3529a1b59f
Added darwin port. Patch by Benjamin Reed <ranger@befunk.com>. Closes #481068. Bumped version number to 2.21.1. svn path=/trunk/; revision=2666
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/*
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This file is part of LibGTop 2.0.
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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 <unistd.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procargs.h>
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#include <glibtop_suid.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <limits.h>
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static const unsigned long _glibtop_sysdeps_proc_args =
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(1L << GLIBTOP_PROC_ARGS_SIZE);
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/* Init function. */
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void
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_glibtop_init_proc_args_p (glibtop *server)
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{
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server->sysdeps.proc_args = _glibtop_sysdeps_proc_args;
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}
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/* Provides detailed information about a process. */
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char *
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glibtop_get_proc_args_p (glibtop *server, glibtop_proc_args *buf,
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pid_t pid, unsigned max_len)
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{
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char argbuf[4096];
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char *start, *end, *str;
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size_t bufsize = 4096;
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int mib [3];
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unsigned length;
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char *args;
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int *ip;
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glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_ARGS), 0);
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memset (buf, 0, sizeof (glibtop_proc_args));
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mib [0] = CTL_KERN;
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mib [1] = KERN_PROCARGS;
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mib [2] = pid;
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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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if (sysctl (mib, 3, argbuf, &bufsize, NULL, 0) < 0) {
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glibtop_suid_leave (server);
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return NULL;
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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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end = &argbuf[bufsize];
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ip = (int *)end - 2;
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while (*--ip) {
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if (ip == (int *)argbuf) {
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return NULL;
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}
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}
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start = (char *)(ip + 1);
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while (*--ip) {
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if (ip == (int *)argbuf) {
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return NULL;
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}
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}
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ip++;
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if ((ip[0] & 0xbfff0000) == 0xbfff0000) {
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ip += 2;
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start = (char*)(ip + (strlen ((char*)ip) + 3) / 4);
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while (!*start)
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start++;
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}
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for (str = start + strlen (start); str < end - 1; str++) {
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if (*str == '=') {
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while (*str != '\0' && str > start)
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str--;
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break;
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}
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}
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end = str;
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if (start[0] == '-' || start[0] == '?' || start[0] <= ' ') {
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return NULL;
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}
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length = end - start;
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if (max_len != 0 && length > max_len)
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length = max_len;
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args = g_malloc(length + 1);
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if (args == NULL) {
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glibtop_warn_io_r (server, "malloc(procargs)");
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return NULL;
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}
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memcpy (args, start, length);
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args [length] = '\0';
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buf->size = length;
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buf->flags = _glibtop_sysdeps_proc_args;
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return args;
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}
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