Some formatting updates (ran the code through indent)
-Erik
This commit is contained in:
Erik Andersen
@@ -1,3 +1,4 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini free implementation for busybox
|
||||
*
|
||||
@@ -30,6 +31,7 @@
|
||||
|
||||
extern int free_main(int argc, char **argv)
|
||||
{
|
||||
char* cmd[] = { "cat", "/proc/meminfo", "\0" };
|
||||
exit(cat_main( 3, cmd));
|
||||
char *cmd[] = { "cat", "/proc/meminfo", "\0" };
|
||||
|
||||
exit(cat_main(3, cmd));
|
||||
}
|
||||
|
||||
295
procps/kill.c
295
procps/kill.c
@@ -1,3 +1,4 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini kill implementation for busybox
|
||||
*
|
||||
@@ -29,188 +30,188 @@
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static const char* kill_usage = "kill [-signal] process-id [process-id ...]\n\n"
|
||||
"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
|
||||
"Options:\n"
|
||||
"\t-l\tList all signal names and numbers.\n\n";
|
||||
static const char *kill_usage =
|
||||
"kill [-signal] process-id [process-id ...]\n\n"
|
||||
"Send a signal (default is SIGTERM) to the specified process(es).\n\n"
|
||||
"Options:\n" "\t-l\tList all signal names and numbers.\n\n";
|
||||
|
||||
|
||||
struct signal_name {
|
||||
const char *name;
|
||||
int number;
|
||||
const char *name;
|
||||
int number;
|
||||
};
|
||||
|
||||
const struct signal_name signames[] = {
|
||||
{"HUP", SIGHUP},
|
||||
{"INT", SIGINT},
|
||||
{"QUIT", SIGQUIT},
|
||||
{"ILL", SIGILL},
|
||||
{"TRAP", SIGTRAP},
|
||||
{"ABRT", SIGABRT},
|
||||
{"HUP", SIGHUP},
|
||||
{"INT", SIGINT},
|
||||
{"QUIT", SIGQUIT},
|
||||
{"ILL", SIGILL},
|
||||
{"TRAP", SIGTRAP},
|
||||
{"ABRT", SIGABRT},
|
||||
#ifndef __alpha__
|
||||
{"IOT", SIGIOT},
|
||||
{"IOT", SIGIOT},
|
||||
#endif
|
||||
#if defined(__sparc__) || defined(__alpha__)
|
||||
{"EMT", SIGEMT},
|
||||
{"EMT", SIGEMT},
|
||||
#else
|
||||
{"BUS", SIGBUS},
|
||||
{"BUS", SIGBUS},
|
||||
#endif
|
||||
{"FPE", SIGFPE},
|
||||
{"KILL", SIGKILL},
|
||||
{"FPE", SIGFPE},
|
||||
{"KILL", SIGKILL},
|
||||
#if defined(__sparc__) || defined(__alpha__)
|
||||
{"BUS", SIGBUS},
|
||||
{"BUS", SIGBUS},
|
||||
#else
|
||||
{"USR1", SIGUSR1},
|
||||
{"USR1", SIGUSR1},
|
||||
#endif
|
||||
{"SEGV", SIGSEGV},
|
||||
{"SEGV", SIGSEGV},
|
||||
#if defined(__sparc__) || defined(__alpha__)
|
||||
{"SYS", SIGSYS},
|
||||
{"SYS", SIGSYS},
|
||||
#else
|
||||
{"USR2", SIGUSR2},
|
||||
{"USR2", SIGUSR2},
|
||||
#endif
|
||||
{"PIPE", SIGPIPE},
|
||||
{"ALRM", SIGALRM},
|
||||
{"TERM", SIGTERM},
|
||||
{"PIPE", SIGPIPE},
|
||||
{"ALRM", SIGALRM},
|
||||
{"TERM", SIGTERM},
|
||||
#if defined(__sparc__) || defined(__alpha__)
|
||||
{"URG", SIGURG},
|
||||
{"STOP", SIGSTOP},
|
||||
{"TSTP", SIGTSTP},
|
||||
{"CONT", SIGCONT},
|
||||
{"CHLD", SIGCHLD},
|
||||
{"TTIN", SIGTTIN},
|
||||
{"TTOU", SIGTTOU},
|
||||
{"IO", SIGIO},
|
||||
{"URG", SIGURG},
|
||||
{"STOP", SIGSTOP},
|
||||
{"TSTP", SIGTSTP},
|
||||
{"CONT", SIGCONT},
|
||||
{"CHLD", SIGCHLD},
|
||||
{"TTIN", SIGTTIN},
|
||||
{"TTOU", SIGTTOU},
|
||||
{"IO", SIGIO},
|
||||
# ifndef __alpha__
|
||||
{"POLL", SIGIO},
|
||||
{"POLL", SIGIO},
|
||||
# endif
|
||||
{"XCPU", SIGXCPU},
|
||||
{"XFSZ", SIGXFSZ},
|
||||
{"VTALRM", SIGVTALRM},
|
||||
{"PROF", SIGPROF},
|
||||
{"WINCH", SIGWINCH},
|
||||
{"XCPU", SIGXCPU},
|
||||
{"XFSZ", SIGXFSZ},
|
||||
{"VTALRM", SIGVTALRM},
|
||||
{"PROF", SIGPROF},
|
||||
{"WINCH", SIGWINCH},
|
||||
# ifdef __alpha__
|
||||
{"INFO", SIGINFO},
|
||||
{"INFO", SIGINFO},
|
||||
# else
|
||||
{"LOST", SIGLOST},
|
||||
{"LOST", SIGLOST},
|
||||
# endif
|
||||
{"USR1", SIGUSR1},
|
||||
{"USR2", SIGUSR2},
|
||||
{"USR1", SIGUSR1},
|
||||
{"USR2", SIGUSR2},
|
||||
#else
|
||||
{"STKFLT", SIGSTKFLT},
|
||||
{"CHLD", SIGCHLD},
|
||||
{"CONT", SIGCONT},
|
||||
{"STOP", SIGSTOP},
|
||||
{"TSTP", SIGTSTP},
|
||||
{"TTIN", SIGTTIN},
|
||||
{"TTOU", SIGTTOU},
|
||||
{"URG", SIGURG},
|
||||
{"XCPU", SIGXCPU},
|
||||
{"XFSZ", SIGXFSZ},
|
||||
{"VTALRM", SIGVTALRM},
|
||||
{"PROF", SIGPROF},
|
||||
{"WINCH", SIGWINCH},
|
||||
{"IO", SIGIO},
|
||||
{"POLL", SIGPOLL},
|
||||
{"PWR", SIGPWR},
|
||||
{"UNUSED", SIGUNUSED},
|
||||
{"STKFLT", SIGSTKFLT},
|
||||
{"CHLD", SIGCHLD},
|
||||
{"CONT", SIGCONT},
|
||||
{"STOP", SIGSTOP},
|
||||
{"TSTP", SIGTSTP},
|
||||
{"TTIN", SIGTTIN},
|
||||
{"TTOU", SIGTTOU},
|
||||
{"URG", SIGURG},
|
||||
{"XCPU", SIGXCPU},
|
||||
{"XFSZ", SIGXFSZ},
|
||||
{"VTALRM", SIGVTALRM},
|
||||
{"PROF", SIGPROF},
|
||||
{"WINCH", SIGWINCH},
|
||||
{"IO", SIGIO},
|
||||
{"POLL", SIGPOLL},
|
||||
{"PWR", SIGPWR},
|
||||
{"UNUSED", SIGUNUSED},
|
||||
#endif
|
||||
{0, 0}
|
||||
{0, 0}
|
||||
};
|
||||
|
||||
extern int kill_main (int argc, char **argv)
|
||||
extern int kill_main(int argc, char **argv)
|
||||
{
|
||||
int sig = SIGTERM;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
/* Parse any options */
|
||||
if (argc < 1)
|
||||
usage(kill_usage);
|
||||
int sig = SIGTERM;
|
||||
|
||||
while (argc > 0 && **argv == '-') {
|
||||
while (*++(*argv)) {
|
||||
switch (**argv) {
|
||||
case 'l':
|
||||
{
|
||||
int col=0;
|
||||
const struct signal_name *s = signames;
|
||||
|
||||
while (s->name != 0) {
|
||||
col+=fprintf(stderr, "%2d) %-8s", s->number, (s++)->name);
|
||||
if (col>60) {
|
||||
fprintf(stderr, "\n");
|
||||
col=0;
|
||||
}
|
||||
}
|
||||
fprintf(stderr, "\n\n");
|
||||
exit( TRUE);
|
||||
}
|
||||
break;
|
||||
case '-':
|
||||
usage(kill_usage);
|
||||
default:
|
||||
{
|
||||
if (isdigit( **argv)) {
|
||||
sig = atoi (*argv);
|
||||
if (sig < 0 || sig >= NSIG)
|
||||
goto end;
|
||||
else {
|
||||
argc--;
|
||||
argv++;
|
||||
goto do_it_now;
|
||||
}
|
||||
}
|
||||
else {
|
||||
const struct signal_name *s = signames;
|
||||
while (s->name != 0) {
|
||||
if (strcasecmp (s->name, *argv) == 0) {
|
||||
sig = s->number;
|
||||
argc--;
|
||||
argv++;
|
||||
goto do_it_now;
|
||||
}
|
||||
s++;
|
||||
}
|
||||
if (s->name == 0)
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
/* Parse any options */
|
||||
if (argc < 1)
|
||||
usage(kill_usage);
|
||||
|
||||
while (argc > 0 && **argv == '-') {
|
||||
while (*++(*argv)) {
|
||||
switch (**argv) {
|
||||
case 'l':
|
||||
{
|
||||
int col = 0;
|
||||
const struct signal_name *s = signames;
|
||||
|
||||
while (s->name != 0) {
|
||||
col +=
|
||||
fprintf(stderr, "%2d) %-8s", s->number,
|
||||
(s++)->name);
|
||||
if (col > 60) {
|
||||
fprintf(stderr, "\n");
|
||||
col = 0;
|
||||
}
|
||||
}
|
||||
fprintf(stderr, "\n\n");
|
||||
exit(TRUE);
|
||||
}
|
||||
break;
|
||||
case '-':
|
||||
usage(kill_usage);
|
||||
default:
|
||||
{
|
||||
if (isdigit(**argv)) {
|
||||
sig = atoi(*argv);
|
||||
if (sig < 0 || sig >= NSIG)
|
||||
goto end;
|
||||
else {
|
||||
argc--;
|
||||
argv++;
|
||||
goto do_it_now;
|
||||
}
|
||||
} else {
|
||||
const struct signal_name *s = signames;
|
||||
|
||||
while (s->name != 0) {
|
||||
if (strcasecmp(s->name, *argv) == 0) {
|
||||
sig = s->number;
|
||||
argc--;
|
||||
argv++;
|
||||
goto do_it_now;
|
||||
}
|
||||
s++;
|
||||
}
|
||||
if (s->name == 0)
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
do_it_now:
|
||||
do_it_now:
|
||||
|
||||
while (--argc >= 0) {
|
||||
int pid;
|
||||
struct stat statbuf;
|
||||
char pidpath[20]="/proc/";
|
||||
|
||||
if (! isdigit( **argv)) {
|
||||
fprintf(stderr, "bad PID: %s\n", *argv);
|
||||
exit( FALSE);
|
||||
}
|
||||
pid = atoi (*argv);
|
||||
snprintf(pidpath, 20, "/proc/%s/stat", *argv);
|
||||
if (stat( pidpath, &statbuf)!=0) {
|
||||
fprintf(stderr, "kill: (%d) - No such pid\n", pid);
|
||||
exit( FALSE);
|
||||
while (--argc >= 0) {
|
||||
int pid;
|
||||
struct stat statbuf;
|
||||
char pidpath[20] = "/proc/";
|
||||
|
||||
if (!isdigit(**argv)) {
|
||||
fprintf(stderr, "bad PID: %s\n", *argv);
|
||||
exit(FALSE);
|
||||
}
|
||||
pid = atoi(*argv);
|
||||
snprintf(pidpath, 20, "/proc/%s/stat", *argv);
|
||||
if (stat(pidpath, &statbuf) != 0) {
|
||||
fprintf(stderr, "kill: (%d) - No such pid\n", pid);
|
||||
exit(FALSE);
|
||||
}
|
||||
fprintf(stderr, "sig = %d\n", sig);
|
||||
if (kill(pid, sig) != 0) {
|
||||
perror(*argv);
|
||||
exit(FALSE);
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
fprintf(stderr, "sig = %d\n", sig);
|
||||
if (kill (pid, sig) != 0) {
|
||||
perror (*argv);
|
||||
exit ( FALSE);
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
exit ( TRUE);
|
||||
exit(TRUE);
|
||||
|
||||
|
||||
end:
|
||||
fprintf(stderr, "bad signal name: %s\n", *argv);
|
||||
exit (TRUE);
|
||||
end:
|
||||
fprintf(stderr, "bad signal name: %s\n", *argv);
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
|
||||
|
||||
196
procps/ps.c
196
procps/ps.c
@@ -1,3 +1,4 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini ps implementation for busybox
|
||||
*
|
||||
@@ -33,123 +34,128 @@
|
||||
#endif
|
||||
|
||||
typedef struct proc_s {
|
||||
char
|
||||
cmd[16]; /* basename of executable file in call to exec(2) */
|
||||
int
|
||||
ruid, rgid, /* real only (sorry) */
|
||||
pid, /* process id */
|
||||
ppid; /* pid of parent process */
|
||||
char
|
||||
state; /* single-char code for process state (S=sleeping) */
|
||||
char
|
||||
cmd[16]; /* basename of executable file in call to exec(2) */
|
||||
int
|
||||
ruid, rgid, /* 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)
|
||||
static int file2str(char *filename, char *ret, int cap)
|
||||
{
|
||||
int fd, num_read;
|
||||
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;
|
||||
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)
|
||||
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);
|
||||
char *tmp;
|
||||
|
||||
tmp = strstr (S,"Pid:");
|
||||
if(tmp) sscanf (tmp,
|
||||
"Pid:\t%d\n"
|
||||
"PPid:\t%d\n",
|
||||
&P->pid,
|
||||
&P->ppid
|
||||
);
|
||||
else fprintf(stderr, "Internal error!\n");
|
||||
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);
|
||||
|
||||
/* For busybox, ignoring effective, saved, etc */
|
||||
tmp = strstr (S,"Uid:");
|
||||
if(tmp) sscanf (tmp,
|
||||
"Uid:\t%d", &P->ruid);
|
||||
else fprintf(stderr, "Internal error!\n");
|
||||
tmp = strstr(S, "Pid:");
|
||||
if (tmp)
|
||||
sscanf(tmp, "Pid:\t%d\n" "PPid:\t%d\n", &P->pid, &P->ppid);
|
||||
else
|
||||
fprintf(stderr, "Internal error!\n");
|
||||
|
||||
tmp = strstr (S,"Gid:");
|
||||
if(tmp) sscanf (tmp,
|
||||
"Gid:\t%d", &P->rgid);
|
||||
else fprintf(stderr, "Internal error!\n");
|
||||
/* For busybox, ignoring effective, saved, etc */
|
||||
tmp = strstr(S, "Uid:");
|
||||
if (tmp)
|
||||
sscanf(tmp, "Uid:\t%d", &P->ruid);
|
||||
else
|
||||
fprintf(stderr, "Internal error!\n");
|
||||
|
||||
tmp = strstr(S, "Gid:");
|
||||
if (tmp)
|
||||
sscanf(tmp, "Gid:\t%d", &P->rgid);
|
||||
else
|
||||
fprintf(stderr, "Internal error!\n");
|
||||
|
||||
}
|
||||
|
||||
|
||||
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[10]="";
|
||||
char groupName[10]="";
|
||||
int i, c;
|
||||
proc_t p;
|
||||
DIR *dir;
|
||||
FILE *file;
|
||||
struct dirent *entry;
|
||||
char path[32], sbuf[512];
|
||||
char uidName[10] = "";
|
||||
char groupName[10] = "";
|
||||
int i, c;
|
||||
|
||||
if ( argc>1 && **(argv+1) == '-' ) {
|
||||
usage ("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
}
|
||||
|
||||
dir = opendir("/proc");
|
||||
if (!dir) {
|
||||
perror("Can't open /proc");
|
||||
exit(FALSE);
|
||||
}
|
||||
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid", "State", "Command");
|
||||
while ((entry = readdir(dir)) != NULL) {
|
||||
uidName[0]='\0';
|
||||
groupName[0]='\0';
|
||||
|
||||
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);
|
||||
if (argc > 1 && **(argv + 1) == '-') {
|
||||
usage
|
||||
("ps\n\nReport process status\n\nThis version of ps accepts no options.\n");
|
||||
}
|
||||
|
||||
/* Make some adjustments as needed */
|
||||
my_getpwuid( uidName, p.ruid);
|
||||
my_getgrgid( groupName, p.rgid);
|
||||
if (*uidName == '\0')
|
||||
sprintf( uidName, "%d", p.ruid);
|
||||
if (*groupName == '\0')
|
||||
sprintf( groupName, "%d", p.rgid);
|
||||
dir = opendir("/proc");
|
||||
if (!dir) {
|
||||
perror("Can't open /proc");
|
||||
exit(FALSE);
|
||||
}
|
||||
|
||||
fprintf(stdout, "%5d %-8s %-8s %c ", p.pid, uidName, groupName, p.state);
|
||||
sprintf(path, "/proc/%s/cmdline", entry->d_name);
|
||||
file = fopen(path, "r");
|
||||
if (file == NULL) {
|
||||
perror(path);
|
||||
exit(FALSE);
|
||||
fprintf(stdout, "%5s %-8s %-3s %5s %s\n", "PID", "Uid", "Gid",
|
||||
"State", "Command");
|
||||
while ((entry = readdir(dir)) != NULL) {
|
||||
uidName[0] = '\0';
|
||||
groupName[0] = '\0';
|
||||
|
||||
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);
|
||||
my_getgrgid(groupName, p.rgid);
|
||||
if (*uidName == '\0')
|
||||
sprintf(uidName, "%d", p.ruid);
|
||||
if (*groupName == '\0')
|
||||
sprintf(groupName, "%d", p.rgid);
|
||||
|
||||
fprintf(stdout, "%5d %-8s %-8s %c ", p.pid, uidName, groupName,
|
||||
p.state);
|
||||
sprintf(path, "/proc/%s/cmdline", entry->d_name);
|
||||
file = fopen(path, "r");
|
||||
if (file == NULL) {
|
||||
perror(path);
|
||||
exit(FALSE);
|
||||
}
|
||||
i = 0;
|
||||
while (((c = getc(file)) != EOF) && (i < 53)) {
|
||||
i++;
|
||||
if (c == '\0')
|
||||
c = ' ';
|
||||
putc(c, stdout);
|
||||
}
|
||||
if (i == 0)
|
||||
fprintf(stdout, "%s", p.cmd);
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
i=0;
|
||||
while (((c = getc(file)) != EOF) && (i < 53)) {
|
||||
i++;
|
||||
if (c == '\0')
|
||||
c = ' ';
|
||||
putc(c, stdout);
|
||||
}
|
||||
if (i==0)
|
||||
fprintf(stdout, "%s", p.cmd);
|
||||
fprintf(stdout, "\n");
|
||||
}
|
||||
closedir(dir);
|
||||
exit(TRUE);
|
||||
closedir(dir);
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user