On Fri, Jul 03, 2015 at 05:13:37PM +0800, Yuan Sun wrote:
> Hi Jan,
> The following link is unaccessible because HuaWei's network
> security strategy.
> Could you please attach the test.c file for me?
> http://fpaste.org/239445/35909330/
Was afraid my web email client would mangle it. Attached.
Regards,
Jan
#include <linux/types.h>
#include <sys/capability.h>
#include <stdio.h>
#define NUMBER_OF_CAP_SETS 3
#if defined(_LINUX_CAPABILITY_VERSION_3)
# if (_LINUX_CAPABILITY_VERSION_3 != 0x20080522)
# error Kernel <linux/capability.h> v3 does not match library
# error file "libcap.h" --> fix and recompile libcap
# else
# define _LIBCAP_CAPABILITY_VERSION _LINUX_CAPABILITY_VERSION_3
# define _LIBCAP_CAPABILITY_U32S _LINUX_CAPABILITY_U32S_3
# endif
#endif
struct _cap_struct {
struct __user_cap_header_struct head;
union {
struct __user_cap_data_struct set;
__u32 flat[NUMBER_OF_CAP_SETS];
} u[_LIBCAP_CAPABILITY_U32S];
};
int main(void)
{
cap_t caps, expectedcaps;
int i;
caps = cap_get_proc();
expectedcaps = cap_from_text("=ep");
for (i = 0; i < _LIBCAP_CAPABILITY_U32S; i++)
printf("%08x ", caps->u[i].flat[CAP_EFFECTIVE]);
printf("\n");
for (i = 0; i < _LIBCAP_CAPABILITY_U32S; i++)
printf("%08x ", expectedcaps->u[i].flat[CAP_EFFECTIVE]);
printf("\n");
printf("cap_compare: %d\n", cap_compare(caps, expectedcaps));
return 0;
}
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