/* This function is always called from a fuzzing child. */
void output_syscall_prefix(const unsigned int childno, const unsigned int syscallno)
{
FILE *log_handle;
pid_t pid;
/* Exit if should not continue at all. */
if (logging == FALSE && quiet_level < MAX_LOGLEVEL)
return;
pid = getpid();
/* Find the log file handle */
log_handle = robust_find_logfile_handle();
/* do not output any ascii control symbols to files */
if ((logging == TRUE) && (log_handle != NULL))
output_syscall_prefix_to_fd(childno, pid, syscallno, log_handle, TRUE);
/* Output to stdout only if -q param is not specified */
if (quiet_level == MAX_LOGLEVEL)
output_syscall_prefix_to_fd(childno, pid, syscallno, stdout, monochrome);
}
/*
* level defines whether it gets displayed to the screen with printf.
* (it always logs).
* 0 = everything, even all the registers
* 1 = Watchdog prints syscall count
* 2 = Just the reseed values
*
*/
void output(unsigned char level, const char *fmt, ...)
{
va_list args;
int n;
FILE *handle;
unsigned int len, i, j;
pid_t pid;
char outputbuf[BUFSIZE];
char monobuf[BUFSIZE];
char *prefix = NULL;
char watchdog_prefix[]="[watchdog]";
char init_prefix[]="[init]";
char main_prefix[]="[main]";
char child_prefix[]="[childNN:1234567890]";
unsigned int slot;
if (logging == FALSE && level >= quiet_level)
return;
/* prefix preparation */
pid = getpid();
if (pid == watchdog_pid)
prefix = watchdog_prefix;
if (pid == initpid)
prefix = init_prefix;
if (pid == shm->mainpid)
prefix = main_prefix;
if (prefix == NULL) {
slot = find_pid_slot(pid);
sprintf(child_prefix, "[child%d:%d]", slot, pid);
prefix = child_prefix;
}
/* formatting output */
va_start(args, fmt);
n = vsnprintf(outputbuf, sizeof(outputbuf), fmt, args);
va_end(args);
if (n < 0) {
outputerr("## Something went wrong in output() [%d]\n", n);
exit(EXIT_FAILURE);
}
/* stdout output if needed */
if (quiet_level > level) {
printf("%s %s", prefix, outputbuf);
(void)fflush(stdout);
}
/* go on with file logs only if enabled */
if (logging == FALSE)
return;
handle = robust_find_logfile_handle();
if (!handle)
return;
/* If we've specified monochrome, we can just dump the buffer into
* the logfile as is, because there shouldn't be any ANSI codes
* in the buffer to be stripped out. */
if (monochrome == FALSE) {
/* copy buffer, sans ANSI codes */
len = strlen(outputbuf);
for (i = 0, j = 0; (i < len) && (i + 2 < BUFSIZE) && (j < BUFSIZE); i++) {
if (outputbuf[i] == '') {
if (outputbuf[i + 2] == '1')
i += 6; // ANSI_COLOUR
else
i += 3; // ANSI_RESET
} else {
monobuf[j] = outputbuf[i];
j++;
}
}
monobuf[j] = '\0';
fprintf(handle, "%s %s", prefix, monobuf);
} else {
fprintf(handle, "%s %s", prefix, outputbuf);
}
(void)fflush(handle);
}
/*
* level defines whether it gets displayed to the screen with printf.
* (it always logs).
* 0 = everything, even all the registers
* 1 = Watchdog prints syscall count
* 2 = Just the reseed values
*
*/
void output(unsigned char level, const char *fmt, ...)
{
va_list args;
int n;
FILE *handle;
pid_t pid;
char outputbuf[BUFSIZE];
char *prefix = NULL;
char watchdog_prefix[]="[watchdog]";
char init_prefix[]="[init]";
char main_prefix[]="[main]";
char child_prefix[32];
if (logging == FALSE && level >= quiet_level)
return;
/* prefix preparation */
pid = getpid();
if (pid == watchdog_pid)
prefix = watchdog_prefix;
if (pid == initpid)
prefix = init_prefix;
if (pid == shm->mainpid)
prefix = main_prefix;
if (prefix == NULL) {
unsigned int childno;
childno = find_childno(pid);
snprintf(child_prefix, sizeof(child_prefix), "[child%u:%u]", childno, pid);
prefix = child_prefix;
shm->children[childno]->logdirty = TRUE;
}
/* formatting output */
va_start(args, fmt);
n = vsnprintf(outputbuf, sizeof(outputbuf), fmt, args);
va_end(args);
if (n < 0) {
outputerr("## Something went wrong in output() [%d]\n", n);
if (getpid() == shm->mainpid)
exit_main_fail();
else
exit(EXIT_FAILURE);
}
/* stdout output if needed */
if (quiet_level > level) {
printf("%s %s", prefix, outputbuf);
(void)fflush(stdout);
}
/* go on with file logs only if enabled */
if (logging == FALSE)
return;
handle = robust_find_logfile_handle();
if (!handle)
return;
strip_ansi(outputbuf, BUFSIZE);
fprintf(handle, "%s %s", prefix, outputbuf);
(void)fflush(handle);
}
