Research V6 development

[unix-history] / usr / source / s2 / nice.c

/* nice */
int     nicarg  4;
char    *args[100];
char    string[10000];

main(argc, argv)
int argc;
char *argv[];
{
       int i;
       register char **argp, *strp, *p;

       if(argc > 1 && argv[1][0] == '-') {
               nicarg = atoi(&argv[1][1]);
               argc--;
               argv++;
       }
       if(argc < 2) {
               printf("usage: nice [ -n ] command\n");
               exit(1);
       }
       argc--;
       argv++;
       argp = args;
       strp = string;
       for (i=0; i<9; i++)
               *strp++ = "/usr/bin/"[i];
       for(i=0; i<argc; i++) {
               *argp++ = strp;
               p = *argv++;
               while(*strp++ = *p++);
       }
       *argp = 0;
       nice(nicarg);
       execv(string+9, args);
       execv(string+4, args);
       execv(string, args);
       printf("%s not found\n", string+9);
       exit(1);
}