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>
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17
qga/main.c
17
qga/main.c
@ -261,6 +261,19 @@ void ga_set_response_delimited(GAState *s)
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s->delimit_response = true;
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}
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static FILE *ga_open_logfile(const char *logfile)
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{
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FILE *f;
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f = fopen(logfile, "a");
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if (!f) {
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return NULL;
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}
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qemu_set_cloexec(fileno(f));
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return f;
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}
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#ifndef _WIN32
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static bool ga_open_pidfile(const char *pidfile)
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{
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@ -402,7 +415,7 @@ void ga_unset_frozen(GAState *s)
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* in a frozen state at start up, do it now
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*/
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if (s->deferred_options.log_filepath) {
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s->log_file = fopen(s->deferred_options.log_filepath, "a");
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s->log_file = ga_open_logfile(s->deferred_options.log_filepath);
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if (!s->log_file) {
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s->log_file = stderr;
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}
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@ -884,7 +897,7 @@ int main(int argc, char **argv)
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become_daemon(pid_filepath);
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}
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if (log_filepath) {
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FILE *log_file = fopen(log_filepath, "a");
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FILE *log_file = ga_open_logfile(log_filepath);
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if (!log_file) {
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g_critical("unable to open specified log file: %s",
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strerror(errno));
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