125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/* $OpenBSD: procwd.c,v 1.2 2011/05/23 19:35:56 jasper Exp $ */
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/* Copyright (C) 2007 Joe Marcus Clarke
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This file is part of LibGTop 2.
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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 <config.h>
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#include <glibtop/procwd.h>
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#include <glibtop/error.h>
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#include <glibtop_private.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <sys/param.h>
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#include <string.h>
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static const unsigned long _glibtop_sysdeps_proc_wd =
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(1 << GLIBTOP_PROC_WD_EXE) |
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(1 << GLIBTOP_PROC_WD_ROOT) |
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(1 << GLIBTOP_PROC_WD_NUMBER);
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void
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_glibtop_init_proc_wd_s(glibtop *server)
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{
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server->sysdeps.proc_wd = _glibtop_sysdeps_proc_wd;
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}
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static GPtrArray *
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parse_output(const char *output, glibtop_proc_wd *buf)
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{
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GPtrArray *dirs;
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char **lines;
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gboolean nextwd = FALSE;
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gboolean nextrtd = FALSE;
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gboolean havertd = FALSE;
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guint i;
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guint len;
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dirs = g_ptr_array_sized_new(1);
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lines = g_strsplit(output, "\n", 0);
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len = g_strv_length(lines);
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for (i = 0; i < len && lines[i]; i++) {
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if (strlen(lines[i]) < 2)
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continue;
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if (!strcmp(lines[i], "fcwd")) {
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nextwd = TRUE;
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continue;
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}
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if (!strcmp(lines[i], "frtd")) {
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nextrtd = TRUE;
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continue;
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}
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if (!g_str_has_prefix(lines[i], "n"))
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continue;
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if (nextwd) {
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g_ptr_array_add(dirs, g_strdup(lines[i] + 1));
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nextwd = FALSE;
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}
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if (nextrtd && !havertd) {
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g_strlcpy(buf->root, lines[i] + 1,
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sizeof(buf->root));
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buf->flags |= (1 << GLIBTOP_PROC_WD_ROOT);
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nextrtd = FALSE;
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havertd = TRUE;
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}
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}
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g_strfreev(lines);
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return dirs;
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}
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char**
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glibtop_get_proc_wd_s(glibtop *server, glibtop_proc_wd *buf, pid_t pid)
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{
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char path[MAXPATHLEN];
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char *output;
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memset (buf, 0, sizeof (glibtop_proc_wd));
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g_snprintf(path, sizeof(path), "/proc/%u/file", pid);
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if (safe_readlink(path, buf->exe, sizeof(buf->exe)))
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buf->flags |= (1 << GLIBTOP_PROC_WD_EXE);
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output = execute_lsof(pid);
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if (output != NULL) {
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GPtrArray *dirs;
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dirs = parse_output(output, buf);
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g_free(output);
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buf->number = dirs->len;
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buf->flags |= (1 << GLIBTOP_PROC_WD_NUMBER);
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g_ptr_array_add(dirs, NULL);
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return (char **)g_ptr_array_free(dirs, FALSE);
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}
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return NULL;
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}
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