scandir man page on Ultrix

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scandir(3)							    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)
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