Man Getpw en anglais
GETPW(3)                   Linux Programmer's Manual                  GETPW(3)



 

NAME


       getpw - Re-construct password line entry

 

SYNOPSIS


       #define _GNU_SOURCE
       #include 
       #include 

       int getpw(uid_t uid, char *buf);

 

DESCRIPTION






       The  getpw()  function  re-constructs  the  password line entry for the
       given user ID 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  as follows:

           struct passwd {
               char   *pw_name;       /* username */
               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 getpw() function returns 0 on success; on error, it returns -1, and
       errno is set to indicate the error.

 

ERRORS


       EINVAL buf is NULL.

       ENOENT No user corresponding to uid.

       ENOMEM Insufficient memory to allocate passwd structure.

 

FILES


       /etc/passwd
              password database file

 

CONFORMING TO


       SVr2.

 

BUGS


       The getpw() function is dangerous  as  it  may  overflow  the  provided
       buffer buf.  It is obsoleted by getpwuid(3).

 

SEE ALSO


       endpwent(3), fgetpwent(3), getpwent(3), getpwnam(3), getpwuid(3), putp-
       went(3), setpwent(3), passwd(5)

 

COLOPHON


       This page is part of release 3.05 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.



GNU                               2007-12-12                          GETPW(3)