sys/src/9/bcm64/devgen.c

   1 #include        "u.h"
   2 #include        "../port/lib.h"
   3 #include        "mem.h"
   4 #include        "dat.h"
   5 #include        "fns.h"
   6 #include        "../port/error.h"
   7
   8 /*
   9  * the zeroth element of the table MUST be the directory itself for ..
  10 */
  11 int
  12 devgen(Chan *c, char *name, Dirtab *tab, int ntab, int i, Dir *dp)
  13 {
  14         if(tab == 0)
  15                 return -1;
  16         if(i == DEVDOTDOT){
  17                 /* nothing */
  18         }else if(name){
  19                 for(i=1; i<ntab; i++)
  20                         if(strcmp(tab[i].name, name) == 0)
  21                                 break;
  22                 if(i==ntab)
  23                         return -1;
  24                 tab += i;
  25         }else{
  26                 /* skip over the first element, that for . itself */
  27                 i++;
  28                 if(i >= ntab)
  29                         return -1;
  30                 tab += i;
  31         }
  32         devdir(c, tab->qid, tab->name, tab->length, eve, tab->perm, dp);
  33         return 1;
  34 }