| 1 | #define _GNU_SOURCE |
| 2 | #include <unistd.h> |
| 3 | #include <errno.h> |
| 4 | #include <fcntl.h> |
| 5 | #include "syscall.h" |
| 6 | |
| 7 | int fexecve(int fd, char *const argv[], char *const envp[]) |
| 8 | { |
| 9 | int r = __syscall(SYS_execveat, fd, "", argv, envp, AT_EMPTY_PATH); |
| 10 | if (r != -ENOSYS) return __syscall_ret(r); |
| 11 | char buf[15 + 3*sizeof(int)]; |
| 12 | __procfdname(buf, fd); |
| 13 | execve(buf, argv, envp); |
| 14 | if (errno == ENOENT) errno = EBADF; |
| 15 | return -1; |
| 16 | } |