GETPWENT (3)
get password file entry
SYNOPSIS
#include <pwd.h>
#include <sys/types.h>
struct passwd *getpwent(void);
void setpwent(void);
void endpwent(void);
DESCRIPTION
The getpwent() function returns a pointer to a structure containing
the broken out fields of a line from /etc/passwd. The first time it
is called it returns the first entry; thereafter, it returns successive
entries.
The setpwent() function rewinds the file pointer to the beginning
of the /etc/passwd file.
The endpwent() function closes the /etc/passwd file.
The passwd structure is defined in <pwd.h> as follows:
8n 16n 32n
struct passwd {
char *pw_name; /* user name */
char *pw_passwd; /* user password */
uid_t pw_uid; /* user id */
gid_t pw_gid; /* group id */
char *pw_gecos; /* real name */
char *pw_dir; /* home directory */
char *pw_shell; /* shell program */
};
RETURN VALUE
The getpwent() function returns the passwd structure, or NULL if
there are no more entries or an error occurs.
ERRORS
ENOMEM
Insufficient memory to allocate passwd structure.
FILES
CONFORMING TO
SEE ALSO
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