ref: 1e013bdb48a4fdea62d916dd666aba98b7004afd
parent: 110219ebfeb778c753a986d0538b7d2db827ad41
author: mkf <mkf@cloud9p.org>
date: Tue Nov 28 08:48:40 EST 2023
fs/vfs.c: import
--- /dev/null
+++ b/fs/vfs.c
@@ -1,0 +1,98 @@
+/*
+ vfs, maybe…
+ You always think you know what you're doing,
+ but you're too slick for your own good.
+ -- Delphi's oracle
+*/
+#include <u.h>
+#include <libc.h>
+#include <vfs.h>
+#include <err.h>
+#include <user.h>
+#include <mem.h>
+
+#include "fstab.h"
+
+ll_t*
+readdir(fs_t *fs, file_t *dir)
+{+ int i;
+ ll_t *t, *flist, *flist_last;
+ file_t *f;
+ char *path;
+
+ path = dir->path;
+ flist = (ll_t*)malloc(sizeof(ll_t));
+
+ flist->val = nil;
+ flist->next = nil;
+
+ flist_last = flist;
+
+ t = fs->files->next;
+ while(t != nil)
+ {+ f = t->val;
+
+ if(!strcmp(path, f->path))
+ {+ lladd(flist_last, f);
+ flist_last = flist_last->next;
+ }
+
+ t = (ll_t*)t->next;
+ }
+
+ return flist;
+}
+
+file_t*
+pathtofile(fs_t *fs, char *path, char *name)
+{+ char *p, *n;
+ ll_t *t;
+ file_t *f;
+
+
+ t = fs->files;
+ if(name == nil) /* dir */
+ {+ while(t != nil)
+ {+ f = (file_t*)t->val;
+ p = f->path;
+ /* n = f->name; */
+ if(!strcmp(path, p))
+ return f;
+
+ t = (ll_t*)t->next;
+ }
+ }
+ else /* file */
+ {+ while(t != nil)
+ {+ f = (file_t*)t->val;
+ p = f->path;
+ n = f->name;
+ /* n = f->name; */
+ if(!strcmp(path, p) && !strcmp(name, n))
+ return f;
+
+ t = (ll_t*)t->next;
+ }
+ }
+
+ return nil;
+}
+
+fs_t*
+getfs(char *path)
+{+ for(int i = 0 ; i < sizeof(fstab) ; i++)
+ {+ if(!strcmp(path, fstab[i].name))
+ return fstab[i].init();
+ }
+ return nil;
+}