1*c9945492SAndroid Build Coastguard Worker #include <unistd.h>
2*c9945492SAndroid Build Coastguard Worker #include "syscall.h"
3*c9945492SAndroid Build Coastguard Worker
readlinkat(int fd,const char * restrict path,char * restrict buf,size_t bufsize)4*c9945492SAndroid Build Coastguard Worker ssize_t readlinkat(int fd, const char *restrict path, char *restrict buf, size_t bufsize)
5*c9945492SAndroid Build Coastguard Worker {
6*c9945492SAndroid Build Coastguard Worker char dummy[1];
7*c9945492SAndroid Build Coastguard Worker if (!bufsize) {
8*c9945492SAndroid Build Coastguard Worker buf = dummy;
9*c9945492SAndroid Build Coastguard Worker bufsize = 1;
10*c9945492SAndroid Build Coastguard Worker }
11*c9945492SAndroid Build Coastguard Worker int r = __syscall(SYS_readlinkat, fd, path, buf, bufsize);
12*c9945492SAndroid Build Coastguard Worker if (buf == dummy && r > 0) r = 0;
13*c9945492SAndroid Build Coastguard Worker return __syscall_ret(r);
14*c9945492SAndroid Build Coastguard Worker }
15