fix printf warning

[oweals/busybox.git] / libbb / full_write.c

diff --git a/libbb/full_write.c b/libbb/full_write.c
index a2c07fbc9c8f1794a4a80b4b28eadd7808d695bd..30de4078a726eb8c6540aa0fcf1c8cf207b800b2 100644 (file)
--- a/libbb/full_write.c
+++ b/libbb/full_write.c
@@ -2,7 +2,7 @@
 /*
  * Utility routines.
  *
- * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -28,21 +28,21 @@
  * This does multiple writes as necessary.
  * Returns the amount written, or -1 on an error.
  */
-int full_write(int fd, const char *buf, int len)
+ssize_t bb_full_write(int fd, const void *buf, size_t len)
 {
-       int cc;
-       int total;
+       ssize_t cc;
+       ssize_t total;
 
        total = 0;
 
        while (len > 0) {
-               cc = write(fd, buf, len);
+               cc = safe_write(fd, buf, len);
 
                if (cc < 0)
-                       return -1;
+                       return cc;              /* write() returns -1 on failure. */
 
-               buf += cc;
                total += cc;
+               buf = ((const char *)buf) + cc;
                len -= cc;
        }