vncv: fix snarf buffer realloc memory corruption

fix never updating p when snarf is reallocated,
resulting in memory corruption.

diff --git a/sys/src/cmd/vnc/wsys.c b/sys/src/cmd/vnc/wsys.c
index 81ffb39d9385ab21e156cc13ff210e31bc1869cc..d4b13b655d8b936fc28cd791c8e8e1d08b92255e 100644 (file)
--- a/sys/src/cmd/vnc/wsys.c
+++ b/sys/src/cmd/vnc/wsys.c
@@ -281,6 +281,7 @@ getsnarf(int *sz)
                        *sz += c;
                        if (n == 0){
                                snarf = realloc(snarf, *sz + 8192);
+                               p = snarf + *sz;
                                n = 8192;
                        }
                }