Perl: Read directories and assign to array Post: 302326729

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scandir

scandir(3UCB)					     SunOS/BSD Compatibility Library Functions					     scandir(3UCB)

NAME

       scandir, alphasort - scan a directory

SYNOPSIS

       /usr/ucb/cc [ flag... ] file...
       #include <sys/types.h>
       #include <sys/dir.h>

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

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

DESCRIPTION

       The scandir() function reads the directory dirname and builds an array of pointers to directory entries using malloc(3C). The second param-
       eter is a pointer to an array of structure pointers. The third parameter is a pointer to a routine which is called  with  a  pointer  to  a
       directory  entry  and  should return a non zero value if the directory entry should be included in the array. If this pointer is NULL, then
       all the directory entries will be included. The last argument is a pointer to a routine which is passed to qsort(3C), which sorts the  com-
       pleted array. If this pointer is NULL, the array is not sorted.

       The alphasort() function sorts the array alphabetically.

RETURN VALUES

       The  scandir() function returns the number of entries in the array and a pointer to the array through the parameter namelist. The scandir()
       function returns -1 if the directory cannot be opened for reading or if malloc(3C) cannot allocate enough  memory  to  hold  all  the  data
       structures.

       The  alphasort() function returns an integer greater than, equal to, or less than 0 if the directory entry name pointed to by d1 is greater
       than, equal to, or less than the directory entry name pointed to by d2.

USAGE

       The scandir() and alphasort() functions have transitional interfaces for 64-bit file offsets. See lf64(5).

SEE ALSO

       cc(1B), getdents(2), malloc(3C), qsort(3C), readdir(3UCB), readdir(3C), lf64(5)

NOTES

       Use of these functions should be restricted to applications written on BSD platforms.  Use of  these  functions	with  any  of  the  system
       libraries or in multithreaded applications is unsupported.

SunOS 5.11							    30 Oct 2007 						     scandir(3UCB)