getpw - Re-construct password line entry
#include <pwd.h>
#include <sys/types.h>
int getpw(uid_t uid, char *buf);
The getpw() function re-constructs the password line entry for the
given user uid uid in the buffer buf. The returned buffer contains a
line of format
name:passwd:uid:gid:gecos:dir:shell
The passwd structure is defined in <pwd.h> as follows:
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 */
};
The getpw() function returns 0 on success, or -1 if an error occurs.
ENOMEM Insufficient memory to allocate passwd structure.
/etc/passwd
password database file
SYSVr2.
The getpw() function is dangerous as it may overflow the provided
buffer buf. It is obsoleted by getpwuid().
fgetpwent(3), getpwent(3), setpwent(3), endpwent(3), getpwnam(3), getp-
wuid(3), putpwent(3), passwd(5)
GNU 1996-05-27 GETPW(3)
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