etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.

/*
 * I like using u8/u16/u32, but they don't seem to be defined anywhere.
 * So I solve the whole portability problem by defining them myself.
 */

typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;

typedef signed char s8;
typedef signed short s16;
typedef signed int s32;