Rsync parity: remote shell and connection options #130

New Issue

2026-07-21T16:24:05+02:00

TapTap commented

2026-07-21 16:24:05 +02:00

FastSync supports SSH/TCP auto-detection. Rsync offers several connection flags:

Missing flags

-e, --rsh <COMMAND> — specify remote shell (e.g. --rsh='ssh -p 2222 -i key')
--rsync-path <PATH> — path to fastsync-server on remote
--blocking-io / --no-blocking-io
--sockopts <OPTS> — custom TCP options
--address <ADDRESS> — bind address for outgoing connections
-4, --ipv4 — prefer IPv4
-6, --ipv6 — prefer IPv6
--password-file <FILE> — read daemon password from file

Current code

transport_ssh.c — hardcoded SSH command construction
transport_tcp.c — getaddrinfo with AF_UNSPEC
config.h — no fields for custom SSH/rsh/address/ipv4/6

Impact

--rsh: users need custom SSH ports, keys, jump hosts
--rsync-path: binary not in remote $PATH
--address/--ipv4/--ipv6: multi-homed hosts or IPv6-only networks

Implementation notes

--rsh: replace hardcoded SSH with user command template
--rsync-path: prepend to SSH remote argument
--ipv4/--ipv6: set ai_family in getaddrinfo
--sockopts: parse key=value, call setsockopt

FastSync supports SSH/TCP auto-detection. Rsync offers several connection flags: ## Missing flags - `-e, --rsh <COMMAND>` — specify remote shell (e.g. --rsh='ssh -p 2222 -i key') - `--rsync-path <PATH>` — path to fastsync-server on remote - `--blocking-io` / `--no-blocking-io` - `--sockopts <OPTS>` — custom TCP options - `--address <ADDRESS>` — bind address for outgoing connections - `-4, --ipv4` — prefer IPv4 - `-6, --ipv6` — prefer IPv6 - `--password-file <FILE>` — read daemon password from file ## Current code - `transport_ssh.c` — hardcoded SSH command construction - `transport_tcp.c` — getaddrinfo with AF_UNSPEC - `config.h` — no fields for custom SSH/rsh/address/ipv4/6 ## Impact - `--rsh`: users need custom SSH ports, keys, jump hosts - `--rsync-path`: binary not in remote $PATH - `--address`/`--ipv4`/`--ipv6`: multi-homed hosts or IPv6-only networks ## Implementation notes - `--rsh`: replace hardcoded SSH with user command template - `--rsync-path`: prepend to SSH remote argument - `--ipv4`/`--ipv6`: set ai_family in getaddrinfo - `--sockopts`: parse key=value, call setsockopt

TapTap referenced this issue

2026-07-29 18:27:24 +02:00

Rsync parity: remote shell and connection options #126

TapTap referenced this issue from a commit

2026-07-29 19:24:48 +02:00

feat: add rsync parity flags - symlink, metadata, output modes, delete options, file selection, connection options (#120, #121, #122, #127, #128, #129, #130)

TapTap referenced this issue

2026-07-29 19:29:55 +02:00

Comprehensive fix: security, bugs, refactoring, tests, and rsync parity features #173

TapTap closed this issue

2026-07-30 18:17:29 +02:00

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