Create scanner.c/h files

1 files changed, 30 insertions, 0 deletions

diff --git a/src/scanner.c b/src/scanner.c
new file mode 100644
index 0000000..7c65df4
--- /dev/null
+++ b/src/scanner.c
@@ -0,0 +1,30 @@
+#include "shared.h"
+#define _GNU_SOURCE
+
+#include "ll.h"
+#include "scanner.h"
+
+#include <stdlib.h>
+#include <dirent.h>
+#include <string.h>
+#include <errno.h>
+#include <error.h>
+
+dlinkedlist * scandirlist(const char * const dir, int (*selector)(const struct dirent *), int (*cmp)(const struct dirent **, const struct dirent **)) {
+    struct dirent **namelist = NULL;
+    dlinkedlist *list = NULL;
+    int numentries = -1;
+
+    if((numentries = scandir(dir, &namelist, selector, cmp)) < 0)
+        RETURNWERR(errno, NULL);
+
+    list = dlinkedlist_init();
+    for(int i = 0; i < numentries; i++)
+        if(dlinkedlist_append(list, (void *)(namelist[i]), free) < 0) {
+            dlinkedlist_free(list);
+            RETURNWERR(errno, NULL);
+        }
+    free(namelist);
+
+    return list;
+}