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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/canonicalize_file_name.3 | |
parent | Initial commit. (diff) | |
download | manpages-399644e47874bff147afb19c89228901ac39340e.tar.xz manpages-399644e47874bff147afb19c89228901ac39340e.zip |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/canonicalize_file_name.3')
-rw-r--r-- | man3/canonicalize_file_name.3 | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/man3/canonicalize_file_name.3 b/man3/canonicalize_file_name.3 new file mode 100644 index 0000000..5d9e466 --- /dev/null +++ b/man3/canonicalize_file_name.3 @@ -0,0 +1,81 @@ +'\" t +.\" Copyright 2013 Michael Kerrisk <mtk.manpages@gmail.com> +.\" (Replaces an earlier page by Walter Harms and Michael Kerrisk) +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH canonicalize_file_name 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +canonicalize_file_name \- return the canonicalized absolute pathname +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */" +.B #include <stdlib.h> +.PP +.BI "char *canonicalize_file_name(const char *" path ");" +.fi +.SH DESCRIPTION +The +.BR canonicalize_file_name () +function returns a null-terminated string containing +the canonicalized absolute pathname corresponding to +.IR path . +In the returned string, symbolic links are resolved, as are +.I . +and +.I .. +pathname components. +Consecutive slash +.RI ( / ) +characters are replaced by a single slash. +.PP +The returned string is dynamically allocated by +.BR canonicalize_file_name () +and the caller should deallocate it with +.BR free (3) +when it is no longer required. +.PP +The call +.I canonicalize_file_name(path) +is equivalent to the call: +.PP +.in +4n +.EX +realpath(path, NULL); +.EE +.in +.SH RETURN VALUE +On success, +.BR canonicalize_file_name () +returns a null-terminated string. +On error (e.g., a pathname component is unreadable or does not exist), +.BR canonicalize_file_name () +returns NULL and sets +.I errno +to indicate the error. +.SH ERRORS +See +.BR realpath (3). +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR canonicalize_file_name () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +GNU. +.SH SEE ALSO +.BR readlink (2), +.BR realpath (3) |