From 4e09bca9e34c226b6d7e34b4fa11248405fd988e Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Sun, 22 Oct 2023 19:50:38 +0200
Subject: Move everything into a new repo.

---
 userland/libc/dirent/scandir.c | 43 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 userland/libc/dirent/scandir.c

(limited to 'userland/libc/dirent/scandir.c')

diff --git a/userland/libc/dirent/scandir.c b/userland/libc/dirent/scandir.c
new file mode 100644
index 0000000..1520140
--- /dev/null
+++ b/userland/libc/dirent/scandir.c
@@ -0,0 +1,43 @@
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+
+int nop_sel(const struct dirent *unused) {
+  (void)unused;
+  return 1;
+}
+
+int nop_compar(const struct dirent **d1, const struct dirent **d2) {
+  *d2 = *d1;
+  return 0;
+}
+
+int scandir(const char *dir, struct dirent ***namelist,
+            int (*sel)(const struct dirent *),
+            int (*compar)(const struct dirent **, const struct dirent **)) {
+  if (!sel)
+    sel = nop_sel;
+
+  if (!compar)
+    compar = nop_compar;
+
+  DIR *d = opendir(dir);
+  struct dirent **list = NULL;
+  struct dirent *e;
+  int rc = 0;
+  for (; (e = readdir(d));) {
+    if (!sel(e))
+      continue;
+    struct dirent *p = malloc(sizeof(struct dirent));
+    memcpy(p, e, sizeof(struct dirent));
+    list = realloc(list, (rc + 1) * sizeof(struct dirent *));
+    list[rc] = p;
+    rc++;
+  }
+  //  struct dirent **new_list;
+  //  compar((const struct dirent **)list, (const struct dirent **)new_list);
+  //  *namelist = new_list;
+  *namelist = list;
+  // closedir(d);
+  return rc;
+}
-- 
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