diff options
Diffstat (limited to 'sysdeps/aix/open.c')
-rw-r--r-- | sysdeps/aix/open.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/aix/open.c b/sysdeps/aix/open.c new file mode 100644 index 00000000..8a0757fa --- /dev/null +++ b/sysdeps/aix/open.c @@ -0,0 +1,82 @@ +/* $Id$ */ + +/* Copyright (C) 1998-99 Martin Baulig + This file is part of LibGTop 1.0. + + Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998. + + LibGTop is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + LibGTop 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 General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with LibGTop; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#include <fcntl.h> +#include <unistd.h> +#include <glibtop.h> +#include <glibtop/error.h> +#include <glibtop/open.h> + +#include "glibtop_suid.h" + +/* !!! THIS FUNCTION RUNS SUID ROOT - CHANGE WITH CAUTION !!! */ + +void +glibtop_init_p (glibtop *server, const unsigned long features, + const unsigned flags) +{ + glibtop_init_func_t *init_fkt; + + if (server == NULL) + glibtop_error_r (NULL, "glibtop_init_p (server == NULL)"); + + if ((server->flags & _GLIBTOP_INIT_STATE_SYSDEPS) == 0) { + glibtop_open_p (server, "glibtop", features, flags); + + for (init_fkt = _glibtop_init_hook_p; *init_fkt; init_fkt++) + (*init_fkt) (server); + server->flags |= _GLIBTOP_INIT_STATE_SYSDEPS; + } +} + +/* Opens pipe to gtop server. Returns 0 on success and -1 on error. */ + +void +glibtop_open_p (glibtop *server, const char *program_name, + const unsigned long features, const unsigned flags) +{ + /* !!! WE ARE ROOT HERE - CHANGE WITH CAUTION !!! */ + + server->machine.uid = getuid (); + server->machine.euid = geteuid (); + server->machine.gid = getgid (); + server->machine.egid = getegid (); + + /* open kmem */ + + server->machine.kmem_fd = open("/dev/kmem", O_RDONLY); + if (server->machine.kmem_fd == -1) + glibtop_error_io_r (server, "Cannot open /dev/kmem"); + + /* Drop priviledges. */ + + if (seteuid (server->machine.uid)) + _exit (1); + + if (setegid (server->machine.gid)) + _exit (1); + + /* !!! END OF SUID ROOT PART !!! */ + + server->name = program_name; +} |