`nx_ssh_cmd.nx` source

1// nx_ssh_cmd.nx -- generic one-shot remote command over the sovereign SSH client. Reads the command text
2// from /tmp/nxcmd and the password from /tmp/nxpw (both staged + deleted by the caller). Lets us inspect /
3// drive the NAS without rebuilding per query. Read-only or write depending on the command supplied.
4// license_tier: ORIGINAL
5import "nx_syscalls.nx"
6import "nx_ssh_lib.nx"
7
8func slen(s: *u8) -> i64 { var n: i64 = 0; while s[n] != 0 as u8 { n = n + 1 } return n }
9
10func main() -> i64 {
11    let pwbox: *i64 = sys_mmap(16) as *i64
12    let pw: *u8 = sys_read_file("/tmp/nxpw" as *u8, pwbox)
13    if (pw as i64) == 0 { ssh_puts("no /tmp/nxpw\n" as *u8); return 1 }
14    var pwlen: i64 = pwbox[0]
15    while pwlen > 0 { if pw[pwlen-1] == 10 as u8 { pwlen = pwlen - 1 } else { if pw[pwlen-1] == 13 as u8 { pwlen = pwlen - 1 } else { break } } }
16
17    let cmdbox: *i64 = sys_mmap(16) as *i64
18    let cmd: *u8 = sys_read_file("/tmp/nxcmd" as *u8, cmdbox)
19    if (cmd as i64) == 0 { ssh_puts("no /tmp/nxcmd\n" as *u8); return 1 }
20    var cmdlen: i64 = cmdbox[0]
21    while cmdlen > 0 { if cmd[cmdlen-1] == 10 as u8 { cmdlen = cmdlen - 1 } else { break } }
22
23    let st: *SshState = sys_mmap(SSH_STATE_BYTES) as *SshState
24    if ssh_open_session(st, (192 << 24) | (168 << 16) | (8 << 8) | 227) != 0 { ssh_puts("session fail\n" as *u8); return 2 }
25    if ssh_userauth_password(st, "elderwesto" as *u8, 10, pw, pwlen) != 1 { ssh_puts("auth fail\n" as *u8); sys_close(st.fd); return 3 }
26    ssh_exec(st, cmd, cmdlen)
27    sys_close(st.fd)
28    return 0
29}
nx_ssh_cmd.nx source

`nx_ssh_cmd.nx` source
