HP aC++/HP C A.06.20 Programmer's Guide

34 i, lp[i], i+1, ip[i+1], j, ip[j]);
35
36 return 0;
37 }
Compiling with +check=bounds:pointer:
$ cc +check=bounds:pointer rttest3.c
"rttest3.c", line 34: warning #2549-D: variable "j" is used before its
value is set
i, lp[i], i+1, ip[i+1], j, ip[j]);
^
Catch out-of-bounds pointer access through an uninitialized variable (the uninitialized
variable can be checked by +check=uninit):
$ RTC_NO_ABORT=1 a.out 2
Runtime Error: out of bounds buffer pointed by 0x40010320 has 40 bytes
(variable "a"), reading at 0x40010320-19824, 4 bytes ("rttest3.c", line 33)
(0) 0x0000000004004770 _rtc_raise_fault + 0x560 at rtc_utils.c:164
[./a.out](1) 0x0000000004008790 _rtc_oob_check_unknown_bounds + 0x1f0 at
rtc_bounds.c:465 [./a.out]
(2) 0x0000000004003920 main + 0x330 at rttest3.c:33 [./a.out]
(3) 0x60000000c0049c50 main_opd_entry + 0x50 [/usr/lib/hpux32/dld.so]
Memory fault(coredump)
Check off by one out-of-bounds access:
$ RTC_NO_ABORT=1 a.out 10
Runtime Error: out of bounds buffer pointed by 0x400a1890 has 40 bytes
(allocation stack trace: 0x040035c2, 0x04003612, 0xc0049c42), writing
at 0x400a1890+40, 4 bytes ("rttest3.c", line 29)
(0) 0x0000000004004770 _rtc_raise_fault + 0x560 at rtc_utils.c:164
[./a.out]
(1) 0x0000000004008790 _rtc_oob_check_unknown_bounds + 0x1f0 at
rtc_bounds.c:465 [./a.out]
(2) 0x00000000040037b0 main + 0x1c0 at rttest3.c:29 [./a.out]
(3) 0x60000000c0049c50 main_opd_entry + 0x50 [/usr/lib/hpux32/dld.so]
Runtime Error: out of bounds buffer pointed by 0x40010320 has 40 bytes
(variable "a"), writing at 0x40010320+44, 4 bytes ("rttest3.c", line 31)
(0) 0x0000000004004770 _rtc_raise_fault + 0x560 at rtc_utils.c:164
[./a.out]
(1) 0x0000000004008790 _rtc_oob_check_unknown_bounds + 0x1f0 at
rtc_bounds.c:465 [./a.out]
(2) 0x0000000004003810 main + 0x220 at rttest3.c:31 [./a.out]
(3) 0x60000000c0049c50 main_opd_entry + 0x50 [/usr/lib/hpux32/dld.so]
Runtime Error: out of bounds buffer pointed by 0x400a1890 has 40 bytes
(allocation stack trace: 0x040035c2, 0x04003612, 0xc0049c42), reading
at 0x400a1890+40, 4 bytes ("rttest3.c", line 33)
(0) 0x0000000004004770 _rtc_raise_fault + 0x560 at rtc_utils.c:164
[./a.out]
(1) 0x0000000004008790 _rtc_oob_check_unknown_bounds + 0x1f0 at
rtc_bounds.c:465 [./a.out]
(2) 0x00000000040038a0 main + 0x2b0 at rttest3.c:33 [./a.out]
(3) 0x60000000c0049c50 main_opd_entry + 0x50 [/usr/lib/hpux32/dld.so]
Runtime Error: out of bounds buffer pointed by 0x40010320 has 40 bytes
102 Command-Line Options