Slightly modernize realpath(3).
SUSv4 requires that implementation returns EINVAL if supplied path is NULL,
and ENOENT if path is empty string [1].
Bring prototype in conformance with SUSv4, adding restrict keywords.
Allow the resolved path buffer pointer be NULL, in which case realpath(3)
allocates storage with malloc().
MFC r206898:
Free() is not allowed to modify errno, remove safety brackets around it.
Add small optimization, do not copy a string to the buffer that is
to be freed immediately after.
MFC r206997:
Move realpath(3) prototype to a POSIX section.
MFC r206998:
Add standards section, improve wording, taking into account the handling
of NULL and changed type in declaration.
track.
The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
Back out a dubious Lite2 change to "optimise" getcwd() to look at $PWD
because it's potentially dangerous (think: symlink races). Move
realpath() back to it's original location, and remove getcwd_physical()
by renaming it back to getcwd() and zapping the original getcwd wrapper.
Noticed by: bde
The following commits already happened but the log message got lost:
Modified Files:
gen/Makefile.inc gen/getcwd.c stdlib/Makefile.inc
Removed Files:
gen/realpath.3
