From 6ee792e561969bc25445a582a448cd7f0e00067a Mon Sep 17 00:00:00 2001
From: alpine9000 <alex.g.brown@gmail.com>
Date: Tue, 1 Mar 2016 15:30:01 +1100
Subject: [PATCH] Converted makeadf to be consistent with imagecon

---
 tools/makeadf           | Bin 8784 -> 0 bytes
 tools/makeadf/Makefile  |  16 ++++++++++
 tools/makeadf/makeadf.c |  64 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+)
 delete mode 100755 tools/makeadf
 create mode 100644 tools/makeadf/Makefile
 create mode 100644 tools/makeadf/makeadf.c

diff --git a/tools/makeadf b/tools/makeadf
deleted file mode 100755
index f7c7e5843c788bc97836673e1bea039463184e96..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/tools/makeadf/Makefile b/tools/makeadf/Makefile
new file mode 100644
index 0000000..167c1f7
--- /dev/null
+++ b/tools/makeadf/Makefile
@@ -0,0 +1,16 @@
+MAKEADF=./bin/makeadf
+SRCS=makeadf.c
+HOST_WARNINGS=-pedantic-errors -Wfatal-errors -Wall -Werror -Wextra -Wno-unused-parameter -Wshadow
+HOST_CFLAGS=$(HOST_WARNINGS)
+
+$(MAKEADF): out bin $(SRCS)
+	gcc $(HOST_CFLAGS) $(SRCS) -o $(MAKEADF)
+
+out:
+	mkdir out
+
+bin:
+	mkdir bin
+
+clean:
+	rm -r out bin
\ No newline at end of file
diff --git a/tools/makeadf/makeadf.c b/tools/makeadf/makeadf.c
new file mode 100644
index 0000000..ca995a5
--- /dev/null
+++ b/tools/makeadf/makeadf.c
@@ -0,0 +1,64 @@
+/* 
+ * http://eab.abime.net/showpost.php?p=895070&postcount=6 
+ * Makes a disk image of 901120 (0xdc000) bytes.
+ * Calculates boot block checksum.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#define DISKSIZE (0xdc000)
+
+uint8_t image[DISKSIZE];
+
+
+static void boot_chksum(uint8_t *p)
+{
+  uint32_t oldchk,chk=0;
+  int i;
+
+  memset(p+4,0,4);
+  for (i=0; i<1024; i+=4) {
+    oldchk = chk;
+    chk += ((uint32_t)p[i+0] << 24) | ((uint32_t)p[i+1] << 16) |
+      ((uint32_t)p[i+2] << 8) | p[i+3];
+    if (chk < oldchk)
+      ++chk;  /* carry */
+  }
+
+  chk = ~chk;
+  p[4] = (uint8_t)((chk >> 24) & 0xff);
+  p[5] = (uint8_t)((chk >> 16) & 0xff);
+  p[6] = (uint8_t)((chk >> 8) & 0xff);
+  p[7] = (uint8_t)(chk & 0xff);
+}
+
+
+int main(int argc,char *argv[])
+{
+  FILE *f;
+  int rc = 1;
+  size_t len;
+
+  if (argc == 2) {
+    if ((f = fopen(argv[1],"rb"))) {
+      len = fread(image,1,DISKSIZE,f);
+      if (len > 0) {
+        if (len < DISKSIZE)
+          memset(image+len,0,DISKSIZE-len);
+        boot_chksum(image);
+        fwrite(image,1,DISKSIZE,stdout);
+        rc = 0;
+      }
+      else
+        fprintf(stderr,"Image read error!\n");
+    }
+    else
+      fprintf(stderr,"Cannot open '%s'!\n",argv[0]);  
+  }
+  else
+    fprintf(stderr,"Usage: %s <image data>\n",argv[0]);
+
+  return rc;
+}