This result was produced on a 32-bit machine. It is real 32-bit hardware from the early 2000's. You can probably reproduce it in a virtual machine.
...
./libtool --tag=CC --quiet --mode=compile gcc -I. -I. -DHAVE_CONFIG_H -DLDNS_TRUST_ANCHOR_FILE="\"/usr/local/etc/unbound/root.key\"" -Wunused-function -Wstrict-prototypes -Wwrite-strings -W -Wall -g -O2 -I/usr/local/include -c ./duration.c -o duration.lo
./duration.c: In function ‘ldns_duration2string’:
./duration.c:265:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uY", (unsigned int) duration->years);
^~
./duration.c:265:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uY", (unsigned int) duration->years);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:271:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uM", (unsigned int) duration->months);
^~
./duration.c:271:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uM", (unsigned int) duration->months);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:277:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uW", (unsigned int) duration->weeks);
^~
./duration.c:277:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uW", (unsigned int) duration->weeks);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:283:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uD", (unsigned int) duration->days);
^~
./duration.c:283:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uD", (unsigned int) duration->days);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:292:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uH", (unsigned int) duration->hours);
^~
./duration.c:292:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uH", (unsigned int) duration->hours);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:298:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uM", (unsigned int) duration->minutes);
^~
./duration.c:298:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uM", (unsigned int) duration->minutes);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./duration.c:304:33: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
snprintf(num, count+2, "%uS", (unsigned int) duration->seconds);
^~
./duration.c:304:32: note: directive argument in the range [1, 2147483647]
snprintf(num, count+2, "%uS", (unsigned int) duration->seconds);
^~~~~
In file included from /usr/include/stdio.h:862:0,
from ./ldns/config.h:529,
from ./duration.c:40:
/usr/include/i386-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 3 and 12 bytes into a destination of size 6
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
wtoorop
commented
2 years ago
Hi Everyone,
This result was produced on a 32-bit machine. It is real 32-bit hardware from the early 2000's. You can probably reproduce it in a virtual machine.