72
72
/* Needed for conflict resolution */
73
73
const char plymouth_name[] = "plymouthd";
75
__attribute__((format (gnu_printf, 2, 3), nonnull(1)))
76
int fprintf_plus(FILE *stream, const char *format, ...){
78
va_start (ap, format);
80
TEMP_FAILURE_RETRY(fprintf(stream, "Mandos plugin %s: ",
81
program_invocation_short_name));
82
return TEMP_FAILURE_RETRY(vfprintf(stream, format, ap));
75
85
/* Function to use when printing errors */
76
86
__attribute__((format (gnu_printf, 3, 4)))
77
87
void error_plus(int status, int errnum, const char *formatstring,
86
96
fprintf(stderr, "Mandos plugin %s: ",
87
97
program_invocation_short_name);
88
98
vfprintf(stderr, formatstring, ap);
89
fprintf(stderr, ": ");
90
fprintf(stderr, "%s\n", strerror(errnum));
99
fprintf(stderr, ": %s\n", strerror(errnum));
91
100
error(status, errno, "vasprintf while printing error");
129
139
ret = asprintf(&cmdline_filename, "/proc/%s/cmdline",
130
140
proc_entry->d_name);
132
error(0, errno, "asprintf");
142
error_plus(0, errno, "asprintf");
155
165
if(cmdline_len + blocksize + 1 > cmdline_allocated){
156
166
tmp = realloc(cmdline, cmdline_allocated + blocksize + 1);
158
error(0, errno, "realloc");
168
error_plus(0, errno, "realloc");
168
178
sret = read(cl_fd, cmdline + cmdline_len,
169
179
cmdline_allocated - cmdline_len);
171
error(0, errno, "read");
181
error_plus(0, errno, "read");
214
224
ret = scandir("/proc", &direntries, is_plymouth, alphasort);
216
error(1, errno, "scandir");
226
error_plus(1, errno, "scandir");
218
228
free(direntries);
316
327
if(tcgetattr(STDIN_FILENO, &t_old) != 0){
318
error(0, errno, "tcgetattr");
329
error_plus(0, errno, "tcgetattr");
328
339
sigemptyset(&new_action.sa_mask);
329
340
ret = sigaddset(&new_action.sa_mask, SIGINT);
331
error(0, errno, "sigaddset");
342
error_plus(0, errno, "sigaddset");
334
345
ret = sigaddset(&new_action.sa_mask, SIGHUP);
336
error(0, errno, "sigaddset");
347
error_plus(0, errno, "sigaddset");
339
350
ret = sigaddset(&new_action.sa_mask, SIGTERM);
341
error(0, errno, "sigaddset");
352
error_plus(0, errno, "sigaddset");
344
355
/* Need to check if the handler is SIG_IGN before handling:
348
359
ret = sigaction(SIGINT, NULL, &old_action);
350
error(0, errno, "sigaction");
361
error_plus(0, errno, "sigaction");
353
364
if(old_action.sa_handler != SIG_IGN){
354
365
ret = sigaction(SIGINT, &new_action, NULL);
356
error(0, errno, "sigaction");
367
error_plus(0, errno, "sigaction");
360
371
ret = sigaction(SIGHUP, NULL, &old_action);
362
error(0, errno, "sigaction");
373
error_plus(0, errno, "sigaction");
365
376
if(old_action.sa_handler != SIG_IGN){
366
377
ret = sigaction(SIGHUP, &new_action, NULL);
368
error(0, errno, "sigaction");
379
error_plus(0, errno, "sigaction");
372
383
ret = sigaction(SIGTERM, NULL, &old_action);
374
error(0, errno, "sigaction");
385
error_plus(0, errno, "sigaction");
377
388
if(old_action.sa_handler != SIG_IGN){
378
389
ret = sigaction(SIGTERM, &new_action, NULL);
380
error(0, errno, "sigaction");
391
error_plus(0, errno, "sigaction");
391
402
t_new.c_lflag &= ~(tcflag_t)ECHO;
392
403
if(tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_new) != 0){
394
error(0, errno, "tcsetattr-echo");
405
error_plus(0, errno, "tcsetattr-echo");
461
472
sret = write(STDOUT_FILENO, buffer + written, n - written);
464
error(0, errno, "write");
475
error_plus(0, errno, "write");
483
494
sret = close(STDOUT_FILENO);
486
error(0, errno, "close");
497
error_plus(0, errno, "close");
489
500
status = EX_OSFILE;
501
512
if(errno != EINTR and not feof(stdin)){
502
error(0, errno, "getline");
513
error_plus(0, errno, "getline");
505
516
status = EX_UNAVAILABLE;
528
539
fprintf(stderr, "Restoring terminal attributes\n");
530
541
if(tcsetattr(STDIN_FILENO, TCSAFLUSH, &t_old) != 0){
531
error(0, errno, "tcsetattr+echo");
542
error_plus(0, errno, "tcsetattr+echo");
536
547
old_action.sa_handler = SIG_DFL;
537
548
ret = sigaction(signal_received, &old_action, NULL);
539
error(0, errno, "sigaction");
550
error_plus(0, errno, "sigaction");
541
552
raise(signal_received);