#include <lib9.h>#include <ctype.h> extern	int	shell_exec(void (*)(void *), void *, char *, char **, int);extern	int 	main(int, char **); /* * libc routines *//*#define ctime		kctime#define asctime		kasctime#define localtime	klocaltime#define gmtime		kgmtime*/extern  Tm*	gmtime(long);extern  Tm*	localtime(long);extern  char*	asctime(Tm*);extern  char*	ctime(long);extern  int	needsrcquote(int); /* * commands */ #define main 		basename_main#define cmd_source      "cmd/basename.c"#include                "cmd.h" #define main		cal_main#define cmd_source      "cmd/cal.c"#include                "cmd.h" //#define main		calls_main//#define cmd_source      "cmd/calls.c"//#include                "cmd.h" #define main		cat_main#define cmd_source      "cmd/cat.c"#include                "cmd.h" #define main		chgrp_main#define cmd_source      "cmd/chgrp.c"#include                "cmd.h" #define main		chmod_main#define cmd_source      "cmd/chmod.c"#include                "cmd.h" #define main		comm_main#define copy		comm_copy#define cmd_source      "cmd/comm.c"#include                "cmd.h"#undef	copy #define main		cp_main#define copy		cp_copy#define copy1		cp_copy1#define cmd_source      "cmd/cp.c"#include                "cmd.h"#undef	copy#undef	copy1 #define main		du_main#define warn		du_warn#define usage		du_usage#define cmd_source	"cmd/du.c"#undef warn#undef usage#include                "cmd.h" #define main		echo_main#define cmd_source      "cmd/echo.c"#include                "cmd.h" //#define main		join_main//#define cmd_source      "cmd/join.c"//#include                "cmd.h" #define main		ls_main#define cmd_source	"cmd/ls.c"#include		"cmd.h" #define main		mv_main#define samefile	mv_samefile#define copy1		mv_copy1#define cmd_source	"cmd/mv.c"#include		"cmd.h"#undef 	samefile#undef 	copy1/*#define	main		ns_main#define usage		ns_usage#define stdout		ns_stdout#define cmd_source	"cmd/ns.c"//#include                "cmd.h"#undef usage#undef stdout*/ #define main 		sh_main#define fork()		( shell_exec(redirect, np, np->argv[0], &np->argv[0], 2) )#define exec(c,arg)	(-1)#define wait(...)	( memcpy(malloc(sizeof(Waitmsg)), &((Waitmsg) {.pid = 2, .msg = "xwait"}), sizeof(Waitmsg)) )#define waitpid(...)	(-1)#define Node		sh_Node#define alloc		sh_alloc#define error(s,t)	sh_error(s,t)#define cmd_source      "cmd/sh.C"#include                "cmd.h"#undef	fork#undef	exec#undef	waitpid#undef	Node#undef	alloc#undef	error #define	main		sort_main#define cmd_source	"cmd/sort.c"#include                "cmd.h" #define	main		tr_main#define f		tf_f#define t		tf_t#define usage		tr_usage#define cmd_source	"cmd/tr.c"#include                "cmd.h"#undef usage #define	main		uniq_main#define skip		uniq_skip#define cmd_source	"cmd/uniq.c"#include                "cmd.h" //#define	main		xd_main//#define cmd_source	"cmd/xd.c"//#include                "cmd.h" int shell_exec(void (*f)(void *), void *f_args, char *cmd, char **argv, int pid) {  int fd[] =  { _DUP(0, -1), _DUP(1, -1), _DUP(2, -1) };  int argc = 0;  while (argv[++argc]);   void (*m)(int, char**);  if (!strcmp(argv[0], "basename"))  m = basename_main;  else if (!strcmp(argv[0], "cal"))  m = cal_main;  else if (!strcmp(argv[0], "cat"))  m = cat_main;  //else if (!strcmp(argv[0], "cc"))   m = cc_main;  else if (!strcmp(argv[0], "comm")) m = comm_main;  else if (!strcmp(argv[0], "du"))   m = du_main;  else if (!strcmp(argv[0], "echo")) m = echo_main;  else if (!strcmp(argv[0], "ls"))   m = ls_main;  else if (!strcmp(argv[0], "sort")) m = sort_main;  else return -1;   f(f_args);  //if (!setjmp(exit_buf[exit_level++])) {    m(argc, argv);  //}   _DUP(fd[0], 0); _CLOSE(fd[0]);  _DUP(fd[1], 1); _CLOSE(fd[1]);  _DUP(fd[2], 2); _CLOSE(fd[2]);  return pid;} #ifdef __wasm32__#undef main#include <stdio.h>extern void _fdinit(char *, char *); int main(int argc, char *argv[]) {	_fdinit(0, 0);	printf("printf working: argc=%d exp(1.0)=%g cos(0.0)=%g\n" , argc, exp(1.0), cos(0.0));	sh_main(argc, argv);	return 0;}#endif