ + case 124 ... 132 : Hertz = 128; break; /* MIPS, ARM */ + case 195 ... 204 : Hertz = 200; break; /* normal << 1 */ + case 253 ... 260 : Hertz = 256; break; + case 295 ... 304 : Hertz = 300; break; /* 3 cpus */ + case 393 ... 408 : Hertz = 400; break; /* normal << 2 */ + case 495 ... 504 : Hertz = 500; break; /* 5 cpus */ + case 595 ... 604 : Hertz = 600; break; /* 6 cpus */ + case 695 ... 704 : Hertz = 700; break; /* 7 cpus */ + case 790 ... 808 : Hertz = 800; break; /* normal << 3 */ + case 895 ... 904 : Hertz = 900; break; /* 9 cpus */ + case 990 ... 1010 : Hertz = 1000; break; /* ARM */ + case 1015 ... 1035 : Hertz = 1024; break; /* Alpha, ia64 */ + case 1095 ... 1104 : Hertz = 1100; break; /* 11 cpus */ + case 1180 ... 1220 : Hertz = 1200; break; /* Alpha */ + default: + /* If 32-bit or big-endian (not Alpha or ia64), assume HZ is 100. */ + Hertz = (sizeof(long)==sizeof(int) || htons(999)==999) ? 100UL : 1024UL; + } +} + +static void do_stats(void) +{ + struct timeval t; + static struct timeval oldtime; + struct timezone timez; + float elapsed_time; + + procps_status_t *cur; + int total_time, i, n; + static int prev_count; + int systime, usrtime, pid; + + struct save_hist *New_save_hist; + + /* + * Finds the current time (in microseconds) and calculates the time + * elapsed since the last update. + */ + gettimeofday(&t, &timez); + elapsed_time = (t.tv_sec - oldtime.tv_sec) + + (float) (t.tv_usec - oldtime.tv_usec) / 1000000.0; + oldtime.tv_sec = t.tv_sec; + oldtime.tv_usec = t.tv_usec; + + New_save_hist = alloca(sizeof(struct save_hist)*ntop); + /* + * Make a pass through the data to get stats. + */ + for(n = 0; n < ntop; n++) { + cur = top + n; + + /* + * Calculate time in cur process. Time is sum of user time + * (usrtime) plus system time (systime). + */ + systime = cur->stime; + usrtime = cur->utime; + pid = cur->pid; + total_time = systime + usrtime; + New_save_hist[n].ticks = total_time; + New_save_hist[n].pid = pid; + New_save_hist[n].stime = systime; + New_save_hist[n].utime = usrtime; + + /* find matching entry from previous pass */ + for (i = 0; i < prev_count; i++) { + if (save_history[i].pid == pid) { + total_time -= save_history[i].ticks; + systime -= save_history[i].stime; + usrtime -= save_history[i].utime; + break; + } + } + + /* + * Calculate percent cpu time for cur task. + */ + i = (total_time * 10 * 100/Hertz) / elapsed_time; + if (i > 999) + i = 999; + cur->pcpu = i; + + } + + /* + * Save cur frame's information. + */ + free(save_history); + save_history = memcpy(xmalloc(sizeof(struct save_hist)*n), New_save_hist, + sizeof(struct save_hist)*n); + prev_count = n; + qsort(top, n, sizeof(procps_status_t), (void*)mult_lvl_cmp); +} +#else +static cmp_t sort_function; +#endif /* FEATURE_CPU_USAGE_PERCENTAGE */ + +/* display generic info (meminfo / loadavg) */ +static unsigned long display_generic(void) +{ + FILE *fp; + char buf[80]; + float avg1, avg2, avg3; + unsigned long total, used, mfree, shared, buffers, cached; + unsigned int needs_conversion = 1; + + /* read memory info */ + fp = bb_xfopen("meminfo", "r"); + + /* + * Old kernels (such as 2.4.x) had a nice summary of memory info that + * we could parse, however this is gone entirely in 2.6. Try parsing + * the old way first, and if that fails, parse each field manually. + * + * First, we read in the first line. Old kernels will have bogus + * strings we don't care about, whereas new kernels will start right + * out with MemTotal: + * -- PFM. + */ + if (fscanf(fp, "MemTotal: %lu %s\n", &total, buf) != 2) { + fgets(buf, sizeof(buf), fp); /* skip first line */ + + fscanf(fp, "Mem: %lu %lu %lu %lu %lu %lu", + &total, &used, &mfree, &shared, &buffers, &cached); + } else { + /* + * Revert to manual parsing, which incidentally already has the + * sizes in kilobytes. This should be safe for both 2.4 and + * 2.6. + */ + needs_conversion = 0; + + fscanf(fp, "MemFree: %lu %s\n", &mfree, buf); + + /* + * MemShared: is no longer present in 2.6. Report this as 0, + * to maintain consistent behavior with normal procps. + */ + if (fscanf(fp, "MemShared: %lu %s\n", &shared, buf) != 2) + shared = 0; + + fscanf(fp, "Buffers: %lu %s\n", &buffers, buf); + fscanf(fp, "Cached: %lu %s\n", &cached, buf); + + used = total - mfree; + } + fclose(fp); + + /* read load average */ + fp = bb_xfopen("loadavg", "r"); + if (fscanf(fp, "%f %f %f", &avg1, &avg2, &avg3) != 3) { + bb_error_msg_and_die("failed to read '%s'", "loadavg"); + } + fclose(fp); + + if (needs_conversion) { + /* convert to kilobytes */ + used /= 1024; + mfree /= 1024; + shared /= 1024; + buffers /= 1024; + cached /= 1024; + total /= 1024; + } + + /* output memory info and load average */ + /* clear screen & go to top */ + printf("\e[H\e[J" "Mem: " + "%ldK used, %ldK free, %ldK shrd, %ldK buff, %ldK cached\n", + used, mfree, shared, buffers, cached); + printf("Load average: %.2f, %.2f, %.2f " + "(State: S=sleeping R=running, W=waiting)\n", + avg1, avg2, avg3); + return total; +} + + +/* display process statuses */ +static void display_status(int count, int col) +{ + procps_status_t *s = top; + char rss_str_buf[8]; + unsigned long total_memory = display_generic(); + +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + /* what info of the processes is shown */ + printf("\n\e[7m PID USER STATUS RSS PPID %%CPU %%MEM COMMAND\e[0m\n"); +#else + printf("\n\e[7m PID USER STATUS RSS PPID %%MEM COMMAND\e[0m\n"); +#endif + + while (count--) { + char *namecmd = s->short_cmd; + int pmem; + + pmem = 1000.0 * s->rss / total_memory; + if (pmem > 999) pmem = 999; + + if(s->rss > 10*1024) + sprintf(rss_str_buf, "%6ldM", s->rss/1024); + else + sprintf(rss_str_buf, "%7ld", s->rss); +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + printf("%5d %-8s %s %s %5d %2d.%d %2u.%u ", + s->pid, s->user, s->state, rss_str_buf, s->ppid, + s->pcpu/10, s->pcpu%10, pmem/10, pmem%10); +#else + printf("%5d %-8s %s %s %5d %2u.%u ", + s->pid, s->user, s->state, rss_str_buf, s->ppid, + pmem/10, pmem%10); +#endif + if(strlen(namecmd) > col) + namecmd[col] = 0; + printf("%s\n", namecmd); + s++; + } +} + +static void clearmems(void) +{ + free(top); + top = 0; + ntop = 0; +} + +#if defined CONFIG_FEATURE_USE_TERMIOS +#include <termios.h> +#include <sys/time.h> +#include <signal.h> + + +static struct termios initial_settings; + +static void reset_term(void) +{ + tcsetattr(0, TCSANOW, (void *) &initial_settings); +#ifdef CONFIG_FEATURE_CLEAN_UP + clearmems(); +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + free(save_history); +#endif +#endif /* CONFIG_FEATURE_CLEAN_UP */ +} + +static void sig_catcher (int sig) +{ + reset_term(); +} +#endif /* CONFIG_FEATURE_USE_TERMIOS */ + + +int top_main(int argc, char **argv) +{ + int opt, interval, lines, col; +#if defined CONFIG_FEATURE_USE_TERMIOS + struct termios new_settings; + struct timeval tv; + fd_set readfds; + unsigned char c; + struct sigaction sa; +#endif /* CONFIG_FEATURE_USE_TERMIOS */ + + /* Default update rate is 5 seconds */ + interval = 5; + + /* do normal option parsing */ + while ((opt = getopt(argc, argv, "d:")) > 0) { + switch (opt) { + case 'd': + interval = atoi(optarg); + break; + default: + bb_show_usage(); + } + } + + /* Default to 25 lines - 5 lines for status */ + lines = 25 - 5; + /* Default CMD format size */ +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + col = 35 - 6; +#else + col = 35; +#endif + /* change to /proc */ + if (chdir("/proc") < 0) { + bb_perror_msg_and_die("chdir('/proc')"); + } +#if defined CONFIG_FEATURE_USE_TERMIOS + tcgetattr(0, (void *) &initial_settings); + memcpy(&new_settings, &initial_settings, sizeof(struct termios)); + new_settings.c_lflag &= ~(ISIG | ICANON); /* unbuffered input */ + /* Turn off echoing */ + new_settings.c_lflag &= ~(ECHO | ECHONL); + + signal (SIGTERM, sig_catcher); + sigaction (SIGTERM, (struct sigaction *) 0, &sa); + sa.sa_flags |= SA_RESTART; + sa.sa_flags &= ~SA_INTERRUPT; + sigaction (SIGTERM, &sa, (struct sigaction *) 0); + sigaction (SIGINT, &sa, (struct sigaction *) 0); + tcsetattr(0, TCSANOW, (void *) &new_settings); + atexit(reset_term); + + get_terminal_width_height(0, &col, &lines); + if (lines > 4) { + lines -= 5; +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + col = col - 80 + 35 - 6; +#else + col = col - 80 + 35; +#endif + } +#endif /* CONFIG_FEATURE_USE_TERMIOS */ +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + sort_function[0] = pcpu_sort; + sort_function[1] = mem_sort; + sort_function[2] = time_sort; +#else + sort_function = mem_sort; +#endif + while (1) { + /* read process IDs & status for all the processes */ + procps_status_t * p; + +#ifdef CONFIG_SELINUX + while ((p = procps_scan(0, 0, NULL) ) != 0) { +#else + while ((p = procps_scan(0)) != 0) { +#endif + int n = ntop; + + top = xrealloc(top, (++ntop)*sizeof(procps_status_t)); + memcpy(top + n, p, sizeof(procps_status_t)); + } + if (ntop == 0) { + bb_perror_msg_and_die("scandir('/proc')"); + } +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + if(!Hertz) { + init_Hertz_value(); + do_stats(); + sleep(1); + clearmems(); + continue; + } + do_stats(); +#else + qsort(top, ntop, sizeof(procps_status_t), (void*)sort_function); +#endif + opt = lines; + if (opt > ntop) { + opt = ntop; + } + /* show status for each of the processes */ + display_status(opt, col); +#if defined CONFIG_FEATURE_USE_TERMIOS + tv.tv_sec = interval; + tv.tv_usec = 0; + FD_ZERO (&readfds); + FD_SET (0, &readfds); + select (1, &readfds, NULL, NULL, &tv); + if (FD_ISSET (0, &readfds)) { + if (read (0, &c, 1) <= 0) { /* signal */ + return EXIT_FAILURE; + } + if(c == 'q' || c == initial_settings.c_cc[VINTR]) + return EXIT_SUCCESS; + if(c == 'M') { +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + sort_function[0] = mem_sort; + sort_function[1] = pcpu_sort; + sort_function[2] = time_sort; +#else + sort_function = mem_sort; +#endif + } +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + if(c == 'P') { + sort_function[0] = pcpu_sort; + sort_function[1] = mem_sort; + sort_function[2] = time_sort; + } + if(c == 'T') { + sort_function[0] = time_sort; + sort_function[1] = mem_sort; + sort_function[2] = pcpu_sort; + } +#endif + if(c == 'N') { +#ifdef FEATURE_CPU_USAGE_PERCENTAGE + sort_function[0] = pid_sort; +#else + sort_function = pid_sort; +#endif + } + } +#else + sleep(interval); +#endif /* CONFIG_FEATURE_USE_TERMIOS */ + clearmems(); + } + + return EXIT_SUCCESS; +} diff --git a/busybox/procps/uptime.c b/busybox/procps/uptime.c new file mode 100644 index 0000000..38d58af --- /dev/null +++ b/busybox/procps/uptime.c @@ -0,0 +1,75 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini uptime implementation for busybox + * + * Copyright (C) 1999-2004 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 + * + */ + +/* This version of uptime doesn't display the number of users on the system, + * since busybox init doesn't mess with utmp. For folks using utmp that are + * just dying to have # of users reported, feel free to write it as some type + * of CONFIG_FEATURE_UTMP_SUPPORT #define + */ + +/* getopt not needed */ + + +#include <stdio.h> +#include <time.h> +#include <errno.h> +#include <stdlib.h> +#include "busybox.h" + +static const int FSHIFT = 16; /* nr of bits of precision */ +#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */ +#define LOAD_INT(x) ((x) >> FSHIFT) +#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) + + +extern int uptime_main(int argc, char **argv) +{ + int updays, uphours, upminutes; + struct sysinfo info; + struct tm *current_time; + time_t current_secs; + + time(¤t_secs); + current_time = localtime(¤t_secs); + + sysinfo(&info); + + printf(" %02d:%02d:%02d up ", + current_time->tm_hour, current_time->tm_min, current_time->tm_sec); + updays = (int) info.uptime / (60*60*24); + if (updays) + printf("%d day%s, ", updays, (updays != 1) ? "s" : ""); + upminutes = (int) info.uptime / 60; + uphours = (upminutes / 60) % 24; + upminutes %= 60; + if(uphours) + printf("%2d:%02d, ", uphours, upminutes); + else + printf("%d min, ", upminutes); + + printf("load average: %ld.%02ld, %ld.%02ld, %ld.%02ld\n", + LOAD_INT(info.loads[0]), LOAD_FRAC(info.loads[0]), + LOAD_INT(info.loads[1]), LOAD_FRAC(info.loads[1]), + LOAD_INT(info.loads[2]), LOAD_FRAC(info.loads[2])); + + return EXIT_SUCCESS; +} |