github.com/xushiwei/go@v0.0.0-20130601165731-2b9d83f45bc9/src/cmd/dist/main.c (about)

     1  // Copyright 2012 The Go Authors.  All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  #include "a.h"
     6  
     7  int vflag;
     8  char *argv0;
     9  
    10  // cmdtab records the available commands.
    11  static struct {
    12  	char *name;
    13  	void (*f)(int, char**);
    14  } cmdtab[] = {
    15  	{"banner", cmdbanner},
    16  	{"bootstrap", cmdbootstrap},
    17  	{"clean", cmdclean},
    18  	{"env", cmdenv},
    19  	{"install", cmdinstall},
    20  	{"version", cmdversion},
    21  };
    22  
    23  // The OS-specific main calls into the portable code here.
    24  void
    25  xmain(int argc, char **argv)
    26  {
    27  	int i;
    28  
    29  	if(argc <= 1)
    30  		usage();
    31  	
    32  	for(i=0; i<nelem(cmdtab); i++) {
    33  		if(streq(cmdtab[i].name, argv[1])) {
    34  			cmdtab[i].f(argc-1, argv+1);
    35  			return;
    36  		}
    37  	}
    38  
    39  	xprintf("unknown command %s\n", argv[1]);
    40  	usage();
    41  }