summaryrefslogtreecommitdiff
path: root/lib/checksum.c
AgeCommit message (Collapse)Author
2008-11-29[lib] Move type cast in Fletcher checksumJoakim Tjernlund
The int type cast should be on the whole expression passed to the mod operator. Otherwise it won't work when/if c0/c1 is unsigned. Making c0/c1 unsigned makes it possible to use 5802 as MODX value.
2008-11-16[lib] Switch Fletcher checksum back to old ospfd versionPaul Jakma
* lib/checksum.c: (fletcher_checksum) Switch the second phase of the checksum back to the old ospfd logic. The isisd-derived version: a) is very hard to follow b) had some kind of subtle bug that caused it be wrong when c0=0 and c1=254 (potentially fixable by doing the mods before adjusting x and y) Additionally: - explicitely cast expressions using non-internal variables to int, to ensure the result is signed. - defensively change the length argument to 'size_t', to ensure the code works with that argument being unsigned.. Thanks to Joakim Tjernlund for the investigative work into this bug. * tests/test-checksum.c: new file to exercise the checksum code.
2008-08-22[lib] Add fletcher checksum implementationJingjing Duan
2008-08-13 Jingjing Duan <Jingjing.Duan@sun.com> * lib/checksum.?: (fletcher_checksum) implementation of Fletcher checksum, as per RFC1008. Signed-off-by: Paul Jakma <paul@quagga.net>
2005-11-032005-11-03 Paul Jakma <paul.jakma@sun.com>paul
* zebra.h: BSD BYTE_ORDER define isn't available everywhere, define if needs be. * checksum.h: new file. checksum.c exports in_cksum, provide a header for it. * checksum.c: (in_cksum) callers shouldn't have to know it uses a u_short internally, change to void *. * Makefile.am: Add checksum.h * command.h: remove bogus trailling slash. * md5.c: (general) Update it for the twentieth century. ANSI declarations are widely supported now.. Don't include system headers, only include zebra.h. Use POSIX types (the alternative is to define u_int64_t in a portable way - rest of Quagga needs same cleanup). Make endian-conditional code be compiler conditional rather than preprocessor conditional, so that breakage gets noticed quicker. * md5.h: POSIX types. Get rid of the odd __P() non-ANSI capable compiler compatibility hack.
2005-05-062005-05-06 Paul Jakma <paul@dishone.st>paul
* (general) extern and static'ification of functions in code and header. Cleanup any definitions with unspecified arguments. Add casts for callback assignments where the callback is defined, typically, as passing void *, but the function being assigned has some other pointer type defined as its argument, as gcc complains about casts from void * to X* via function arguments. Fix some old K&R style function argument definitions. Add noreturn gcc attribute to some functions, as appropriate. Add unused gcc attribute to some functions (eg ones meant to help while debugging) Add guard defines to headers which were missing them. * command.c: (install_node) add const qualifier, still doesnt shut up the warning though, because of the double pointer. (cmp_node) ditto * keychain.c: (key_str2time) Add GET_LONG_RANGE() macro, derived fromn vty.h ones to fix some of the (long) < 0 warnings. * thread.c: (various) use thread_empty (cpu_record_hash_key) should cast to uintptr_t, a stdint.h type * vty.h: Add VTY_GET_IPV4_ADDRESS and VTY_GET_IPV4_PREFIX so they removed from ospfd/ospf_vty.h * zebra.h: Move definition of ZEBRA_PORT to here, to remove dependence of lib on zebra/zserv.h
2002-12-13Initial revisionpaul