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qemu-ga: make reopen_fd_to_null() public 

The next commit wants to use it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Luiz Capitulino 2012-05-10 16:50:41 -03:00 committed by Michael Roth
parent d9fcd2a1c8
commit 04b4e75f33
3 changed files with 21 additions and 19 deletions
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17
qemu-ga.c
View File

@ -140,6 +140,23 @@ static gboolean register_signal_handlers(void)
return true;
}
/* TODO: use this in place of all post-fork() fclose(std*) callers */
void reopen_fd_to_null(int fd)
{
int nullfd;
nullfd = open("/dev/null", O_RDWR);
if (nullfd < 0) {
return;
}
dup2(nullfd, fd);
if (nullfd != fd) {
close(nullfd);
}
}
#endif
static void usage(const char *cmd)

19
qga/commands-posix.c
View File

@ -34,25 +34,6 @@
#endif
#endif
#if defined(__linux__)
/* TODO: use this in place of all post-fork() fclose(std*) callers */
static void reopen_fd_to_null(int fd)
{
int nullfd;
nullfd = open("/dev/null", O_RDWR);
if (nullfd < 0) {
return;
}
dup2(nullfd, fd);
if (nullfd != fd) {
close(nullfd);
}
}
#endif /* defined(__linux__) */
void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err)
{
int ret;

4
qga/guest-agent-core.h
View File

@ -35,3 +35,7 @@ void ga_set_response_delimited(GAState *s);
bool ga_is_frozen(GAState *s);
void ga_set_frozen(GAState *s);
void ga_unset_frozen(GAState *s);
#ifndef _WIN32
void reopen_fd_to_null(int fd);
#endif