UNIX 6th Ed. - /usr/sys/ken/sysent.c

   1: #
   2: /*
   3:  */
   4: 
   5: /*
   6:  * This table is the switch used to transfer
   7:  * to the appropriate routine for processing a system call.
   8:  * Each row contains the number of arguments expected
   9:  * and a pointer to the routine.
  10:  */
  11: int sysent[]
  12: {
  13:     0, &nullsys,            /*  0 = indir */
  14:     0, &rexit,          /*  1 = exit */
  15:     0, &fork,           /*  2 = fork */
  16:     2, &read,           /*  3 = read */
  17:     2, &write,          /*  4 = write */
  18:     2, &open,           /*  5 = open */
  19:     0, &close,          /*  6 = close */
  20:     0, &wait,           /*  7 = wait */
  21:     2, &creat,          /*  8 = creat */
  22:     2, &link,           /*  9 = link */
  23:     1, &unlink,         /* 10 = unlink */
  24:     2, &exec,           /* 11 = exec */
  25:     1, &chdir,          /* 12 = chdir */
  26:     0, &gtime,          /* 13 = time */
  27:     3, &mknod,          /* 14 = mknod */
  28:     2, &chmod,          /* 15 = chmod */
  29:     2, &chown,          /* 16 = chown */
  30:     1, &sbreak,         /* 17 = break */
  31:     2, &stat,           /* 18 = stat */
  32:     2, &seek,           /* 19 = seek */
  33:     0, &getpid,         /* 20 = getpid */
  34:     3, &smount,         /* 21 = mount */
  35:     1, &sumount,            /* 22 = umount */
  36:     0, &setuid,         /* 23 = setuid */
  37:     0, &getuid,         /* 24 = getuid */
  38:     0, &stime,          /* 25 = stime */
  39:     3, &ptrace,         /* 26 = ptrace */
  40:     0, &nosys,          /* 27 = x */
  41:     1, &fstat,          /* 28 = fstat */
  42:     0, &nosys,          /* 29 = x */
  43:     1, &nullsys,            /* 30 = smdate; inoperative */
  44:     1, &stty,           /* 31 = stty */
  45:     1, &gtty,           /* 32 = gtty */
  46:     0, &nosys,          /* 33 = x */
  47:     0, &nice,           /* 34 = nice */
  48:     0, &sslep,          /* 35 = sleep */
  49:     0, &sync,           /* 36 = sync */
  50:     1, &kill,           /* 37 = kill */
  51:     0, &getswit,            /* 38 = switch */
  52:     0, &nosys,          /* 39 = x */
  53:     0, &nosys,          /* 40 = x */
  54:     0, &dup,            /* 41 = dup */
  55:     0, &pipe,           /* 42 = pipe */
  56:     1, &times,          /* 43 = times */
  57:     4, &profil,         /* 44 = prof */
  58:     0, &nosys,          /* 45 = tiu */
  59:     0, &setgid,         /* 46 = setgid */
  60:     0, &getgid,         /* 47 = getgid */
  61:     2, &ssig,           /* 48 = sig */
  62:     0, &nosys,          /* 49 = x */
  63:     0, &nosys,          /* 50 = x */
  64:     0, &nosys,          /* 51 = x */
  65:     0, &nosys,          /* 52 = x */
  66:     0, &nosys,          /* 53 = x */
  67:     0, &nosys,          /* 54 = x */
  68:     0, &nosys,          /* 55 = x */
  69:     0, &nosys,          /* 56 = x */
  70:     0, &nosys,          /* 57 = x */
  71:     0, &nosys,          /* 58 = x */
  72:     0, &nosys,          /* 59 = x */
  73:     0, &nosys,          /* 60 = x */
  74:     0, &nosys,          /* 61 = x */
  75:     0, &nosys,          /* 62 = x */
  76:     0, &nosys           /* 63 = x */
  77: };

Defined variables