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RocketLink!--> Man page versions: OpenBSD FreeBSD RedHat Solaris Others

REALPATH(3)               OpenBSD Programmer's Manual              REALPATH(3)

     realpath - returns the canonicalized absolute pathname

     #include <sys/param.h>
     #include <stdlib.h>

     char *
     realpath(const char *pathname, char resolvedname[MAXPATHLEN]);

     The realpath() function resolves all symbolic links, extra ``/'' charac-
     ters and references to /./ and /../ in pathname, and copies the resulting
     absolute pathname into the memory referenced by resolvedname. The
     resolvedname argument must refer to a buffer capable of storing at least
     MAXPATHLEN characters.

     The realpath() function will resolve both absolute and relative paths and
     return the absolute pathname corresponding to pathname. All but the last
     component of pathname must exist when realpath() is called.

     The realpath() function returns resolved_name on success.  If an error
     occurs, realpath() returns NULL, and resolved_name contains the pathname
     which caused the problem.

     The function realpath() may fail and set the external variable errno for
     any of the errors specified for the library functions chdir(2),
     close(2),  fchdir(2),  lstat(2),  open(2),  readlink(2) and getcwd(3).

     This implementation of realpath() differs slightly from the Solaris im-
     plementation.  The 4.4BSD version always returns absolute pathnames,
     whereas the Solaris implementation will, under certain circumstances, re-
     turn a relative resolved_path when given a relative pathname.


     The realpath() function call first appeared in 4.4BSD.

OpenBSD 2.6                    February 16, 1994                             1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.

(Corrections, notes, and links courtesy of RocketAware.com)

[Detailed Topics]
FreeBSD Sources for realpath(3) functions
OpenBSD sources for realpath(3)

[Overview Topics]

Up to: Directory Access - Accessing directories of files, browsing, management, et al.
Up to: File Path Name Strings - Operations on hierarchical names (paths, files, identifiers)

RocketLink!--> Man page versions: OpenBSD FreeBSD RedHat Solaris Others

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