[klibc] fix broken strlcpy() strlcat()

[Kay Sievers]

Just another udev segfault. strlcpy() writes behind the specified maximum
size. strlcat() causes the same probelem and truncates the destination string
to the maximum size which isn't the job for a concatenation function.

Thanks,
Kay


diff -Nru a/klibc/klibc/strlcat.c b/klibc/klibc/strlcat.c
--- a/klibc/klibc/strlcat.c	2005-03-27 04:40:42 +02:00
+++ b/klibc/klibc/strlcat.c	2005-03-27 04:40:42 +02:00
@@ -16,9 +16,11 @@
     q++;
     bytes++;
   }
+  if (bytes == size)
+    return (bytes + strlen(src));
 
   while ( (ch = *p++) ) {
-    if ( bytes < size )
+    if ( bytes+1 < size )
       *q++ = ch;
 
     bytes++;
diff -Nru a/klibc/klibc/strlcpy.c b/klibc/klibc/strlcpy.c
--- a/klibc/klibc/strlcpy.c	2005-03-27 04:40:42 +02:00
+++ b/klibc/klibc/strlcpy.c	2005-03-27 04:40:42 +02:00
@@ -13,7 +13,7 @@
   char ch;
 
   while ( (ch = *p++) ) {
-    if ( bytes < size )
+    if ( bytes+1 < size )
       *q++ = ch;
 
     bytes++;