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463 commits

Author SHA1 Message Date
Erik Ekman
8041e0368c Print address when failing to bind 2021-06-04 18:38:50 +02:00
Erik Ekman
d02f1b4f41 tun: Fix warning 
tun.c:389:19: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
        if (addr.sc_unit < 0) {
            ~~~~~~~~~~~~ ^ ~
 2021-05-14 13:38:51 +02:00
Erik Ekman
02173b8352 Fix iteration of utun devices on macos 
Pass the constructed name instead of NULL to open_utun

Also add some error handling to utun_unit.
 2021-05-13 20:13:00 +02:00
Erik Ekman
dc307b7183 Add prototypes for vwarn/vwarnx 
Fixes this warning:
common.c:406:1: warning: no previous prototype for 'vwarn' [-Wmissing-prototypes]
  406 | vwarn(const char *fmt, va_list list)
      | ^~~~~
common.c:429:1: warning: no previous prototype for 'vwarnx' [-Wmissing-prototypes]
  429 | vwarnx(const char *fmt, va_list list)
      | ^~~~~~

Also move err() to have non-x versions first.
 2021-01-31 14:08:27 +01:00
Erik Ekman
6a7763c210 More compact no-op of Windows syslog 2021-01-31 14:01:13 +01:00
Erik Ekman
cc51ee6f02 Formatting: Indent multi-line prints less 2021-01-31 13:54:09 +01:00
Erik Ekman
4b3d6e2962 Formatting: Use tabs for indents 2021-01-31 13:46:12 +01:00
Erik Ekman
a9045705ba tun: Automatically attempt to use utun on mac 
Once /dev/tunX has been tried without success
 2021-01-21 17:40:22 +01:00
Erik Ekman
39356163d9 Formatting: Fix mixed use of tabs and spaces 2020-08-01 17:29:49 +02:00
Erik Ekman
9a041683be Formatting: Fix lines starting with spaces 2020-08-01 17:19:37 +02:00
Erik Ekman
8d2c86c73d Fix strncat size argument in send_handshake_query 
Found by clang:
client.c:1276:26: warning: the value of the size argument in 'strncat' is too large, might lead to a buffer overflow [-Wstrncat-size]
        strncat(buf, topdomain, sizeof(buf) - strlen(buf));
                                ^~~~~~~~~~~~~~~~~~~~~~~~~
 2020-07-25 15:45:24 +02:00
Erik Ekman
b7b1082dc6 client: Stop passing static variable userid to local functions 2020-07-24 21:17:18 +02:00
Erik Ekman
c399f915b7 Improve logging around getting server address 2020-07-24 21:01:38 +02:00
Erik Ekman
bbb604db06 Use send_handshake_query inside send_lazy_switch 2020-07-24 20:49:39 +02:00
Erik Ekman
ba90706429 Replace send_downenc_switch with send_handshake_query 2020-07-24 20:38:45 +02:00
Erik Ekman
9cba3299c4 Replace send_ip_request with send_handshake_query 2020-07-24 20:36:51 +02:00
Erik Ekman
5de13805d8 Replace send_codec_switch with send_handshake_query 2020-07-24 20:36:41 +02:00
Erik Ekman
d74939d323 Add send_handshake_query helper function 
Convert send_downenctest to use it.
Remove unused data/len args from send_downenctest.
 2020-07-24 20:18:07 +02:00
Erik Ekman
a8a20f570e Formatting: spaces around operators 2020-07-24 19:15:02 +02:00
Erik Ekman
aeacfbc2c0 Formatting: No spaces after '(' or before ')' 2020-07-24 19:02:41 +02:00
Erik Ekman
15f12d0693 Formatting: Space between 'for' and parenthesis 2020-07-24 18:57:57 +02:00
Erik Ekman
19d0d1be64 Formatting: Space between 'if' and parenthesis 2020-07-24 18:56:30 +02:00
Erik Ekman
310aedac8e Formatting: no space before parenthesis in function call. 2020-07-24 18:51:05 +02:00
Erik Ekman
cde0b7632d Set additional record count properly in NS reply 
For when there is no IPv4 address to return.
 2020-07-23 22:12:07 +02:00
Erik Ekman
ec6a1ac308 Fix IPv4 address in replies to A or NS queries (github issue #38) 
The destination field in struct query was changed from in_addr_t to
struct sockaddr_storage, wihtout updating the functions sending it
in src/dns.c.

Only add extra A answer for NS queries if destination refers to an
IPv4 address, and fail if trying to encode a reply to an A query
if destination is not IPv4.

This means NS requests received over IPv6 will not contain an address
and A requests will be ignored, unless the -n option is used, or the
www subdomain is requested which sets a fixed address (127.0.0.1).
 2020-07-23 21:49:46 +02:00
Erik Ekman
d8f3ac8971 Add helper function tun_uses_header() 
Remove code duplication and hide some ifdefs
 2020-07-03 17:06:14 +02:00
Erik Ekman
07b2978326 Only check for utun if tun_device was given 
Fixes github issue #37 hopefully.
 2020-07-03 16:53:30 +02:00
Erik Ekman
2032b44949 Look up external IP via DNS instead of HTTP 
Use myip.opendns.com via their resolver.

The code is now TCP free again :)
 2020-05-24 16:06:41 +02:00
Erik Ekman
e8a4c66719 Clean up makefile 2020-05-24 14:12:40 +02:00
Erik Ekman
8379384d37 Improve usage/help text around finding external IP 2020-05-24 13:41:54 +02:00
Daniel Schaefer
d2f671bdc7 Define searchpath for route with macro 
Allows it to be easily overridden using the compiler commmandline.
Just like IFCONFIGPATH.
 2019-08-24 16:43:34 +02:00
rofl0r
37960ab9dd client: warn when handshake fails due to BADIP 
other parts of the code show the meaningful error message too, but
not at the spot where it happened for me.
 2019-08-04 13:53:21 +02:00
Erik Ekman
d37ebdaca7
Merge pull request #28 from l29ah/strncat-warning 
client.c: don't produce an useless strncat usage warning
 2019-08-04 13:42:13 +02:00
gregor herrmann
024481c94b Fix cross compilation 
src/osflags hard codes the build architecture pkg-config. After making it
substitutable and substituting it from the build environment, iodine cross
builds successfully.

Original patch from Helmut Grohne <helmut@subdivi.de> in
https://bugs.debian.org/921822, adjusted to Git HEAD.
 2019-08-04 13:30:33 +02:00
Sergey Alirzaev
b406009c6d
client.c: don't produce an useless strncat usage warning 2018-10-01 04:04:15 +03:00
Erik Ekman
99c0efc467 Try building working binaries for non-ancient Android 
Based on help from admin@hypothermic.nl
 2017-10-22 11:54:59 +02:00
Erik Ekman
72bdf7f20e Merge branch 'protect-options' of https://github.com/Masaq-/iodine into protect_opts 2017-10-22 11:59:38 +02:00
chengzhicn
122ac1a25d check error returned by dns_decode 
before this commit, sending "GET / HTTP/1.1" to server will cause uninitialized variable access.
 2017-10-13 03:08:12 +08:00
Ralf Ramsauer
79455c380d consequently use tabs, and no spaces 
and wrap lines at 80 characters

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-04-10 21:26:13 +02:00
Ralf Ramsauer
8c5127b375 don't zero-initialise variable 
For global variables, the C standard ensures that this variable will be
zeroed on startup.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:50 -08:00
Ralf Ramsauer
119d1b2da1 dns: improve code style 
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:50 -08:00
Ralf Ramsauer
4591cafd27 encoding: simplify {places,eats}_dots 
Why not using constant bools?

Much simpler than complex function calls, that eventually return
constant values.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:50 -08:00
Ralf Ramsauer
0eb3b65158 encoding: use simple int's instead of accessor functions 
Why are those values exposed to the outer world? They seem not be in use
anyway.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:50 -08:00
Ralf Ramsauer
317511e3ca nitpick: coding style 
Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:50 -08:00
Ralf Ramsauer
844a2798eb encoder: use explicit variable names in operation structure 
This makes it obvious, what each variable stands for.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:49 -08:00
Ralf Ramsauer
6b438e7517 encoder: further simplifications 
Get rid of unique header files for each encoder, consolidate them to
where they are actually needed: encoding.h.

This also simplifies the generation of the base64u decoder, as its
header file does not need to be generated any longer.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:49 -08:00
Ralf Ramsauer
b517121f1c base encoder: simplify structures 
We don't need complex getters. Just expose basic operations as they are.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:49 -08:00
Ralf Ramsauer
d05923d2b1 global: constify things 
const everything, that should be const.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:49 -08:00
Ralf Ramsauer
52c4940523 Warn, warn warn. 
iodine does not seem to follow any styling guidelines (mixture of
different function prototypes, ...).  So let's introduce some.  This
will improve overall code quality and readability.

Additionally, warnings will improve code quality as well. Let's turn on
very pedantic warnings, and fix everything where the compiler barks
back.

Introduce the following function definition scheme:
  type function_name(type name, type1 name1 ...)
  {
  }
This allows us to copy and paste the definition to the declaration by
selecting one single line.

Furthermore, limit line length to 80 characters.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 21:30:01 -08:00
Ralf Ramsauer
ccc49f16f7 util: add missing #includes 
Detected by activating stronger warnings. If include is missing,
prototypes might diverge.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
 2017-03-11 14:23:02 -08:00