Changed write file to cope with partial writes by looping

until complete or errno is set.
					(John Van Essen)

diff --git a/fileio.c b/fileio.c
index 92631bc..e8eaa10 100644 (file)
--- a/fileio.c
+++ b/fileio.c
@@ -69,19 +69,22 @@ static int write_sparse(int f,char *buf,size_t len)
        return len;
 }
 
-
-
+/*
+ * write_file does not allow incomplete writes.  It loops internally
+ * until len bytes are written or errno is set.
+ */
 int write_file(int f,char *buf,size_t len)
 {
        int ret = 0;
 
-       if (!sparse_files) {
-               return write(f,buf,len);
-       }
-
        while (len>0) {
-               int len1 = MIN(len, SPARSE_WRITE_SIZE);
-               int r1 = write_sparse(f, buf, len1);
+               int r1;
+               if (sparse_files) {
+                       int len1 = MIN(len, SPARSE_WRITE_SIZE);
+                       r1 = write_sparse(f, buf, len1);
+               } else {
+                       r1 = write(f, buf, len);
+               }
                if (r1 <= 0) {
                        if (ret > 0) return ret;
                        return r1;