EQ2EMu/EQ2/source/common/misc.cpp
image e9cd846d27 Code to investigate issue #163
Code to help identify issue #163
2020-08-11 21:49:56 -04:00

298 lines
6.3 KiB
C++

/*
EQ2Emulator: Everquest II Server Emulator
Copyright (C) 2007 EQ2EMulator Development Team (http://www.eq2emulator.net)
This file is part of EQ2Emulator.
EQ2Emulator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
EQ2Emulator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with EQ2Emulator. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef WIN32
// VS6 doesn't like the length of STL generated names: disabling
#pragma warning(disable:4786)
#endif
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <map>
#include <iostream>
#include <zlib.h>
#include <time.h>
#include "misc.h"
#include "types.h"
using namespace std;
#define ENC(c) (((c) & 0x3f) + ' ')
#define DEC(c) (((c) - ' ') & 0x3f)
map<int,string> DBFieldNames;
#ifndef WIN32
#ifdef FREEBSD
int print_stacktrace()
{
printf("Insert stack trace here...\n");
return(0);
}
#else //!WIN32 && !FREEBSD == linux
#include <execinfo.h>
int print_stacktrace()
{
void *ba[20];
int n = backtrace (ba, 20);
if (n != 0)
{
char **names = backtrace_symbols (ba, n);
if (names != NULL)
{
int i;
cerr << "called from " << (char*)names[0] << endl;
for (i = 1; i < n; ++i)
cerr << " " << (char*)names[i] << endl;
free (names);
}
}
return(0);
}
#endif //!FREEBSD
#endif //!WIN32
int Deflate(unsigned char* in_data, int in_length, unsigned char* out_data, int max_out_length)
{
z_stream zstream;
int zerror;
zstream.next_in = in_data;
zstream.avail_in = in_length;
zstream.zalloc = Z_NULL;
zstream.zfree = Z_NULL;
zstream.opaque = Z_NULL;
deflateInit(&zstream, Z_FINISH);
zstream.next_out = out_data;
zstream.avail_out = max_out_length;
zerror = deflate(&zstream, Z_FINISH);
if (zerror == Z_STREAM_END)
{
deflateEnd(&zstream);
return zstream.total_out;
}
else
{
cout << "Error: Deflate: deflate() returned " << zerror << " '";
if (zstream.msg)
cout << zstream.msg;
cout << "'" << endl;
zerror = deflateEnd(&zstream);
return 0;
}
}
int Inflate(unsigned char* indata, int indatalen, unsigned char* outdata, int outdatalen, bool iQuiet)
{
z_stream zstream;
int zerror = 0;
int i;
zstream.next_in = indata;
zstream.avail_in = indatalen;
zstream.next_out = outdata;
zstream.avail_out = outdatalen;
zstream.zalloc = Z_NULL;
zstream.zfree = Z_NULL;
zstream.opaque = Z_NULL;
i = inflateInit2( &zstream, 15 );
if (i != Z_OK) {
return 0;
}
zerror = inflate( &zstream, Z_FINISH );
if(zerror == Z_STREAM_END) {
inflateEnd( &zstream );
return zstream.total_out;
}
else {
if (!iQuiet) {
cout << "Error: Inflate: inflate() returned " << zerror << " '";
if (zstream.msg)
cout << zstream.msg;
cout << "'" << endl;
}
if (zerror == Z_DATA_ERROR || zerror == Z_ERRNO)
return -1;
if (zerror == Z_MEM_ERROR && zstream.msg == 0)
{
return 0;
}
zerror = inflateEnd( &zstream );
return 0;
}
}
void dump_message_column(unsigned char *buffer, unsigned long length, string leader, FILE *to)
{
unsigned long i,j;
unsigned long rows,offset=0;
rows=(length/16)+1;
for(i=0;i<rows;i++) {
fprintf(to, "%s%05ld: ",leader.c_str(),i*16);
for(j=0;j<16;j++) {
if(j == 8)
fprintf(to, "- ");
if (offset+j<length)
fprintf(to, "%02x ",*(buffer+offset+j));
else
fprintf(to, " ");
}
fprintf(to, "| ");
for(j=0;j<16;j++,offset++) {
if (offset<length) {
char c=*(buffer+offset);
fprintf(to, "%c",isprint(c) ? c : '.');
}
}
fprintf(to, "\n");
}
}
string long2ip(unsigned long ip)
{
char temp[16];
union { unsigned long ip; struct { unsigned char a,b,c,d; } octet;} ipoctet;
ipoctet.ip=ip;
sprintf(temp,"%d.%d.%d.%d",ipoctet.octet.a,ipoctet.octet.b,ipoctet.octet.c,ipoctet.octet.d);
return string(temp);
}
string string_from_time(string pattern, time_t now)
{
struct tm *now_tm;
char time_string[51];
if (!now)
time(&now);
now_tm=localtime(&now);
strftime(time_string,51,pattern.c_str(),now_tm);
return string(time_string);
}
string timestamp(time_t now)
{
return string_from_time("[%Y%m%d.%H%M%S] ",now);
}
string pop_arg(string &s, string seps, bool obey_quotes)
{
string ret;
unsigned long i;
bool in_quote=false;
unsigned long length=s.length();
for(i=0;i<length;i++) {
char c=s[i];
if (c=='"' && obey_quotes) {
in_quote=!in_quote;
}
if (in_quote)
continue;
if (seps.find(c)!=0xFFFFFFFF) {
break;
}
}
if (i==length) {
ret=s;
s="";
} else {
ret=s.substr(0,i);
s.erase(0,i+1);
}
return ret;
}
int EQsprintf(char *buffer, const char *pattern, const char *arg1, const char *arg2, const char *arg3, const char *arg4, const char *arg5, const char *arg6, const char *arg7, const char *arg8, const char *arg9)
{
const char *args[9],*ptr;
char *bptr;
args[0]=arg1;
args[1]=arg2;
args[2]=arg3;
args[3]=arg4;
args[4]=arg5;
args[5]=arg6;
args[6]=arg7;
args[7]=arg8;
args[8]=arg9;
for(ptr=pattern,bptr=buffer;*ptr;) {
switch (*ptr) {
case '%':
ptr++;
switch (*ptr) {
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
strcpy(bptr,args[*ptr-'0'-1]);
bptr+=strlen(args[*ptr-'0'-1]);
break;
}
break;
default:
*bptr=*ptr;
bptr++;
}
ptr++;
}
*bptr=0;
return (bptr-buffer);
}
bool alpha_check(unsigned char val){
if((val >= 0x41 && val <=0x5A) || (val >= 0x61 && val <=0x7A))
return true;
else
return false;
}
int GetItemNameCrc(string item_name){
const char *src = item_name.c_str();
uLong crc = crc32(0L, Z_NULL, 0);
crc = crc32(crc, (unsigned const char *)src,strlen(src)) + 1;
return sint32(crc) * -1;
}
unsigned int GetNameCrc(string name) {
const char* src = name.c_str();
uLong crc = crc32(0L, Z_NULL, 0);
crc = crc32(crc, (unsigned const char*)src, strlen(src)) + 1;
return int32(crc)-1;
}