How to display all filename of that extension using C

[kujahleague]

Dear all
Is there any way to show list of filename that we have on that current directory to the user?
Thanks

[sun99]

// displays all the files *.c files is current directory

#include <sys/types.h>
#include <sys/dir.h>
#include <sys/param.h>
#include <stdio.h>

#define FALSE 0
#define TRUE 1

extern int alphasort();
char pathname[MAXPATHLEN];


main() {
int count,i;
struct direct **files;
int filefilter();

if (getwd(pathname) == NULL )
{
printf("Error getting current directory");
exit(0);
}


count = scandir(pathname, &files, filefilter, alphasort);
if (count <= 0)
{
printf( "No files in this directoryn");
exit(0);
}

for (i=1;i<count+1;++i)
printf("%s ",files[i-1]->d_name);
printf("\n");
}

int filefilter(struct direct *entry)
{
char *ptr;


if ((strcmp(entry->d_name, ".")== 0) || (strcmp(entry->d_name, "..") == 0))
return (FALSE);

ptr = rindex(entry->d_name, '.');
if ((ptr != NULL)&& (strcmp(ptr, ".c") == 0) )
return (TRUE);
else
return(FALSE);
}

[kujahleague]

thank you very much

but my compiler can't seem to find sys/dir.h
is there any way to correct it?
I'm using 2 compilers
DEV C++ (Bloodshed environment)
and also using UNIX GCC to compile the program