X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fcarefulio.c;h=b8d865d43a551bc13cf7f4fae068e8409bee60af;hb=e371dcc1cd2857036374dd9597705faed0427006;hp=7bfeee9b80e8c47aa4d49c983e8f15517df6b9f6;hpb=c0a2cdadcbdb1d5331efb149b9ef473e2bbdcbec;p=libucw.git

diff --git a/lib/carefulio.c b/lib/carefulio.c
index 7bfeee9b..b8d865d4 100644
--- a/lib/carefulio.c
+++ b/lib/carefulio.c
@@ -1,5 +1,5 @@
 /*
- *	Sherlock Library -- Careful Read/Write
+ *	UCW Library -- Careful Read/Write
  *
  *	(c) 2004 Martin Mares <mj@ucw.cz>
  *
@@ -34,13 +34,13 @@ careful_read(int fd, void *buf, int len)
 }
 
 int
-careful_write(int fd, void *buf, int len)
+careful_write(int fd, const void *buf, int len)
 {
-  byte *pos = buf;
+  const byte *pos = buf;
   while (len)
     {
       int l = write(fd, pos, len);
-      if (l <= 0)
+      if (l < 0)
 	return -1;
       if (!l)
 	return 0;