apue.2e.fig1.3.c

apue.2e.fig1.3.c

#include "apue.h"
#include <dirent.h>

int main(int argc, char *argv[])
{
        DIR *dp;
        struct dirent *dirp;

        if (argc != 2)
        {
                err_quit("usage: ls dir_name");
        }

        if ((dp = opendir(argv[1])) == NULL)
        {
                err_sys("can't open %s", argv[1]);
        }

        while ((dirp = readdir(dp)) != NULL)
        {
                printf("%s\n", dirp->d_name);
        }

        closedir(dp);

        return 0;
}