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admin.c
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#include "admin.h"
#include "mylib.h"
#include "show.h"
#include "student.h"
//功 能: 管理员的主要功能选择
//返回值: 0, 正常返回
// -1，文件不存在、打开或创建失败
// -2, 退出登录
int adm_opt()
{
int ret = adm_vertify();
if(ret == -1)
return -1;
if(ret == -2)
return -2;
alt_tips("管理员登录成功");
for(;;) {
adm_opt_show();
int select = get_select();
switch(select)
{
case 1: //学生报名
ret = stu_add();
if( ret==0 ) {
alt_tips("添加成功");
} else if(ret == -1) {
alt_tips("文件错误，添加失败");
} else if(ret == -2) {
alt_tips("已取消添加");
}
break;
case 2: //学生查找
ret = stu_find();
if( ret ==0) {
alt_tips("已退出查询");
} else if(ret == -1) {
alt_tips("文件错误，不能查询");
}
break;
/*
*case 3: //老师登记
* break;
*case 4: //老师查找
* break;
*/
case 5: //修改密码
ret = adm_alt_psw();
if( ret==0 ) {
alt_tips("修改密码成功");
} else if(ret == -1) {
alt_tips("文件错误，密码修改失败");
} else if(ret == -2) {
alt_tips("已取消修改密码");
}
break;
case -1:
return -2;
default:
cover_char( WARNING_X, 0, CONSOLE_LEN);
cover_char( MAIN_X_SUB-5, 0, CONSOLE_LEN);
printf("\033[%d;%dH\033[31m输入的序号没有匹配的功能，请重新输入\033[0m",WARNING_X-2, WARNING_Y);
printf("\033[%d;%dH\033[0m", MAIN_X_SUB-5, MAIN_Y_SUB+6);
continue;
}
}
}
//功 能: 验证或创建管理员的身份
//返回值: 0,验证或创建成功
// -1,文件操作失败
// -2,取消登录,返回主界面
int adm_vertify()
{
if( access(ADM_DB, F_OK) != 0 ) {
//没有管理员，询问创建
alt_tips("");
adm_create_show();
char psw[PSW_LEN+1] = "";
char psw2[PSW_LEN+1] = "";
do {
printf("\033[%d;%dH",MAIN_X_SUB, MAIN_Y_SUB+10);
get_psw(psw);
if( strcmp(psw, "b")== 0 || strcmp(psw,"back") == 0 )
return -2;
printf("\033[%d;%dH",MAIN_X_SUB, MAIN_Y_SUB+10);
printf("\033[2B");
get_psw(psw2);
if( strcmp(psw2, "b")== 0 || strcmp(psw2,"back") == 0)
return -2;
if( strcmp(psw, psw2)!= 0) {
cover_char( WARNING_X, 0, CONSOLE_LEN);
printf("\033[%d;%dH\033[31m两次输入的密码不一致\033[0m\n",WARNING_X, WARNING_Y);
}
} while ( strcmp(psw,psw2)!=0 );
FILE *fp = fopen(ADM_DB, "w");
ERRP( fp==NULL, "fopen", return -1);
fwrite(psw, PSW_LEN+1, 1, fp);
fclose(fp);
return 0;
}
//有管理员直接登录
FILE *fp = fopen(ADM_DB, "r");
ERRP( fp==NULL, "fopen", return -1);
char psw[PSW_LEN+1] = "";
char psw2[PSW_LEN+1] = "";
fread(psw, PSW_LEN+1, 1, fp);
alt_tips("");
adm_login_show();
do {
printf("\033[%d;%dH",MAIN_X_SUB, MAIN_Y_SUB+10);
get_psw(psw2);
if( strcmp(psw2, "b")== 0 || strcmp(psw2,"back") == 0)
return -2;
if( strcmp(psw, psw2)!= 0) {
cover_char( WARNING_X, 0, CONSOLE_LEN);
printf("\033[%d;%dH\033[31m密码不正确，重新输入\033[0m\n",WARNING_X, WARNING_Y);
}
} while( strcmp(psw, psw2) != 0);
return 0;
}
//功 能: 修改管理员密码
//返回值: 0,修改成功
// -1，文件操作失败
// -2, 取消修改
int adm_alt_psw()
{
alt_tips("");
adm_alt_show();
char o_psw[PSW_LEN+1] = "";
FILE *fp = fopen(ADM_DB, "r");
ERRP( fp==NULL, "fopen", return -1);
fread(o_psw, PSW_LEN+1, 1, fp);
fclose(fp);
char psw[PSW_LEN+1] = "";
char psw2[PSW_LEN+1] = "";
char psw3[PSW_LEN+1] = "";
do {
printf("\033[%d;%dH",MAIN_X_SUB, MAIN_Y_SUB+10);
get_psw(psw);
if( strcmp(psw, "b")== 0 || strcmp(psw,"back") == 0 )
return -2;
printf("\033[%d;%dH",MAIN_X_SUB+2, MAIN_Y_SUB+10);
get_psw(psw2);
if( strcmp(psw2, "b")== 0 || strcmp(psw2,"back") == 0)
return -2;
printf("\033[%d;%dH",MAIN_X_SUB+4, MAIN_Y_SUB+10);
get_psw(psw3);
if( strcmp(psw3, "b")== 0 || strcmp(psw2,"back") == 0)
return -2;
if( strcmp(psw, o_psw) != 0) {
cover_char( WARNING_X, 0, CONSOLE_LEN);
printf("\033[%d;%dH\033[31m密码不正确，请输入正确的密码\033[0m\n",WARNING_X, WARNING_Y);
}
if( strcmp(psw2, psw3)!= 0) {
cover_char( WARNING_X, 0, CONSOLE_LEN);
printf("\033[%d;%dH\033[31m两次输入的新密码不一致\033[0m\n",WARNING_X, WARNING_Y);
}
} while ( strcmp(psw2,psw3)!=0 || strcmp(psw, o_psw)!=0 );
fp = fopen(ADM_DB, "w");
ERRP( fp==NULL, "fopen", return -1);
fwrite(psw2, PSW_LEN+1, 1, fp);
fclose(fp);
return 0;
}