linux opendir函数原型

#include <dirent.h>

DIR *opendir(const char *name);

DIR *dir = opendir("/path/to/directory");
if (dir == NULL) {
    perror("Error opening directory");
    // 进一步处理错误，例如退出程序或重试
}

struct dirent *entry;
while ((entry = readdir(dir)) != NULL) {
    printf("%s\n", entry->d_name);
}
if (errno != 0) {
    perror("Error reading directory");
    // 进一步处理错误
}

#include <stdio.h>
#include <dirent.h>
#include <stdlib.h>

int main() {
    DIR *dir;
    struct dirent *entry;

    if ((dir = opendir("/path/to/directory")) == NULL) {
        perror("Error opening directory");
        exit(EXIT_FAILURE);
    }

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

    if (errno != 0) {
        perror("Error reading directory");
    }

    closedir(dir);
    return 0;
}