PUTSPENT(3C)PUTSPENT(3C)NAMEputspent - write shadow password file entry
SYNOPSIS
#include <shadow.h>
int putspent(const struct spwd *p, FILE *fp);
DESCRIPTION
The putspent() function is the inverse of getspent(). See getsp‐
nam(3C). Given a pointer to a spwd structure created by getspent() or
getspnam(), putspent() writes a line on the stream fp that matches the
format of /etc/shadow.
The spwd structure contains the following members:
char *sp_namp;
char *sp_pwdp;
int sp_lstchg;
int sp_min;
int sp_max;
int sp_warn;
int sp_inact;
int sp_expire;
unsigned int sp_flag;
If the sp_min, sp_max, sp_lstchg, sp_warn, sp_inact, or sp_expire mem‐
ber of the spwd structure is −1, or if sp_flag is 0, the corresponding
/etc/shadow field is cleared.
RETURN VALUES
The putspent() function returns a non-zero value if an error was
detected during its operation. Otherwise, it returns 0.
USAGE
Since this function is for internal use only, compatibility is not
guaranteed. For this reason, its use is discouraged. If used at all,
if should be used with putpwent(3C) to update the password file.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌───────────────┬─────────────────┐
│ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├───────────────┼─────────────────┤
│MT-Level │ Unsafe │
└───────────────┴─────────────────┘
SEE ALSOgetpwnam(3C), getspnam(3C), putpwent(3C), attributes(5)
Jan 23, 2008 PUTSPENT(3C)
