Segfault in cbor_typeof

[moraxy]

The file findings_000000 (hex dump below) causes the readline example to crash with a segfault due to a NULL pointer in common.c cbor_typeof carried over from main.c

00000000  e3 64 68 61 6c 66 f9 00  00 66 73 69 6e 67 6c 65  |.dhalf...fsingle|
00000010  fa 7f 7f ff ff 6d 73 69  6d 70 6c 65 20 76 61 6c  |.....msimple val|
00000020  75 65 73 83 f5 f4 f6                              |ues....|
00000027

backtrace

#0  0x000000000040670b in cbor_typeof (item=0x0) at libcbor/src/cbor/common.c:61
#1  0x000000000040370d in _cbor_nested_describe (item=0x0, out=0x7ffff7dd4400 <_IO_2_1_stdout_>, indent=0x0) at libcbor/src/cbor.c:260
#2  0x0000000000403e06 in cbor_describe (item=0x0, out=0x7ffff7dd4400 <_IO_2_1_stdout_>) at libcbor/src/cbor.c:388
#3  0x0000000000402fca in main (argc=0x2, argv=0x7fffffffe5c8) at libcbor/examples/readfile.c:39
#4  0x00007ffff7a36f45 in __libc_start_main (main=0x402ee5 <main>, argc=0x2, argv=0x7fffffffe5c8, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=0x7fffffffe5b8) at libc-start.c:287
#5  0x0000000000402e09 in _start ()

[PJK]

Turns out that the example just doesn't correctly handle error conditions from the decoder (shame on me). Thanks for reporting!