diff options
Diffstat (limited to 'libc/pwd_grp/pwent.c')
-rw-r--r-- | libc/pwd_grp/pwent.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libc/pwd_grp/pwent.c b/libc/pwd_grp/pwent.c new file mode 100644 index 000000000..fd65db21a --- /dev/null +++ b/libc/pwd_grp/pwent.c @@ -0,0 +1,62 @@ +/* + * pwent.c - This file is part of the libc-8086/pwd package for ELKS, + * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <pwd.h> +#include <fcntl.h> + +/* + * setpwent(), endpwent(), and getpwent() are included in the same object + * file, since one cannot be used without the other two, so it makes sense to + * link them all in together. + */ + +/* file descriptor for the password file currently open */ +static int pw_fd = -1; + +void +setpwent(void) +{ + if (pw_fd!=-1) + close(pw_fd); + + pw_fd=open("/etc/passwd", O_RDONLY); +} + +void +endpwent(void) +{ + if (pw_fd!=-1) + close(pw_fd); + pw_fd=-1; +} + +struct passwd * +getpwent(void) +{ + if (pw_fd!=-1) + return __getpwent(pw_fd); + return NULL; +} + + + |