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');
putchar('\n');
bb_fflush_stdout_and_exit(status);
}
//=====================================================
int trans()//转置
{
int i,j,s,t;
int d[4][4]={0};
// if(c[][]==1&&c[][]==1&&c[][]==1&&c[][]==1)
if(line_mark==1)
{
screen_a[m][n-2]=screen_a[m][n-1]=screen_a[m][n+1]=1;
screen_a[m-2][n]=screen_a[m-1][n]=screen_a[m+1][n]=0;
line_mark=0;
find_mark();
printf_full();
return 1;
}
if(line_mark==2)
{
screen_a[m-2][n]=screen_a[m-1][n]=screen_a[m+1][n]=1;
screen_a[m][n-2]=screen_a[m][n-1]=screen_a[m][n+1]=0;
line_mark=0;
find_mark();
printf_full();
return 1;
}
for(i=m,s=2;i<m+3;s--,i++)
for(j=n-1,t=0;j<n+2;t++,j++)
if(screen_a[i][j]<2)
d[t][s]=screen_a[i][j];
// for(i=m-1,s=3;i<4;i++,s--)
// for(j=1,t=1;j<4;j++,t++)
// b[t][s]=c[i][j];
if(d[0][2]==1&&d[1][1]==1&&d[1][2]==1&&d[2][1]==1)
{
d[1][0]=d[2][0]=d[0][1]=1;
d[2][1]=d[0][2]=d[1][2]=0;
}
if(d[0][1]==1&&d[1][1]==1&&d[1][2]==1&&d[2][2]==1)
{
d[0][0]=d[1][0]=d[2][1]=1;
d[1][2]=d[2][2]=d[0][1]=0;
}
if(d[0][2]==1&&d[1][2]==1&&d[2][2]==1&&d[1][1]==1)
{
d[0][1]=d[1][1]=d[2][1]=d[1][0]=1;
d[0][2]=d[1][2]=d[2][2]=0;
}
if(d[0][2]==1&&d[1][2]==1&&d[2][2]==1&&d[2][1]==1)
{
d[0][1]=d[1][1]=d[2][1]=d[2][0]=1;
d[0][2]=d[1][2]=d[2][2]=0;
}
if(d[0][2]==1&&d[1][2]==1&&d[2][2]==1&&d[0][1]==1)
{
d[0][1]=d[1][1]=d[2][1]=d[0][0]=1;
d[0][2]=d[1][2]=d[2][2]=0;
}
for(i=0,s=m;i<3;s++,i++)
for(j=0,t=n-1;j<3;t++,j++)
{
if(d[i][j]==0)
if(screen_a[s][t]>=2)
continue;
screen_a[s][t]=d[i][j];
}
//system("cls");
find_mark();
printf_full();
return 1;
}
extern int id_main(int argc, char **argv)
{
struct passwd *p;
uid_t uid;
gid_t gid;
unsigned long flags;
short status;
#ifdef CONFIG_SELINUX
int is_flask_enabled_flag = is_flask_enabled();
#endif
bb_opt_complementaly = "u~g:g~u";
flags = bb_getopt_ulflags(argc, argv, "rnug");
if ((flags & BB_GETOPT_ERROR)
/* Don't allow -n -r -nr */
|| (flags <= 3 && flags > 0)
/* Don't allow more than one username */
|| (argc > optind + 1))
bb_show_usage();
/* 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]);
/* my_getpwnam is needed because it exits on failure */
uid = my_getpwnam(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) {
/* my_getpwuid and my_getgrgid exit on failure so puts cannot segfault */
puts((flags & JUST_USER) ? my_getpwuid(NULL, uid, -1 ) : my_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 */
/* my_getpwuid doesn't exit on failure here */
status=printf_full(uid, my_getpwuid(NULL, uid, 0), 'u');
putchar(' ');
/* my_getgrgid doesn't exit on failure here */
status|=printf_full(gid, my_getgrgid(NULL, gid, 0), 'g');
#ifdef CONFIG_SELINUX
if(is_flask_enabled_flag) {
security_id_t mysid = getsecsid();
char context[80];
int len = sizeof(context);
context[0] = '\0';
if(security_sid_to_context(mysid, context, &len))
strcpy(context, "unknown");
bb_printf(" context=%s", context);
}
#endif
putchar('\n');
bb_fflush_stdout_and_exit(status);
}
int id_main(int argc, char **argv)
{
struct passwd *p;
uid_t uid;
gid_t gid;
unsigned long flags;
short status;
#ifdef CONFIG_SELINUX
security_context_t scontext;
#endif
/* 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, "rnugZ");
/* 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 */
}
#ifdef CONFIG_SELINUX
if(flags & (JUST_GROUP | JUST_USER | JUST_CONTEXT )) {
#else
if(flags & (JUST_GROUP | JUST_USER )) {
#endif
/* 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 {
if (flags & JUST_USER){
bb_printf("%u\n",uid);
}
if (flags & JUST_GROUP){
bb_printf("%u\n",gid);
}
}
#ifdef CONFIG_SELINUX
if(flags & JUST_CONTEXT){
if( !is_selinux_enabled() ) {
bb_error_msg_and_die("Sorry, --context (-Z) can be used only on "
"a selinux-enabled kernel.\n" );
}
if (argc - optind == 1){
bb_error_msg("cannot print security context when user specified");
bb_fflush_stdout_and_exit(EXIT_FAILURE);
}
if (getcon(&scontext)){
bb_error_msg("can't get process context");
bb_fflush_stdout_and_exit(EXIT_FAILURE);
}
bb_printf("%s\n", scontext);
}
#endif
/* 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);
}