serve simple file directories over 9p

xrxs.c

@@ -4,6 +4,10 @@
 #include <thread.h>
 #include <9p.h>
 #include <stdio.h>
+#include <dirent.h>
+#include <libString.h>
+
+#define CARTSLOC "./carts/"
 
 /* clang-format off */
 
@@ -119,6 +123,40 @@ void fsdestroyfile(File* f) {
   }
 }
 
+String** listdir(char* path) {
+  String** self = malloc(128 * sizeof(String*));
+  DIR* dir;
+  struct dirent* ent;
+  int i = 0;
+  char* c;
+  if ((dir = opendir(path)) != NULL) {
+    while ((ent = readdir(dir)) != NULL) {
+      c = ent->d_name;
+      if (scmp(c, ".") || scmp(c, "..")) {
+        continue;
+      }
+      self[i] = s_new();
+
+      while (*c) {
+        s_putc(self[i], *c++);
+      }
+      s_terminate(self[i++]);
+    }
+    closedir(dir);
+  }
+  self[i] = nil;
+  return self;
+}
+
+Ramfile* createrf(Tree* t, char* path, char* filename, int perm) {
+  Ramfile* rf;
+  File* f = walkfile(t->root, path);
+  createfile(f, filename, nil, perm, nil);
+  rf = (Ramfile*)emalloc9p(sizeof *rf);
+  f->aux = rf;
+  return rf;
+}
+
 void writerf(Tree* t, char* path, char* data) {
   Ramfile* rf;
   File* f = walkfile(t->root, path);
@@ -142,6 +180,8 @@ void threadmain(int argc, char* argv[]) {
   char* mtpt = nil;
   char* usocket = nil;
   int i;
+  String** cart;
+  char cartsloc[256] = "./carts/";
 
   /* if -m PATH is supplied, mount on PATH */
   /* if -s NAME is supplied, create a socket for the namespace */
@@ -161,8 +201,13 @@ void threadmain(int argc, char* argv[]) {
 
   fs.tree = alloctree(nil, nil, DMDIR | 0777, fsdestroyfile);
   tree = fs.tree;
-  createfile(tree->root, "carts", nil, 0444, nil);
+  createfile(tree->root, "carts", nil, DMDIR | 0555, nil);
-  writerf(tree, "carts", "uStrat\nkatbug\nSoulGrind\n");
+  String** carts = listdir("carts/");
+  cart = carts;
+  while (*cart) {
+    createfile(walkfile(tree->root, "carts"), (*cart)->base, nil, 0444, nil);
+    cart++;
+  }
   fs.foreground = 1;
 
   if (argc >= 3) {