void displayroutes(int noresolve, int netstatfmt)
{
char devname[64], flags[16], sdest[16], sgw[16];
unsigned long int d, g, m;
int flgs, ref, use, metric, mtu, win, ir;
struct sockaddr_in s_addr;
struct in_addr mask;
FILE *fp = bb_xfopen("/proc/net/route", "r");
bb_printf("Kernel IP routing table\n"
"Destination Gateway Genmask"
" Flags %s Iface\n",
netstatfmt ? " MSS Window irtt" : "Metric Ref Use");
if (fscanf(fp, "%*[^\n]\n") < 0) { /* Skip the first line. */
goto ERROR; /* Empty or missing line, or read error. */
}
while (1) {
int r;
r = fscanf(fp, "%63s%lx%lx%X%d%d%d%lx%d%d%d\n",
devname, &d, &g, &flgs, &ref, &use, &metric, &m,
&mtu, &win, &ir);
if (r != 11) {
if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
break;
}
ERROR:
bb_error_msg_and_die("fscanf");
}
if (!(flgs & RTF_UP)) { /* Skip interfaces that are down. */
continue;
}
set_flags(flags, (flgs & IPV4_MASK));
#ifdef RTF_REJECT
if (flgs & RTF_REJECT) {
flags[0] = '!';
}
#endif
memset(&s_addr, 0, sizeof(struct sockaddr_in));
s_addr.sin_family = AF_INET;
s_addr.sin_addr.s_addr = d;
INET_rresolve(sdest, sizeof(sdest), &s_addr,
(noresolve | 0x8000), m); /* Default instead of *. */
s_addr.sin_addr.s_addr = g;
INET_rresolve(sgw, sizeof(sgw), &s_addr,
(noresolve | 0x4000), m); /* Host instead of net. */
mask.s_addr = m;
bb_printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), flags);
if (netstatfmt) {
bb_printf("%5d %-5d %6d %s\n", mtu, win, ir, devname);
} else {
bb_printf("%-6d %-2d %7d %s\n", metric, ref, use, devname);
}
}
}
int df_main(int argc, char **argv)
{
long blocks_used;
long blocks_percent_used;
#ifdef CONFIG_FEATURE_HUMAN_READABLE
unsigned long df_disp_hr = KILOBYTE;
#endif
int status = EXIT_SUCCESS;
unsigned long opt;
FILE *mount_table;
struct mntent *mount_entry;
struct statfs s;
static const char hdr_1k[] = "1k-blocks"; /* default display is kilobytes */
const char *disp_units_hdr = hdr_1k;
#ifdef CONFIG_FEATURE_HUMAN_READABLE
bb_opt_complementally = "h-km:k-hm:m-hk";
opt = bb_getopt_ulflags(argc, argv, "hmk");
if(opt & 1) {
df_disp_hr = 0;
disp_units_hdr = " Size";
}
if(opt & 2) {
df_disp_hr = MEGABYTE;
disp_units_hdr = "1M-blocks";
}
#else
opt = bb_getopt_ulflags(argc, argv, "k");
#endif
bb_printf("Filesystem%11s%-15sUsed Available Use%% Mounted on\n",
"", disp_units_hdr);
mount_table = NULL;
argv += optind;
if (optind >= argc) {
if (!(mount_table = setmntent(bb_path_mtab_file, "r"))) {
bb_perror_msg_and_die(bb_path_mtab_file);
}
}
do {
const char *device;
const char *mount_point;
if (mount_table) {
if (!(mount_entry = getmntent(mount_table))) {
endmntent(mount_table);
break;
}
} else {
if (!(mount_point = *argv++)) {
break;
}
if (!(mount_entry = find_mount_point(mount_point, bb_path_mtab_file))) {
bb_error_msg("%s: can't find mount point.", mount_point);
SET_ERROR:
status = EXIT_FAILURE;
continue;
}
}
device = mount_entry->mnt_fsname;
mount_point = mount_entry->mnt_dir;
if (statfs(mount_point, &s) != 0) {
bb_perror_msg("%s", mount_point);
goto SET_ERROR;
}
if ((s.f_blocks > 0) || !mount_table){
blocks_used = s.f_blocks - s.f_bfree;
blocks_percent_used = 0;
if (blocks_used + s.f_bavail) {
blocks_percent_used = (((long long) blocks_used) * 100
+ (blocks_used + s.f_bavail)/2
) / (blocks_used + s.f_bavail);
}
if (strcmp(device, "rootfs") == 0) {
continue;
} else if (strcmp(device, "/dev/root") == 0) {
/* Adjusts device to be the real root device,
* or leaves device alone if it can't find it */
if ((device = find_block_device("/")) == NULL) {
goto SET_ERROR;
}
}
#ifdef CONFIG_FEATURE_HUMAN_READABLE
bb_printf("%-20s %9s ", device,
make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr));
bb_printf("%9s ",
make_human_readable_str( (s.f_blocks - s.f_bfree),
s.f_bsize, df_disp_hr));
bb_printf("%9s %3ld%% %s\n",
make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr),
blocks_percent_used, mount_point);
#else
bb_printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
device,
kscale(s.f_blocks, s.f_bsize),
kscale(s.f_blocks-s.f_bfree, s.f_bsize),
kscale(s.f_bavail, s.f_bsize),
blocks_percent_used, mount_point);
#endif
}
} while (1);
bb_fflush_stdout_and_exit(status);
}
extern int id_main(int argc, char **argv)
{
struct passwd *p;
uid_t uid;
gid_t gid;
unsigned long flags;
short status;
/* Don't allow -n -r -nr -ug -rug -nug -rnug */
/* Don't allow more than one username */
bb_opt_complementally = "?1:?:u--g:g--u:r?ug:n?ug";
flags = bb_getopt_ulflags(argc, argv, "rnug");
/* This values could be overwritten later */
uid = geteuid();
gid = getegid();
if (flags & PRINT_REAL) {
uid = getuid();
gid = getgid();
}
if(argv[optind]) {
p=getpwnam(argv[optind]);
/* bb_xgetpwnam is needed because it exits on failure */
uid = bb_xgetpwnam(argv[optind]);
gid = p->pw_gid;
/* in this case PRINT_REAL is the same */
}
if(flags & (JUST_GROUP | JUST_USER)) {
/* JUST_GROUP and JUST_USER are mutually exclusive */
if(flags & NAME_NOT_NUMBER) {
/* bb_getpwuid and bb_getgrgid exit on failure so puts cannot segfault */
puts((flags & JUST_USER) ? bb_getpwuid(NULL, uid, -1 ) : bb_getgrgid(NULL, gid, -1 ));
} else {
bb_printf("%u\n",(flags & JUST_USER) ? uid : gid);
}
/* exit */
bb_fflush_stdout_and_exit(EXIT_SUCCESS);
}
/* Print full info like GNU id */
/* bb_getpwuid doesn't exit on failure here */
status=printf_full(uid, bb_getpwuid(NULL, uid, 0), 'u');
putchar(' ');
/* bb_getgrgid doesn't exit on failure here */
status|=printf_full(gid, bb_getgrgid(NULL, gid, 0), 'g');
#ifdef CONFIG_SELINUX
if ( is_selinux_enabled() ) {
security_context_t mysid;
char context[80];
int len = sizeof(context);
getcon(&mysid);
context[0] = '\0';
if (mysid) {
len = strlen(mysid)+1;
safe_strncpy(context, mysid, len);
freecon(mysid);
}else{
safe_strncpy(context, "unknown",8);
}
bb_printf(" context=%s", context);
}
#endif
putchar('\n');
bb_fflush_stdout_and_exit(status);
}
static void INET6_displayroutes(int noresolve)
{
char addr6[128], naddr6[128];
/* In addr6x, we store both 40-byte ':'-delimited ipv6 addresses.
* We read the non-delimited strings into the tail of the buffer
* using fscanf and then modify the buffer by shifting forward
* while inserting ':'s and the nul terminator for the first string.
* Hence the strings are at addr6x and addr6x+40. This generates
* _much_ less code than the previous (upstream) approach. */
char addr6x[80];
char iface[16], flags[16];
int iflags, metric, refcnt, use, prefix_len, slen;
struct sockaddr_in6 snaddr6;
FILE *fp = bb_xfopen("/proc/net/ipv6_route", "r");
bb_printf("Kernel IPv6 routing table\n%-44s%-40s"
"Flags Metric Ref Use Iface\n",
"Destination", "Next Hop");
while (1) {
int r;
r = fscanf(fp, "%32s%x%*s%x%32s%x%x%x%x%s\n",
addr6x+14, &prefix_len, &slen, addr6x+40+7,
&metric, &use, &refcnt, &iflags, iface);
if (r != 9) {
if ((r < 0) && feof(fp)) { /* EOF with no (nonspace) chars read. */
break;
}
ERROR:
bb_error_msg_and_die("fscanf");
}
/* Do the addr6x shift-and-insert changes to ':'-delimit addresses.
* For now, always do this to validate the proc route format, even
* if the interface is down. */
{
int i = 0;
char *p = addr6x+14;
do {
if (!*p) {
if (i==40) { /* nul terminator for 1st address? */
addr6x[39] = 0; /* Fixup... need 0 instead of ':'. */
++p; /* Skip and continue. */
continue;
}
goto ERROR;
}
addr6x[i++] = *p++;
if (!((i+1)%5)) {
addr6x[i++] = ':';
}
} while (i < 40+28+7);
}
if (!(iflags & RTF_UP)) { /* Skip interfaces that are down. */
continue;
}
set_flags(flags, (iflags & IPV6_MASK));
r = 0;
do {
inet_pton(AF_INET6, addr6x + r,
(struct sockaddr *) &snaddr6.sin6_addr);
snaddr6.sin6_family = AF_INET6;
INET6_rresolve(naddr6, sizeof(naddr6),
(struct sockaddr_in6 *) &snaddr6,
#if 0
(noresolve | 0x8000) /* Default instead of *. */
#else
0x0fff /* Apparently, upstream never resolves. */
#endif
);
if (!r) { /* 1st pass */
snprintf(addr6, sizeof(addr6), "%s/%d", naddr6, prefix_len);
r += 40;
} else { /* 2nd pass */
/* Print the info. */
bb_printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
addr6, naddr6, flags, metric, refcnt, use, iface);
break;
}
} while (1);
}
}
