ultrix man page for scandir

scandir(3)						     Library Functions Manual							scandir(3)

Name
       scandir - scan a directory

Syntax
       #include <sys/types.h>
       #include <sys/dir.h>

       scandir(dirname, namelist, select, compar)
       char *dirname;
       struct direct *(*namelist[]);
       int (*select)();
       int (*compar)();

       alphasort(d1, d2)
       struct direct **d1, **d2;

Description
       The  subroutine	reads the directory dirname and builds an array of pointers to directory entries using It returns the number of entries in
       the array and a pointer to the array through namelist.

       The select parameter is a pointer to a user supplied subroutine which is called by to select which entries are to be included in the array.
       The  select routine is passed a pointer to a directory entry and should return a non-zero value if the directory entry is to be included in
       the array.  If select is null, then all the directory entries will be included.

       The compar parameter is a pointer to a user supplied subroutine which is passed to to sort the completed array.	If this pointer  is  null,
       the array is not sorted.  The is a routine which can be used for the compar parameter to sort the array alphabetically.

       The  memory  allocated  for  the array can be deallocated with free by freeing each pointer in the array and the array itself.  For further
       information, see

Diagnostics
       Returns -1 if the directory cannot be opened for reading or if cannot allocate enough memory to hold all the data structures.

See Also
       directory(3), malloc(3), qsort(3), dir(5)

																	scandir(3)