From eb626bd8ee3fddae050dbf9babfbea19961a36f2 Mon Sep 17 00:00:00 2001
From: Jeffrey Armstrong <jeffrey.armstrong@approximatrix.com>
Date: Thu, 2 Jan 2014 09:07:27 -0500
Subject: Initial code commit, including db init and file hashing

---
 rfile.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 rfile.c

(limited to 'rfile.c')

diff --git a/rfile.c b/rfile.c
new file mode 100644
index 0000000..497d383
--- /dev/null
+++ b/rfile.c
@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "prism.h"
+#include "md5.h"
+#include "rfile.h"
+
+static const char hex_str[]= "0123456789abcdef";
+
+int get_file_hash(const char *filename, char *hash)
+{
+FILE *fp;
+MD5_CTX hb;
+char buf[16];
+int i;
+
+    if(filename == NULL || hash == NULL)
+        return PRET_ERROR;
+        
+    fp = fopen(filename, "rb");
+    if(fp == NULL)
+        return PRET_READERROR;
+    
+    MD5_Init(&hb);
+    while(fgets(buf, 15, fp)) {
+        MD5_Update(&hb, buf, strlen(buf));
+    }
+    fclose(fp);
+    
+    MD5_Final(buf, &hb);
+    
+    for(i=0; i<16; i++) {
+        hash[2*i] = hex_str[buf[i] >> 4];
+        hash[2*i+1] = hex_str[buf[i] & 0x0F];
+    }
+    
+    return PRET_OK;
+}    
-- 
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