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qemu-ga: add ga_open_logfile() 

This function sets O_CLOEXEC on the log file fd so that it isn't
leaked to executed processes.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Amos Kong <akong@redhat.com>
Tested-by: Amos Kong <akong@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Luiz Capitulino 2013-01-08 19:26:26 -02:00 committed by Michael Roth
parent 6ffacc5d3d
commit 9e92f6d462
1 changed files with 15 additions and 2 deletions
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17
qga/main.c
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@ -261,6 +261,19 @@ void ga_set_response_delimited(GAState *s)
s->delimit_response = true; s->delimit_response = true;
} }
static FILE *ga_open_logfile(const char *logfile)
{
FILE *f;
f = fopen(logfile, "a");
if (!f) {
return NULL;
}
qemu_set_cloexec(fileno(f));
return f;
}
#ifndef _WIN32 #ifndef _WIN32
static bool ga_open_pidfile(const char *pidfile) static bool ga_open_pidfile(const char *pidfile)
{ {
@ -402,7 +415,7 @@ void ga_unset_frozen(GAState *s)
* in a frozen state at start up, do it now * in a frozen state at start up, do it now
*/ */
if (s->deferred_options.log_filepath) { if (s->deferred_options.log_filepath) {
s->log_file = fopen(s->deferred_options.log_filepath, "a"); s->log_file = ga_open_logfile(s->deferred_options.log_filepath);
if (!s->log_file) { if (!s->log_file) {
s->log_file = stderr; s->log_file = stderr;
} }
@ -884,7 +897,7 @@ int main(int argc, char **argv)
become_daemon(pid_filepath); become_daemon(pid_filepath);
} }
if (log_filepath) { if (log_filepath) {
FILE *log_file = fopen(log_filepath, "a"); FILE *log_file = ga_open_logfile(log_filepath);
if (!log_file) { if (!log_file) {
g_critical("unable to open specified log file: %s", g_critical("unable to open specified log file: %s",
strerror(errno)); strerror(errno));