1 files changed, 4 insertions, 3 deletions

diff --git a/lib/util.cc b/lib/util.cc
index 94f6f53..94e09ed 100644
--- a/lib/util.cc
+++ b/lib/util.cc
@@ -28,9 +28,10 @@ namespace opkele {
                 if(!bmem)
                     throw exception_openssl(OPKELE_CP_ "failed to BIO_new() memory buffer");
                 BIO_push(b64,bmem);
-                if(BIO_write(b64,data,length)!=length)
+                if(((size_t)BIO_write(b64,data,length))!=length)
                     throw exception_openssl(OPKELE_CP_ "failed to BIO_write()");
-                BIO_flush(b64);
+                if(BIO_flush(b64)!=1)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_flush()");
                 char *rvd;
                 long rvl = BIO_get_mem_data(bmem,&rvd);
                 string rv(rvd,rvl);
@@ -144,7 +145,7 @@ namespace opkele {
         string long_to_string(long l) {
             char rv[32];
             int r=snprintf(rv,sizeof(rv),"%ld",l);
-            if(r<0 || r>=sizeof(rv))
+            if(r<0 || r>=(int)sizeof(rv))
                 throw failed_conversion(OPKELE_CP_ "failed to snprintf()");
             return rv;
         }