a5dd7e9063
It changes the return values of all sysdeps functions which were previosly returning void to int. This is the first step to implement better error handling in LibGTop. Martin 1999-10-24 Martin Baulig <martin@home-of-linux.org> * include/glibtop/*.h (glibtop_get_*, glibtop_init*): Changed the return value of all `glibtop_get_<feature>_* ()' and all `glibtop_init_<feature>_* ()' functions from void to int. * features.def: Reflect changes of the return values. * sysdeps/*/*.c: Reflect changes of the return values.
133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <glibtop.h>
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#include <glibtop/procuid.h>
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#include <glibtop_suid.h>
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#include <sys/table.h>
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#include <sys/resource.h>
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#include <mach.h>
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#include <mach/mach_types.h>
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#include <mach/task_info.h>
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/* Provides detailed information about a process. */
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static const unsigned long _glibtop_sysdeps_proc_uid =
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(1L << GLIBTOP_PROC_UID_UID) + (1L << GLIBTOP_PROC_UID_EUID) +
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(1L << GLIBTOP_PROC_UID_GID) + (1L << GLIBTOP_PROC_UID_EGID) +
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(1L << GLIBTOP_PROC_UID_PID) + (1L << GLIBTOP_PROC_UID_PPID) +
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(1L << GLIBTOP_PROC_UID_PGRP) + (1L << GLIBTOP_PROC_UID_SESSION) +
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(1L << GLIBTOP_PROC_UID_TTY) + (1L << GLIBTOP_PROC_UID_TPGID);
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/* Init function. */
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int
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glibtop_init_proc_uid_p (glibtop *server)
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{
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server->sysdeps.proc_uid = _glibtop_sysdeps_proc_uid;
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}
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int
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glibtop_get_proc_uid_p (glibtop *server, glibtop_proc_uid *buf,
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pid_t pid)
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{
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struct tbl_procinfo procinfo;
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task_basic_info_data_t taskinfo;
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int ret, info_count;
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task_t thistask;
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glibtop_init_p (server, GLIBTOP_SYSDEPS_PROC_UID, 0);
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memset (buf, 0, sizeof (glibtop_proc_uid));
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/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
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glibtop_suid_enter (server);
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ret = table (TBL_PROCINFO, pid, (char *) &procinfo, 1,
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sizeof (struct tbl_procinfo));
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glibtop_suid_leave (server);
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/* !!! END OF SUID ROOT PART !!! */
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if (ret != 1) return;
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buf->uid = procinfo.pi_ruid;
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buf->euid = procinfo.pi_svuid;
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buf->gid = procinfo.pi_rgid;
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buf->egid = procinfo.pi_svgid;
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buf->pid = procinfo.pi_pid;
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buf->ppid = procinfo.pi_ppid;
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buf->pgrp = procinfo.pi_pgrp;
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buf->tty = procinfo.pi_ttyd;
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buf->session = procinfo.pi_session;
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buf->tpgid = procinfo.pi_tpgrp;
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buf->flags = _glibtop_sysdeps_proc_uid;
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/* !!! THE FOLLOWING CODE RUNS SUID ROOT - CHANGE WITH CAUTION !!! */
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glibtop_suid_enter (server);
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/* Get task structure. */
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ret = task_by_unix_pid (task_self(), procinfo.pi_pid, &thistask);
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if (ret == KERN_SUCCESS) {
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/* Get taskinfo about this task. */
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info_count = TASK_BASIC_INFO_COUNT;
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ret = task_info (thistask, TASK_BASIC_INFO,
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(task_info_t) &taskinfo, &info_count);
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/* `ret' is evaluated outside the `if' clause. */
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}
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glibtop_suid_leave (server);
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/* !!! END OF SUID ROOT PART !!! */
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if (ret != KERN_SUCCESS) return;
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buf->priority = taskinfo.base_priority;
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buf->flags += (1L << GLIBTOP_PROC_UID_PRIORITY);
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errno = 0;
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ret = getpriority (PRIO_PROCESS, pid);
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if ((ret == -1) && (errno != 0)) return;
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buf->nice = ret;
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buf->flags += (1L << GLIBTOP_PROC_UID_NICE);
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}
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