getspnam

getspnam是linux函数库中访问shadow的口令。

getspnam() 函数功能：访问shadow口令

原型定义：struct spwd *getspnam(char *name);

表头文件：

#include <shadow.h>

信息存贮在如下的结构体之中

struct spwd {

char *sp_namp; /* Login name. */

char *sp_pwdp; /* Encrypted password. */

long int sp_lstchg; /* Date of last change. */

long int sp_min; /* Minimum number of days between changes. */

long int sp_max; /* Maximum number of days between changes. */

long int sp_warn; /* Number of days to warn user to change

the password. */

long int sp_inact; /* Number of days the account may be

inactive. */

long int sp_expire; /* Number of days since 1970-01-01 until

account expires. */

unsigned long int sp_flag; /* Reserved. */

};