CVS commit: src/lib/libc/stdio

["Christos Zoulas" <christos%netbsd.org@localhost>]

Module Name:    src
Committed By:   christos
Date:           Sat Aug 27 13:15:48 UTC 2016

Modified Files:
        src/lib/libc/stdio: fgetwln.c

Log Message:
Improvements to fgetwln(3) from Andrey Chernov:

1) Set the stdio error indicator on __slbexpand() failure.

2) fgetwc(3) may succeed even when ferror(3) is already set
   (for example, consider a program using SIG_IGN on SIGTTIN,
   reading from the tty while in the background, getting EIO,
   then coming to the foreground and reading again).
   So do not force fgetwln(3) to fail in such a case either.
   (Yes, the program should probably clearerr(3) before
   reading again, but let's be nicer in case it forgets.)


To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/lib/libc/stdio/fgetwln.c

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