On AMD64 apparently, off_t is long but ELinks detected SIZEOF_OFF_T == 8
and defined OFF_T_FORMAT as "lld", which expects long long and so causes
GCC to warn about a mismatching format specifier. Because --enable-debug
adds -Werror to $CFLAGS, this warning breaks the build. When both
SIZEOF_LONG and SIZEOF_LONG_LONG are 8, ELinks cannot know which type
it should use.
To fix this, do not attempt to find a format specifier for off_t itself.
Instead cast all printed off_t values to a new typedef off_print_T that
is large enough, and replace OFF_T_FORMAT with OFF_PRINT_FORMAT which
is suitable for off_print_T altough not necessarily for off_t. ELinks
already had a similar scheme with time_print_T and TIME_PRINT_FORMAT.
This fixes parse_ftp_number to use off_t instead of long to store its
(intermediate) result and return type. It also introduces an OFFT_MAX type
"limit" that is used for validating the size of the parsed number.
A test-case for was added in 37c9bf3f75 to
test-ftp-parser and the patch has been confirmed to fix the test-case by
adamg and me. This closes bug 899, which is a duplicate of debian bug
403139.
... since the latter is for printing int64_T and we don't check for that and
we use PRId64 only for printing values having the off_t types.
Besides off_t has it's own ELinks specific defaults so it should be safer
to use an internal format string. If off_t is 8 bytes use "lld" else use
"ld".
Reported-by: Andy Tanenbaum <ast@cs.vu.nl>
... related to __INT_MAX__ and friends not being defined, and various
__builtin.. function declarations missing (they should probably be added
to sparse, but I am lazy).
