getpw(3) - phpMan

GETPW(3)                   Linux Programmer's Manual                  GETPW(3)

NAME
       getpw - reconstruct password line entry
SYNOPSIS
       #define _GNU_SOURCE             /* See feature_test_macros(7) */
       #include <sys/types.h>
       #include <pwd.h>
       int getpw(uid_t uid, char *buf);
DESCRIPTION
       The getpw() function reconstructs 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 <pwd.h> 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;      /* user information */
               char   *pw_dir;        /* home directory */
               char   *pw_shell;      /* shell program */
           };
       For more information about the fields of this structure, see passwd(5).
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  buf-
       fer 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 3.53 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                               2010-10-21                          GETPW(3)