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realpath.3: clarify that returned pathname is NULL terminated 

Also clarify that null-byte is included in PATH_MAX limit.
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Michael Kerrisk 2008-09-26 07:22:00 +02:00
parent d0cb7cc649
commit bf0e2b8a8e
1 changed files with 6 additions and 3 deletions
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9
man3/realpath.3
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@ -23,7 +23,7 @@
.\" Rewritten old page, 990824, aeb@cwi.nl
.\" 2004-12-14, mtk, added discussion of resolved_path == NULL
.\"
.TH REALPATH 3 2008-08-21 "" "Linux Programmer's Manual"
.TH REALPATH 3 2008-09-26 "" "Linux Programmer's Manual"
.SH NAME
realpath \- return the canonicalized absolute pathname
.SH SYNOPSIS
@ -49,9 +49,12 @@ to
and extra \(aq/\(aq
characters in the null-terminated string named by
.I path
and stores the canonicalized absolute pathname in the buffer of size
to produce a canonicalized absolute pathname.
The resulting pathname is stored as a null-terminated string,
up to a maximum of
.B PATH_MAX
named by
butes,
in the buffer pointed to by
.IR resolved_path .
The resulting path will have no symbolic link,
.I "/./"