From e97feb1e3d99fc3b483fb1e71d9ecd2368f2bfb6 Mon Sep 17 00:00:00 2001
From: Nathan Fisher <nfisher.sr@gmail.com>
Date: Mon, 24 Jul 2023 18:56:04 -0400
Subject: [PATCH] Finish `haggis_load_node` function; Add *node related
 function prototypes to haggis.h;

---
 include/haggis.h |  5 +++++
 src/haggis.c     | 34 +++++++++++++++++++++++++++++-----
 2 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/include/haggis.h b/include/haggis.h
index 87cf72b..2e25153 100644
--- a/include/haggis.h
+++ b/include/haggis.h
@@ -118,4 +118,9 @@ struct haggis_node {
     struct haggis_filetype *filetype;
 };
 
+struct haggis_node* haggis_create_node(char *file);
+int haggis_extract_node(FILE *stram, struct haggis_node *node);
+int haggis_load_node(FILE *stream, struct haggis_node *node);
+int haggis_store_node(FILE *stream, struct haggis_node *node);
+
 #endif // !HAGGIS_H
diff --git a/src/haggis.c b/src/haggis.c
index 11f9877..31e6974 100644
--- a/src/haggis.c
+++ b/src/haggis.c
@@ -30,6 +30,7 @@
  *      other than his own.
  */
 
+#include <stdint.h>
 #if defined(__FreeBSD__) || defined(__DragonFly__)
 #include <sha.h>
 #include <sha256.h>
@@ -357,7 +358,7 @@ int haggis_load_filetype(
         file->tag = 2;
     case directory:
         file->tag = 3;
-	break;
+        break;
     case character:
         file->tag = 4;
         return haggis_load_device(stream, file->f_type);
@@ -366,7 +367,7 @@ int haggis_load_filetype(
         return haggis_load_device(stream, file->f_type);
     case fifo:
         file->tag = 6;
-	break;
+        break;
     case eof:
         file->tag = 7;
         break;
@@ -374,7 +375,19 @@ int haggis_load_filetype(
     return 0;
 }
 
-int haggis_store_node(FILE *stream, struct haggis_node *node) {
+enum haggis_typeflag haggis_filetype_from_mode(union u16 mode) {
+    u8 mask = 07 << 5;
+    int filetype = (int)((mode.bytes[0] & mask) >> 5);
+    return filetype;
+}
+
+struct haggis_node* haggis_create_node(char *file) {
+    struct haggis_node *node = malloc(sizeof(struct haggis_node));
+    // todo
+    return node;
+}
+
+int haggis_extract_node(FILE *stram, struct haggis_node *node) {
     // todo
     return 0;
 }
@@ -382,8 +395,9 @@ int haggis_store_node(FILE *stream, struct haggis_node *node) {
 int haggis_load_node(FILE *stream, struct haggis_node *node) {
     int res;
     union u16 mode;
-    enum haggis_typeflag flag;
+    enum haggis_typeflag tag;
 
+    mode.val = 0;
     res = haggis_load_filename(stream, node->name);
     if (res)
         return res;
@@ -399,6 +413,16 @@ int haggis_load_node(FILE *stream, struct haggis_node *node) {
     res = load_u16(stream, mode);
     if (res != 2)
         return 2;
-    //todo
+    tag = haggis_filetype_from_mode(mode);
+    node->mode.bytes[0] = mode.bytes[0] & 037;
+    node->mode.bytes[1] = mode.bytes[1];
+    res = haggis_load_filetype(stream, tag, node->filetype);
+    if (res)
+        return res;
+    return 0;
+}
+
+int haggis_store_node(FILE *stream, struct haggis_node *node) {
+    // todo
     return 0;
 }