From 44eb280f853f77a88a801fcbf725c93623e990af Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@operamail.com>
Date: Sun, 20 Sep 2015 13:33:55 +0200
Subject: libsha2_sum_fd continues if interrupted
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
---
 src/libsha2/files.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/libsha2/files.c b/src/libsha2/files.c
index 2f4bb72..903c592 100644
--- a/src/libsha2/files.c
+++ b/src/libsha2/files.c
@@ -22,6 +22,7 @@
 #include <unistd.h>
 #include <sys/stat.h>
 #include <alloca.h>
+#include <errno.h>
 
 
 
@@ -54,8 +55,14 @@ int libsha2_sum_fd(int fd, libsha2_algorithm_t algorithm, char* restrict hashsum
   for (;;)
     {
       got = read(fd, chunk, blksize);
-      if (got < 0)   return -1;
-      if (got == 0)  break;
+      if (got < 0)
+	{
+	  if (errno == EINTR)
+	    continue;
+	  return -1;
+	}
+      if (got == 0)
+	break;
       libsha2_update(&state, chunk, (size_t)got);
     }
   
-- 
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