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/* COVERAGE: getrandom */
/*
* Glibc doesn't support getrandom yet, so we have to use syscall(2)
*/
#include <sys/syscall.h>
#include <unistd.h>
#ifndef GRND_NONBLOCK
#define GRND_NONBLOCK 0x0001
#endif
#ifndef GRND_RANDOM
#define GRND_RANDOM 0x0002
#endif
#ifdef __NR_getrandom
static inline int __getrandom(void *buf, size_t buflen, unsigned int flags)
{
return syscall(__NR_getrandom, buf, buflen, flags);
}
#endif
int main()
{
// e.g. kernel-headers-3.13.9-200.fc20.x86_64 do not have __NR_getrandom
#ifdef __NR_getrandom
char i[5] = {0};
char k[5] = {0};
__getrandom(i, sizeof(i), GRND_RANDOM);
//staptest// [[[[getrandom ("", 5, GRND_RANDOM) = 5!!!!ni_syscall () = NNNN]]]]
__getrandom((void *)-1, 5, GRND_RANDOM);
#ifdef __s390__
//staptest// [[[[getrandom (0x[7]?[f]+, 5, GRND_RANDOM)!!!!ni_syscall ()]]]] = -NNNN
#else
//staptest// [[[[getrandom (0x[f]+, 5, GRND_RANDOM)!!!!ni_syscall ()]]]] = -NNNN
#endif
/* Here we want to make sure to pass NULL as the buffer, as we don't
* really want to write that many bytes into a buffer that wouldn't
* be that big. */
__getrandom(NULL, (size_t)-1, GRND_RANDOM);
#if __WORDSIZE == 64
//staptest// [[[[getrandom (0x0, 18446744073709551615, GRND_RANDOM)!!!!ni_syscall ()]]]] = NNNN
#else
//staptest// [[[[getrandom (0x0, 4294967295, GRND_RANDOM)!!!!ni_syscall ()]]]] = NNNN
#endif
__getrandom(k, sizeof(k), -1);
//staptest// [[[[getrandom ("", 5, GRND_[^ ]+|XXXX)!!!!ni_syscall ()]]]] = -NNNN
#endif
return 0;
}
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