int fuser_main(int argc UNUSED_PARAM, char **argv)
{
pid_list *plist;
inode_list *ilist;
char **pp;
dev_t dev;
ino_t inode;
unsigned port;
int opt;
int success;
int killsig;
/*
fuser [options] FILEs or PORT/PROTOs
Find processes which use FILEs or PORTs
-m Find processes which use same fs as FILEs
-4 Search only IPv4 space
-6 Search only IPv6 space
-s Silent: just exit with 0 if any processes are found
-k Kill found processes (otherwise display PIDs)
-SIGNAL Signal to send (default: TERM)
*/
/* Handle -SIGNAL. Oh my... */
killsig = SIGTERM;
pp = argv;
while (*++pp) {
char *arg = *pp;
if (arg[0] != '-')
continue;
if (arg[1] == '-' && arg[2] == '\0') /* "--" */
break;
if ((arg[1] == '4' || arg[1] == '6') && arg[2] == '\0')
continue; /* it's "-4" or "-6" */
opt = get_signum(&arg[1]);
if (opt < 0)
continue;
/* "-SIGNAL" option found. Remove it and bail out */
killsig = opt;
do {
pp[0] = arg = pp[1];
pp++;
} while (arg);
break;
}
opt = getopt32(argv, OPTION_STRING);
argv += optind;
ilist = NULL;
pp = argv;
while (*pp) {
char *proto = parse_net_arg(*pp, &port);
if (proto) { /* PORT/PROTO */
ilist = scan_proc_net(proto, port, ilist);
free(proto);
} else { /* FILE */
if (!file_to_dev_inode(*pp, &dev, &inode))
bb_perror_msg_and_die("can't open %s", *pp);
ilist = add_inode(ilist, dev, inode);
}
pp++;
}
plist = scan_proc_pids(ilist); /* changes dir to "/proc" */
if (!plist)
return EXIT_FAILURE;
success = 1;
if (opt & OPT_KILL) {
success = kill_pid_list(plist, killsig);
} else if (!(opt & OPT_SILENT)) {
success = print_pid_list(plist);
}
return (success != 1); /* 0 == success */
}
int fuser_main(int argc UNUSED_PARAM, char **argv)
{
pid_list *plist;
pid_t mypid;
char **pp;
struct stat st;
unsigned port;
int opt;
int exitcode;
int killsig;
/*
fuser [OPTIONS] FILE or PORT/PROTO
Find processes which use FILEs or PORTs
-m Find processes which use same fs as FILEs
-4 Search only IPv4 space
-6 Search only IPv6 space
-s Don't display PIDs
-k Kill found processes
-SIGNAL Signal to send (default: KILL)
*/
/* Handle -SIGNAL. Oh my... */
killsig = SIGKILL; /* yes, the default is not SIGTERM */
pp = argv;
while (*++pp) {
char *arg = *pp;
if (arg[0] != '-')
continue;
if (arg[1] == '-' && arg[2] == '\0') /* "--" */
break;
if ((arg[1] == '4' || arg[1] == '6') && arg[2] == '\0')
continue; /* it's "-4" or "-6" */
opt = get_signum(&arg[1]);
if (opt < 0)
continue;
/* "-SIGNAL" option found. Remove it and bail out */
killsig = opt;
do {
pp[0] = arg = pp[1];
pp++;
} while (arg);
break;
}
opt_complementary = "-1"; /* at least one param */
opt = getopt32(argv, OPTION_STRING);
argv += optind;
pp = argv;
while (*pp) {
/* parse net arg */
char path[20], tproto[5];
if (sscanf(*pp, "%u/%4s", &port, tproto) != 2)
goto file;
sprintf(path, "/proc/net/%s", tproto);
if (access(path, R_OK) != 0) { /* PORT/PROTO */
scan_proc_net(path, port);
} else { /* FILE */
file:
xstat(*pp, &st);
add_inode(&st);
}
pp++;
}
scan_proc_pids(); /* changes dir to "/proc" */
mypid = getpid();
plist = G.pid_list_head;
while (1) {
if (!plist)
return EXIT_FAILURE;
if (plist->pid != mypid)
break;
plist = plist->next;
}
exitcode = EXIT_SUCCESS;
do {
if (plist->pid != mypid) {
if (opt & OPT_KILL) {
if (kill(plist->pid, killsig) != 0) {
bb_perror_msg("kill pid %u", (unsigned)plist->pid);
exitcode = EXIT_FAILURE;
}
}
if (!(opt & OPT_SILENT)) {
printf("%u ", (unsigned)plist->pid);
}
}
plist = plist->next;
} while (plist);
if (!(opt & (OPT_SILENT))) {
bb_putchar('\n');
}
return exitcode;
}