Change strlcpy not to use strncpy. (Adds 24 bytes, but doesn't memset the

unused portion of the buffer to 0, which can touch and allocate physical
pages for a large virtual mapping.)

diff --git a/lib/lib.c b/lib/lib.c
index ad84dff..eed7296 100644 (file)
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -18,8 +18,12 @@
 // Like strncpy but always null terminated.
 void strlcpy(char *dest, char *src, size_t size)
 {
-       strncpy(dest,src,size);
-       dest[size-1] = 0;
+       int len = strlen(src);
+       if (size--) {
+               if (len > size) len=size;
+               memcpy(dest,src, len);
+               dest[len] = 0;
+       }
 }
 #endif