/mandos/release : revision 109

72

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

73

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

74

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*/

75

struct process;

76

77

typedef struct process{

86

78

pid_t pid;

87

79

int fd;

88

80

char *buffer;

91

83

bool eof;

92

84

volatile bool completed;

93

85

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;

94

96

struct plugin *next;

95

97

} plugin;

96

98

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){

99

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

100

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

104

101

if ((p->name == name)

105

102

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

106

103

return p;

121

118

122

119

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

123

120

.argc = 1,

121

.envc = 0,

124

122

.disabled = false,

125

.next = plugin_list };

123

.next = *plugin_list };

126

124

127

125

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

128

126

if (new_plugin->argv == NULL){

132

130

}

133

131

new_plugin->argv[0] = copy_name;

134

132

new_plugin->argv[1] = NULL;

135

133

136

134

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

137

135

if(new_plugin->environ == NULL){

138

136

free(copy_name);

141

139

return NULL;

142

140

}

143

141

new_plugin->environ[0] = NULL;

144

145

142

/* Append the new plugin to the list */

146

plugin_list = new_plugin;

143

*plugin_list = new_plugin;

147

144

return new_plugin;

148

145

}

149

146

179

176

}

180

177

181

178

/* Add to a plugin's environment */

182

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

179

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

183

180

if(p == NULL){

184

181

return false;

185

182

}

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

}

203

183

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

204

184

}

205

185

186

206

187

/*

207

188

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

208

189

* Descriptor Flags".

219

200

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

220

201

}

221

202

203

process *process_list = NULL;

222

204

223

205

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

224

206

status. */

225

207

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

226

208

while(true){

227

plugin *proc = plugin_list;

209

process *proc = process_list;

228

210

int status;

229

211

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

230

212

if(pid == 0){

238

220

/* No child processes */

239

221

break;

240

222

}

241

223

242

224

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

243

225

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

244

226

proc = proc->next;

252

234

}

253

235

}

254

236

255

/* Prints out a password to stdout */

256

237

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

257

238

ssize_t ret;

258

239

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

268

249

return true;

269

250

}

270

251

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);

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);

304

264

}

305

265

}

306

266

344

304

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

345

305

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

346

306

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

347

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

307

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

348

308

.arg = "VAR=value",

349

309

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

350

310

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

351

311

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

352

312

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

353

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

313

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

354

314

.arg = "PLUGIN:ENV=value",

355

315

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

356

316

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

357

317

.arg = "PLUGIN",

358

318

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

359

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

360

.arg = "PLUGIN",

361

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

362

319

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

363

320

.arg = "DIRECTORY",

364

321

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

376

333

{ .name = NULL }

377

334

};

378

335

379

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

380

struct argp_state *state) {

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;

381

340

switch (key) {

382

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

341

case 'g':

383

342

if (arg != NULL){

384

343

char *p;

385

344

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

386

345

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

387

346

continue;

388

347

}

389

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

348

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

390

349

perror("add_argument");

391

350

return ARGP_ERR_UNKNOWN;

392

351

}

393

352

}

394

353

}

395

354

break;

396

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

355

case 'e':

397

356

if(arg == NULL){

398

357

break;

399

358

}

400

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

401

perror("add_environment");

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

}

402

367

}

403

368

break;

404

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

369

case 'o':

405

370

if (arg != NULL){

406

371

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

407

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

372

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

408

373

break;

409

374

}

410

375

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

411

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

376

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

412

377

break;

413

378

}

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;

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

}

422

389

}

423

390

}

424

391

}

425

392

break;

426

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

393

case 'f':

427

394

if(arg == NULL){

428

395

break;

429

396

}

432

399

if(envdef == NULL){

433

400

break;

434

401

}

435

*envdef = '\0';

436

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

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)){

437

408

perror("add_environment");

438

409

}

439

410

}

440

411

break;

441

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

412

case 'd':

442

413

if (arg != NULL){

443

plugin *p = getplugin(arg);

414

plugin *p = getplugin(arg, plugins);

444

415

if(p == NULL){

445

416

return ARGP_ERR_UNKNOWN;

446

417

}

447

418

p->disabled = true;

448

419

}

449

420

break;

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);

421

case 128:

461

422

plugindir = strdup(arg);

462

423

if(plugindir == NULL){

463

424

perror("strdup");

464

425

}

465

426

break;

466

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

467

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

468

break;

469

case 130: /* --userid */

427

case 129:

428

argfile = strdup(arg);

429

if(argfile == NULL){

430

perror("strdup");

431

}

432

break;

433

case 130:

470

434

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

471

435

break;

472

case 131: /* --groupid */

436

case 131:

473

437

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

474

438

break;

475

case 132: /* --debug */

439

case 132:

476

440

debug = true;

477

441

break;

478

442

case ARGP_KEY_ARG:

486

450

return 0;

487

451

}

488

452

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

}

453

plugin *plugin_list = NULL;

521

454

522

struct argp argp = { .options = options,

523

.parser = parse_opt_config_file,

524

.args_doc = "",

455

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

456

.args_doc = "[+PLUS_SEPARATED_OPTIONS]",

525

457

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

526

458

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);

459

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

530

460

if (ret == ARGP_ERR_UNKNOWN){

531

461

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

532

462

exitstatus = EXIT_FAILURE;

533

463

goto fallback;

534

464

}

535

536

/* Reset to the normal argument parser */

537

argp.parser = parse_opt;

538

539

/* Open the configfile if available */

465

540

466

if (argfile == NULL){

541

467

conffp = fopen(AFILE, "r");

542

468

} else {

543

469

conffp = fopen(argfile, "r");

544

}

470

}

471

545

472

if(conffp != NULL){

546

473

char *org_line = NULL;

547

474

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

559

486

}

560

487

custom_argv[0] = argv[0];

561

488

custom_argv[1] = NULL;

562

563

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

564

commented text */

489

565

490

while(true){

566

491

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

567

492

if(sret == -1){

596

521

}

597

522

}

598

523

free(org_line);

599

} else {

524

} else{

600

525

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

601

526

not affect opening plugins */

602

527

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

605

530

goto fallback;

606

531

}

607

532

}

608

/* If there was any arguments from configuration file,

609

pass them to parser as command arguments */

533

610

534

if(custom_argv != NULL){

611

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

612

0, NULL);

535

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

613

536

if (ret == ARGP_ERR_UNKNOWN){

614

537

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

615

538

exitstatus = EXIT_FAILURE;

617

540

}

618

541

}

619

542

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

629

543

if(debug){

630

544

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

631

545

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

640

554

}

641

555

}

642

556

643

/* Strip permissions down to nobody */

644

557

ret = setuid(uid);

645

558

if (ret == -1){

646

559

perror("setuid");

647

}

560

}

561

648

562

setgid(gid);

649

563

if (ret == -1){

650

564

perror("setgid");

651

565

}

652

566

653

567

if (plugindir == NULL){

654

568

dir = opendir(PDIR);

655

569

} else {

677

591

678

592

FD_ZERO(&rfds_all);

679

593

680

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

681

594

while(true){

682

595

dirst = readdir(dir);

683

596

684

/* All directory entries have been processed */

597

// All directory entries have been processed

685

598

if(dirst == NULL){

686

599

if (errno == EBADF){

687

600

perror("readdir");

693

606

694

607

d_name_len = strlen(dirst->d_name);

695

608

696

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

609

// Ignore dotfiles, backup files and other junk

697

610

{

698

611

bool bad_name = false;

699

612

714

627

break;

715

628

}

716

629

}

630

717

631

if(bad_name){

718

632

continue;

719

633

}

634

720

635

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

721

636

size_t suf_len = strlen(*suf);

722

637

if((d_name_len >= suf_len)

749

664

free(filename);

750

665

continue;

751

666

}

752

753

/* Ignore non-executable files */

667

754

668

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

755

669

if(debug){

756

670

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

759

673

free(filename);

760

674

continue;

761

675

}

762

763

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

676

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

764

677

if(p == NULL){

765

678

perror("getplugin");

766

679

free(filename);

776

689

}

777

690

{

778

691

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

779

plugin *g = getplugin(NULL);

692

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

780

693

if(g != NULL){

781

694

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

782

695

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

785

698

}

786

699

/* Add global environment variables */

787

700

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

788

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

701

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

789

702

perror("add_environment");

790

703

}

791

704

}

796

709

process, too. */

797

710

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

798

711

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

799

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

712

char *copy = strdup(*e);

713

if(copy == NULL){

714

perror("strdup");

715

continue;

716

}

717

if(not add_environment(p, copy)){

800

718

perror("add_environment");

801

719

}

802

720

}

809

727

exitstatus = EXIT_FAILURE;

810

728

goto fallback;

811

729

}

812

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

813

730

ret = set_cloexec_flag(pipefd[0]);

814

731

if(ret < 0){

815

732

perror("set_cloexec_flag");

829

746

exitstatus = EXIT_FAILURE;

830

747

goto fallback;

831

748

}

832

/* Starting a new process to be watched */

749

// Starting a new process to be watched

833

750

pid_t pid = fork();

834

751

if(pid == -1){

835

752

perror("fork");

873

790

}

874

791

/* no return */

875

792

}

876

/* Parent process */

877

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

793

/* parent process */

878

794

free(filename);

879

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

880

if (new_plugin == NULL){

881

perror("getplugin");

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");

882

799

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

883

800

if(ret < 0){

884

perror("sigprocmask");

801

perror("sigprocmask");

885

802

}

886

803

exitstatus = EXIT_FAILURE;

887

804

goto fallback;

888

805

}

889

806

890

new_plugin->pid = pid;

891

new_plugin->fd = pipefd[0];

892

807

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

808

.fd = pipefd[0],

809

.next = process_list };

810

// List handling

811

process_list = new_process;

893

812

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

894

813

has already completed */

895

814

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

899

818

goto fallback;

900

819

}

901

820

902

FD_SET(new_plugin->fd, &rfds_all);

821

FD_SET(new_process->fd, &rfds_all);

903

822

904

if (maxfd < new_plugin->fd){

905

maxfd = new_plugin->fd;

823

if (maxfd < new_process->fd){

824

maxfd = new_process->fd;

906

825

}

907

826

908

827

}

828

829

free_plugin_list(plugin_list);

830

plugin_list = NULL;

909

831

910

832

closedir(dir);

911

833

dir = 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

}

834

835

if (process_list == NULL){

836

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

837

" directory?\n");

838

process_list = NULL;

922

839

}

923

924

/* Main loop while running plugins exist */

925

while(plugin_list){

840

while(process_list){

926

841

fd_set rfds = rfds_all;

927

842

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

928

843

if (select_ret == -1){

932

847

}

933

848

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

934

849

from one of them */

935

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

850

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

936

851

/* Is this process completely done? */

937

852

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

938

853

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

939

854

if(not WIFEXITED(proc->status)

940

855

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

941

856

/* Bad exit by plugin */

942

943

857

if(debug){

944

858

if(WIFEXITED(proc->status)){

945

859

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

954

868

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

955

869

}

956

870

}

957

958

871

/* Remove the plugin */

959

872

FD_CLR(proc->fd, &rfds_all);

960

961

873

/* Block signal while modifying process_list */

962

874

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

963

875

if(ret < 0){

965

877

exitstatus = EXIT_FAILURE;

966

878

goto fallback;

967

879

}

968

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

}

969

893

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

970

894

ret = sigprocmask (SIG_UNBLOCK, &sigchld_action.sa_mask,

971

895

NULL);

972

896

if(ret < 0){

973

897

perror("sigprocmask");

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;

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;

986

905

}

987

988

906

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

989

907

990

908

bool bret = print_out_password(proc->buffer,

995

913

}

996

914

goto fallback;

997

915

}

998

999

916

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

1000

917

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

1001

918

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

1002

proc = proc->next;

1003

919

continue;

1004

920

}

1005

921

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

1018

934

BUFFER_SIZE);

1019

935

if(ret < 0){

1020

936

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

1021

proc = proc->next;

1022

937

continue;

1023

938

}

1024

939

if(ret == 0){

1033

948

1034

949

fallback:

1035

950

1036

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

951

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

1037

952

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

1038

953

occured */

1039

954

bool bret;

1059

974

}

1060

975

free(custom_argv);

1061

976

}

977

free_plugin_list(plugin_list);

1062

978

1063

979

if(dir != NULL){

1064

980

closedir(dir);

1065

981

}

1066

982

1067

983

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

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

}

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");

1076

991

}

992

free(process_list->buffer);

993

free(process_list);

1077

994

}

1078

995

1079

996

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

1084

1001

perror("wait");

1085

1002

}

1086

1003

1087

free_plugin_list();

1088

1089

1004

free(plugindir);

1090

1005

free(argfile);

1091

1006