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OpenSolaris 2009.06 - man page for resolvepath (opensolaris section 2)

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resolvepath(2)				   System Calls 			   resolvepath(2)

       resolvepath - resolve all symbolic links of a path name

       #include <unistd.h>

       int resolvepath(const char *path, char *buf, size_t bufsiz);

       The  resolvepath() function fully resolves all symbolic links in the path name path into a
       resulting path name free of symbolic links and places the resulting path name in the  buf-
       fer buf which has size bufsiz. The resulting path name names the same file or directory as
       the original path name. All ``.'' components are eliminated and every  non-leading  ``..''
       component is eliminated together with its preceding directory component. If leading ``..''
       components reach to the root directory, they are replaced by ``/''. If the number of bytes
       in  the	resulting path name is less than bufsiz, the contents of the remainder of buf are

       Upon successful completion, resolvepath() returns the count of bytes placed in the buffer.
       Otherwise,  it  returns	 -1,  leaves the buffer unchanged, and sets errno to indicate the

       The resolvepath() function will fail if:

       EACCES	       Search permission is denied for a component of the path prefix of path  or
		       for  a  path  prefix component resulting from the resolution of a symbolic

       EFAULT	       The path or buf argument points to an illegal address.

       EIO	       An I/O error occurred while reading from the file system.

       ENOENT	       The path argument is an empty string or a component of path or a path name
		       component  produced by resolving a symbolic link does not name an existing

       ELOOP	       Too many symbolic links were encountered in resolving path.

       ENAMETOOLONG    The length of path exceeds PATH_MAX, or a path name  component  is  longer
		       than  NAME_MAX. Path name resolution of a symbolic link produced an inter-
		       mediate result whose length exceeds PATH_MAX or a component  whose  length
		       exceeds NAME_MAX.

       ENOTDIR	       A  component  of  the  path  prefix  of path or of a path prefix component
		       resulting from the resolution of a symbolic link is not a directory.

       No more than PATH_MAX bytes will be placed in the buffer. Applications should  not  assume
       that the returned contents of the buffer are null-terminated.

       readlink(2), realpath(3C)

SunOS 5.11				   12 May 1997				   resolvepath(2)
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