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#include <unistd.h>
#include <fcntl.h>
#include "syscall.h"
ssize_t readlink(const char *restrict path, char *restrict buf, size_t bufsize)
{
char dummy[1];
if (!bufsize) {
buf = dummy;
bufsize = 1;
}
#ifdef SYS_readlink
int r = __syscall(SYS_readlink, path, buf, bufsize);
#else
int r = __syscall(SYS_readlinkat, AT_FDCWD, path, buf, bufsize);
#endif
if (buf == dummy && r > 0) r = 0;
return __syscall_ret(r);
}
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