Do things in Dir by C

C語言中如何處理目錄中每筆記錄

在freeBSD裡面的man中說明：

Sample code which searches a directory for entry ``name'' is:
DIR* dirp;
struct direct* dp;
len = strlen(name);
dirp = opendir(".");
while ((dp = readdir(dirp)) != NULL)
if (dp->d_namlen == len && !strcmp(dp->d_name, name)) {
(void)closedir(dirp);
return FOUND;
}
(void)closedir(dirp);
return NOT_FOUND;

十分簡單卻有用。