- djm@cvs.openbsd.org 2010/01/30 02:54:53

[openssh.git] / openbsd-compat / xmmap.c

diff --git a/openbsd-compat/xmmap.c b/openbsd-compat/xmmap.c
index 4239d0e964e5f9f658bfeed13db524061426389d..e0395e33f982919f2044581542f5d654cf19a787 100644 (file)
--- a/openbsd-compat/xmmap.c
+++ b/openbsd-compat/xmmap.c
@@ -38,12 +38,14 @@
 #endif
 #include <errno.h>
 #include <stdarg.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "log.h"
 
-void *xmmap(size_t size)
+void *
+xmmap(size_t size)
 {
 #ifdef HAVE_MMAP
        void *address;
@@ -69,7 +71,8 @@ void *xmmap(size_t size)
                        fatal("mkstemp(\"%s\"): %s",
                            MM_SWAP_TEMPLATE, strerror(errno));
                unlink(tmpname);
-               ftruncate(tmpfd, size);
+               if (ftruncate(tmpfd, size) != 0)
+                       fatal("%s: ftruncate: %s", __func__, strerror(errno));
                address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED,
                    tmpfd, (off_t)0);
                close(tmpfd);