[Libvir] avoid reading uninitialized memory in test program

valgrind complained about the printf in conftest.c. Here's the fix: * src/conf.c (__virConfWriteMem): Fix typos in comment. * tests/conftest.c (main): Use fwrite, not printf, since the result buffer is not NUL-terminated. =================================================================== RCS file: /data/cvs/libvirt/src/conf.c,v retrieving revision 1.11 diff -u -p -r1.11 conf.c --- src/conf.c 4 Jul 2007 09:16:23 -0000 1.11 +++ src/conf.c 17 Oct 2007 11:31:54 -0000 @@ -1,7 +1,7 @@ /** * conf.c: parser for a subset of the Python encoded Xen configuration files * - * Copyright (C) 2006 Red Hat, Inc. + * Copyright (C) 2006, 2007 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -916,7 +916,7 @@ error: /** * __virConfWriteMem: * @memory: pointer to the memory to store the config file - * @len: pointer to the lenght in byte of the store, on output the size + * @len: pointer to the length in bytes of the store, on output the size * @conf: the conf * * Writes a configuration file back to a memory area. @len is an IN/OUT =================================================================== RCS file: /data/cvs/libvirt/tests/conftest.c,v retrieving revision 1.1 diff -u -p -r1.1 conftest.c --- tests/conftest.c 29 Aug 2006 22:27:07 -0000 1.1 +++ tests/conftest.c 17 Oct 2007 11:31:54 -0000 @@ -24,7 +24,10 @@ int main(int argc, char **argv) { fprintf(stderr, "Failed to serialize %s back\n", argv[1]); exit(3); } - printf("%s", buffer); virConfFree(conf); + if (fwrite(buffer, len, 1, stdout) != len) { + fprintf(stderr, "Write failed\n"); + exit(1); + } exit(0); }