use autoconf

13 years ago · ada32ad1c0
12 changed files with 7618 additions and 8 deletions
--- a/8
+++ b/8
@ -1,8 +0,0 @@
 main: main.o
 	gcc -g -O2 main.o -lev -lssl -L/usr/local/lib -o main
 main.o: *.c *.h Makefile
 	gcc -g -O2 -c -o main.o main.c
 .PHONY: clean
 clean:
 	rm *.o main
--- a/Makefile.am
+++ b/Makefile.am
@ -0,0 +1,3 @@
 bin_PROGRAMS = main
 main_SOURCES = encrypt.c encrypt.h main.c main.h
--- a/Makefile.in
+++ b/Makefile.in
@ -0,0 +1,631 @@
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--- a/config.h.in
+++ b/config.h.in
@ -0,0 +1,98 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 /* Define to 1 if you have the <arpa/inet.h> header file. */
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 #undef HAVE_MEMSET
 /* Define to 1 if you have the <netdb.h> header file. */
 #undef HAVE_NETDB_H
 /* Define to 1 if you have the <netinet/in.h> header file. */
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 #undef HAVE_SOCKET
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 /* Define to 1 if you have the <stdlib.h> header file. */
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 /* Define to 1 if you have the <strings.h> header file. */
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 /* Define to 1 if you have the <string.h> header file. */
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 #undef malloc
 /* Define to `int' if <sys/types.h> does not define. */
 #undef ssize_t
--- a/configure
+++ b/configure
--- a/configure.ac
+++ b/configure.ac
@ -0,0 +1,30 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 AC_PREREQ([2.68])
 AC_INIT([libev-hello], [0.1], [clowwindy42@gmail.com])
 AC_CONFIG_SRCDIR([encrypt.c])
 AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([foreign -Wall -Werror])
 # Checks for programs.
 AC_PROG_CC
 # Checks for libraries.
 AC_SEARCH_LIBS([MD5], [crypto], [ ], AC_MSG_ERROR([libcrypto not found.]))
 AC_SEARCH_LIBS([ev_io_start], [ev], [ ], AC_MSG_ERROR([libev not found.]))
 # Checks for header files.
 AC_CHECK_HEADERS([arpa/inet.h fcntl.h langinfo.h locale.h netdb.h netinet/in.h stdlib.h string.h strings.h sys/socket.h unistd.h])
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 AC_C_INLINE
 AC_TYPE_SSIZE_T
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([memset socket])
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
--- a/1
+++ b/1
@ -0,0 +1 @@
 /usr/share/automake-1.11/depcomp
--- a/encrypt.c
+++ b/encrypt.c
@ -0,0 +1,72 @@
 #include "encrypt.h"
 #include <openssl/md5.h>
 void encrypt(char *buf, int len) {
    char *end = buf + len;
    while (buf < end) {
        *buf = (char)encrypt_table[(unsigned char)*buf];
        buf++;
    }
 }
 void decrypt(char *buf, int len) {
    char *end = buf + len;
    while (buf < end) {
        *buf = (char)decrypt_table[(unsigned char)*buf];
        buf++;
    }
 }
 int send_encrypt(int sock, char *buf, int len, int flags) {
    char mybuf[4096];
    memcpy(mybuf, buf, len);
    encrypt(mybuf, len);
    return send(sock, mybuf, len, flags);
 }
 int recv_decrypt(int sock, char *buf, int len, int flags) {
    char mybuf[4096];
    int result = recv(sock, mybuf, len, flags);
    memcpy(buf, mybuf, len);
    decrypt(buf, len);
    return result;
 }
 inline int random_compare(unsigned char x, unsigned char y, unsigned int i, unsigned long long a) {
    return (a % (x + i) - a % (y + i));
 }
 void get_table(const unsigned char* key) {
    unsigned char *table = encrypt_table;
    unsigned char *tmp_hash;
    tmp_hash = MD5((const unsigned char*)key, strlen((const char*)key), NULL);
    unsigned long long a;
    a = *(unsigned long long *)tmp_hash;
    unsigned int i;
    for(i = 0; i < 256; ++i) {
        table[i] = i;
    }
    for(i = 1; i < 1024; ++i) {
        // use bubble sort in order to keep the array stable as in Python
        int k,j;
        unsigned char t;
        for(k = 256 - 2; k >= 0; --k)
        {
            for(j = 0;j <= k; ++j)
            {
                if(random_compare(table[j], table[j + 1], i, a) > 0)
                {
                    t=table[j];
                    table[j]=table[j + 1];
                    table[j + 1]=t;
                }
            }
        }
    }
    for(i = 0; i < 256; ++i) {
        // gen decrypt table from encrypt table
        decrypt_table[encrypt_table[i]] = i;
    }
 }
--- a/encrypt.h
+++ b/encrypt.h
@ -0,0 +1,17 @@
 #ifndef ENCRYPT_H
 #define ENCRYPT_H
 #include <sys/socket.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
 unsigned char encrypt_table[256];
 unsigned char decrypt_table[256];
 void get_table(const unsigned char* key);
 void encrypt(char *buf, int len);
 void decrypt(char *buf, int len);
 int send_encrypt(int sock, char *buf, int len, int flags);
 int recv_decrypt(int sock, char *buf, int len, int flags);
 #endif // ENCRYPT_H
--- a/1
+++ b/1
@ -0,0 +1 @@
 /usr/share/automake-1.11/install-sh
--- a/1
+++ b/1
@ -0,0 +1 @@
 /usr/share/automake-1.11/missing