G_MODEM_MAX_STRLEN
static char g_modem_pattern_data[G_MODEM_MAX_STRLEN];
sc->sc_pattern[G_MODEM_MAX_STRLEN - 1] = 0;
char sc_pattern[G_MODEM_MAX_STRLEN];
char pattern[G_MODEM_MAX_STRLEN] = {"abcdefpattern"};