ctime(3) returns NULL and the printtime in the 3.0 print.c does not check for it:
Breakpoint 2, ctime (timep=0x7f7fffffe12c)
at /usr/src/lib/libc/time/localtime.c:1913
1913 {
(gdb) print *timep
$1 = 1134943252
(gdb) fin
Run till exit from #0 ctime (timep=0x7f7fffffe12c)
at /usr/src/lib/libc/time/localtime.c:1913
0x000000000040367b in printtime ()
Value returned is $2 = 0x7f7ff7a16e80 "Mon Dec 19 00:00:52 2005\n"
(gdb) n
Single stepping until exit from function printtime,
which has no line number information.
0x0000000000402b69 in printlong ()
(gdb) fin
Run till exit from #0 0x0000000000402b69 in printlong ()
-rw-rw-r-- 1 christos christos 26087656 Dec 19 2005 base.tgz
Breakpoint 2, ctime (timep=0x7f7fffffe12c)
at /usr/src/lib/libc/time/localtime.c:1913
1913 {
(gdb) print *timep
$3 = 1638725229
(gdb) fin
Run till exit from #0 ctime (timep=0x7f7fffffe12c)
at /usr/src/lib/libc/time/localtime.c:1913
0x000000000040367b in printtime ()
Value returned is $4 = 0x0
(gdb) qq
Undefined command: "qq". Try "help".
(gdb) q
A debugging session is active.
It turns out the reason this is happening is because we
are trying to load tzfiles using a 32 bit time_t and we are
probably reading junk.
christos
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