mirror of https://github.com/BOINC/boinc.git
800 lines
23 KiB
C
800 lines
23 KiB
C
// Berkeley Open Infrastructure for Network Computing
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// http://boinc.berkeley.edu
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// Copyright (C) 2005 University of California
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//
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// This is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation;
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// either version 2.1 of the License, or (at your option) any later version.
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//
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// This software is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// To view the GNU Lesser General Public License visit
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// http://www.gnu.org/copyleft/lesser.html
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// or write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// initialization and starting of applications
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#include "cpp.h"
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#ifdef _WIN32
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#include "boinc_win.h"
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#else
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#include "config.h"
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#if HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#if HAVE_SYS_RESOURCE_H
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#include <sys/resource.h>
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#endif
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#if HAVE_SYS_IPC_H
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#include <sys/ipc.h>
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#endif
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#if HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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#include <unistd.h>
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#include <cerrno>
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#endif
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#ifdef __EMX__
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#include <process.h>
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#endif
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#if (defined(__APPLE__) && defined(__i386__))
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#include <mach-o/loader.h>
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#include <mach-o/fat.h>
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#include <mach/machine.h>
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#include <libkern/OSByteOrder.h>
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#endif
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using std::vector;
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#include "filesys.h"
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#include "error_numbers.h"
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#include "util.h"
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#include "str_util.h"
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#include "shmem.h"
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#include "client_msgs.h"
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#include "client_state.h"
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#include "file_names.h"
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#include "app.h"
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// Goes through an array of strings, and prints each string
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//
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#ifndef _WIN32
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static void debug_print_argv(char** argv) {
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int i;
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msg_printf(0, MSG_INFO, "[task_debug] Arguments:");
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for (i=0; argv[i]; i++) {
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msg_printf(0, MSG_INFO,
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"[task_debug] argv[%d]: %s\n", i, argv[i]
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);
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}
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}
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#endif
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// create a file (new_link) which contains an XML
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// reference to existing file.
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//
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static int make_link(const char *existing, const char *new_link) {
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FILE *fp;
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fp = boinc_fopen(new_link, "w");
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if (!fp) return ERR_FOPEN;
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fprintf(fp, "<soft_link>%s</soft_link>\n", existing);
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fclose(fp);
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if (g_use_sandbox)
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return set_to_project_group(new_link);
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else
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return 0;
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}
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int ACTIVE_TASK::link_user_files() {
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PROJECT* project = wup->project;
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unsigned int i;
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FILE_REF fref;
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FILE_INFO* fip;
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char link_path[1024], buf[256], file_path[1024];
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int retval;
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for (i=0; i<project->user_files.size(); i++) {
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fref = project->user_files[i];
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fip = fref.file_info;
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if (fip->status != FILE_PRESENT) continue;
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get_pathname(fip, file_path, sizeof(file_path));
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sprintf(link_path, "%s/%s", slot_dir, strlen(fref.open_name)?fref.open_name:fip->name);
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sprintf(buf, "../../%s", file_path);
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retval = make_link(buf, link_path);
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if (retval) return retval;
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}
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return 0;
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}
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// make a unique key for core/app shared memory segment
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//
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int ACTIVE_TASK::get_shmem_seg_name() {
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#ifdef _WIN32
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int i = 0;
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char szSharedMemoryName[256];
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HANDLE hSharedMemoryHandle = 0;
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for (i=0; i<1024; i++) {
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sprintf(szSharedMemoryName, "%sboinc_%d", SHM_PREFIX, i);
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hSharedMemoryHandle = create_shmem(szSharedMemoryName, 1024, NULL, true);
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if (hSharedMemoryHandle) break;
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}
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if (!hSharedMemoryHandle) {
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return ERR_SHMGET;
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}
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detach_shmem(hSharedMemoryHandle, NULL);
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sprintf(szSharedMemoryName, "boinc_%d", i);
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strcpy(shmem_seg_name, szSharedMemoryName);
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#else
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char init_data_path[256];
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sprintf(init_data_path, "%s/%s", slot_dir, INIT_DATA_FILE);
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// ftok() only works if there's a file at the given location
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//
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FILE* f = boinc_fopen(init_data_path, "w");
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if (f) fclose(f);
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shmem_seg_name = ftok(init_data_path, 1);
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if (shmem_seg_name == -1) return ERR_SHMEM_NAME;
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#endif
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return 0;
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}
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// write the app init file.
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// This is done before starting the app,
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// and when project prefs have changed during app execution
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//
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int ACTIVE_TASK::write_app_init_file() {
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APP_INIT_DATA aid;
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FILE *f;
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char init_data_path[256], project_dir[256], project_path[256];
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int retval;
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memset(&aid, 0, sizeof(aid));
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aid.major_version = BOINC_MAJOR_VERSION;
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aid.minor_version = BOINC_MINOR_VERSION;
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aid.release = BOINC_RELEASE;
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aid.app_version = app_version->version_num;
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safe_strcpy(aid.app_name, wup->app->name);
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safe_strcpy(aid.symstore, wup->project->symstore);
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safe_strcpy(aid.acct_mgr_url, gstate.acct_mgr_info.acct_mgr_url);
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safe_strcpy(aid.user_name, wup->project->user_name);
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safe_strcpy(aid.team_name, wup->project->team_name);
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if (wup->project->project_specific_prefs.length()) {
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aid.project_preferences = strdup(wup->project->project_specific_prefs.c_str());
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}
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get_project_dir(wup->project, project_dir, sizeof(project_dir));
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relative_to_absolute(project_dir, project_path);
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strcpy(aid.project_dir, project_path);
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relative_to_absolute("", aid.boinc_dir);
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strcpy(aid.authenticator, wup->project->authenticator);
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aid.slot = slot;
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strcpy(aid.wu_name, wup->name);
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aid.user_total_credit = wup->project->user_total_credit;
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aid.user_expavg_credit = wup->project->user_expavg_credit;
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aid.host_total_credit = wup->project->host_total_credit;
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aid.host_expavg_credit = wup->project->host_expavg_credit;
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double rrs = gstate.runnable_resource_share();
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if (rrs) {
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aid.resource_share_fraction = wup->project->resource_share/rrs;
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} else {
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aid.resource_share_fraction = 1;
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}
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aid.rsc_fpops_est = wup->rsc_fpops_est;
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aid.rsc_fpops_bound = wup->rsc_fpops_bound;
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aid.rsc_memory_bound = wup->rsc_memory_bound;
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aid.rsc_disk_bound = wup->rsc_disk_bound;
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aid.checkpoint_period = gstate.global_prefs.disk_interval;
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aid.fraction_done_update_period = DEFAULT_FRACTION_DONE_UPDATE_PERIOD;
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aid.fraction_done_start = 0;
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aid.fraction_done_end = 1;
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#ifdef _WIN32
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strcpy(aid.shmem_seg_name, shmem_seg_name);
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#else
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aid.shmem_seg_name = shmem_seg_name;
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#endif
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// wu_cpu_time is the CPU time at start of session,
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// not the checkpoint CPU time
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// At the start of an episode these are equal, but not in the middle!
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//
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aid.wu_cpu_time = episode_start_cpu_time;
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sprintf(init_data_path, "%s/%s", slot_dir, INIT_DATA_FILE);
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f = boinc_fopen(init_data_path, "w");
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if (!f) {
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msg_printf(wup->project, MSG_INTERNAL_ERROR,
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"Failed to open init file %s",
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init_data_path
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);
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return ERR_FOPEN;
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}
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aid.host_info = gstate.host_info;
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aid.global_prefs = gstate.global_prefs;
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aid.proxy_info = gstate.proxy_info;
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retval = write_init_data_file(f, aid);
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fclose(f);
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return retval;
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}
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// set up a 'symbolic link' in the slot dir to the given file
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// (or copy the file to slot dir)
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//
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static int setup_file(
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WORKUNIT* wup, FILE_INFO* fip, FILE_REF& fref,
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char* file_path, char* slot_dir, bool input
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) {
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char link_path[256], buf[256];
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int retval;
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sprintf(link_path,
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"%s/%s",
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slot_dir, strlen(fref.open_name)?fref.open_name:fip->name
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);
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sprintf(buf, "../../%s", file_path );
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if (fref.copy_file) {
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if (input) {
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retval = boinc_copy(file_path, link_path);
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if (retval) {
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msg_printf(wup->project, MSG_INTERNAL_ERROR,
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"Can't copy %s to %s", file_path, link_path
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);
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return retval;
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}
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}
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return 0;
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}
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// if anonymous platform, link may already be there
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//
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if (input && wup->project->anonymous_platform && boinc_file_exists(link_path)) {
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return 0;
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}
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retval = make_link(buf, link_path);
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if (retval) {
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msg_printf(wup->project, MSG_INTERNAL_ERROR,
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"Can't link %s to %s", file_path, link_path
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);
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return retval;
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}
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return 0;
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}
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int ACTIVE_TASK::copy_output_files() {
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char slotfile[256], projfile[256];
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unsigned int i;
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for (i=0; i<result->output_files.size(); i++) {
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FILE_REF& fref = result->output_files[i];
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if (!fref.copy_file) continue;
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FILE_INFO* fip = fref.file_info;
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sprintf(slotfile, "%s/%s", slot_dir, fref.open_name);
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get_pathname(fip, projfile, sizeof(projfile));
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int retval = boinc_rename(slotfile, projfile);
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if (retval) {
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msg_printf(wup->project, MSG_INTERNAL_ERROR,
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"Can't rename output file %s", fip->name
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);
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}
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}
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return 0;
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}
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// Start a task in a slot directory.
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// This includes setting up soft links,
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// passing preferences, and starting the process
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//
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// Current dir is top-level BOINC dir
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//
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// postcondition:
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// If any error occurs
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// ACTIVE_TASK::task_state is PROCESS_COULDNT_START
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// report_result_error() is called
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// else
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// ACTIVE_TASK::task_state is PROCESS_EXECUTING
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//
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int ACTIVE_TASK::start(bool first_time) {
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char exec_name[256], file_path[256], buf[256], exec_path[256];
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unsigned int i;
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FILE_REF fref;
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FILE_INFO* fip;
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int retval;
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#ifdef _WIN32
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std::string cmd_line;
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#endif
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if (first_time && log_flags.task) {
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msg_printf(result->project, MSG_INFO,
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"Starting %s", result->name
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);
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}
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if (log_flags.cpu_sched) {
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msg_printf(result->project, MSG_INFO,
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"[cpu_sched] Starting %s%s", result->name, first_time?" (initial)":"(resume)"
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);
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}
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if (wup->project->verify_files_on_app_start) {
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retval = gstate.input_files_available(result, true);
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if (retval) {
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strcpy(buf, "Input file missing or invalid");
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goto error;
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}
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}
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if (first_time) {
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checkpoint_cpu_time = 0;
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checkpoint_wall_time = gstate.now;
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}
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current_cpu_time = checkpoint_cpu_time;
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episode_start_cpu_time = checkpoint_cpu_time;
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debt_interval_start_cpu_time = checkpoint_cpu_time;
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graphics_request_queue.init(result->name); // reset message queues
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process_control_queue.init(result->name);
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if (!app_client_shm.shm) {
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retval = get_shmem_seg_name();
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if (retval) {
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sprintf(buf,
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"Can't get shared memory segment name: %s",
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boincerror(retval)
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);
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goto error;
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}
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}
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// this must go AFTER creating shmem name,
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// since the shmem name is part of the file
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//
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retval = write_app_init_file();
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if (retval) {
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strcpy(buf, "Can't write init file");
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goto error;
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}
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// set up applications files
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//
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strcpy(exec_name, "");
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for (i=0; i<app_version->app_files.size(); i++) {
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fref = app_version->app_files[i];
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fip = fref.file_info;
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get_pathname(fip, file_path, sizeof(file_path));
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if (fref.main_program) {
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if (is_image_file(fip->name)) {
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sprintf(buf, "Main program %s is an image file", fip->name);
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retval = ERR_NO_SIGNATURE;
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goto error;
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}
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if (!fip->executable && !wup->project->anonymous_platform) {
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sprintf(buf, "Main program %s is not executable", fip->name);
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retval = ERR_NO_SIGNATURE;
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goto error;
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}
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safe_strcpy(exec_name, fip->name);
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safe_strcpy(exec_path, file_path);
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}
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// anonymous platform may use different files than
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// when the result was started
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//
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if (first_time || wup->project->anonymous_platform) {
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retval = setup_file(wup, fip, fref, file_path, slot_dir, true);
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if (retval) {
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strcpy(buf, "Can't link input file");
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goto error;
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}
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}
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}
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if (!strlen(exec_name)) {
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strcpy(buf, "No main program specified");
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retval = ERR_NOT_FOUND;
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goto error;
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}
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// set up input, output files
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//
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if (first_time) {
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for (i=0; i<wup->input_files.size(); i++) {
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fref = wup->input_files[i];
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fip = fref.file_info;
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get_pathname(fref.file_info, file_path, sizeof(file_path));
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retval = setup_file(wup, fip, fref, file_path, slot_dir, true);
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if (retval) {
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strcpy(buf, "Can't link input file");
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goto error;
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}
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}
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for (i=0; i<result->output_files.size(); i++) {
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fref = result->output_files[i];
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if (fref.copy_file) continue;
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fip = fref.file_info;
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get_pathname(fref.file_info, file_path, sizeof(file_path));
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retval = setup_file(wup, fip, fref, file_path, slot_dir, false);
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if (retval) {
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strcpy(buf, "Can't link output file");
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goto error;
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}
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}
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}
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link_user_files();
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if (gstate.exit_before_start) {
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exit(0);
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}
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#ifdef _WIN32
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PROCESS_INFORMATION process_info;
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STARTUPINFO startup_info;
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char slotdirpath[256];
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char error_msg[1024];
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memset(&process_info, 0, sizeof(process_info));
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memset(&startup_info, 0, sizeof(startup_info));
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startup_info.cb = sizeof(startup_info);
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startup_info.dwFlags=STARTF_FORCEOFFFEEDBACK;
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// suppress 2-sec rotating hourglass cursor on startup
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//startup_info.cb = sizeof(startup_info);
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//startup_info.dwFlags = STARTF_USESHOWWINDOW;
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//startup_info.wShowWindow = SW_HIDE;
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// create core/app share mem segment if needed
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//
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if (!app_client_shm.shm) {
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sprintf(buf, "%s%s", SHM_PREFIX, shmem_seg_name);
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shm_handle = create_shmem(buf, sizeof(SHARED_MEM),
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(void **)&app_client_shm.shm, false
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);
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if (shm_handle == NULL) {
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strcpy(buf, "Can't create shared memory");
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retval = ERR_SHMGET;
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goto error;
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}
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}
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app_client_shm.reset_msgs();
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// NOTE: in Windows, stderr is redirected in boinc_init_diagnostics();
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cmd_line = exec_path + std::string(" ") + wup->command_line;
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relative_to_absolute(slot_dir, slotdirpath);
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bool success = false;
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for (i=0; i<5; i++) {
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if (CreateProcess(exec_path,
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(LPSTR)cmd_line.c_str(),
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NULL,
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NULL,
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FALSE,
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CREATE_NEW_PROCESS_GROUP|CREATE_NO_WINDOW|IDLE_PRIORITY_CLASS,
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NULL,
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slotdirpath,
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&startup_info,
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&process_info
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)) {
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success = true;
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break;
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}
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windows_error_string(error_msg, sizeof(error_msg));
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msg_printf(wup->project, MSG_INTERNAL_ERROR,
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"Process creation failed: %s", error_msg
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);
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boinc_sleep(drand());
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}
|
|
if (!success) {
|
|
sprintf(buf, "CreateProcess() failed - %s", error_msg);
|
|
retval = ERR_EXEC;
|
|
goto error;
|
|
}
|
|
pid = process_info.dwProcessId;
|
|
pid_handle = process_info.hProcess;
|
|
thread_handle = process_info.hThread;
|
|
|
|
#elif defined(__EMX__)
|
|
|
|
char* argv[100];
|
|
char current_dir[_MAX_PATH];
|
|
|
|
// Set up core/app shared memory seg if needed
|
|
//
|
|
if (!app_client_shm.shm) {
|
|
retval = create_shmem(
|
|
shmem_seg_name, sizeof(SHARED_MEM), (void**)&app_client_shm.shm
|
|
);
|
|
if (retval) {
|
|
sprintf(buf, "Can't create shared memory: %s", boincerror(retval));
|
|
goto error;
|
|
}
|
|
}
|
|
app_client_shm.reset_msgs();
|
|
|
|
// save current dir
|
|
getcwd( current_dir, sizeof(current_dir));
|
|
|
|
// chdir() into the slot directory
|
|
//
|
|
retval = chdir(slot_dir);
|
|
if (retval) {
|
|
sprintf(buf, "Can't change directory: %s", slot_dir, boincerror(retval));
|
|
goto error;
|
|
}
|
|
|
|
// hook up stderr to a specially-named file
|
|
//
|
|
//freopen(STDERR_FILE, "a", stderr);
|
|
|
|
argv[0] = exec_name;
|
|
char cmdline[8192];
|
|
strcpy(cmdline, wup->command_line.c_str());
|
|
parse_command_line(cmdline, argv+1);
|
|
if (log_flags.task_debug) {
|
|
debug_print_argv(argv);
|
|
}
|
|
sprintf(buf, "../../%s", exec_path );
|
|
pid = spawnv(P_NOWAIT, buf, argv);
|
|
if (pid == -1) {
|
|
sprintf(buf, "Process creation failed: %s\n", buf, boincerror(retval));
|
|
chdir(current_dir);
|
|
retval = ERR_EXEC;
|
|
goto error;
|
|
}
|
|
|
|
// restore current dir
|
|
chdir(current_dir);
|
|
|
|
if (log_flags.task_debug) {
|
|
msg_printf(0, MSG_INFO,
|
|
"[task_debug] ACTIVE_TASK::start(): forked process: pid %d\n", pid
|
|
);
|
|
}
|
|
|
|
// set idle process priority
|
|
if (setpriority(PRIO_PROCESS, pid, PROCESS_IDLE_PRIORITY)) {
|
|
perror("setpriority");
|
|
}
|
|
|
|
#else
|
|
// Unix/Linux/Mac case
|
|
|
|
char* argv[100];
|
|
|
|
// Set up core/app shared memory seg if needed
|
|
//
|
|
if (!app_client_shm.shm) {
|
|
retval = create_shmem(
|
|
shmem_seg_name, sizeof(SHARED_MEM), gstate.boinc_project_gid,
|
|
(void**)&app_client_shm.shm
|
|
);
|
|
if (retval) {
|
|
sprintf(buf, "Can't create shared memory: %s", boincerror(retval));
|
|
goto error;
|
|
}
|
|
}
|
|
app_client_shm.reset_msgs();
|
|
|
|
#if (defined(__APPLE__) && defined(__i386__))
|
|
// PowerPC apps emulated on i386 Macs crash if running graphics
|
|
powerpc_emulated_on_i386 = ! is_native_i386_app(exec_path);
|
|
#endif
|
|
|
|
pid = fork();
|
|
if (pid == -1) {
|
|
sprintf(buf, "fork() failed: %s", strerror(errno));
|
|
retval = ERR_FORK;
|
|
goto error;
|
|
}
|
|
if (pid == 0) {
|
|
// from here on we're running in a new process.
|
|
// If an error happens,
|
|
// exit nonzero so that the core client knows there was a problem.
|
|
|
|
// add project dir to library path
|
|
//
|
|
char libpath[8192];
|
|
get_project_dir(wup->project, buf, sizeof(buf));
|
|
sprintf(libpath, "%s:%s", getenv("LD_LIBRARY_PATH"), buf);
|
|
setenv("LD_LIBRARY_PATH", libpath, 1);
|
|
|
|
retval = chdir(slot_dir);
|
|
if (retval) {
|
|
perror("chdir");
|
|
fflush(NULL);
|
|
_exit(errno);
|
|
}
|
|
|
|
#if 0
|
|
// set stack size limit to the max.
|
|
// Some BOINC apps have reported problems with exceeding
|
|
// small stack limits (e.g. 8 MB)
|
|
// and it seems like the best thing to raise it as high as possible
|
|
//
|
|
struct rlimit rlim;
|
|
#define MIN_STACK_LIMIT 64000000
|
|
getrlimit(RLIMIT_STACK, &rlim);
|
|
if (rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur <= MIN_STACK_LIMIT) {
|
|
if (rlim.rlim_max == RLIM_INFINITY || rlim.rlim_max > MIN_STACK_LIMIT) {
|
|
rlim.rlim_cur = MIN_STACK_LIMIT;
|
|
} else {
|
|
rlim.rlim_cur = rlim.rlim_max;
|
|
}
|
|
setrlimit(RLIMIT_STACK, &rlim);
|
|
}
|
|
#endif
|
|
|
|
// hook up stderr to a specially-named file
|
|
//
|
|
freopen(STDERR_FILE, "a", stderr);
|
|
|
|
// set idle process priority
|
|
#ifdef HAVE_SETPRIORITY
|
|
if (setpriority(PRIO_PROCESS, 0, PROCESS_IDLE_PRIORITY)) {
|
|
perror("setpriority");
|
|
}
|
|
#endif
|
|
char cmdline[8192];
|
|
strcpy(cmdline, wup->command_line.c_str());
|
|
sprintf(buf, "../../%s", exec_path );
|
|
if (g_use_sandbox) {
|
|
char switcher_path[100];
|
|
sprintf(switcher_path, "../../%s/%s", SWITCHER_DIR, SWITCHER_FILE_NAME);
|
|
argv[0] = SWITCHER_FILE_NAME;
|
|
argv[1] = buf;
|
|
argv[2] = exec_name;
|
|
parse_command_line(cmdline, argv+3);
|
|
if (log_flags.task_debug) {
|
|
debug_print_argv(argv);
|
|
}
|
|
retval = execv(switcher_path, argv);
|
|
} else {
|
|
argv[0] = exec_name;
|
|
parse_command_line(cmdline, argv+1);
|
|
retval = execv(buf, argv);
|
|
}
|
|
msg_printf(wup->project, MSG_INTERNAL_ERROR,
|
|
"Process creation (%s) failed: %s, errno=%d\n", buf, boincerror(retval), errno
|
|
);
|
|
perror("execv");
|
|
fflush(NULL);
|
|
_exit(errno);
|
|
}
|
|
|
|
if (log_flags.task_debug) {
|
|
msg_printf(0, MSG_INFO,
|
|
"[task_debug] ACTIVE_TASK::start(): forked process: pid %d\n", pid
|
|
);
|
|
}
|
|
|
|
#endif
|
|
set_task_state(PROCESS_EXECUTING, "start");
|
|
return 0;
|
|
|
|
// go here on error; "buf" contains error message, "retval" is nonzero
|
|
//
|
|
error:
|
|
// if something failed, it's possible that the executable was munged.
|
|
// Verify it to trigger another download.
|
|
//
|
|
gstate.input_files_available(result, true);
|
|
gstate.report_result_error(*result, buf);
|
|
set_task_state(PROCESS_COULDNT_START, "start");
|
|
return retval;
|
|
}
|
|
|
|
// Resume the task if it was previously running; otherwise start it
|
|
// Postcondition: "state" is set correctly
|
|
//
|
|
int ACTIVE_TASK::resume_or_start(bool first_time) {
|
|
const char* str = "??";
|
|
int retval;
|
|
|
|
switch (task_state()) {
|
|
case PROCESS_UNINITIALIZED:
|
|
if (first_time) {
|
|
retval = start(true);
|
|
str = "Starting";
|
|
} else {
|
|
retval = start(false);
|
|
str = "Restarting";
|
|
}
|
|
if (retval) {
|
|
set_task_state(PROCESS_COULDNT_START, "resume_or_start1");
|
|
return retval;
|
|
}
|
|
break;
|
|
case PROCESS_SUSPENDED:
|
|
retval = unsuspend();
|
|
if (retval) {
|
|
msg_printf(wup->project, MSG_INTERNAL_ERROR,
|
|
"Couldn't resume task %s", result->name
|
|
);
|
|
set_task_state(PROCESS_COULDNT_START, "resume_or_start2");
|
|
return retval;
|
|
}
|
|
str = "Resuming";
|
|
break;
|
|
default:
|
|
msg_printf(result->project, MSG_INTERNAL_ERROR,
|
|
"Unexpected state %d for task %s", task_state(), result->name
|
|
);
|
|
return 0;
|
|
}
|
|
if (log_flags.task) {
|
|
msg_printf(result->project, MSG_INFO,
|
|
"%s task %s using %s version %d",
|
|
str,
|
|
result->name,
|
|
app_version->app->name,
|
|
app_version->version_num
|
|
);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if (defined(__APPLE__) && defined(__i386__))
|
|
|
|
union headeru {
|
|
fat_header fat;
|
|
mach_header mach;
|
|
};
|
|
|
|
// Read the mach-o headers to determine the architectures supported by executable file.
|
|
// Returns 1 if application can run natively on i386 Macs, else returns 0.
|
|
int ACTIVE_TASK::is_native_i386_app(char* exec_path) {
|
|
FILE *f;
|
|
int result = 0;
|
|
|
|
headeru myHeader;
|
|
fat_arch fatHeader;
|
|
|
|
uint32_t n, i, len;
|
|
|
|
f = boinc_fopen(exec_path, "rb");
|
|
if (!f)
|
|
return result; // Should never happen
|
|
|
|
myHeader.fat.magic = 0;
|
|
myHeader.fat.nfat_arch = 0;
|
|
|
|
fread(&myHeader, 1, sizeof(fat_header), f);
|
|
switch (myHeader.mach.magic) {
|
|
case MH_MAGIC:
|
|
if (myHeader.mach.cputype == CPU_TYPE_I386)
|
|
result = 1; // Single-architecture i386 file
|
|
break;
|
|
case FAT_CIGAM:
|
|
n = _OSSwapInt32(myHeader.fat.nfat_arch); // Multiple architecture (fat) file
|
|
for (i=0; i<n; i++) {
|
|
len = fread(&fatHeader, 1, sizeof(fat_arch), f);
|
|
if (len < sizeof(fat_arch))
|
|
break; // Should never happen
|
|
if (fatHeader.cputype == OSSwapConstInt32(CPU_TYPE_I386)) {
|
|
result = 1;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
fclose (f);
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
const char *BOINC_RCSID_be8bae8cbb = "$Id$";
|