ls1.c

UNIX高级环境编程（第二版）文件系统部分的程序

#include    <sys/types.h>
#include    <dirent.h>
#include    "ourhdr.h"

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

    if (argc != 2)
        err_quit("a single argument (the directory name) is required");

    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);
    exit(0);
}