libmach: fix incorrect use of memset
Fixes #2213.
R=rsc
CC=golang-dev
https://golang.org/cl/4975047
diff --git a/src/libmach/executable.c b/src/libmach/executable.c
index fa0fa1b..9d45323 100644
--- a/src/libmach/executable.c
+++ b/src/libmach/executable.c
@@ -811,7 +811,7 @@
buf = malloc(sh[ep->shstrndx].size);
if (buf == 0)
goto done;
- memset(buf, 0, sizeof buf);
+ memset(buf, 0, sh[ep->shstrndx].size);
seek(fd, sh[ep->shstrndx].offset, 0);
i = read(fd, buf, sh[ep->shstrndx].size);
USED(i); // shut up ubuntu gcc
@@ -989,7 +989,7 @@
buf = malloc(sh[ep->shstrndx].size);
if (buf == 0)
goto done;
- memset(buf, 0, sizeof buf);
+ memset(buf, 0, sh[ep->shstrndx].size);
seek(fd, sh[ep->shstrndx].offset, 0);
i = read(fd, buf, sh[ep->shstrndx].size);
USED(i); // shut up ubuntu gcc
