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Add a trivial ps command.

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This commit is contained in:
Eric Andersen 1999-10-20 08:05:35 +00:00
parent ce8f3b9933
commit ef8b6c757d
8 changed files with 146 additions and 2 deletions
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3
applets/busybox.c
View File

@ -117,6 +117,9 @@ static const struct Applet applets[] = {
#ifdef BB_PRINTF //usr/bin
{"printf", printf_main},
#endif
#ifdef BB_PS //bin
{"ps", ps_main},
#endif
#ifdef BB_PWD //bin
{"pwd", pwd_main},
#endif

3
busybox.c
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@ -117,6 +117,9 @@ static const struct Applet applets[] = {
#ifdef BB_PRINTF //usr/bin
{"printf", printf_main},
#endif
#ifdef BB_PS //bin
{"ps", ps_main},
#endif
#ifdef BB_PWD //bin
{"pwd", pwd_main},
#endif

1
busybox.def.h
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@ -38,6 +38,7 @@
#define BB_MT
#define BB_MV
//#define BB_PRINTF
#define BB_PS
#define BB_PWD
#define BB_REBOOT
#define BB_RM

1
internal.h
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@ -93,6 +93,7 @@ extern int mount_main(int argc, char** argv);
extern int mt_main(int argc, char** argv);
extern int mv_main(int argc, char** argv);
extern int printf_main(int argc, char** argv);
extern int ps_main(int argc, char** argv);
extern int pwd_main(int argc, char** argv);
extern int reboot_main(int argc, char** argv);
extern int rmdir_main(int argc, char **argv);

2
more.c
View File

@ -79,7 +79,7 @@ extern int more_main(int argc, char **argv)
file = fopen(*argv, "r");
if (file == NULL) {
perror("Can't open file");
perror(*argv);
exit(FALSE);
}
fstat(fileno(file), &st);

68
procps/ps.c Normal file
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@ -0,0 +1,68 @@
/*
* Mini ps implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <andersee@debian.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 "internal.h"
#include <unistd.h>
#include <dirent.h>
#include <stdio.h>
extern int ps_main(int argc, char **argv)
{
DIR *dir;
FILE *file;
struct dirent *entry;
if ( argc>1 && **(argv+1) == '-' ) {
usage ("ps\n");
}
dir = opendir("/proc");
if (!dir) {
perror("Can't open /proc");
exit(FALSE);
}
fprintf(stdout, "PID\tUid\tGid\tState\tName\n");
while ((entry = readdir(dir)) != NULL) {
char psStatus[NAME_MAX];
char psName[NAME_MAX]="";
char psState[NAME_MAX]="";
int psPID=0, psPPID=0, psUid=0, psGid=0;
//if (match(entry->d_name, "[0-9]") == FALSE)
// continue;
sprintf(psStatus, "/proc/%s/status", entry->d_name);
file = fopen( psStatus, "r");
if (file == NULL) {
continue;
//perror(psStatus);
//exit( FALSE);
}
fscanf(file, "Name:\t%s\nState:\t%s\nPid:\t%d\nPPid:\t%d\nUid:\t%d\nGid:\t%d",
psName, psState, &psPID, &psPPID, &psUid, &psGid);
fclose(file);
fprintf(stdout, "%d\t%d\t%d\t%s\t%s\n", psPID, psUid, psGid, psState, psName);
}
closedir(dir);
exit(TRUE);
}

68
ps.c Normal file
View File

@ -0,0 +1,68 @@
/*
* Mini ps implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <andersee@debian.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 "internal.h"
#include <unistd.h>
#include <dirent.h>
#include <stdio.h>
extern int ps_main(int argc, char **argv)
{
DIR *dir;
FILE *file;
struct dirent *entry;
if ( argc>1 && **(argv+1) == '-' ) {
usage ("ps\n");
}
dir = opendir("/proc");
if (!dir) {
perror("Can't open /proc");
exit(FALSE);
}
fprintf(stdout, "PID\tUid\tGid\tState\tName\n");
while ((entry = readdir(dir)) != NULL) {
char psStatus[NAME_MAX];
char psName[NAME_MAX]="";
char psState[NAME_MAX]="";
int psPID=0, psPPID=0, psUid=0, psGid=0;
//if (match(entry->d_name, "[0-9]") == FALSE)
// continue;
sprintf(psStatus, "/proc/%s/status", entry->d_name);
file = fopen( psStatus, "r");
if (file == NULL) {
continue;
//perror(psStatus);
//exit( FALSE);
}
fscanf(file, "Name:\t%s\nState:\t%s\nPid:\t%d\nPPid:\t%d\nUid:\t%d\nGid:\t%d",
psName, psState, &psPID, &psPPID, &psUid, &psGid);
fclose(file);
fprintf(stdout, "%d\t%d\t%d\t%s\t%s\n", psPID, psUid, psGid, psState, psName);
}
closedir(dir);
exit(TRUE);
}

2
util-linux/more.c
View File

@ -79,7 +79,7 @@ extern int more_main(int argc, char **argv)
file = fopen(*argv, "r");
if (file == NULL) {
perror("Can't open file");
perror(*argv);
exit(FALSE);
}
fstat(fileno(file), &st);