pathfind(3G)                      SDK R4.11                     pathfind(3G)


NAME
       pathfind - search for named file in named directories

SYNOPSIS
       cc [flag ...] file ...  -lgen [library ...]

       #include <libgen.h>

       char *pathfind (const char *path, const char *name, const char
           *mode);

DESCRIPTION
       pathfind searches the directories named in path for the file name.
       The directories named in path are separated by semicolons.  mode is a
       string of option letters chosen from the set rwxfbcdpugks:
                            Letter   Meaning
                            ---------------------------
                              r      readable
                              w      writable
                              x      executable
                              f      normal file
                              b      block special
                              c      character special
                              d      directory
                              p      FIFO (pipe)
                              u      set user ID bit
                              g      set group ID bit
                              k      sticky bit
                              s      size nonzero
       Options read, write, and execute are checked relative to the real
       (not the effective) user ID and group ID of the current process.

       If the file name, with all the characteristics specified by mode, is
       found in any of the directories specified by path, then pathfind
       returns a pointer to a string containing the member of path, followed
       by a slash character (/), followed by name.

       If name begins with a slash, it is treated as an absolute path name,
       and path is ignored.

       An empty path member is treated as the current directory.  ./ is not
       prepended at the occurrence of the first match; rather, the unadorned
       name is returned.

EXAMPLES
       To find the ls command using the PATH environment variable:

              pathfind (getenv ("PATH"), "ls", "rx")

DIAGNOSTICS
       If no match is found, pathname returns a null pointer, ((char *) 0).

SEE ALSO
       access(2), mknod(2), stat(2), getenv(3C).
       sh(1), test(1).

NOTES
       The string pointed to by the returned pointer is stored in a static
       area that is reused on subsequent calls to pathfind.


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