/mandos/release : revision 24.1.92

72

const char *argp_program_version = "plugin-runner 1.0";

73

const char *argp_program_bug_address = "<mandos@fukt.bsnet.se>";

74

75

struct process;

76

77

typedef struct process{

75

struct plugin;

76

77

typedef struct plugin{

78

char *name; /* can be NULL or any plugin name */

79

char **argv;

80

int argc;

81

char **environ;

82

int envc;

83

bool disabled;

84

85

/* Variables used for running processes*/

78

86

pid_t pid;

79

87

int fd;

80

88

char *buffer;

83

91

bool eof;

84

92

volatile bool completed;

85

93

volatile int status;

86

struct process *next;

87

} process;

88

89

typedef struct plugin{

90

char *name; /* can be NULL or any plugin name */

91

char **argv;

92

int argc;

93

char **environ;

94

int envc;

95

bool disabled;

96

94

struct plugin *next;

97

95

} plugin;

98

96

99

static plugin *getplugin(char *name, plugin **plugin_list){

100

for (plugin *p = *plugin_list; p != NULL; p = p->next){

97

static plugin *plugin_list = NULL;

98

99

/* Gets an existing plugin based on name,

100

or if none is found, creates a new one */

101

static plugin *getplugin(char *name){

102

/* Check for exiting plugin with that name */

103

for (plugin *p = plugin_list; p != NULL; p = p->next){

101

104

if ((p->name == name)

102

105

or (p->name and name and (strcmp(p->name, name) == 0))){

103

106

return p;

118

121

119

122

*new_plugin = (plugin) { .name = copy_name,

120

123

.argc = 1,

121

.envc = 0,

122

124

.disabled = false,

123

.next = *plugin_list };

125

.next = plugin_list };

124

126

125

127

new_plugin->argv = malloc(sizeof(char *) * 2);

126

128

if (new_plugin->argv == NULL){

130

132

}

131

133

new_plugin->argv[0] = copy_name;

132

134

new_plugin->argv[1] = NULL;

133

135

134

136

new_plugin->environ = malloc(sizeof(char *));

135

137

if(new_plugin->environ == NULL){

136

138

free(copy_name);

139

141

return NULL;

140

142

}

141

143

new_plugin->environ[0] = NULL;

144

142

145

/* Append the new plugin to the list */

143

*plugin_list = new_plugin;

146

plugin_list = new_plugin;

144

147

return new_plugin;

145

148

}

146

149

176

179

}

177

180

178

181

/* Add to a plugin's environment */

179

static bool add_environment(plugin *p, const char *def){

182

static bool add_environment(plugin *p, const char *def, bool replace){

180

183

if(p == NULL){

181

184

return false;

182

185

}

186

/* namelen = length of name of environment variable */

187

size_t namelen = (size_t)(strchrnul(def, '=') - def);

188

/* Search for this environment variable */

189

for(char **e = p->environ; *e != NULL; e++){

190

if(strncmp(*e, def, namelen + 1) == 0){

191

/* It already exists */

192

if(replace){

193

char *new = realloc(*e, strlen(def) + 1);

194

if(new == NULL){

195

return false;

196

}

197

*e = new;

198

strcpy(*e, def);

199

}

200

return true;

201

}

202

}

183

203

return add_to_char_array(def, &(p->environ), &(p->envc));

184

204

}

185

205

186

187

206

/*

188

207

* Based on the example in the GNU LibC manual chapter 13.13 "File

189

208

* Descriptor Flags".

200

219

return fcntl(fd, F_SETFD, ret | FD_CLOEXEC);

201

220

}

202

221

203

process *process_list = NULL;

204

222

205

223

/* Mark processes as completed when they exit, and save their exit

206

224

status. */

207

225

void handle_sigchld(__attribute__((unused)) int sig){

208

226

while(true){

209

process *proc = process_list;

227

plugin *proc = plugin_list;

210

228

int status;

211

229

pid_t pid = waitpid(-1, &status, WNOHANG);

212

230

if(pid == 0){

220

238

/* No child processes */

221

239

break;

222

240

}

223

241

224

242

/* A child exited, find it in process_list */

225

243

while(proc != NULL and proc->pid != pid){

226

244

proc = proc->next;

234

252

}

235

253

}

236

254

255

/* Prints out a password to stdout */

237

256

bool print_out_password(const char *buffer, size_t length){

238

257

ssize_t ret;

239

258

if(length>0 and buffer[length-1] == '\n'){

249

268

return true;

250

269

}

251

270

252

static void free_plugin_list(plugin *plugin_list){

253

for(plugin *next; plugin_list != NULL; plugin_list = next){

254

next = plugin_list->next;

255

for(char **arg = plugin_list->argv; *arg != NULL; arg++){

256

free(*arg);

257

}

258

free(plugin_list->argv);

259

for(char **env = plugin_list->environ; *env != NULL; env++){

260

free(*env);

261

}

262

free(plugin_list->environ);

263

free(plugin_list);

271

/* Removes and free a plugin from the plugin list */

272

static void free_plugin(plugin *plugin_node){

273

274

for(char **arg = plugin_node->argv; *arg != NULL; arg++){

275

free(*arg);

276

}

277

free(plugin_node->argv);

278

for(char **env = plugin_node->environ; *env != NULL; env++){

279

free(*env);

280

}

281

free(plugin_node->environ);

282

free(plugin_node->buffer);

283

284

/* Removes the plugin from the singly-linked list */

285

if(plugin_node == plugin_list){

286

/* First one - simple */

287

plugin_list = plugin_list->next;

288

} else {

289

/* Second one or later */

290

for(plugin *p = plugin_list; p != NULL; p = p->next){

291

if(p->next == plugin_node){

292

p->next = plugin_node->next;

293

break;

294

}

295

}

296

}

297

298

free(plugin_node);

299

}

300

301

static void free_plugin_list(void){

302

while(plugin_list != NULL){

303

free_plugin(plugin_list);

264

304

}

265

305

}

266

306

304

344

{ .name = "global-options", .key = 'g',

305

345

.arg = "OPTION[,OPTION[,...]]",

306

346

.doc = "Options passed to all plugins" },

307

{ .name = "global-envs", .key = 'e',

347

{ .name = "global-env", .key = 'G',

308

348

.arg = "VAR=value",

309

349

.doc = "Environment variable passed to all plugins" },

310

350

{ .name = "options-for", .key = 'o',

311

351

.arg = "PLUGIN:OPTION[,OPTION[,...]]",

312

352

.doc = "Options passed only to specified plugin" },

313

{ .name = "envs-for", .key = 'f',

353

{ .name = "env-for", .key = 'E',

314

354

.arg = "PLUGIN:ENV=value",

315

355

.doc = "Environment variable passed to specified plugin" },

316

356

{ .name = "disable", .key = 'd',

317

357

.arg = "PLUGIN",

318

358

.doc = "Disable a specific plugin", .group = 1 },

359

{ .name = "enable", .key = 'e',

360

.arg = "PLUGIN",

361

.doc = "Enable a specific plugin", .group = 1 },

319

362

{ .name = "plugin-dir", .key = 128,

320

363

.arg = "DIRECTORY",

321

364

.doc = "Specify a different plugin directory", .group = 2 },

333

376

{ .name = NULL }

334

377

};

335

378

336

error_t parse_opt (int key, char *arg, struct argp_state *state) {

337

/* Get the INPUT argument from `argp_parse', which we know is a

338

pointer to our plugin list pointer. */

339

plugin **plugins = state->input;

379

error_t parse_opt (int key, char *arg, __attribute__((unused))

380

struct argp_state *state) {

340

381

switch (key) {

341

case 'g':

382

case 'g': /* --global-options */

342

383

if (arg != NULL){

343

384

char *p;

344

385

while((p = strsep(&arg, ",")) != NULL){

345

386

if(p[0] == '\0'){

346

387

continue;

347

388

}

348

if(not add_argument(getplugin(NULL, plugins), p)){

389

if(not add_argument(getplugin(NULL), p)){

349

390

perror("add_argument");

350

391

return ARGP_ERR_UNKNOWN;

351

392

}

352

393

}

353

394

}

354

395

break;

355

case 'e':

396

case 'G': /* --global-env */

356

397

if(arg == NULL){

357

398

break;

358

399

}

359

{

360

char *envdef = strdup(arg);

361

if(envdef == NULL){

362

break;

363

}

364

if(not add_environment(getplugin(NULL, plugins), envdef)){

365

perror("add_environment");

366

}

400

if(not add_environment(getplugin(NULL), arg, true)){

401

perror("add_environment");

367

402

}

368

403

break;

369

case 'o':

404

case 'o': /* --options-for */

370

405

if (arg != NULL){

371

406

char *p_name = strsep(&arg, ":");

372

if(p_name[0] == '\0'){

407

if(p_name[0] == '\0' or arg == NULL){

373

408

break;

374

409

}

375

410

char *opt = strsep(&arg, ":");

376

if(opt[0] == '\0'){

411

if(opt[0] == '\0' or opt == NULL){

377

412

break;

378

413

}

379

if(opt != NULL){

380

char *p;

381

while((p = strsep(&opt, ",")) != NULL){

382

if(p[0] == '\0'){

383

continue;

384

}

385

if(not add_argument(getplugin(p_name, plugins), p)){

386

perror("add_argument");

387

return ARGP_ERR_UNKNOWN;

388

}

414

char *p;

415

while((p = strsep(&opt, ",")) != NULL){

416

if(p[0] == '\0'){

417

continue;

418

}

419

if(not add_argument(getplugin(p_name), p)){

420

perror("add_argument");

421

return ARGP_ERR_UNKNOWN;

389

422

}

390

423

}

391

424

}

392

425

break;

393

case 'f':

426

case 'E': /* --env-for */

394

427

if(arg == NULL){

395

428

break;

396

429

}

399

432

if(envdef == NULL){

400

433

break;

401

434

}

402

char *p_name = strndup(arg, (size_t) (envdef-arg));

403

if(p_name == NULL){

404

break;

405

}

406

envdef++;

407

if(not add_environment(getplugin(p_name, plugins), envdef)){

435

*envdef = '\0';

436

if(not add_environment(getplugin(arg), envdef+1, true)){

408

437

perror("add_environment");

409

438

}

410

439

}

411

440

break;

412

case 'd':

441

case 'd': /* --disable */

413

442

if (arg != NULL){

414

plugin *p = getplugin(arg, plugins);

443

plugin *p = getplugin(arg);

415

444

if(p == NULL){

416

445

return ARGP_ERR_UNKNOWN;

417

446

}

418

447

p->disabled = true;

419

448

}

420

449

break;

421

case 128:

450

case 'e': /* --enable */

451

if (arg != NULL){

452

plugin *p = getplugin(arg);

453

if(p == NULL){

454

return ARGP_ERR_UNKNOWN;

455

}

456

p->disabled = false;

457

}

458

break;

459

case 128: /* --plugin-dir */

460

free(plugindir);

422

461

plugindir = strdup(arg);

423

462

if(plugindir == NULL){

424

463

perror("strdup");

425

464

}

426

465

break;

427

case 129:

428

argfile = strdup(arg);

429

if(argfile == NULL){

430

perror("strdup");

431

}

432

break;

433

case 130:

466

case 129: /* --config-file */

467

/* This is already done by parse_opt_config_file() */

468

break;

469

case 130: /* --userid */

434

470

uid = (uid_t)strtol(arg, NULL, 10);

435

471

break;

436

case 131:

472

case 131: /* --groupid */

437

473

gid = (gid_t)strtol(arg, NULL, 10);

438

474

break;

439

case 132:

475

case 132: /* --debug */

440

476

debug = true;

441

477

break;

442

478

case ARGP_KEY_ARG:

450

486

return 0;

451

487

}

452

488

453

plugin *plugin_list = NULL;

489

/* This option parser is the same as parse_opt() above, except it

490

ignores everything but the --config-file option. */

491

error_t parse_opt_config_file (int key, char *arg,

492

__attribute__((unused))

493

struct argp_state *state) {

494

switch (key) {

495

case 'g': /* --global-options */

496

case 'G': /* --global-env */

497

case 'o': /* --options-for */

498

case 'E': /* --env-for */

499

case 'd': /* --disable */

500

case 'e': /* --enable */

501

case 128: /* --plugin-dir */

502

break;

503

case 129: /* --config-file */

504

free(argfile);

505

argfile = strdup(arg);

506

if(argfile == NULL){

507

perror("strdup");

508

}

509

break;

510

case 130: /* --userid */

511

case 131: /* --groupid */

512

case 132: /* --debug */

513

case ARGP_KEY_ARG:

514

case ARGP_KEY_END:

515

break;

516

default:

517

return ARGP_ERR_UNKNOWN;

518

}

519

return 0;

520

}

454

521

455

struct argp argp = { .options = options, .parser = parse_opt,

456

.args_doc = "[+PLUS_SEPARATED_OPTIONS]",

522

struct argp argp = { .options = options,

523

.parser = parse_opt_config_file,

524

.args_doc = "",

457

525

.doc = "Mandos plugin runner -- Run plugins" };

458

526

459

ret = argp_parse (&argp, argc, argv, 0, 0, &plugin_list);

527

/* Parse using the parse_opt_config_file in order to get the custom

528

config file location, if any. */

529

ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);

460

530

if (ret == ARGP_ERR_UNKNOWN){

461

531

fprintf(stderr, "Unknown error while parsing arguments\n");

462

532

exitstatus = EXIT_FAILURE;

463

533

goto fallback;

464

534

}

465

535

536

/* Reset to the normal argument parser */

537

argp.parser = parse_opt;

538

539

/* Open the configfile if available */

466

540

if (argfile == NULL){

467

541

conffp = fopen(AFILE, "r");

468

542

} else {

469

543

conffp = fopen(argfile, "r");

470

}

471

544

}

472

545

if(conffp != NULL){

473

546

char *org_line = NULL;

474

547

char *p, *arg, *new_arg, *line;

486

559

}

487

560

custom_argv[0] = argv[0];

488

561

custom_argv[1] = NULL;

489

562

563

/* for each line in the config file, strip whitespace and ignore

564

commented text */

490

565

while(true){

491

566

sret = getline(&org_line, &size, conffp);

492

567

if(sret == -1){

521

596

}

522

597

}

523

598

free(org_line);

524

} else{

599

} else {

525

600

/* Check for harmful errors and go to fallback. Other errors might

526

601

not affect opening plugins */

527

602

if (errno == EMFILE or errno == ENFILE or errno == ENOMEM){

530

605

goto fallback;

531

606

}

532

607

}

533

608

/* If there was any arguments from configuration file,

609

pass them to parser as command arguments */

534

610

if(custom_argv != NULL){

535

ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, &plugin_list);

611

ret = argp_parse (&argp, custom_argc, custom_argv, ARGP_IN_ORDER,

612

0, NULL);

536

613

if (ret == ARGP_ERR_UNKNOWN){

537

614

fprintf(stderr, "Unknown error while parsing arguments\n");

538

615

exitstatus = EXIT_FAILURE;

540

617

}

541

618

}

542

619

620

/* Parse actual command line arguments, to let them override the

621

config file */

622

ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);

623

if (ret == ARGP_ERR_UNKNOWN){

624

fprintf(stderr, "Unknown error while parsing arguments\n");

625

exitstatus = EXIT_FAILURE;

626

goto fallback;

627

}

628

543

629

if(debug){

544

630

for(plugin *p = plugin_list; p != NULL; p=p->next){

545

631

fprintf(stderr, "Plugin: %s has %d arguments\n",

554

640

}

555

641

}

556

642

643

/* Strip permissions down to nobody */

557

644

ret = setuid(uid);

558

645

if (ret == -1){

559

646

perror("setuid");

560

}

561

647

}

562

648

setgid(gid);

563

649

if (ret == -1){

564

650

perror("setgid");

565

651

}

566

652

567

653

if (plugindir == NULL){

568

654

dir = opendir(PDIR);

569

655

} else {

591

677

592

678

FD_ZERO(&rfds_all);

593

679

680

/* Read and execute any executable in the plugin directory*/

594

681

while(true){

595

682

dirst = readdir(dir);

596

683

597

// All directory entries have been processed

684

/* All directory entries have been processed */

598

685

if(dirst == NULL){

599

686

if (errno == EBADF){

600

687

perror("readdir");

606

693

607

694

d_name_len = strlen(dirst->d_name);

608

695

609

// Ignore dotfiles, backup files and other junk

696

/* Ignore dotfiles, backup files and other junk */

610

697

{

611

698

bool bad_name = false;

612

699

627

714

break;

628

715

}

629

716

}

630

631

717

if(bad_name){

632

718

continue;

633

719

}

634

635

720

for(const char **suf = bad_suffixes; *suf != NULL; suf++){

636

721

size_t suf_len = strlen(*suf);

637

722

if((d_name_len >= suf_len)

664

749

free(filename);

665

750

continue;

666

751

}

667

752

753

/* Ignore non-executable files */

668

754

if (not S_ISREG(st.st_mode) or (access(filename, X_OK) != 0)){

669

755

if(debug){

670

756

fprintf(stderr, "Ignoring plugin dir entry \"%s\""

673

759

free(filename);

674

760

continue;

675

761

}

676

plugin *p = getplugin(dirst->d_name, &plugin_list);

762

763

plugin *p = getplugin(dirst->d_name);

677

764

if(p == NULL){

678

765

perror("getplugin");

679

766

free(filename);

689

776

}

690

777

{

691

778

/* Add global arguments to argument list for this plugin */

692

plugin *g = getplugin(NULL, &plugin_list);

779

plugin *g = getplugin(NULL);

693

780

if(g != NULL){

694

781

for(char **a = g->argv + 1; *a != NULL; a++){

695

782

if(not add_argument(p, *a)){

698

785

}

699

786

/* Add global environment variables */

700

787

for(char **e = g->environ; *e != NULL; e++){

701

if(not add_environment(p, *e)){

788

if(not add_environment(p, *e, false)){

702

789

perror("add_environment");

703

790

}

704

791

}

709

796

process, too. */

710

797

if(p->environ[0] != NULL){

711

798

for(char **e = environ; *e != NULL; e++){

712

char *copy = strdup(*e);

713

if(copy == NULL){

714

perror("strdup");

715

continue;

716

}

717

if(not add_environment(p, copy)){

799

if(not add_environment(p, *e, false)){

718

800

perror("add_environment");

719

801

}

720

802

}

727

809

exitstatus = EXIT_FAILURE;

728

810

goto fallback;

729

811

}

812

/* Ask OS to automatic close the pipe on exec */

730

813

ret = set_cloexec_flag(pipefd[0]);

731

814

if(ret < 0){

732

815

perror("set_cloexec_flag");

746

829

exitstatus = EXIT_FAILURE;

747

830

goto fallback;

748

831

}

749

// Starting a new process to be watched

832

/* Starting a new process to be watched */

750

833

pid_t pid = fork();

751

834

if(pid == -1){

752

835

perror("fork");

790

873

}

791

874

/* no return */

792

875

}

793

/* parent process */

876

/* Parent process */

877

close(pipefd[1]); /* Close unused write end of pipe */

794

878

free(filename);

795

close(pipefd[1]); /* close unused write end of pipe */

796

process *new_process = malloc(sizeof(process));

797

if (new_process == NULL){

798

perror("malloc");

879

plugin *new_plugin = getplugin(dirst->d_name);

880

if (new_plugin == NULL){

881

perror("getplugin");

799

882

ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);

800

883

if(ret < 0){

801

perror("sigprocmask");

884

perror("sigprocmask");

802

885

}

803

886

exitstatus = EXIT_FAILURE;

804

887

goto fallback;

805

888

}

806

889

807

*new_process = (struct process){ .pid = pid,

808

.fd = pipefd[0],

809

.next = process_list };

810

// List handling

811

process_list = new_process;

890

new_plugin->pid = pid;

891

new_plugin->fd = pipefd[0];

892

812

893

/* Unblock SIGCHLD so signal handler can be run if this process

813

894

has already completed */

814

895

ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask, NULL);

818

899

goto fallback;

819

900

}

820

901

821

FD_SET(new_process->fd, &rfds_all);

902

FD_SET(new_plugin->fd, &rfds_all);

822

903

823

if (maxfd < new_process->fd){

824

maxfd = new_process->fd;

904

if (maxfd < new_plugin->fd){

905

maxfd = new_plugin->fd;

825

906

}

826

907

827

908

}

828

829

free_plugin_list(plugin_list);

830

plugin_list = NULL;

831

909

832

910

closedir(dir);

833

911

dir = NULL;

834

835

if (process_list == NULL){

836

fprintf(stderr, "No plugin processes started. Incorrect plugin"

837

" directory?\n");

838

process_list = NULL;

912

913

for(plugin *p = plugin_list; p != NULL; p = p->next){

914

if(p->pid != 0){

915

break;

916

}

917

if(p->next == NULL){

918

fprintf(stderr, "No plugin processes started. Incorrect plugin"

919

" directory?\n");

920

free_plugin_list();

921

}

839

922

}

840

while(process_list){

923

924

/* Main loop while running plugins exist */

925

while(plugin_list){

841

926

fd_set rfds = rfds_all;

842

927

int select_ret = select(maxfd+1, &rfds, NULL, NULL, NULL);

843

928

if (select_ret == -1){

847

932

}

848

933

/* OK, now either a process completed, or something can be read

849

934

from one of them */

850

for(process *proc = process_list; proc ; proc = proc->next){

935

for(plugin *proc = plugin_list; proc != NULL;){

851

936

/* Is this process completely done? */

852

937

if(proc->eof and proc->completed){

853

938

/* Only accept the plugin output if it exited cleanly */

854

939

if(not WIFEXITED(proc->status)

855

940

or WEXITSTATUS(proc->status) != 0){

856

941

/* Bad exit by plugin */

942

857

943

if(debug){

858

944

if(WIFEXITED(proc->status)){

859

945

fprintf(stderr, "Plugin %u exited with status %d\n",

868

954

(unsigned int) (proc->pid));

869

955

}

870

956

}

957

871

958

/* Remove the plugin */

872

959

FD_CLR(proc->fd, &rfds_all);

960

873

961

/* Block signal while modifying process_list */

874

962

ret = sigprocmask(SIG_BLOCK, &sigchld_action.sa_mask, NULL);

875

963

if(ret < 0){

877

965

exitstatus = EXIT_FAILURE;

878

966

goto fallback;

879

967

}

880

/* Delete this process entry from the list */

881

if(process_list == proc){

882

/* First one - simple */

883

process_list = proc->next;

884

} else {

885

/* Second one or later */

886

for(process *p = process_list; p != NULL; p = p->next){

887

if(p->next == proc){

888

p->next = proc->next;

889

break;

890

}

891

}

892

}

968

893

969

/* We are done modifying process list, so unblock signal */

894

970

ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,

895

971

NULL);

896

972

if(ret < 0){

897

973

perror("sigprocmask");

898

}

899

free(proc->buffer);

900

free(proc);

901

/* We deleted this process from the list, so we can't go

902

proc->next. Therefore, start over from the beginning of

903

the process list */

904

break;

974

exitstatus = EXIT_FAILURE;

975

goto fallback;

976

}

977

978

if(plugin_list == NULL){

979

break;

980

}

981

982

plugin *next_plugin = proc->next;

983

free_plugin(proc);

984

proc = next_plugin;

985

continue;

905

986

}

987

906

988

/* This process exited nicely, so print its buffer */

907

989

908

990

bool bret = print_out_password(proc->buffer,

913

995

}

914

996

goto fallback;

915

997

}

998

916

999

/* This process has not completed. Does it have any output? */

917

1000

if(proc->eof or not FD_ISSET(proc->fd, &rfds)){

918

1001

/* This process had nothing to say at this time */

1002

proc = proc->next;

919

1003

continue;

920

1004

}

921

1005

/* Before reading, make the process' data buffer large enough */

934

1018

BUFFER_SIZE);

935

1019

if(ret < 0){

936

1020

/* Read error from this process; ignore the error */

1021

proc = proc->next;

937

1022

continue;

938

1023

}

939

1024

if(ret == 0){

948

1033

949

1034

fallback:

950

1035

951

if(process_list == NULL or exitstatus != EXIT_SUCCESS){

1036

if(plugin_list == NULL or exitstatus != EXIT_SUCCESS){

952

1037

/* Fallback if all plugins failed, none are found or an error

953

1038

occured */

954

1039

bool bret;

974

1059

}

975

1060

free(custom_argv);

976

1061

}

977

free_plugin_list(plugin_list);

978

1062

979

1063

if(dir != NULL){

980

1064

closedir(dir);

981

1065

}

982

1066

983

1067

/* Free the process list and kill the processes */

984

for(process *next; process_list != NULL; process_list = next){

985

next = process_list->next;

986

close(process_list->fd);

987

ret = kill(process_list->pid, SIGTERM);

988

if(ret == -1 and errno != ESRCH){

989

/* set-uid proccesses migth not get closed */

990

perror("kill");

1068

for(plugin *p = plugin_list; p != NULL; p = p->next){

1069

if(p->pid != 0){

1070

close(p->fd);

1071

ret = kill(p->pid, SIGTERM);

1072

if(ret == -1 and errno != ESRCH){

1073

/* Set-uid proccesses might not get closed */

1074

perror("kill");

1075

}

991

1076

}

992

free(process_list->buffer);

993

free(process_list);

994

1077

}

995

1078

996

1079

/* Wait for any remaining child processes to terminate */

1001

1084

perror("wait");

1002

1085

}

1003

1086

1087

free_plugin_list();

1088

1004

1089

free(plugindir);

1005

1090

free(argfile);

1006

1091