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我是 C 新手,在使用 chdir() 时遇到问题。我使用一个函数来获取用户输入,然后我从中创建一个文件夹并尝试 chdir() 进入该文件夹并创建另外两个文件。但是,当我尝试通过 finder(手动)访问该文件夹时,我没有权限。无论如何,这是我的代码,有什么提示吗?

int newdata(void){
    //Declaring File Pointers
    FILE*passwordFile;
    FILE*usernameFile;

    //Variables for
    char accountType[MAX_LENGTH];
    char username[MAX_LENGTH];
    char password[MAX_LENGTH];

    //Getting data
    printf("\nAccount Type: ");
    scanf("%s", accountType);
    printf("\nUsername: ");
    scanf("%s", username);
    printf("\nPassword: ");
    scanf("%s", password);

    //Writing data to files and corresponding directories
    umask(0022);
    mkdir(accountType); //Makes directory for account
    printf("%d\n", *accountType);
    int chdir(char *accountType);
    if (chdir == 0){
        printf("Directory changed successfully.\n");
    }else{
        printf("Could not change directory.\n");
    }

    //Writing password to file
    passwordFile = fopen("password.txt", "w+");
    fputs(password, passwordFile);
    printf("Password Saved \n");
    fclose(passwordFile);

    //Writing username to file
    usernameFile = fopen("username.txt", "w+");
    fputs(password, usernameFile);
    printf("Password Saved \n");
    fclose(usernameFile);

    return 0;


}
4

2 回答 2

5

您实际上并没有更改目录,您只需为chdir. 然后,您继续将该函数指针与零(与 相同NULL)进行比较,这就是它失败的原因。

您应该包含原型的头文件<unistd.h>,然后实际调用该函数:

if (chdir(accountType) == -1)
{
    printf("Failed to change directory: %s\n", strerror(errno));
    return;  /* No use continuing */
}
于 2013-01-06T05:25:09.490 回答
3
int chdir(char *accountType); 

没有调用该函数,请尝试以下代码:

mkdir(accountType); //Makes directory for account
printf("%d\n", *accountType);
if (chdir(accountType) == 0) {
    printf("Directory changed successfully.\n");
}else{
    printf("Could not change directory.\n");
}

另外, printf 行看起来很可疑,我想你想要的是 print accountType 字符串:

printf("%s\n", accountType);
于 2013-01-06T05:30:52.370 回答