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files: rework a function for closing all descriptors (v2)

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It reads /proc/PID/fd and close all descriptors except service fds.

v2: s/is_one_of_service_fds/is_any_service_fd

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2012-09-29 11:01:53 +04:00
committed by Pavel Emelyanov
parent edf8ec3fe3
commit d33d2290bd
3 changed files with 39 additions and 12 deletions
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13
util.c
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@@ -281,10 +281,21 @@ int init_service_fd(void)
return 0;
}
static int __get_service_fd(enum sfd_type type)
{
return service_fd_rlim_cur - type;
}
int get_service_fd(enum sfd_type type)
{
BUG_ON((int)type <= SERVICE_FD_MIN || (int)type >= SERVICE_FD_MAX);
return service_fd_rlim_cur - type;
return __get_service_fd(type);
}
bool is_any_service_fd(int fd)
{
return fd > __get_service_fd(SERVICE_FD_MAX) &&
fd < __get_service_fd(SERVICE_FD_MIN);
}
bool is_service_fd(int fd, enum sfd_type type)