int
makeWritable (const char *path) {
if (!isWritable(path)) {
char command[0X100];
snprintf(command, sizeof(command), "su -c 'chmod 666 %s'", path);
int status = executeHostCommand(command);
if (status != 0) return 0;
}
return 1;
}
int
installKernelModule (const char *name, int *status) {
if (status && *status) return *status == 2;
{
const char *command = "modprobe";
char buffer[0X100];
if (status) ++*status;
{
const char *path = "/proc/sys/kernel/modprobe";
FILE *stream = fopen(path, "r");
if (stream) {
char *line = fgets(buffer, sizeof(buffer), stream);
if (line) {
size_t length = strlen(line);
if (length && (line[length-1] == '\n')) line[--length] = 0;
if (length) command = line;
}
fclose(stream);
} else {
logMessage(LOG_WARNING, "cannot open %s: %s", path, strerror(errno));
}
}
{
const char *const arguments[] = {command, "-q", name, NULL};
int ok = executeHostCommand(arguments) == 0;
if (!ok) {
logMessage(LOG_WARNING, "kernel module not installed: %s", name);
return 0;
}
if (status) ++*status;
}
}
return 1;
}
static int
doScreenCommand (const char *command, ...) {
va_list args;
int count = 0;
va_start(args, command);
while (va_arg(args, char *)) ++count;
va_end(args);
{
char window[0X10];
const char *argv[count + 6];
const char **arg = argv;
*arg++ = "screen";
*arg++ = "-p";
snprintf(window, sizeof(window), "%d", currentVirtualTerminal_ScreenScreen());
*arg++ = window;
*arg++ = "-X";
*arg++ = command;
va_start(args, command);
while ((*arg++ = va_arg(args, char *)));
va_end(args);
{
int result = executeHostCommand(argv);
if (result == 0) return 1;
logMessage(LOG_ERR, "screen error: %d", result);
}
}
return 0;
}
