static void print_sem(int semid)
{
struct semid_ds semds;
struct ipc_perm *ipcp = &semds.sem_perm;
union semun arg;
unsigned int i;
arg.buf = &semds;
if (semctl(semid, 0, IPC_STAT, arg)) {
bb_perror_msg("semctl");
return;
}
printf("\nSemaphore Array semid=%d\n"
"uid=%d\t gid=%d\t cuid=%d\t cgid=%d\n"
"mode=%#o, access_perms=%#o\n"
"nsems = %ld\n"
"otime = %-26.24s\n",
semid,
ipcp->uid, ipcp->gid, ipcp->cuid, ipcp->cgid,
ipcp->mode, ipcp->mode & 0777,
(long) semds.sem_nsems,
semds.sem_otime ? ctime(&semds.sem_otime) : "Not set");
printf("ctime = %-26.24s\n"
"%-10s %-10s %-10s %-10s %-10s\n",
ctime(&semds.sem_ctime),
"semnum", "value", "ncount", "zcount", "pid");
arg.val = 0;
for (i = 0; i < semds.sem_nsems; i++) {
int val, ncnt, zcnt, pid;
val = semctl(semid, i, GETVAL, arg);
ncnt = semctl(semid, i, GETNCNT, arg);
zcnt = semctl(semid, i, GETZCNT, arg);
pid = semctl(semid, i, GETPID, arg);
if (val < 0 || ncnt < 0 || zcnt < 0 || pid < 0) {
bb_perror_msg_and_die("semctl");
}
printf("%-10u %-10d %-10d %-10d %-10d\n", i, val, ncnt, zcnt, pid);
}
bb_putchar('\n');
}
/*
* Load the filesystem database from /etc/fstab
*/
static void load_fs_info(const char *filename)
{
FILE *f;
char buf[1024];
int lineno = 0;
int old_fstab = 1;
struct fs_info *fs;
if ((f = fopen(filename, "r")) == NULL) {
bb_perror_msg("WARNING: cannot open %s", filename);
return;
}
while (!feof(f)) {
lineno++;
if (!fgets(buf, sizeof(buf), f))
break;
buf[sizeof(buf)-1] = 0;
if (parse_fstab_line(buf, &fs) < 0) {
bb_error_msg("WARNING: bad format "
"on line %d of %s\n", lineno, filename);
continue;
}
if (!fs)
continue;
if (fs->passno < 0)
fs->passno = 0;
else
old_fstab = 0;
}
fclose(f);
if (old_fstab) {
fputs("\007\007\007"
"WARNING: Your /etc/fstab does not contain the fsck passno\n"
" field. I will kludge around things for you, but you\n"
" should fix your /etc/fstab file as soon as you can.\n\n", stderr);
for (fs = filesys_info; fs; fs = fs->next) {
fs->passno = 1;
}
}
}
static int
do_sendto(int fd,
const struct sockaddr *from, const struct sockaddr *to, socklen_t addrlen,
msg_t *msg, ssize_t len)
{
ssize_t ret;
errno = 0;
if (!from) {
ret = sendto(fd, msg, len, MSG_DONTWAIT, to, addrlen);
} else {
ret = send_to_from(fd, msg, len, MSG_DONTWAIT, to, from, addrlen);
}
if (ret != len) {
bb_perror_msg("send failed");
return -1;
}
return 0;
}
/* Returns kernel version encoded as major*65536 + minor*256 + patch,
* so, for example, to check if the kernel is greater than 2.2.11:
* if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> }
*/
int get_kernel_revision(void)
{
struct utsname name;
char *s;
int i, r;
if (uname(&name) == -1) {
bb_perror_msg("cannot get system information");
return (0);
}
s = name.release;
r = 0;
for (i=0 ; i<3 ; i++) {
r = r * 256 + atoi(strtok(s, "."));
s = NULL;
}
return r;
}
static void ping4(len_and_sockaddr *lsa)
{
struct icmp *pkt;
int c;
pkt = (struct icmp *) G.packet;
/*memset(pkt, 0, sizeof(G.packet)); already is */
pkt->icmp_type = ICMP_ECHO;
pkt->icmp_id = G.myid;
pkt->icmp_cksum = inet_cksum((uint16_t *) pkt, sizeof(G.packet));
xsendto(pingsock, G.packet, DEFDATALEN + ICMP_MINLEN, &lsa->u.sa, lsa->len);
/* listen for replies */
while (1) {
#if 0
struct sockaddr_in from;
socklen_t fromlen = sizeof(from);
c = recvfrom(pingsock, G.packet, sizeof(G.packet), 0,
(struct sockaddr *) &from, &fromlen);
#else
c = recv(pingsock, G.packet, sizeof(G.packet), 0);
#endif
if (c < 0) {
if (errno != EINTR)
bb_perror_msg("recvfrom");
continue;
}
if (c >= 76) { /* ip + icmp */
struct iphdr *iphdr = (struct iphdr *) G.packet;
pkt = (struct icmp *) (G.packet + (iphdr->ihl << 2)); /* skip ip hdr */
if (pkt->icmp_id != G.myid)
continue; /* not our ping */
if (pkt->icmp_type == ICMP_ECHOREPLY)
break;
}
}
if (ENABLE_FEATURE_CLEAN_UP)
close(pingsock);
}
static void ping6(len_and_sockaddr *lsa)
{
struct icmp6_hdr *pkt;
int c;
int sockopt;
pkt = (struct icmp6_hdr *) G.packet;
/*memset(pkt, 0, sizeof(G.packet)); already is */
pkt->icmp6_type = ICMP6_ECHO_REQUEST;
pkt->icmp6_id = G.myid;
sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
setsockopt_int(pingsock, SOL_RAW, IPV6_CHECKSUM, sockopt);
xsendto(pingsock, G.packet, DEFDATALEN + sizeof(struct icmp6_hdr), &lsa->u.sa, lsa->len);
/* listen for replies */
while (1) {
#if 0
struct sockaddr_in6 from;
socklen_t fromlen = sizeof(from);
c = recvfrom(pingsock, G.packet, sizeof(G.packet), 0,
(struct sockaddr *) &from, &fromlen);
#else
c = recv(pingsock, G.packet, sizeof(G.packet), 0);
#endif
if (c < 0) {
if (errno != EINTR)
bb_perror_msg("recvfrom");
continue;
}
if (c >= ICMP_MINLEN) { /* icmp6_hdr */
if (pkt->icmp6_id != G.myid)
continue; /* not our ping */
if (pkt->icmp6_type == ICMP6_ECHO_REPLY)
break;
}
}
if (ENABLE_FEATURE_CLEAN_UP)
close(pingsock);
}
/* Wrapper which restarts poll on EINTR or ENOMEM.
* On other errors does perror("poll") and returns.
* Warning! May take longer than timeout_ms to return! */
int FAST_FUNC safe_poll(struct pollfd *ufds, nfds_t nfds, int timeout)
{
while (1) {
int n = poll(ufds, nfds, timeout);
if (n >= 0)
return n;
/* Make sure we inch towards completion */
if (timeout > 0)
timeout--;
/* E.g. strace causes poll to return this */
if (errno == EINTR)
continue;
/* Kernel is very low on memory. Retry. */
/* I doubt many callers would handle this correctly! */
if (errno == ENOMEM)
continue;
bb_perror_msg("poll");
return n;
}
}
static int do_del_ioctl(char *basedev, struct ip_tunnel_parm *p)
{
struct ifreq ifr;
int fd;
int err;
if (p->name[0]) {
strcpy(ifr.ifr_name, p->name);
} else {
strcpy(ifr.ifr_name, basedev);
}
ifr.ifr_ifru.ifru_data = (void*)p;
fd = socket(AF_INET, SOCK_DGRAM, 0);
err = ioctl(fd, SIOCDELTUNNEL, &ifr);
if (err) {
bb_perror_msg("ioctl");
}
close(fd);
return err;
}
int mkfifo_main(int argc, char **argv)
{
mode_t mode;
int retval = EXIT_SUCCESS;
mode = getopt_mk_fifo_nod(argc, argv);
if (!*(argv += optind)) {
bb_show_usage();
}
do {
if (mkfifo(*argv, mode) < 0) {
bb_perror_msg("%s", *argv); /* Avoid multibyte problems. */
retval = EXIT_FAILURE;
}
} while (*++argv);
return retval;
}
int FAST_FUNC cp_mv_stat2(const char *fn, struct stat *fn_stat, stat_func sf)
{
if (sf(fn, fn_stat) < 0) {
if (errno != ENOENT) {
#if ENABLE_FEATURE_VERBOSE_CP_MESSAGE
if (errno == ENOTDIR) {
bb_error_msg("cannot stat '%s': Path has non-directory component", fn);
return -1;
}
#endif
bb_perror_msg("cannot stat '%s'", fn);
return -1;
}
return 0;
}
if (S_ISDIR(fn_stat->st_mode)) {
return 3;
}
return 1;
}
int dumpkmap_main(int argc, char **argv)
{
struct kbentry ke;
int i, j, fd;
char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
if (argc >= 2 && *argv[1] == '-')
bb_show_usage();
fd = bb_xopen(CURRENT_VC, O_RDWR);
write(1, magic, 7);
/* Here we want to set everything to 0 except for indexes:
* [0-2] [4-6] [8-10] [12] */
memset(flags, 0x00, MAX_NR_KEYMAPS);
memset(flags, 0x01, 13);
flags[3] = flags[7] = flags[11] = 0;
/* dump flags */
write(1, flags, MAX_NR_KEYMAPS);
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
if (flags[i] == 1) {
for (j = 0; j < NR_KEYS; j++) {
ke.kb_index = j;
ke.kb_table = i;
if (ioctl(fd, KDGKBENT, &ke) < 0) {
bb_perror_msg("ioctl failed with %s, %s, %p",
(char *)&ke.kb_index,
(char *)&ke.kb_table,
&ke.kb_value);
} else {
write(1, (void*)&ke.kb_value, 2);
}
}
}
}
close(fd);
return EXIT_SUCCESS;
}
static void
do_stop(void)
{
char what[1024];
struct pid_list *p;
int killed = 0;
do_procinit();
if (cmdname)
strcpy(what, cmdname);
else if (execname)
strcpy(what, execname);
else if (pidfile)
sprintf(what, "process in pidfile `%.200s'", pidfile);
else if (userspec)
sprintf(what, "process(es) owned by `%s'", userspec);
else
bb_error_msg_and_die ("internal error, please report");
if (!found) {
if (!quiet)
printf("no %s found; none killed.\n", what);
return;
}
for (p = found; p; p = p->next) {
if (kill(p->pid, signal_nr) == 0) {
p->pid = -p->pid;
killed++;
} else {
bb_perror_msg("warning: failed to kill %d", p->pid);
}
}
if (!quiet && killed) {
printf("stopped %s (pid", what);
for (p = found; p; p = p->next)
if(p->pid < 0)
printf(" %d", -p->pid);
printf(").\n");
}
}
/**
* Broadcast an ARP packet.
*/
static void arp(
/* int op, - always ARPOP_REQUEST */
/* const struct ether_addr *source_eth, - always ð_addr */
struct in_addr source_ip,
const struct ether_addr *target_eth, struct in_addr target_ip)
{
enum { op = ARPOP_REQUEST };
#define source_eth (ð_addr)
struct arp_packet p;
memset(&p, 0, sizeof(p));
// ether header
p.eth.ether_type = htons(ETHERTYPE_ARP);
memcpy(p.eth.ether_shost, source_eth, ETH_ALEN);
memset(p.eth.ether_dhost, 0xff, ETH_ALEN);
// arp request
p.arp.arp_hrd = htons(ARPHRD_ETHER);
p.arp.arp_pro = htons(ETHERTYPE_IP);
p.arp.arp_hln = ETH_ALEN;
p.arp.arp_pln = 4;
p.arp.arp_op = htons(op);
memcpy(&p.arp.arp_sha, source_eth, ETH_ALEN);
memcpy(&p.arp.arp_spa, &source_ip, sizeof(p.arp.arp_spa));
memcpy(&p.arp.arp_tha, target_eth, ETH_ALEN);
memcpy(&p.arp.arp_tpa, &target_ip, sizeof(p.arp.arp_tpa));
// send it
// Even though sock_fd is already bound to saddr, just send()
// won't work, because "socket is not connected"
// (and connect() won't fix that, "operation not supported").
// Thus we sendto() to saddr. I wonder which sockaddr
// (from bind() or from sendto()?) kernel actually uses
// to determine iface to emit the packet from...
if (sendto(sock_fd, &p, sizeof(p), 0, &saddr, sizeof(saddr)) < 0) {
bb_perror_msg("sendto");
cleanup(EXIT_FAILURE);
}
#undef source_eth
}
static ssize_t tail_read(int fd, char *buf, size_t count)
{
ssize_t r;
off_t current;
struct stat sbuf;
/* /proc files report zero st_size, don't lseek them. */
if (fstat(fd, &sbuf) == 0 && sbuf.st_size > 0) {
current = lseek(fd, 0, SEEK_CUR);
if (sbuf.st_size < current)
xlseek(fd, 0, SEEK_SET);
}
r = full_read(fd, buf, count);
if (r < 0) {
bb_perror_msg(bb_msg_read_error);
G.exitcode = EXIT_FAILURE;
}
return r;
}
static int fuser_kill_pid_list(pid_list *plist, int sig)
{
pid_list *curr = plist;
pid_t mypid = getpid();
int success = 1;
if (plist == NULL)
return 0;
while (curr != NULL) {
if (curr->pid > 0 && curr->pid != mypid) {
printf("\r\nkill pid: %d.\n", curr->pid);
if (kill(curr->pid, sig) != 0) {
bb_perror_msg("kill pid '%d'", curr->pid);
success = 0;
}
}
curr = curr->next;
}
return success;
}
/* create (sym)links for each applet */
static void install_links(const char *busybox, int use_symbolic_links)
{
__link_f Link = link;
char *fpc;
int i;
int rc;
if (use_symbolic_links)
Link = symlink;
for (i = 0; applets[i].name != NULL; i++) {
fpc = concat_path_file(
install_dir[applets[i].location], applets[i].name);
rc = Link(busybox, fpc);
if (rc!=0 && errno!=EEXIST) {
bb_perror_msg("%s", fpc);
}
free(fpc);
}
}
extern char *xreadlink(const char *path)
{
static const int GROWBY = 80; /* how large we will grow strings by */
char *buf = NULL;
int bufsize = 0, readsize = 0;
do {
buf = xrealloc(buf, bufsize += GROWBY);
readsize = readlink(path, buf, bufsize); /* 1st try */
if (readsize == -1) {
bb_perror_msg("%s", path);
return NULL;
}
}
while (bufsize < readsize + 1);
buf[readsize] = '\0';
return buf;
}
static void print_queuelen(char *name)
{
struct ifreq ifr;
int s;
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0)
return;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
bb_perror_msg("SIOCGIFXQLEN");
close(s);
return;
}
close(s);
if (ifr.ifr_qlen)
printf("qlen %d", ifr.ifr_qlen);
}
static ssize_t tail_read(int fd, char *buf, size_t count)
{
ssize_t r;
off_t current;
struct stat sbuf;
/* (A good comment is missing here) */
current = lseek(fd, 0, SEEK_CUR);
/* /proc files report zero st_size, don't lseek them. */
if (fstat(fd, &sbuf) == 0 && sbuf.st_size)
if (sbuf.st_size < current)
lseek(fd, 0, SEEK_SET);
r = full_read(fd, buf, count);
if (r < 0) {
bb_perror_msg(bb_msg_read_error);
G.status = EXIT_FAILURE;
}
return r;
}
char *xmalloc_readlink_or_warn(const char *path)
{
enum { GROWBY = 80 }; /* how large we will grow strings by */
char *buf = NULL;
int bufsize = 0, readsize = 0;
do {
buf = xrealloc(buf, bufsize += GROWBY);
readsize = readlink(path, buf, bufsize); /* 1st try */
if (readsize == -1) {
bb_perror_msg("%s", path);
free(buf);
return NULL;
}
}
while (bufsize < readsize + 1);
buf[readsize] = '\0';
return buf;
}
static void do_info(const char *file, const char *name, void (*proc)(int, const char *))
{
int lnr = 0;
FILE *procinfo;
procinfo = fopen(file, "r");
if (procinfo == NULL) {
if (errno != ENOENT) {
bb_perror_msg("%s", file);
} else {
bb_error_msg("no support for '%s' on this system", name);
}
return;
}
do {
char *buffer = xmalloc_fgets(procinfo);
if (buffer) {
(proc)(lnr++, buffer);
free(buffer);
}
} while (!feof(procinfo));
fclose(procinfo);
}
static unsigned svstatus_print(char *m)
{
int pid;
int normallyup = 0;
struct stat s;
if (stat("down", &s) == -1) {
if (errno != ENOENT) {
bb_perror_msg(WARN"cannot stat %s/down", *service);
return 0;
}
normallyup = 1;
}
pid = (unsigned char) svstatus[15];
pid <<= 8; pid += (unsigned char)svstatus[14];
pid <<= 8; pid += (unsigned char)svstatus[13];
pid <<= 8; pid += (unsigned char)svstatus[12];
tai_unpack(svstatus, &tstatus);
if (pid) {
switch (svstatus[19]) {
case 1: printf(RUN); break;
case 2: printf(FINISH); break;
}
printf("%s: (pid %d) ", m, pid);
}
else {
printf(DOWN"%s: ", m);
}
printf("%lus", (unsigned long)(tnow.sec.x < tstatus.x ? 0 : tnow.sec.x-tstatus.x));
if (pid && !normallyup) printf(", normally down");
if (!pid && normallyup) printf(", normally up");
if (pid && svstatus[16]) printf(", paused");
if (!pid && (svstatus[17] == 'u')) printf(", want up");
if (pid && (svstatus[17] == 'd')) printf(", want down");
if (pid && svstatus[18]) printf(", got TERM");
return pid ? 1 : 2;
}
static void crondlog(const char *ctl, ...)
{
va_list va;
const char *fmt;
int level = (int) (ctl[0] & 0xf);
int type = level == 20 ?
LOG_ERR : ((ctl[0] & 0100) ? LOG_WARNING : LOG_NOTICE);
va_start(va, ctl);
fmt = ctl + 1;
if (level >= LogLevel) {
#ifdef FEATURE_DEBUG_OPT
if (DebugOpt) {
vfprintf(stderr, fmt, va);
} else
#endif
if (LogFile == 0) {
vsyslog(type, fmt, va);
} else {
int logfd = open(LogFile, O_WRONLY | O_CREAT | O_APPEND, 0600);
if (logfd >= 0) {
vdprintf(logfd, fmt, va);
close(logfd);
#ifdef FEATURE_DEBUG_OPT
} else {
bb_perror_msg("Can't open log file");
#endif
}
}
}
va_end(va);
if (ctl[0] & 0200) {
exit(20);
}
}
IF_DESKTOP(long long) int bz_write(bz_stream *strm, void* rbuf, ssize_t rlen, void *wbuf)
{
int n, n2, ret;
strm->avail_in = rlen;
strm->next_in = rbuf;
while (1) {
strm->avail_out = IOBUF_SIZE;
strm->next_out = wbuf;
ret = BZ2_bzCompress(strm, rlen ? BZ_RUN : BZ_FINISH);
if (ret != BZ_RUN_OK /* BZ_RUNning */
&& ret != BZ_FINISH_OK /* BZ_FINISHing, but not done yet */
&& ret != BZ_STREAM_END /* BZ_FINISHed */
) {
bb_error_msg_and_die("internal error %d", ret);
}
n = IOBUF_SIZE - strm->avail_out;
if (n) {
n2 = full_write(STDOUT_FILENO, wbuf, n);
if (n2 != n) {
if (n2 >= 0)
errno = 0; /* prevent bogus error message */
bb_perror_msg(n2 >= 0 ? "short write" : bb_msg_write_error);
return -1;
}
}
if (ret == BZ_STREAM_END)
break;
if (rlen && strm->avail_in == 0)
break;
}
return 0 IF_DESKTOP( + strm->total_out );
}
static int swap_enable_disable(const char *device)
{
int status;
struct stat st;
xstat(device, &st);
/* test for holes */
if (S_ISREG(st.st_mode))
if (st.st_blocks * 512 < st.st_size)
bb_error_msg_and_die("swap file has holes");
if (bb_applet_name[5] == 'n')
status = swapon(device, 0);
else
status = swapoff(device);
if (status != 0) {
bb_perror_msg("%s", device);
return 1;
}
return 0;
}
static void up_iface(void)
{
struct ifreq ifrequest;
if (!G.iface_exists)
return;
set_ifreq_to_ifname(&ifrequest);
if (network_ioctl(SIOCGIFFLAGS, &ifrequest, "getting interface flags") < 0) {
G.iface_exists = 0;
return;
}
if (!(ifrequest.ifr_flags & IFF_UP)) {
ifrequest.ifr_flags |= IFF_UP;
/* Let user know we mess up with interface */
bb_error_msg("upping interface");
if (network_ioctl(SIOCSIFFLAGS, &ifrequest, "setting interface flags") < 0) {
if (errno != ENODEV && errno != EADDRNOTAVAIL)
xfunc_die();
G.iface_exists = 0;
return;
}
}
#if 0 /* why do we mess with IP addr? It's not our business */
if (network_ioctl(SIOCGIFADDR, &ifrequest, "can't get interface address") < 0) {
} else if (ifrequest.ifr_addr.sa_family != AF_INET) {
bb_perror_msg("the interface is not IP-based");
} else {
((struct sockaddr_in*)(&ifrequest.ifr_addr))->sin_addr.s_addr = INADDR_ANY;
network_ioctl(SIOCSIFADDR, &ifrequest, "can't set interface address");
}
network_ioctl(SIOCGIFFLAGS, &ifrequest, "can't get interface flags");
#endif
}
static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo)
{
int src_fd, hash_len, count;
union _ctx_ {
sha1_ctx_t sha1;
md5_ctx_t md5;
} context;
uint8_t *hash_value = NULL;
RESERVE_CONFIG_UBUFFER(in_buf, 4096);
void (*update)(const void*, size_t, void*);
void (*final)(void*, void*);
if (strcmp(filename, "-") == 0) {
src_fd = STDIN_FILENO;
} else if(0 > (src_fd = open(filename, O_RDONLY))) {
bb_perror_msg("%s", filename);
return NULL;
}
/* figure specific hash algorithims */
if (ENABLE_MD5SUM && hash_algo==HASH_MD5) {
md5_begin(&context.md5);
update = (void (*)(const void*, size_t, void*))md5_hash;
final = (void (*)(void*, void*))md5_end;
/*
* 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;
dp = opendir(path);
if (!dp) {
retval = -1;
} else {
while ((de = readdir(dp)) != NULL) {
tmpdir = concat_subpath_file(path, de->d_name);
if (tmpdir == NULL)
continue;
retval2 = stat(tmpdir, &ts);
if (retval2 != 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 + strlen(PROC_PATH),
output);
}
free(tmpdir);
} /* end while */
closedir(dp);
}
return retval;
} /* end sysctl_display_all() */
/**
* Run a script. argv[2] is already NULL.
*/
static int run(char *argv[3], struct in_addr *ip)
{
int status;
char *addr = addr; /* for gcc */
const char *fmt = "%s %s %s" + 3;
VDBG("%s run %s %s\n", intf, argv[0], argv[1]);
if (ip) {
addr = inet_ntoa(*ip);
setenv("ip", addr, 1);
fmt -= 3;
}
bb_info_msg(fmt, argv[1], intf, addr);
status = wait4pid(spawn(argv));
if (status < 0) {
bb_perror_msg("%s %s %s" + 3, argv[1], intf);
return -errno;
}
if (status != 0)
bb_error_msg("script %s %s failed, exitcode=%d", argv[0], argv[1], status);
return status;
}
int copy_file(const char *source, const char *dest, int flags)
{
struct stat source_stat;
struct stat dest_stat;
int dest_exists = 0;
int status = 0;
if ((!(flags & FILEUTILS_DEREFERENCE) &&
lstat(source, &source_stat) < 0) ||
((flags & FILEUTILS_DEREFERENCE) &&
stat(source, &source_stat) < 0)) {
bb_perror_msg("%s", source);
return -1;
}
if (lstat(dest, &dest_stat) < 0) {
if (errno != ENOENT) {
bb_perror_msg("unable to stat `%s'", dest);
return -1;
}
} else {
if (source_stat.st_dev == dest_stat.st_dev &&
source_stat.st_ino == dest_stat.st_ino) {
bb_error_msg("`%s' and `%s' are the same file", source, dest);
return -1;
}
dest_exists = 1;
}
if (S_ISDIR(source_stat.st_mode)) {
DIR *dp;
struct dirent *d;
mode_t saved_umask = 0;
if (!(flags & FILEUTILS_RECUR)) {
bb_error_msg("%s: omitting directory", source);
return -1;
}
/* Create DEST. */
if (dest_exists) {
if (!S_ISDIR(dest_stat.st_mode)) {
bb_error_msg("`%s' is not a directory", dest);
return -1;
}
} else {
mode_t mode;
saved_umask = umask(0);
mode = source_stat.st_mode;
if (!(flags & FILEUTILS_PRESERVE_STATUS))
mode = source_stat.st_mode & ~saved_umask;
mode |= S_IRWXU;
if (mkdir(dest, mode) < 0) {
umask(saved_umask);
bb_perror_msg("cannot create directory `%s'", dest);
return -1;
}
umask(saved_umask);
}
/* Recursively copy files in SOURCE. */
if ((dp = opendir(source)) == NULL) {
bb_perror_msg("unable to open directory `%s'", source);
status = -1;
goto end;
}
while ((d = readdir(dp)) != NULL) {
char *new_source, *new_dest;
new_source = concat_subpath_file(source, d->d_name);
if(new_source == NULL)
continue;
new_dest = concat_path_file(dest, d->d_name);
if (copy_file(new_source, new_dest, flags) < 0)
status = -1;
free(new_source);
free(new_dest);
}
/* closedir have only EBADF error, but "dp" not changes */
closedir(dp);
if (!dest_exists &&
chmod(dest, source_stat.st_mode & ~saved_umask) < 0) {
bb_perror_msg("unable to change permissions of `%s'", dest);
status = -1;
}
} else if (S_ISREG(source_stat.st_mode)) {
int src_fd;
int dst_fd = -1;
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
char *link_name;
if (!(flags & FILEUTILS_DEREFERENCE) &&
is_in_ino_dev_hashtable(&source_stat, &link_name)) {
if (link(link_name, dest) < 0) {
bb_perror_msg("unable to link `%s'", dest);
return -1;
}
return 0;
}
#endif
src_fd = open(source, O_RDONLY);
if (src_fd == -1) {
bb_perror_msg("unable to open `%s'", source);
return(-1);
}
if (dest_exists) {
if (flags & FILEUTILS_INTERACTIVE) {
fprintf(stderr, "%s: overwrite `%s'? ", bb_applet_name, dest);
if (!bb_ask_confirmation()) {
close (src_fd);
return 0;
}
}
dst_fd = open(dest, O_WRONLY|O_TRUNC);
if (dst_fd == -1) {
if (!(flags & FILEUTILS_FORCE)) {
bb_perror_msg("unable to open `%s'", dest);
close(src_fd);
return -1;
}
if (unlink(dest) < 0) {
bb_perror_msg("unable to remove `%s'", dest);
close(src_fd);
return -1;
}
dest_exists = 0;
}
}
if (!dest_exists) {
dst_fd = open(dest, O_WRONLY|O_CREAT, source_stat.st_mode);
if (dst_fd == -1) {
bb_perror_msg("unable to open `%s'", dest);
close(src_fd);
return(-1);
}
}
if (bb_copyfd_eof(src_fd, dst_fd) == -1)
status = -1;
if (close(dst_fd) < 0) {
bb_perror_msg("unable to close `%s'", dest);
status = -1;
}
if (close(src_fd) < 0) {
bb_perror_msg("unable to close `%s'", source);
status = -1;
}
}
else if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
S_ISSOCK(source_stat.st_mode) || S_ISFIFO(source_stat.st_mode) ||
S_ISLNK(source_stat.st_mode)) {
if (dest_exists) {
if((flags & FILEUTILS_FORCE) == 0) {
fprintf(stderr, "`%s' exists\n", dest);
return -1;
}
if(unlink(dest) < 0) {
bb_perror_msg("unable to remove `%s'", dest);
return -1;
}
}
} else {
bb_error_msg("internal error: unrecognized file type");
return -1;
}
if (S_ISBLK(source_stat.st_mode) || S_ISCHR(source_stat.st_mode) ||
S_ISSOCK(source_stat.st_mode)) {
if (mknod(dest, source_stat.st_mode, source_stat.st_rdev) < 0) {
bb_perror_msg("unable to create `%s'", dest);
return -1;
}
} else if (S_ISFIFO(source_stat.st_mode)) {
if (mkfifo(dest, source_stat.st_mode) < 0) {
bb_perror_msg("cannot create fifo `%s'", dest);
return -1;
}
} else if (S_ISLNK(source_stat.st_mode)) {
char *lpath;
lpath = xreadlink(source);
if (symlink(lpath, dest) < 0) {
bb_perror_msg("cannot create symlink `%s'", dest);
return -1;
}
free(lpath);
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
if (flags & FILEUTILS_PRESERVE_STATUS)
if (lchown(dest, source_stat.st_uid, source_stat.st_gid) < 0)
bb_perror_msg("unable to preserve ownership of `%s'", dest);
#endif
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
add_to_ino_dev_hashtable(&source_stat, dest);
#endif
return 0;
}
#ifdef CONFIG_FEATURE_PRESERVE_HARDLINKS
if (! S_ISDIR(source_stat.st_mode)) {
add_to_ino_dev_hashtable(&source_stat, dest);
}
#endif
end:
if (flags & FILEUTILS_PRESERVE_STATUS) {
struct utimbuf times;
times.actime = source_stat.st_atime;
times.modtime = source_stat.st_mtime;
if (utime(dest, ×) < 0)
bb_perror_msg("unable to preserve times of `%s'", dest);
if (chown(dest, source_stat.st_uid, source_stat.st_gid) < 0) {
source_stat.st_mode &= ~(S_ISUID | S_ISGID);
bb_perror_msg("unable to preserve ownership of `%s'", dest);
}
if (chmod(dest, source_stat.st_mode) < 0)
bb_perror_msg("unable to preserve permissions of `%s'", dest);
}
return status;
}