5 Commits

Author SHA1 Message Date
8da9668b1b Use IOV_MAX instead of UIO_MAXIOV
IOV_MAX appears to be more portable than UIO_MAXIOV.

* msghdr.c: Include <limits.h>. Remove fallback defintion of UIO_MAXIOV.
(get_optmem_max): Replace UIO_MAXIOV with IOV_MAX.
* tests/msg_control.c: Likewise.
2016-07-18 22:12:45 +00:00
bf2698a6b8 msghdr.c: limit output when printing excessively large messages
Limit output of struct msghdr.msg_control when
struct msghdr.msg_controllen is greater than the maximum ancillary
buffer size specified in /proc/sys/net/core/optmem_max file.

* configure.ac (AC_CHECK_FUNCS): Add open64.
* defs.h (read_int_from_file): New prototype.
* util.c (read_int_from_file): New function.
* msghdr.c (get_optmem_max): New function based on read_int_from_file.
(decode_msg_control): Use it to check control_len argument.
* tests/msg_control.c (test_big_len): New function.
(main): Use it to test printing of excessively large messages.
2016-07-03 22:15:45 +00:00
67135824fe msghdr.c: limit IP_RECVOPTS/IP_RETOPTS output in abbrev mode
* msghdr.c (print_cmsg_ip_opts): Do not print more than max_strlen
bytes of ip options in abbrev mode.
* tests/msg_control.c (print_ip_opts): Use DEFAULT_STRLEN.
(test_sol_ip): Test IP_RETOPTS output in abbrev mode.
2016-07-02 21:14:48 +00:00
d35d5ecc4d msghdr.c: limit SCM_RIGHTS output in abbrev mode
* msghdr.c (print_scm_rights): Do not print more than max_strlen
descriptors in abbrev mode.
* tests/msg_control.c (DEFAULT_STRLEN): New macro.
(print_fds): Use it.
(test_scm_rights3): New function.
(main): Use it to test SCM_RIGHTS output in abbrev mode.
* tests/msg_control-v.c: New file.
* tests/msg_control-v.test: New test.
* tests/.gitignore: Add msg_control-v.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add msg_control-v.test.
2016-07-02 21:14:26 +00:00
7555ffc390 tests: check decoding of struct msghdr ancillary data
* tests/msg_control.c: New file.
* tests/msg_control.test: New test.
* tests/.gitignore: Add msg_control.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add msg_control.test.
2016-07-01 20:13:37 +00:00