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server.c
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server.c
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#include "server.hpp"
#if COMPILE_DEBUG_SERVER == 1
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
struct threadData
{
int port;
int debug;
};
void startServerAsThread(int port, int debug)
{
int ret;
pthread_t handle;
pthread_attr_t settings;
int stacksize;
ret = pthread_attr_init(&settings);
if (ret != 0)
{
printf("> [ERROR] pthread_attr_init() failed.\n");
return;
}
stacksize = 1024*1024*2;
ret = pthread_attr_setstacksize(&settings, stacksize);
if (ret != 0)
{
printf("> [ERROR] pthread_attr_setstacksize failed.\n");
return;
}
printf("> [INFO] Stack-Size set to %d Bytes (%.2f KB, %.2f MB)\n", stacksize, (float)(stacksize/1024), (float)((stacksize/1024)/1024));
struct threadData *tmp = (struct threadData *) malloc(sizeof(struct threadData));
tmp->port = port;
tmp->debug = debug;
pthread_create(&handle, &settings, (void *)mythread, (void*)tmp);
}
static void mythread(void *arg)
{
int ret, msglen, i;
struct threadData *tmp = arg;
int port = tmp->port;
int debug = tmp->debug;
/*
#ifdef SERVER_PORT
int port = SERVER_PORT;
#else
int port = 6666;
#endif
*/
char buffer[1024];
char bufferOut[BUFFER_OUT];
// 1024 commands, each 16 args, each 32 bytes = 512kb
char commands[12][16][32];
TCP_connection conn;
ret = TCP_server_start(&conn, port);
// SIGSEGV
#if 0
{
sigset_t emptyset;
// Install the SIGSEGV handler.
if (sigsegv_install_handler (&handler) < 0)
exit (2);
// Save the current signal mask.
sigemptyset (&emptyset);
sigprocmask (SIG_BLOCK, &emptyset, &mainsigset);
printf("> [INFO] SIGSEGV got installed\n");
}
#endif
memset(commands, 0, sizeof(commands));
if (!ret)
{
printf("> [ERROR] TCP_init(port=%d) failed!\n", port);
return;
}
printf("> [INFO] TCP_init(port=%d)\n", port);
while (1)
{
printf("> [INFO] TCP_wait_for_client()... \n");
ret = TCP_wait_for_client(&conn);
if (!ret)
{
printf("> [ERROR] TCP_wait_for_client() failed!\n");
continue;
}
printf("> [INFO] Client connected!\n");
ret = TCP_read_all(&conn, buffer, 1024-1, &msglen);
if (!ret)
{
printf("> [ERROR] TCP_read_all() failed!\n");
continue;
}
buffer[msglen] = '\0';
printf("> [INFO] TCP_read_all(): msglen=%d\n", msglen);
//printf("> [INFO] TCP_read_all(): msglen=%d msg=%s\n", msglen, buffer);
// maybe its sometime usefull
TCP_write(&conn, "{\n\t\"time\": \"%d\"", time(NULL));
{
char lol[MAX_ROWS][MAX_COLS][MAX_CHARS];
char *cmd, *arg1, *arg2, *arg3, *arg4;
int row, col;
char tmp[2048];
parseRequest(buffer, lol);
// debug table
for (row=0; row<MAX_ROWS; row++)
{
if (lol[row][0][0] == '\0')
break;
printf("] row[%d]: ", row);
for (col=0; col<MAX_COLS; col++)
{
if (lol[row][col][0] == '\0')
break;
printf("[%d]=%s ", col, lol[row][col]);
}
printf("\n");
}
for (row=0; row<MAX_ROWS; row++)
{
if (lol[row][0][0] == '\0')
break;
cmd = lol[row][0];
arg1 = lol[row][1];
arg2 = lol[row][2];
arg3 = lol[row][3];
arg4 = lol[row][4];
if (!strcmp(cmd, "getpid"))
{
TCP_write(&conn, "pid %d\n", getpid());
}
if (!strcmp(cmd, "getppid"))
{
TCP_write(&conn, "ppid %d\n", getppid());
}
if (!strcmp(cmd, "add"))
{
float a, b;
a = atof(arg1);
b = atof(arg2);
TCP_write(&conn, "%f + %f = %f\n", a, b, a+b);
}
// player = data 00401234 2540
if (!strcmp(cmd, "read"))
{
char *type, *number;
type = arg1;
number = arg2;
if (!strcmp(type, "float"))
{
int address;
float *tmpPtr;
sscanf(number, "%x", &address);
tmpPtr = (float *) address;
TCP_write(&conn, "float %x = %f\n", tmpPtr, *tmpPtr);
}
}
if (!strcmp(cmd, "olddump")) // dump which used words, instead of bytes
{
int start;
int dwords, bytes;
int i;
sscanf(arg1, "%x", &start);
dwords = atoi(arg2);
TCP_write(&conn, ",\n\"ret_001\":\"");
//dump %x %d = ", start, dwords);
/*
for (i=0; i<dwords; i++)
{
int *data = ((void *)start)+i;
TCP_write(&conn, "%.8x", *data);
}*/
bytes = dwords * 4;
for (i=0; i<bytes; i++)
{
char *data = (char *)start;
TCP_write(&conn, "%.2x", *(data+i) & 0xff);
// & 0xff because:
// query: dump 87a2518 1
// result: ffffffc8ffffff8c0245
}
TCP_write(&conn, "\"");
}
// int readMemoryRange(void *from, void *buffer, int bytes)
if (!strcmp(cmd, "dump"))
{
char *arg_from = arg1;
char *arg_bytes = arg2;
void *from;
int bytes;
void *buffer;
int i;
int ret;
sscanf(arg_from, "%x", (unsigned int*)&from); // prepare from-pointer
bytes = atoi(arg_bytes); // prepare bytes to read
TCP_write(&conn, ",\n\t\"ret_001\": ");
buffer = malloc(bytes);
//printf("MALLOC: %.8x\n", buffer);
if (buffer == NULL)
{
//TCP_write(&conn, ",\n\t\"ret_001\": false");
printf("MALLOC ERROR!");
return;
}
ret = readMemoryRange(from, buffer, bytes);
if (ret != -1)
{
TCP_write(&conn, "\"");
for (i=0; i<bytes; i++)
{
char *tmp = (char *)buffer;
TCP_write(&conn, "%.2x", tmp[i] & 0xff);
}
TCP_write(&conn, "\"");
} else {
TCP_write(&conn, "false");
printf("ERROR: readMemoryRange(0x%.8x, %.8x, %d)\n", (unsigned int)from, (unsigned int)buffer, bytes);
}
if (buffer != NULL)
free(buffer);
buffer = NULL;
}
if (!strcmp(cmd, "sizeof"))
{
if (!strcmp(arg1, "int"))
{
TCP_write(&conn, "sizeof int = %d\n", sizeof(int));
}
if (!strcmp(arg1, "float"))
{
TCP_write(&conn, "sizeof float = %d\n", sizeof(float));
}
if (!strcmp(arg1, "double"))
{
TCP_write(&conn, "sizeof double = %d\n", sizeof(double));
}
}
if (!strcmp(cmd, "write"))
{
char *type = arg1;
char *address = arg2;
char *value = arg3;
char *arg_value = arg3;
if (!strcmp(type, "float"))
{
float value_float;
float *ptr_float;
// point the pointer to the address
sscanf(address, "%x", (unsigned int*)&ptr_float);
// cast the string to float
sscanf(value, "%f", &value_float);
// write the value to the address
*ptr_float = value_float;
TCP_write(&conn, "write to=%.8x type=float value=%f", ptr_float, value_float);
}
if (!strcmp(arg1, "int"))
{
int *ptr;
int value;
sscanf(address, "%x", (unsigned int*)&ptr);
sscanf(arg_value, "%d", &value);
*ptr = value;
TCP_write(&conn, "write to=%.8x type=int value=%d", ptr, value);
}
if (!strcmp(arg1, "hex"))
{
unsigned char *ptr;
unsigned char buffer[128] = {0};
int bytes;
int i;
bytes = hexToBuffer(arg_value, (char *)buffer, 128);
sscanf(address, "%x", (unsigned int*)&ptr);
for (i=0; i<bytes; i++)
ptr[i] = buffer[i];
TCP_write(&conn, "write to=%.8x type=hex bytesWritten=%d bytes: \"", ptr, bytes);
for (i=0; i<bytes; i++)
TCP_write(&conn, "%.2x", buffer[i] & 0xff);
TCP_write(&conn, "\"");
}
//else {
// printf("[ERROR] unknown data-type! Usable: float, int\n");
//}
}
if (!strcmp(cmd, "nop"))
{
int i;
int from, to;
sscanf(arg1, "%x", &from);
sscanf(arg2, "%x", &to);
cracking_nop(from, to);
TCP_write(&conn, "nop from=%.8x to=%.8x", from, to);
}
if (!strcmp(cmd, "search"))
{
char *arg_from = arg1;
char *arg_to = arg2;
char *arg_type = arg3;
char *arg_value = arg4;
char *from;
char *to;
char *type = arg_type;
char *value = arg_value;
sscanf(arg_from, "%x", (unsigned int*)&from);
sscanf(arg_to, "%x", (unsigned int*)&to);
printf("asd from=%.8x to=%.8x type=%s value=%s\n", (unsigned int)from, (unsigned int)to, type, value);
if (!strcmp(type, "string"))
{
int len = strlen(value);
for (; from<to; from++)
{
//printf(".");
if (!strncmp(from, value, len))
{
TCP_write(&conn, "\"%s\" found at %.8x\n", value, from);
}
}
}
if (!strcmp(type, "hex"))
{
char buffer[128];
int bytes;
bytes = hexToBuffer(value, buffer, 128);
if (bytes == 0)
continue; // TODO: LOL FIX ME!
int len = strlen(value);
for (; from<to; from++)
{
//printf(".");
if (!memcmp(from, buffer, bytes))
{
TCP_write(&conn, "\n\t\"hex found at %.8x\"", from);
}
}
}
}
// FIND "CALL address"
if (!strcmp(cmd, "func"))
{
char *arg_address = arg1;
char *arg_which = arg2;
unsigned int *address;
char *which = arg_which;
sscanf(arg_address, "%x", (unsigned int*)&address);
TCP_write(&conn, "Overwrite Function (%s) at %.8x to NULL. Pointed to: %.8x\n", which, address, *address);
//*address = 0xabcd;
if (!strcmp(which, "shell"))
*address = (unsigned int)cdecl_injected_shell;
if (!strcmp(which, "closer"))
*address = (unsigned int)cdecl_injected_closer;
if (!strcmp(which, "return_0"))
*address = (unsigned int)cdecl_return_0;
if (!strcmp(which, "return_1"))
*address = (unsigned int)cdecl_return_1;
}
if (!strcmp(cmd, "mprotect"))
{
char *arg_addr = arg1;
char *arg_len = arg2;
char *arg_prot = arg3;
void *addr;
size_t len;
int prot;
int ret;
sscanf(arg_addr, "%x", (unsigned int*)&addr);
len = atoi(arg_len);
// default: give all rights
prot = PROT_NONE | PROT_READ | PROT_WRITE | PROT_EXEC;
if (strstr(arg_prot, "n"))
prot = PROT_NONE;
if (strstr(arg_prot, "r"))
prot |= PROT_READ;
if (strstr(arg_prot, "w"))
prot |= PROT_WRITE;
if (strstr(arg_prot, "x"))
prot |= PROT_EXEC;
ret = mprotect(addr, len, prot);
printf("mprotect(%.8x, %d, %.8x): try to give rights: ", (unsigned int)addr, len, prot);
if (prot == PROT_NONE)
printf("n");
if (prot & PROT_READ)
printf("r");
if (prot & PROT_WRITE)
printf("w");
if (prot & PROT_EXEC)
printf("x");
printf("\n");
if (ret == 0)
printf("MPROTECT: success!\n");
else
printf("MPROTECT: error!\n");
/*
if (ret == EACCES)
{
printf("MPROTECT: could not give the rights to the memory\n");
}
if (ret == EINVAL)
{
printf("MPROTECT: addr is not a valid pointer, or not a multiple of the system page size.\n");
}
if (ret == ENOMEM)
{
printf("MPROTECT: Internal kernel structures could not be allocated.\n");
}
*/
// todo: output and errorhandling
// http://linux.die.net/man/2/mprotect
}
// cant call it without stack-context (just as inline-function)
//if (!strcmp(cmd, "playerdamage"))
//{
// stackReturnInt(0);
// stackReturnInt(1);
// stackReturnInt(2);
// stackReturnInt(3);
// stackReturnInt(4);
// stackCallScriptFunction(0x08716400, stackCallbackPlayerDamage, 5);
//}
// this code changes the relative address of a CALL (opcode 0xE8)
if (!strcmp(cmd, "changecall"))
{
char *arg_address_of_call = arg1;
char *arg_new_function = arg2;
unsigned int address_of_call;
unsigned int new_function;
sscanf(arg_address_of_call, "%x", &address_of_call);
new_function = 0;
// todo: make function table out of it!
if (!strcmp(arg_new_function, "shell"))
new_function = (unsigned int)cdecl_injected_shell;
if (!strcmp(arg_new_function, "print"))
new_function = (unsigned int)cdecl_print;
if (!strcmp(arg_new_function, "closer"))
new_function = (unsigned int)cdecl_injected_closer;
if (!strcmp(arg_new_function, "return_0"))
new_function = (unsigned int)cdecl_return_0;
if (!strcmp(arg_new_function, "return_1"))
new_function = (unsigned int)cdecl_return_1;
unsigned char opcode_of_call;
memcpy(&opcode_of_call, (int *)address_of_call, 1);
address_of_call += 1; // now its pointing on the relative address!
int new_relative_address = new_function - (address_of_call + 5);
// write the new relative address
memcpy((int *)address_of_call, &new_relative_address, 4);
TCP_write(&conn, "opcode=%.2x address_of_call=%.8x new_function=%.8x new_relative_address=%.8x\n", opcode_of_call, address_of_call, new_function, new_relative_address);
}
if (!strcmp(cmd, "funcs"))
{
TCP_write(&conn, "%s -> %.8x\n", "shell", (unsigned int)cdecl_injected_shell);
TCP_write(&conn, "%s -> %.8x\n", "print", (unsigned int)cdecl_print);
TCP_write(&conn, "%s -> %.8x\n", "closer", (unsigned int)cdecl_injected_closer);
TCP_write(&conn, "%s -> %.8x\n", "return_0", (unsigned int)cdecl_return_0);
TCP_write(&conn, "%s -> %.8x\n", "return_1", (unsigned int)cdecl_return_1);
}
if (!strcmp(cmd, "dlopen"))
{
char *arg_library = arg1;
char *arg_function = arg2;
printf("%s -> %s\n", arg_library, arg_function);
void *handle = dlopen(arg_library, RTLD_GLOBAL);
printf("dlopen(\"%s\") returned: %.8x\n", arg_library, (unsigned int)handle);
TCP_write(&conn, "function-name=%s -> address=%.8x\n", arg_function, dlsym(handle, arg_function));
//dlclose(handle);
}
if (!strcmp(cmd, "dlcall"))
{
char *arg_library = arg1;
char *arg_function = arg2;
printf("%s -> %s\n", arg_library, arg_function);
//void *handle = dlopen(arg_library, RTLD_GLOBAL); // crashes
// void *handle = dlopen(arg_library, RTLD_LOCAL); // crashes
//void *handle = dlopen(arg_library, RTLD_NOW); // crashes
void *handle = dlopen(arg_library, RTLD_LAZY);
printf("dlopen(\"%s\") returned: %.8x\n", arg_library, (unsigned int)handle);
void (*func)() = dlsym(handle, arg_function);
TCP_write(&conn, "function-name=%s -> address=%.8x\n", arg_function, func);
func();
dlclose(handle);
}
if (!strcmp(cmd, "stack"))
{
int16_t *stack = (int16_t*)0x08297500;
int16_t *ptr;
int i;
for (i=1; i<=0xFFFD; i++)
{
ptr = &stack[8 * i];
switch ((*((int *)ptr+2) & 0x1f))
{
case 0: /*printf("#define STACK_UNDEFINED 0\n");*/ break;
case 1: printf("#define STACK_OBJECT 1\n"); break;
//case 2: printf("#define STACK_STRING 2 = \"%s\"\n", (char *)(*(int *)0x08206F00 + 8*(int) (*(int16_t *)&stack[i]) + 4)); break;
case 2: printf("#define STACK_STRING 2 = \"%s\"\n", (char *)(*(int *)0x08206F00 + 8* stack[i] + 4)); break;
case 3: printf("#define STACK_LOCALIZED_STRING 3\n"); break;
case 4: printf("#define STACK_VECTOR 4 = (%.2f, %.2f, %.2f)\n", *(float *)((int)(stack[i]) + 0), *(float *)((int)(stack[i]) + 4), *(float *)((int)(stack[i]) + 8)); break;
case 5: printf("#define STACK_FLOAT 5\n"); break;
case 6: printf("#define STACK_INT 6 = %.8x=%d\n", *(int *)&stack[i], *(int *)&stack[i]); break;
case 7: printf("#define STACK_CODEPOS 7\n"); break;
case 8: printf("#define STACK_PRECODEPOS 8\n"); break;
case 9: printf("#define STACK_FUNCTION 9\n"); break;
case 10: printf("#define STACK_STACK 10\n"); break;
case 11: printf("#define STACK_ANIMATION 11\n"); break;
case 12: printf("#define STACK_DEVELOPER_CODEPOS 12\n"); break;
case 13: printf("#define STACK_INCLUDE_CODEPOS 13\n"); break;
case 14: printf("#define STACK_THREAD_LIST 14\n"); break;
case 15: printf("#define STACK_THREAD_1 15\n"); break;
case 16: printf("#define STACK_THREAD_2 16\n"); break;
case 17: printf("#define STACK_THREAD_3 17\n"); break;
case 18: printf("#define STACK_THREAD_4 18\n"); break;
case 19: printf("#define STACK_STRUCT 19\n"); break;
case 20: printf("#define STACK_REMOVED_ENTITY 20\n"); break;
case 21: printf("#define STACK_ENTITY 21\n"); break;
case 22: printf("#define STACK_ARRAY 22\n"); break;
case 23: printf("#define STACK_REMOVED_THREAD 23\n"); break;
default: printf("CRAP!\n");
}
if ((*((int *)ptr+2) & 0x1f) == 10)
{
int v20 = *((int*)ptr+1);
int v21 = *((int16_t*)v20+4);
int v22 = *(int*)v20;
int v23 = v20 + 11;
printf("ptr=%.8x if=%.8x v20=%.8x v21=%8d v22=%.8x\n", (unsigned int)ptr, *(int *)&stack[8*i+4] & 0x60, v20, v21, v22);
while (v21)
{
--v21;
int v26 = *(char *)v23++;
int v27 = *(int *)v23;
v23 += 4;
if (v26 == 6)
{
//printf("\tv27=%.8x\n", v27);
}
}
}
//printf("#########next########\n"); // spam
}
}
}
//handleRequest(lol);
}
TCP_write(&conn, "\n}");
TCP_close_connection(&conn);
}
}
// MUST BE __cdecl, but i dont know how to tell it to gcc. but its default
int cdecl_injected_shell(int a, int b, int c) // args to get stack address
{
char buffer[128];
int i;
printf("called: int cdecl_injected_shell();\n");
printf("arg0 = %.8x\n", (unsigned int)&a);
printf("arg1 = %.8x\n", (unsigned int)&b);
printf("arg2 = %.8x\n", (unsigned int)&c);
while (1)
{
printf("dbg> ");
input(buffer, 128);
if (!strcmp(buffer, "help"))
{
printf("HELP!\n");
printf("---------------\n");
printf("Commands:\n");
printf(" quit\n");
}
else if (!strcmp(buffer, "quit"))
{
printf("GOOD BYE!\n");
break;
}
else if (!strcmp(buffer, "dump"))
{
unsigned int *address;
do
{
printf("dump address> ");
input(buffer, 128);
sscanf(buffer, "%x", (unsigned int*)&address);
printf("*0x%.8x = ", (unsigned int)address);
printf("0x%.8x ", *address);
printf("float=%f ", (float)*address);
printf("int=%d ", *address);
printf("uint=%u ", *address);
printf("123=%d ", 123);
printf("\n");
} while (strlen(buffer) > 0);
}
else {
printf("ERROR: Unknown Command: \"%s\"\n", buffer);
}
}
return 1;
}
int cdecl_return_0()
{
return 0;
}
int cdecl_return_1()
{
return 1;
}
int cdecl_print(int a0, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8, int a9)
{
//abort();
//exit(0);
printf("a0=%.8x\n", a0);
printf("a1=%.8x\n", a1);
printf("a2=%.8x\n", a2);
printf("a3=%.8x\n", a3);
printf("a4=%.8x\n", a4);
printf("a5=%.8x\n", a5);
printf("a6=%.8x\n", a6);
printf("a7=%.8x\n", a7);
printf("a8=%.8x\n", a8);
printf("a9=%.8x\n", a9);
printf("#######################################\n");
printf("#######################################\n");
printf("############## HELLO ################\n");
printf("#######################################\n");
printf("#######################################\n");
//return stackReturnInt(1);
return 1;
}
int TCP_server_start(TCP_connection *conn, int port)
{
int ret;
const int y = 1;
conn->create_socket = socket(AF_INET, SOCK_STREAM, 0);
if (conn->create_socket == -1)
return 0;
setsockopt(conn->create_socket, SOL_SOCKET, SO_REUSEADDR, &y, sizeof(int));
conn->address.sin_family = AF_INET;
conn->address.sin_addr.s_addr = INADDR_ANY;
conn->address.sin_port = htons(port);
ret = bind(conn->create_socket, (struct sockaddr *) &(conn->address), sizeof(conn->address));
if (ret != 0)
return 0;
ret = listen(conn->create_socket, 5);
if (ret == -1)
return 0;
conn->addrlen = sizeof(struct sockaddr_in);
return 1;
}
int TCP_wait_for_client(TCP_connection *conn)
{
conn->new_socket = accept(conn->create_socket, (struct sockaddr *) &(conn->address), &(conn->addrlen));
if (conn->new_socket == -1)
return 0;
return 1;
}
int TCP_close_connection(TCP_connection *conn)
{
int ret;
ret = close(conn->new_socket);
if (ret == -1)
return 0;
return 1;
}
// "testas asd" als query failed immer
// als BUFFER==16 war
// irgendwas is hier noch nich ganz richtig...
#define BUFFER 32
int TCP_read_all_bugged(TCP_connection *conn, void *buffer, int bufferLen, int *outMsgLen)
{
int client_recv_offset = 0;
char *localbuffer[BUFFER];
int bufferLeft;
int ret;
do
{
ret = recv(conn->new_socket, localbuffer, BUFFER, 0);
//printf("]] recv: %s\n", localbuffer);
if (ret == -1)
return 0;
bufferLeft = bufferLen - client_recv_offset;
if (ret > bufferLeft)
return 0;
memcpy(buffer+client_recv_offset, localbuffer, ret);
client_recv_offset += ret;
//printf("> [RECV] ret=%d bufferLeft=%d\n", ret, bufferLeft);
}
while (ret == BUFFER);
*outMsgLen = client_recv_offset;
return 1;
}
// just accepts ONE packet -.-
// other one dont want to work
int TCP_read_all(TCP_connection *conn, void *buffer, int bufferLen, int *outMsgLen)
{
int client_recv_offset = 0;
char *localbuffer[BUFFER];
int bufferLeft;
int ret;
ret = recv(conn->new_socket, buffer, bufferLen, 0);
if (ret == -1)
return 0;
*outMsgLen = ret;
return 1;
}
int TCP_write(TCP_connection *conn, const char *str, ...)
{
va_list args;
char tmp[2048];
va_start(args, str);
vsnprintf(tmp, 2048, str, args);
//vprintf(str, args); just for checking in console
va_end(args);
send(conn->new_socket, tmp, strlen(tmp), 0);
return 1;
}
int parseRequest(char *toParse, char table[MAX_ROWS][MAX_COLS][MAX_CHARS])
{
int len, i;
char cc; // current char
int atRow = 0; // the first Col of and Row is the command
int atCol = 0; // the next cols after the command are the arguments
int atPos = 0; // the index, what letter an cmd/arg is at
int row, col;
// clean the table from previous data
for (row=0; row<MAX_ROWS; row++)
for (col=0; col<MAX_ROWS; col++)
table[row][col][0] = '\0';
len = strlen(toParse);
for (i=0; i<len; i++)
{
cc = toParse[i];
// login $user $pass
switch (cc)
{
case '\n':
case '\r':
case ';':
{
if (atCol == 0 && atPos == 0)
{
//printf("> ignoring double newline/semicolon\n");
break;
}
// todo: prevent row-overflow
atRow++;
atCol = 0;
atPos = 0;
break;
}
case ' ':
case '\t':
if (atPos == 0)
{
//printf("> ignoring double space/tab\n");
break;
}
//printf("> new argument!\n");
// todo: prevent col-overflow
atCol++;
atPos = 0;
break;
default:
{
if (atPos < MAX_CHARS-2) // 0 to 62 = text, 63 = endmarker
{
table[atRow][atCol][atPos] = cc;
table[atRow][atCol][atPos+1] = '\0';
//printf("> new char: table[%d][%d][%d] = '%c'\n", atRow, atCol, atPos, table[atRow][atCol][atPos]);
atPos++;
}
}
}
}
return 1;
}
int handleRequest(char lol[MAX_ROWS][MAX_COLS][MAX_CHARS])
{
int row, col;
printf("> handleRequest();\n");
for (row=0; row<MAX_ROWS; row++)
{
if (lol[row][0][0] == '\0')
break;
printf("> ");
for (col=0; col<MAX_COLS; col++)
{
if (lol[row][col][0] == '\0')
break;
printf("%s ", lol[row][col]);
}
printf("\n");
}
return 1;
}
void input(char *buffer, int len)
{
int i;
i=0;
do
{
buffer[i] = fgetc(stdin);
if (buffer[i] == '\n')
{
buffer[i] = '\0';
return;
}
if (buffer[i] == EOF)
{
usleep(1000); // mikro seconds (1000 = 1 ms), else 99 % cpu
continue;
}
buffer[i+1] = '\0';
i++;
} while (1);
}
int readMemoryRange(void *from, void *buffer, int bytes)
{
int ret;