nasmlib: Do not hang on if log file creation has been failed

In case if we can't open "malloc.log" for writing
we should not hang out but rather switch to stderr
and continue processing.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/nasmlib.c b/nasmlib.c
index 550c42d..2351101 100644
--- a/nasmlib.c
+++ b/nasmlib.c
@@ -1,6 +1,6 @@
 /* ----------------------------------------------------------------------- *
  *   
- *   Copyright 1996-2009 The NASM Authors - All Rights Reserved
+ *   Copyright 1996-2010 The NASM Authors - All Rights Reserved
  *   See the file AUTHORS included with the NASM distribution for
  *   the specific copyright holders.
  *
@@ -90,7 +90,12 @@ void nasm_init_malloc_error(void)
 {
 #ifdef LOGALLOC
     logfp = fopen("malloc.log", "w");
-    setvbuf(logfp, NULL, _IOLBF, BUFSIZ);
+    if (logfp) {
+        setvbuf(logfp, NULL, _IOLBF, BUFSIZ);
+    } else {
+        nasm_error(ERR_NONFATAL | ERR_NOFILE, "Unable to open %s", file);
+        logfp = stderr;
+    }
     fprintf(logfp, "null pointer is %p\n", NULL);
 #endif
 }