CVS commit: src/usr.bin/ftp

["Luke Mewburn" <lukem%netbsd.org@localhost>]

Module Name:    src
Committed By:   lukem
Date:           Sat Dec  6 06:20:23 UTC 2025

Modified Files:
        src/usr.bin/ftp: extern.h ftp.c util.c version.h

Log Message:
ftp: fix ascii transfers with progress bar

Handle stdio interruption by signals and improve error handling
in getc() and putc() on the control and data channels.
Provide ftp_getc() and ftp_putc() wrappers that:
- Retry the operation on EINTR or EAGAIN instead of failing.
- Store other error codes in a return variable separate to errno,
  and use that variable in ferror() handling, for more correct
  error messages.

Fixes the progress bar display in ascii mode transfers.

(Note that I haven't fixed interrupted reads from stdin or
writes to ttyout; that's a much larger refactor that's out of scope).

Fix PR bin/59587 from Johnny Billquist, with the fix
inspired by the patch in that PR.


To generate a diff of this commit:
cvs rdiff -u -r1.84 -r1.85 src/usr.bin/ftp/extern.h
cvs rdiff -u -r1.178 -r1.179 src/usr.bin/ftp/ftp.c
cvs rdiff -u -r1.168 -r1.169 src/usr.bin/ftp/util.c
cvs rdiff -u -r1.100 -r1.101 src/usr.bin/ftp/version.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.