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/*
* sys_cap.h:
*
* See the main source file 'xineliboutput.c' for copyright information and
* how to reach the author.
*
* $Id: sys_cap.h,v 1.3 2011-04-09 12:50:16 phintuka Exp $
*
*/
#ifndef _XINELIBOUTPUT_SYS_CAP_H_
#define _XINELIBOUTPUT_SYS_CAP_H_
#include "../features.h"
#include <unistd.h>
#include <sys/types.h>
#ifdef HAVE_LIBCAP
# include <sys/capability.h>
#endif
#ifdef HAVE_LIBCAP
static inline cap_flag_value_t get_cap_flag(cap_value_t cap)
{
cap_flag_value_t val = CAP_CLEAR;
cap_t caps = cap_get_proc();
if (!caps) {
LOGDBG("cap_get_proc() failed");
return val;
}
if (cap_get_flag(caps, cap, CAP_EFFECTIVE, &val)) {
LOGDBG("cap_get_flag(%d) failed", cap);
}
cap_free(caps);
return val;
}
#endif
static inline int have_cap_sys_nice(void)
{
#ifdef HAVE_LIBCAP
if (get_cap_flag(CAP_SYS_NICE) == CAP_SET) {
LOGDBG("Have CAP_SYS_NICE capability");
return 1;
}
LOGDBG("No CAP_SYS_NICE capability");
#endif
return geteuid() == 0;
}
#endif // _XINELIBOUTPUT_SYS_CAP_H_
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