Client compile error on Ubuntu1204

[xia0pin9]

I got the following error message when trying to compile the client:

drivers/driver_exec.c: In function ‘driver_exec_close’:
drivers/driver_exec.c:207:3: error: implicit declaration of function ‘kill’ [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
make: *** [drivers/driver_exec.o] Error 1

[iagox86]

Hey, that should be easy to fix! I'm out of town with no laptop right now, but I'll take of it early next week.

Thanks for the report! On 6 Aug 2015 7:41 pm, "Yuping Li" notifications@github.com wrote:

I got the following error message when trying to compile the client:

drivers/driver_exec.c: In function ‘driver_exec_close’: drivers/driver_exec.c:207:3: error: implicit declaration of function ‘kill’ [-Werror=implicit-function-declaration] cc1: all warnings being treated as errors make: *\ [drivers/driver_exec.o] Error 1

— Reply to this email directly or view it on GitHub https://github.com/iagox86/dnscat2/issues/61.

[Retrospected]

i'm getting the same compile error, any news on this one ? :)

[iagox86]

Sorry, I just got back! :)

So, this is weird. It compiles on my Ubuntu machine, and I'm including the right headers. The only thing that might be causing it is a macro definition.. can one of you try this patch to see if it works?

diff --git a/client/Makefile b/client/Makefile
index 6a80616..9ba9d38 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -9,7 +9,7 @@
 CC?=gcc
 DEBUG_CFLAGS?=-g -DTESTMEMORY -Werror -O0
 RELEASE_CFLAGS?=-Os
-CFLAGS?=--std=c89 -I. -Wall -D_DEFAULT_SOURCE -fstack-protector-all -Wformat -Wformat-security
+CFLAGS?=--std=c89 -I. -Wall -D_DEFAULT_SOURCE -fstack-protector-all -Wformat -Wformat-security -D_POSIX_SOURCE
 LIBS=-pie -Wl,-z,relro,-z,now

 # Can't use a '#' in the shell command

[alexwebr]

The above patch fixes the build on my 12.04 machine!

[iagox86]

Thanks Alex!

[iagox86]

Hmm, it turns out this breaks compilation on Cygwin (hooray for git bisect!) - stupid *nix. :)