| #include <unistd.h> | |
| #include <errno.h> | |
| #include <fcntl.h> | |
| #include "syscall.h" | |
| void __procfdname(char*, unsigned); | |
| int fchdir(int fd) { | |
| int ret = __syscall(SYS_fchdir, fd); | |
| if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0) | |
| return __syscall_ret(ret); | |
| char buf[15 + 3 * sizeof(int)]; | |
| __procfdname(buf, fd); | |
| return syscall(SYS_chdir, buf); | |
| } |