我是C的新手,我在使用chdir()时遇到了麻烦。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将chdir()放入该文件夹并再创建两个文件。当我尝试通过finder(手动)访问该文件夹时,我没有权限。无论如何这里是我的代码,任何提示?
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;
}
答案 0 :(得分:5)
您实际上更改目录,您只需为chdir
声明一个函数原型。然后,您继续将该函数指针与零(这与NULL
相同)进行比较,这就是失败的原因。
您应该为原型包含头文件<unistd.h>
,然后实际调用函数:
if (chdir(accountType) == -1)
{
printf("Failed to change directory: %s\n", strerror(errno));
return; /* No use continuing */
}
答案 1 :(得分:3)
int chdir(char *accountType);
没有调用该函数,请尝试代替代码:
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 string:
printf("%s\n", accountType);