diff options
Diffstat (limited to 'sysdeps/stub_suid/procdata.c')
| -rw-r--r-- | sysdeps/stub_suid/procdata.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/sysdeps/stub_suid/procdata.c b/sysdeps/stub_suid/procdata.c new file mode 100644 index 00000000..1f24d61a --- /dev/null +++ b/sysdeps/stub_suid/procdata.c @@ -0,0 +1,180 @@ +/* $Id$ */ + +/* 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 <config.h> +#include <glibtop/procdata.h> + +#include <sys/stat.h> + +#define LINUX_VERSION(x,y,z) (0x10000*(x) + 0x100*(y) + z) + +#define BIT_SHIFT(x) (1 << (x % 32)) + +static const unsigned long _glibtop_sysdeps_procdata_0 = +BIT_SHIFT(GLIBTOP_PROCDATA_CMD) + +BIT_SHIFT(GLIBTOP_PROCDATA_STATE) + +BIT_SHIFT(GLIBTOP_PROCDATA_UID) + +BIT_SHIFT(GLIBTOP_PROCDATA_PID) + +BIT_SHIFT(GLIBTOP_PROCDATA_PPID) + +BIT_SHIFT(GLIBTOP_PROCDATA_PGRP) + +BIT_SHIFT(GLIBTOP_PROCDATA_SESSION) + +BIT_SHIFT(GLIBTOP_PROCDATA_TTY) + +BIT_SHIFT(GLIBTOP_PROCDATA_TPGID) + +BIT_SHIFT(GLIBTOP_PROCDATA_PRIORITY) + +BIT_SHIFT(GLIBTOP_PROCDATA_NICE) + +BIT_SHIFT(GLIBTOP_PROCDATA_SIGNAL) + +BIT_SHIFT(GLIBTOP_PROCDATA_BLOCKED) + +BIT_SHIFT(GLIBTOP_PROCDATA_SIGIGNORE) + +BIT_SHIFT(GLIBTOP_PROCDATA_SIGCATCH) + +BIT_SHIFT(GLIBTOP_PROCDATA_START_TIME) + +BIT_SHIFT(GLIBTOP_PROCDATA_UTIME) + +BIT_SHIFT(GLIBTOP_PROCDATA_STIME) + +BIT_SHIFT(GLIBTOP_PROCDATA_CUTIME) + +BIT_SHIFT(GLIBTOP_PROCDATA_CSTIME) + +BIT_SHIFT(GLIBTOP_PROCDATA_SIZE) + +BIT_SHIFT(GLIBTOP_PROCDATA_RESIDENT) + +BIT_SHIFT(GLIBTOP_PROCDATA_SHARE) + +BIT_SHIFT(GLIBTOP_PROCDATA_TRS) + +BIT_SHIFT(GLIBTOP_PROCDATA_LRS) + +BIT_SHIFT(GLIBTOP_PROCDATA_DRS) + +BIT_SHIFT(GLIBTOP_PROCDATA_DT) + +BIT_SHIFT(GLIBTOP_PROCDATA_VSIZE) + +BIT_SHIFT(GLIBTOP_PROCDATA_RSS) + +BIT_SHIFT(GLIBTOP_PROCDATA_RSS_RLIM) + +BIT_SHIFT(GLIBTOP_PROCDATA_TIMEOUT) + +BIT_SHIFT(GLIBTOP_PROCDATA_IT_REAL_VALUE); + +static const unsigned long _glibtop_sysdeps_procdata_1 = +BIT_SHIFT(GLIBTOP_PROCDATA_K_FLAGS) + +BIT_SHIFT(GLIBTOP_PROCDATA_MIN_FLT) + +BIT_SHIFT(GLIBTOP_PROCDATA_MAJ_FLT) + +BIT_SHIFT(GLIBTOP_PROCDATA_CMIN_FLT) + +BIT_SHIFT(GLIBTOP_PROCDATA_CMAJ_FLT) + +BIT_SHIFT(GLIBTOP_PROCDATA_START_CODE) + +BIT_SHIFT(GLIBTOP_PROCDATA_END_CODE) + +BIT_SHIFT(GLIBTOP_PROCDATA_START_STACK) + +BIT_SHIFT(GLIBTOP_PROCDATA_KSTK_ESP) + +BIT_SHIFT(GLIBTOP_PROCDATA_KSTK_EIP) + +BIT_SHIFT(GLIBTOP_PROCDATA_WCHAN); + +/* Provides detailed information about a process. */ + +void +glibtop_get_procdata_s (glibtop *server, glibtop_procdata *buf, pid_t pid) +{ + char input [BUFSIZ], *tmp; + struct stat statb; + int nread; + FILE *f; + + glibtop_init_r (&server, 0, 0); + + memset (buf, 0, sizeof (glibtop_procdata)); + + if (pid == 0) { + /* Client is only interested in the flags. */ + buf->flags [0] = _glibtop_sysdeps_procdata_0; + buf->flags [1] = _glibtop_sysdeps_procdata_1; + return; + } + + + sprintf (input, "/proc/%d/stat", pid); + + if (stat (input, &statb)) return; + + buf->uid = statb.st_uid; + + f = fopen (input, "r"); + if (!f) return; + + nread = fread (input, 1, BUFSIZ, f); + + if (nread < 0) { + fclose (f); + return; + } + + input [nread] = 0; + + /* This is from guile-utils/gtop/proc/readproc.c */ + + /* split into "PID (cmd" and "<rest>" */ + tmp = strrchr (input, ')'); + *tmp = '\0'; /* replace trailing ')' with NUL */ + /* parse these two strings separately, skipping the leading "(". */ + memset (buf->cmd, 0, sizeof (buf->cmd)); + sscanf (input, "%d (%39c", &buf->pid, buf->cmd); + sscanf(tmp + 2, /* skip space after ')' too */ + "%c %d %d %d %d %d %lu %lu %lu %lu %lu " + "%ld %ld %ld %ld %d %d %lu %lu %ld %lu " + "%lu %lu %lu %lu %lu %lu %lu %d %d %d %d %lu", + &buf->state, &buf->ppid, &buf->pgrp, &buf->session, + &buf->tty, &buf->tpgid, &buf->k_flags, &buf->min_flt, + &buf->cmin_flt, &buf->maj_flt, &buf->cmaj_flt, + &buf->utime, &buf->stime, &buf->cutime, &buf->cstime, + &buf->priority, &buf->nice, &buf->timeout, + &buf->it_real_value, &buf->start_time, &buf->vsize, + &buf->rss, &buf->rss_rlim, &buf->start_code, + &buf->end_code, &buf->start_stack, &buf->kstk_esp, + &buf->kstk_eip, &buf->signal, &buf->blocked, + &buf->sigignore, &buf->sigcatch, &buf->wchan); + + if (buf->tty == 0) + /* the old notty val, update elsewhere bef. moving to 0 */ + buf->tty = -1; + + if (server->os_version_code < LINUX_VERSION(1,3,39)) { + /* map old meanings to new */ + buf->priority = 2*15 - buf->priority; + buf->nice = 15 - buf->nice; + } + if (server->os_version_code < LINUX_VERSION(1,1,30) && buf->tty != -1) + /* when tty wasn't full devno */ + buf->tty = 4*0x100 + buf->tty; + + fclose (f); + + sprintf (input, "/proc/%d/statm", pid); + + f = fopen (input, "r"); + if (!f) return; + + nread = fread (input, 1, BUFSIZ, f); + + if (nread < 0) { + fclose (f); + return; + } + + input [nread] = 0; + + sscanf (input, "%ld %ld %ld %ld %ld %ld %ld", + &buf->size, &buf->resident, &buf->share, + &buf->trs, &buf->lrs, &buf->drs, &buf->dt); + + fclose (f); + + buf->flags [0] = _glibtop_sysdeps_procdata_0; + buf->flags [1] = _glibtop_sysdeps_procdata_1; +} |