Injection Demo

README.md

Injection test

Run:

$ make
$ DYLD_INSERT_LIBRARIES=inject.dylib ./main

The output is:

injection init
main

inject.c

#include <stdio.h>

__attribute__((constructor)) static void injection_init(void) {
    fputs("injection init\n", stdout);
}

main.c

#include <stdio.h>

int main(int argc, char **argv) {
	fputs("main\n", stdout);
}

Makefile

all: inject.dylib main

inject.dylib: inject.c
	cc -dynamiclib $^ -o $@

main: main.c
	cc $^ -o $@