/* Report Unix errors */
#include <stdio.h>
#include <errno.h>

#if 0
extern int sys_nerr;
extern char *sys_errlist[];
#endif

main(argc,argv)
int argc;
char *argv[];

{
    int f,n;

    if (argc==1)
	{
	fprintf(stderr,"%s:usage %s -t|err1 [.. errn]\n",argv[0],argv[0]);
	exit(1);
	}

    if (!strcmp(argv[1],"-t"))
	for(f=0;f<sys_nerr;f++)
	    printf("%3d : %s\n",f,sys_errlist[f]);
    else
	for(f=1;f<argc;f++)
	    {
	    n=strtol(argv[f],(char **)NULL,0);

	    if(n>=sys_nerr)
		fprintf(stderr,"%s:errcode %d invalid!\n",argv[0],n);
	    else
		printf("%3d : %s\n",n,sys_errlist[n]);
	    }
}