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qemu-log: Plug trivial memory leak in cpu_set_log_filename()

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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Markus Armbruster 2013-01-22 11:08:03 +01:00 committed by Stefan Hajnoczi
parent 636e0f27c6
commit 40a50b0a73
1 changed files with 9 additions and 4 deletions
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13
qemu-log.c
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@ -21,10 +21,12 @@
#include "qemu/log.h"
#ifdef WIN32
static const char *logfilename = "qemu.log";
#define DEFAULT_LOGFILENAME "qemu.log"
#else
static const char *logfilename = "/tmp/qemu.log";
#define DEFAULT_LOGFILENAME "/tmp/qemu.log"
#endif
static char *logfilename;
FILE *qemu_logfile;
int qemu_loglevel;
static int log_append = 0;
@ -54,11 +56,13 @@ void qemu_log_mask(int mask, const char *fmt, ...)
/* enable or disable low levels log */
void qemu_set_log(int log_flags, bool use_own_buffers)
{
const char *fname = logfilename ?: DEFAULT_LOGFILENAME;
qemu_loglevel = log_flags;
if (qemu_loglevel && !qemu_logfile) {
qemu_logfile = fopen(logfilename, log_append ? "a" : "w");
qemu_logfile = fopen(fname, log_append ? "a" : "w");
if (!qemu_logfile) {
perror(logfilename);
perror(fname);
_exit(1);
}
/* must avoid mmap() usage of glibc by setting a buffer "by hand" */
@ -84,6 +88,7 @@ void qemu_set_log(int log_flags, bool use_own_buffers)
void cpu_set_log_filename(const char *filename)
{
g_free(logfilename);
logfilename = g_strdup(filename);
if (qemu_logfile) {
fclose(qemu_logfile);