SQL / SQLI tokenizer parser analyzer. For
- C and C++
 - PHP
 - Python
 - Lua
 - Java (external port)
 - [LuaJIT/FFI] (https://github.com/p0pr0ck5/lua-ffi-libinjection) (external port)
 
See https://www.client9.com/ for details and presentations.
Simple example:
#include <stdio.h>
#include <strings.h>
#include <errno.h>
#include "libinjection.h"
#include "libinjection_sqli.h"
int main(int argc, const char* argv[])
{
    struct libinjection_sqli_state state;
    int issqli;
    const char* input = argv[1];
    size_t slen = strlen(input);
    /* in real-world, you would url-decode the input, etc */
    libinjection_sqli_init(&state, input, slen, FLAG_NONE);
    issqli = libinjection_is_sqli(&state);
    if (issqli) {
        fprintf(stderr, "sqli detected with fingerprint of '%s'\n", state.fingerprint);
    }
    return issqli;
}$ gcc -Wall -Wextra examples.c libinjection_sqli.c
$ ./a.out "-1' and 1=1 union/* foo */select load_file('/etc/passwd')--"
sqli detected with fingerprint of 's&1UE'
More advanced samples:
See CHANGELOG for details.
Versions are listed as "major.minor.point"
Major are significant changes to the API and/or fingerprint format. Applications will need recompiling and/or refactoring.
Minor are C code changes. These may include
- logical change to detect or suppress
 - optimization changes
 - code refactoring
 
Point releases are purely data changes. These may be safely applied.
The continuous integration results at https://travis-ci.org/client9/libinjection tests the following:
- build and unit-tests under GCC
 - build and unit-tests under Clang
 - static analysis using clang static analyzer
 - static analysis using cppcheck
 - checks for memory errors using valgrind
 - code coverage online using coveralls.io
 
Copyright (c) 2012-2016 Nick Galbreath
Licensed under the standard BSD 3-Clause open source license. See COPYING for details.
The src directory contains everything, but you only need to copy the following into your source tree: