X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=sha1.cc;h=321807552535057a26c022e32d408b16b8ff4cdc;hb=a4cf5f4d8df46fa00992a210d587cd824cedcb08;hp=c7b71126daf03bc17d123e834f320938aea6ffd2;hpb=bf8eba693e2667688b83b2a4aa220ec8adcb7907;p=cumulus.git

diff --git a/sha1.cc b/sha1.cc
index c7b7112..3218075 100644
--- a/sha1.cc
+++ b/sha1.cc
@@ -30,6 +30,7 @@
 #include "sha1.h"
 
 #include <stddef.h>
+#include <stdio.h>
 #include <string.h>
 #include <arpa/inet.h>
 
@@ -348,6 +349,28 @@ void SHA1Checksum::process(const void *data, size_t len)
     sha1_process_bytes(data, len, &ctx);
 }
 
+bool SHA1Checksum::process_file(const char *filename)
+{
+    FILE *f = fopen(filename, "rb");
+    if (f == NULL)
+        return false;
+
+    while (!feof(f)) {
+        char buf[4096];
+        size_t bytes = fread(buf, 1, sizeof(buf), f);
+
+        if (ferror(f)) {
+            fclose(f);
+            return false;
+        }
+
+        process(buf, bytes);
+    }
+
+    fclose(f);
+    return true;
+}
+
 const uint8_t *SHA1Checksum::checksum()
 {
     sha1_finish_ctx(&ctx, resbuf);