检测到堆栈粉碎但字符数组在限制范围内

Question

我正在努力了解我做错了什么。来自键盘的输入在字符数组限制内... 即使输入是 8 个字符长，它也会抛出错误。只要字符长度为 6 个字符，它就可以正常工作。

这是我的代码（我可以发誓它在 1 小时前一直有效）

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "functions.h"
#define SLEN 81
#define FILE_NAME "../database.txt"
void add_members(char *name);
int main(void)
{   
    char name[SLEN], surname[SLEN], address[SLEN];
    unsigned int dob, start_date, end_date;
    add_members(&name[SLEN]);

    return 0;
}

void add_members(char *name)
{   
    FILE *file;
    if ((file = fopen(FILE_NAME, "a")) == NULL)
    {
        printf("cant open file %s\n", FILE_NAME);
        exit(EXIT_FAILURE);
    }

    fputs("Insert FIRST NAME: ", stdout);
    fgets(name, SLEN, stdin); // appears the problem to be here
    check_string(name); // this is defined in another file
    fputs(name, file);
    printf("Name added to database: %s\n", name);

    if (fclose(file) != 0)
        printf("error in closing file %s\n", FILE_NAME);
    printf("File: %s closed\n", FILE_NAME);
}

Answer 1

add_members(&name[SLEN]);

这是不正确的，因为 &name[SLEN] 是数组末尾之后的字节。需要的是数组的开头。

add_members(name); 或 add_members(&name[0]);

检测到堆栈粉碎但字符数组在限制范围内

stack smashing detected but the char array is within limits

c

stack-smash