The getpwuid function returns information about a user database
    entry for the specified uid.

    The getpwuid_r function is a reentrant version of getpwuid.

    These functions are OpenVMS Alpha only.

    Format

      #include  <pwd.h>

      struct passwd *getpwuid  (uid_t uid); (ISO POSIX-1)

      struct passwd *getpwuid  (uid_t uid, . . . ); (DEC C Extension)

      int getpwuid_r  (uid_t uid, struct passwd *pwd, char *buffer,
                      size_t bufsize, struct passwd **result);
                     (ISO POSIX-1)

      int getpwuid_r  (uid_t uid, struct passwd *pwd, char *buffer,
                      size_t bufsize, struct passwd **result, . . . );
                      (DEC C Extension)