const char *
u_signal_names(const char *str_sig, int *signo, int startnum)
{
static char retstr[16];
const struct signal_name *s = signames;
static const char prefix[] = "SIG";
const char *sptr;
if(startnum)
s++;
if(str_sig==NULL) {
while (s->name != 0) {
if(s->number == *signo)
break;
s++;
}
} else {
if (isdigit(((unsigned char)*str_sig))) {
char *endp;
long int sn = strtol(str_sig, &endp, 10);
/* test correct and overflow */
if(*endp == 0 && sn >= 0 && sn < NSIG) {
*signo = (int)sn;
/* test for unnamed */
sptr = u_signal_names(0, signo, 0);
if(sptr==NULL)
return NULL;
if(sn!=0)
sptr += 3;
return sptr;
}
} else {
sptr = str_sig;
while (s->name != 0) {
if (strcasecmp(s->name, sptr) == 0) {
*signo = s->number;
if(startnum<0) {
sprintf(retstr, "%d", *signo);
return retstr;
}
break;
}
if(s!=signames && sptr == str_sig &&
strncasecmp(sptr, prefix, 3) == 0) {
sptr += 3; /* strlen(prefix) */
continue;
}
sptr = str_sig;
s++;
}
}
}
if(s->name==0)
return NULL;
if(s!=signames)
strcpy(retstr, prefix);
else
retstr[0] = 0;
return strcat(retstr, s->name);
}
extern int kill_main(int argc, char **argv)
{
int whichApp, sig = SIGTERM, quiet, errors;
const char *name;
#ifdef BB_KILLALL
/* Figure out what we are trying to do here */
whichApp = (strcmp(applet_name, "killall") == 0)? KILLALL : KILL;
#else
whichApp = KILL;
#endif
errors=0;
quiet=0;
argc--;
argv++;
/* Parse any options */
if (argc < 1)
show_usage();
while (argc > 0 && **argv == '-') {
while (*++(*argv)) {
switch (**argv) {
#ifdef BB_KILLALL
case 'q':
quiet++;
break;
#endif
case 'l':
if(argc>1) {
for(argv++; *argv; argv++) {
name = u_signal_names(*argv, &sig, -1);
if(name!=NULL)
printf("%s\n", name);
}
} else {
int col = 0;
for(sig=1; sig < NSIG; sig++) {
name = u_signal_names(0, &sig, 1);
if(name==NULL) /* unnamed */
continue;
col += printf("%2d) %-16s", sig, name);
if (col > 60) {
printf("\n");
col = 0;
}
}
printf("\n");
}
return EXIT_SUCCESS;
case '-':
show_usage();
default:
name = u_signal_names(*argv, &sig, 0);
if(name==NULL)
error_msg_and_die( "bad signal name: %s", *argv);
argc--;
argv++;
goto do_it_now;
}
argc--;
argv++;
}
}
do_it_now:
if (whichApp == KILL) {
/* Looks like they want to do a kill. Do that */
while (--argc >= 0) {
int pid;
if (!isdigit(**argv))
perror_msg_and_die( "Bad PID");
pid = strtol(*argv, NULL, 0);
if (kill(pid, sig) != 0) {
perror_msg( "Could not kill pid '%d'", pid);
errors++;
}
argv++;
}
}
#ifdef BB_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)
error_msg( "%s: no process killed", *argv);
} else {
for(; *pidList!=0; pidList++) {
if (*pidList==myPid)
continue;
if (kill(*pidList, sig) != 0) {
errors++;
if (!quiet)
perror_msg( "Could not kill pid '%d'", *pidList);
}
}
}
/* Note that we don't bother to free the memory
* allocated in find_pid_by_name(). It will be freed
* upon exit, so we can save a byte or two */
argv++;
}
}
#endif
return errors;
}
extern int kill_main(int argc, char **argv)
{
int whichApp, signo = SIGTERM, quiet = 0;
const char *name;
int errors = 0;
#ifdef CONFIG_KILLALL
/* 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;
}
/* 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;
}
}
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;
}
