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ddnet/src/base/system.c

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com. */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
/*#include "detect.h"*/
#include "system.h"
/*#include "e_console.h"*/
#if defined(CONF_FAMILY_UNIX)
#include <sys/time.h>
#include <unistd.h>
/* unix net includes */
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <netdb.h>
#include <netinet/in.h>
#include <fcntl.h>
#include <pthread.h>
#include <arpa/inet.h>
#include <dirent.h>
#if defined(CONF_PLATFORM_MACOSX)
#include <Carbon/Carbon.h>
#endif
#elif defined(CONF_FAMILY_WINDOWS)
#define WIN32_LEAN_AND_MEAN
#define _WIN32_WINNT 0x0501 /* required for mingw to get getaddrinfo to work */
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <fcntl.h>
#include <direct.h>
#include <errno.h>
#ifndef EWOULDBLOCK
#define EWOULDBLOCK WSAEWOULDBLOCK
#endif
#else
#error NOT IMPLEMENTED
#endif
#if defined(__cplusplus)
extern "C" {
#endif
IOHANDLE io_stdin() { return (IOHANDLE)stdin; }
IOHANDLE io_stdout() { return (IOHANDLE)stdout; }
IOHANDLE io_stderr() { return (IOHANDLE)stderr; }
static DBG_LOGGER loggers[16];
static int num_loggers = 0;
static NETSTATS network_stats = {0};
static MEMSTATS memory_stats = {0};
static NETSOCKET invalid_socket = {NETTYPE_INVALID, -1, -1};
void dbg_logger(DBG_LOGGER logger)
{
loggers[num_loggers++] = logger;
}
void dbg_assert_imp(const char *filename, int line, int test, const char *msg)
{
if(!test)
{
dbg_msg("assert", "%s(%d): %s", filename, line, msg);
dbg_break();
}
}
void dbg_break()
{
*((unsigned*)0) = 0x0;
}
void dbg_msg(const char *sys, const char *fmt, ...)
{
va_list args;
char str[1024*4];
char *msg;
int i, len;
str_format(str, sizeof(str), "[%08x][%s]: ", (int)time(0), sys);
len = strlen(str);
msg = (char *)str + len;
va_start(args, fmt);
#if defined(CONF_FAMILY_WINDOWS)
_vsnprintf(msg, sizeof(str)-len, fmt, args);
#else
vsnprintf(msg, sizeof(str)-len, fmt, args);
#endif
va_end(args);
for(i = 0; i < num_loggers; i++)
loggers[i](str);
}
static void logger_stdout(const char *line)
{
printf("%s\n", line);
fflush(stdout);
}
static void logger_debugger(const char *line)
{
#if defined(CONF_FAMILY_WINDOWS)
OutputDebugString(line);
OutputDebugString("\n");
#endif
}
static IOHANDLE logfile = 0;
static void logger_file(const char *line)
{
io_write(logfile, line, strlen(line));
io_write(logfile, "\n", 1);
io_flush(logfile);
}
void dbg_logger_stdout() { dbg_logger(logger_stdout); }
void dbg_logger_debugger() { dbg_logger(logger_debugger); }
void dbg_logger_file(const char *filename)
{
logfile = io_open(filename, IOFLAG_WRITE);
if(logfile)
dbg_logger(logger_file);
else
dbg_msg("dbg/logger", "failed to open '%s' for logging", filename);
}
/* */
int memory_alloced = 0;
typedef struct MEMHEADER
{
const char *filename;
int line;
int size;
struct MEMHEADER *prev;
struct MEMHEADER *next;
} MEMHEADER;
typedef struct MEMTAIL
{
int guard;
} MEMTAIL;
static struct MEMHEADER *first = 0;
static const int MEM_GUARD_VAL = 0xbaadc0de;
void *mem_alloc_debug(const char *filename, int line, unsigned size, unsigned alignment)
{
/* TODO: fix alignment */
/* TODO: add debugging */
MEMHEADER *header = (struct MEMHEADER *)malloc(size+sizeof(MEMHEADER)+sizeof(MEMTAIL));
MEMTAIL *tail = (struct MEMTAIL *)(((char*)(header+1))+size);
header->size = size;
header->filename = filename;
header->line = line;
memory_stats.allocated += header->size;
memory_stats.total_allocations++;
memory_stats.active_allocations++;
tail->guard = MEM_GUARD_VAL;
header->prev = (MEMHEADER *)0;
header->next = first;
if(first)
first->prev = header;
first = header;
/*dbg_msg("mem", "++ %p", header+1); */
return header+1;
}
void mem_free(void *p)
{
if(p)
{
MEMHEADER *header = (MEMHEADER *)p - 1;
MEMTAIL *tail = (MEMTAIL *)(((char*)(header+1))+header->size);
if(tail->guard != MEM_GUARD_VAL)
dbg_msg("mem", "!! %p", p);
/* dbg_msg("mem", "-- %p", p); */
memory_stats.allocated -= header->size;
memory_stats.active_allocations--;
if(header->prev)
header->prev->next = header->next;
else
first = header->next;
if(header->next)
header->next->prev = header->prev;
free(header);
}
}
void mem_debug_dump(IOHANDLE file)
{
char buf[1024];
MEMHEADER *header = first;
if(!file)
file = io_open("memory.txt", IOFLAG_WRITE);
if(file)
{
while(header)
{
str_format(buf, sizeof(buf), "%s(%d): %d\n", header->filename, header->line, header->size);
io_write(file, buf, strlen(buf));
header = header->next;
}
io_close(file);
}
}
void mem_copy(void *dest, const void *source, unsigned size)
{
memcpy(dest, source, size);
}
void mem_move(void *dest, const void *source, unsigned size)
{
memmove(dest, source, size);
}
void mem_zero(void *block,unsigned size)
{
memset(block, 0, size);
}
int mem_check_imp()
{
MEMHEADER *header = first;
while(header)
{
MEMTAIL *tail = (MEMTAIL *)(((char*)(header+1))+header->size);
if(tail->guard != MEM_GUARD_VAL)
{
dbg_msg("mem", "Memory check failed at %s(%d): %d", header->filename, header->line, header->size);
return 0;
}
header = header->next;
}
return 1;
}
IOHANDLE io_open(const char *filename, int flags)
{
if(flags == IOFLAG_READ)
{
#if defined(CONF_FAMILY_WINDOWS)
// check for filename case sensitive
WIN32_FIND_DATA finddata;
HANDLE handle;
int length;
length = str_length(filename);
if(!filename || !length || filename[length-1] == '\\')
return 0x0;
handle = FindFirstFile(filename, &finddata);
if(handle == INVALID_HANDLE_VALUE || str_comp(filename+length-str_length(finddata.cFileName), finddata.cFileName))
return 0x0;
FindClose(handle);
#endif
return (IOHANDLE)fopen(filename, "rb");
}
if(flags == IOFLAG_WRITE)
return (IOHANDLE)fopen(filename, "wb");
return 0x0;
}
unsigned io_read(IOHANDLE io, void *buffer, unsigned size)
{
return fread(buffer, 1, size, (FILE*)io);
}
unsigned io_skip(IOHANDLE io, int size)
{
fseek((FILE*)io, size, SEEK_CUR);
return size;
}
int io_seek(IOHANDLE io, int offset, int origin)
{
int real_origin;
switch(origin)
{
case IOSEEK_START:
real_origin = SEEK_SET;
break;
case IOSEEK_CUR:
real_origin = SEEK_CUR;
break;
case IOSEEK_END:
real_origin = SEEK_END;
break;
default:
return -1;
}
return fseek((FILE*)io, offset, real_origin);
}
long int io_tell(IOHANDLE io)
{
return ftell((FILE*)io);
}
long int io_length(IOHANDLE io)
{
long int length;
io_seek(io, 0, IOSEEK_END);
length = io_tell(io);
io_seek(io, 0, IOSEEK_START);
return length;
}
unsigned io_write(IOHANDLE io, const void *buffer, unsigned size)
{
return fwrite(buffer, 1, size, (FILE*)io);
}
int io_close(IOHANDLE io)
{
fclose((FILE*)io);
return 1;
}
int io_flush(IOHANDLE io)
{
fflush((FILE*)io);
return 0;
}
void *thread_create(void (*threadfunc)(void *), void *u)
{
#if defined(CONF_FAMILY_UNIX)
pthread_t id;
pthread_create(&id, NULL, (void *(*)(void*))threadfunc, u);
return (void*)id;
#elif defined(CONF_FAMILY_WINDOWS)
return CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)threadfunc, u, 0, NULL);
#else
#error not implemented
#endif
}
void thread_wait(void *thread)
{
#if defined(CONF_FAMILY_UNIX)
pthread_join((pthread_t)thread, NULL);
#elif defined(CONF_FAMILY_WINDOWS)
WaitForSingleObject((HANDLE)thread, INFINITE);
#else
#error not implemented
#endif
}
void thread_destroy(void *thread)
{
#if defined(CONF_FAMILY_UNIX)
void *r = 0;
pthread_join((pthread_t)thread, &r);
#else
/*#error not implemented*/
#endif
}
void thread_yield()
{
#if defined(CONF_FAMILY_UNIX)
sched_yield();
#elif defined(CONF_FAMILY_WINDOWS)
Sleep(0);
#else
#error not implemented
#endif
}
void thread_sleep(int milliseconds)
{
#if defined(CONF_FAMILY_UNIX)
usleep(milliseconds*1000);
#elif defined(CONF_FAMILY_WINDOWS)
Sleep(milliseconds);
#else
#error not implemented
#endif
}
void thread_detach(void *thread)
{
#if defined(CONF_FAMILY_UNIX)
pthread_detach((pthread_t)(thread));
#elif defined(CONF_FAMILY_WINDOWS)
CloseHandle(thread);
#else
#error not implemented
#endif
}
#if defined(CONF_FAMILY_UNIX)
typedef pthread_mutex_t LOCKINTERNAL;
#elif defined(CONF_FAMILY_WINDOWS)
typedef CRITICAL_SECTION LOCKINTERNAL;
#else
#error not implemented on this platform
#endif
LOCK lock_create()
{
LOCKINTERNAL *lock = (LOCKINTERNAL*)mem_alloc(sizeof(LOCKINTERNAL), 4);
#if defined(CONF_FAMILY_UNIX)
pthread_mutex_init(lock, 0x0);
#elif defined(CONF_FAMILY_WINDOWS)
InitializeCriticalSection((LPCRITICAL_SECTION)lock);
#else
#error not implemented on this platform
#endif
return (LOCK)lock;
}
void lock_destroy(LOCK lock)
{
#if defined(CONF_FAMILY_UNIX)
pthread_mutex_destroy((LOCKINTERNAL *)lock);
#elif defined(CONF_FAMILY_WINDOWS)
DeleteCriticalSection((LPCRITICAL_SECTION)lock);
#else
#error not implemented on this platform
#endif
mem_free(lock);
}
int lock_try(LOCK lock)
{
#if defined(CONF_FAMILY_UNIX)
return pthread_mutex_trylock((LOCKINTERNAL *)lock);
#elif defined(CONF_FAMILY_WINDOWS)
return TryEnterCriticalSection((LPCRITICAL_SECTION)lock);
#else
#error not implemented on this platform
#endif
}
void lock_wait(LOCK lock)
{
#if defined(CONF_FAMILY_UNIX)
pthread_mutex_lock((LOCKINTERNAL *)lock);
#elif defined(CONF_FAMILY_WINDOWS)
EnterCriticalSection((LPCRITICAL_SECTION)lock);
#else
#error not implemented on this platform
#endif
}
void lock_release(LOCK lock)
{
#if defined(CONF_FAMILY_UNIX)
pthread_mutex_unlock((LOCKINTERNAL *)lock);
#elif defined(CONF_FAMILY_WINDOWS)
LeaveCriticalSection((LPCRITICAL_SECTION)lock);
#else
#error not implemented on this platform
#endif
}
/* ----- time ----- */
int64 time_get()
{
#if defined(CONF_FAMILY_UNIX)
struct timeval val;
gettimeofday(&val, NULL);
return (int64)val.tv_sec*(int64)1000000+(int64)val.tv_usec;
#elif defined(CONF_FAMILY_WINDOWS)
static int64 last = 0;
int64 t;
QueryPerformanceCounter((PLARGE_INTEGER)&t);
if(t<last) /* for some reason, QPC can return values in the past */
return last;
last = t;
return t;
#else
#error not implemented
#endif
}
int64 time_freq()
{
#if defined(CONF_FAMILY_UNIX)
return 1000000;
#elif defined(CONF_FAMILY_WINDOWS)
int64 t;
QueryPerformanceFrequency((PLARGE_INTEGER)&t);
return t;
#else
#error not implemented
#endif
}
/* ----- network ----- */
static void netaddr_to_sockaddr_in(const NETADDR *src, struct sockaddr_in *dest)
{
mem_zero(dest, sizeof(struct sockaddr_in));
if(src->type != NETTYPE_IPV4)
{
dbg_msg("system", "couldn't convert NETADDR of type %d to ipv4", src->type);
return;
}
dest->sin_family = AF_INET;
dest->sin_port = htons(src->port);
mem_copy(&dest->sin_addr.s_addr, src->ip, 4);
}
static void netaddr_to_sockaddr_in6(const NETADDR *src, struct sockaddr_in6 *dest)
{
mem_zero(dest, sizeof(struct sockaddr_in6));
if(src->type != NETTYPE_IPV6)
{
dbg_msg("system", "couldn't not convert NETADDR of type %d to ipv6", src->type);
return;
}
dest->sin6_family = AF_INET6;
dest->sin6_port = htons(src->port);
mem_copy(&dest->sin6_addr.s6_addr, src->ip, 16);
}
static void sockaddr_to_netaddr(const struct sockaddr *src, NETADDR *dst)
{
if(src->sa_family == AF_INET)
{
mem_zero(dst, sizeof(NETADDR));
dst->type = NETTYPE_IPV4;
dst->port = htons(((struct sockaddr_in*)src)->sin_port);
mem_copy(dst->ip, &((struct sockaddr_in*)src)->sin_addr.s_addr, 4);
}
else if(src->sa_family == AF_INET6)
{
mem_zero(dst, sizeof(NETADDR));
dst->type = NETTYPE_IPV6;
dst->port = htons(((struct sockaddr_in6*)src)->sin6_port);
mem_copy(dst->ip, &((struct sockaddr_in6*)src)->sin6_addr.s6_addr, 16);
}
else
{
mem_zero(dst, sizeof(struct sockaddr));
dbg_msg("system", "couldn't convert sockaddr of family %d", src->sa_family);
}
}
int net_addr_comp(const NETADDR *a, const NETADDR *b)
{
return mem_comp(a, b, sizeof(NETADDR));
}
void net_addr_str(const NETADDR *addr, char *string, int max_length)
{
if(addr->type == NETTYPE_IPV4)
{
if(addr->port != 0)
str_format(string, max_length, "%d.%d.%d.%d:%d", addr->ip[0], addr->ip[1], addr->ip[2], addr->ip[3], addr->port);
else
str_format(string, max_length, "%d.%d.%d.%d", addr->ip[0], addr->ip[1], addr->ip[2], addr->ip[3]);
}
else if(addr->type == NETTYPE_IPV6)
{
if(addr->port != 0)
str_format(string, max_length, "[%x:%x:%x:%x:%x:%x:%x:%x]:%d",
(addr->ip[0]<<8)|addr->ip[1], (addr->ip[2]<<8)|addr->ip[3], (addr->ip[4]<<8)|addr->ip[5], (addr->ip[6]<<8)|addr->ip[7],
(addr->ip[8]<<8)|addr->ip[9], (addr->ip[10]<<8)|addr->ip[11], (addr->ip[12]<<8)|addr->ip[13], (addr->ip[14]<<8)|addr->ip[15],
addr->port);
else
str_format(string, max_length, "[%x:%x:%x:%x:%x:%x:%x:%x]",
(addr->ip[0]<<8)|addr->ip[1], (addr->ip[2]<<8)|addr->ip[3], (addr->ip[4]<<8)|addr->ip[5], (addr->ip[6]<<8)|addr->ip[7],
(addr->ip[8]<<8)|addr->ip[9], (addr->ip[10]<<8)|addr->ip[11], (addr->ip[12]<<8)|addr->ip[13], (addr->ip[14]<<8)|addr->ip[15]);
}
else
str_format(string, max_length, "unknown type %d", addr->type);
}
static int priv_net_extract(const char *hostname, char *host, int max_host, int *port)
{
int i;
*port = 0;
host[0] = 0;
if(hostname[0] == '[')
{
// ipv6 mode
for(i = 1; i < max_host && hostname[i] && hostname[i] != ']'; i++)
host[i-1] = hostname[i];
host[i-1] = 0;
if(hostname[i] != ']') // malformatted
return -1;
i++;
if(hostname[i] == ':')
*port = atol(hostname+i+1);
}
else
{
// generic mode (ipv4, hostname etc)
for(i = 0; i < max_host-1 && hostname[i] && hostname[i] != ':'; i++)
host[i] = hostname[i];
host[i] = 0;
if(hostname[i] == ':')
*port = atol(hostname+i+1);
}
return 0;
}
int net_host_lookup(const char *hostname, NETADDR *addr, int types)
{
struct addrinfo hints;
struct addrinfo *result;
int e;
char host[256];
int port = 0;
if(priv_net_extract(hostname, host, sizeof(host), &port))
return -1;
/*
dbg_msg("host lookup", "host='%s' port=%d %d", host, port, types);
*/
mem_zero(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
if(types == NETTYPE_IPV4)
hints.ai_family = AF_INET;
else if(types == NETTYPE_IPV6)
hints.ai_family = AF_INET6;
e = getaddrinfo(host, NULL, &hints, &result);
if(e != 0 || !result)
return -1;
sockaddr_to_netaddr(result->ai_addr, addr);
freeaddrinfo(result);
addr->port = port;
return 0;
}
static int parse_int(int *out, const char **str)
{
int i = 0;
*out = 0;
if(**str < '0' || **str > '9')
return -1;
i = **str - '0';
(*str)++;
while(1)
{
if(**str < '0' || **str > '9')
{
*out = i;
return 0;
}
i = (i*10) + (**str - '0');
(*str)++;
}
return 0;
}
static int parse_char(char c, const char **str)
{
if(**str != c) return -1;
(*str)++;
return 0;
}
static int parse_uint8(unsigned char *out, const char **str)
{
int i;
if(parse_int(&i, str) != 0) return -1;
if(i < 0 || i > 0xff) return -1;
*out = i;
return 0;
}
static int parse_uint16(unsigned short *out, const char **str)
{
int i;
if(parse_int(&i, str) != 0) return -1;
if(i < 0 || i > 0xffff) return -1;
*out = i;
return 0;
}
int net_addr_from_str(NETADDR *addr, const char *string)
{
const char *str = string;
mem_zero(addr, sizeof(NETADDR));
if(str[0] == '[')
{
/* ipv6 */
struct sockaddr_in6 sa6;
char buf[128];
int i;
str++;
for(i = 0; i < 127 && str[i] && str[i] != ']'; i++)
buf[i] = str[i];
buf[i] = 0;
str += i;
#if defined(CONF_FAMILY_WINDOWS)
{
int size;
sa6.sin6_family = AF_INET6;
size = (int)sizeof(sa6);
if(WSAStringToAddress(buf, AF_INET6, NULL, (struct sockaddr *)&sa6, &size) != 0)
return -1;
}
#else
if(inet_pton(AF_INET6, buf, &sa6) != 1)
return -1;
#endif
sockaddr_to_netaddr((struct sockaddr *)&sa6, addr);
if(*str == ']')
{
str++;
if(*str == ':')
{
str++;
if(parse_uint16(&addr->port, &str))
return -1;
}
}
else
return -1;
return 0;
}
else
{
/* ipv4 */
if(parse_uint8(&addr->ip[0], &str)) return -1;
if(parse_char('.', &str)) return -1;
if(parse_uint8(&addr->ip[1], &str)) return -1;
if(parse_char('.', &str)) return -1;
if(parse_uint8(&addr->ip[2], &str)) return -1;
if(parse_char('.', &str)) return -1;
if(parse_uint8(&addr->ip[3], &str)) return -1;
if(*str == ':')
{
str++;
if(parse_uint16(&addr->port, &str)) return -1;
}
addr->type = NETTYPE_IPV4;
}
return 0;
}
static void priv_net_close_socket(int sock)
{
#if defined(CONF_FAMILY_WINDOWS)
closesocket(sock);
#else
close(sock);
#endif
}
static int priv_net_close_all_sockets(NETSOCKET sock)
{
/* close down ipv4 */
if(sock.ipv4sock >= 0)
{
priv_net_close_socket(sock.ipv4sock);
sock.ipv4sock = -1;
sock.type &= ~NETTYPE_IPV4;
}
/* close down ipv6 */
if(sock.ipv6sock >= 0)
{
priv_net_close_socket(sock.ipv6sock);
sock.ipv6sock = -1;
sock.type &= ~NETTYPE_IPV6;
}
return 0;
}
static int priv_net_create_socket(int domain, int type, struct sockaddr *addr, int sockaddrlen)
{
int sock, e;
/* create socket */
sock = socket(domain, type, 0);
if(sock < 0)
{
dbg_msg("net", "failed to create socket with domain %d and type %d (%d '%s')", domain, type, errno, strerror(errno));
return -1;
}
/* set to IPv6 only if thats what we are creating */
#if defined(IPV6_V6ONLY) /* windows sdk 6.1 and higher */
if(domain == AF_INET6)
{
int ipv6only = 1;
setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&ipv6only, sizeof(ipv6only));
}
#endif
/* bind the socket */
e = bind(sock, addr, sockaddrlen);
if(e != 0)
{
dbg_msg("net", "failed to bind socket with domain %d and type %d (%d '%s')", domain, type, errno, strerror(errno));
priv_net_close_socket(sock);
return -1;
}
/* return the newly created socket */
return sock;
}
NETSOCKET net_udp_create(NETADDR bindaddr)
{
NETSOCKET sock = invalid_socket;
NETADDR tmpbindaddr = bindaddr;
int broadcast = 1;
if(bindaddr.type&NETTYPE_IPV4)
{
struct sockaddr_in addr;
int socket = -1;
/* bind, we should check for error */
tmpbindaddr.type = NETTYPE_IPV4;
netaddr_to_sockaddr_in(&tmpbindaddr, &addr);
socket = priv_net_create_socket(AF_INET, SOCK_DGRAM, (struct sockaddr *)&addr, sizeof(addr));
if(socket >= 0)
{
sock.type |= NETTYPE_IPV4;
sock.ipv4sock = socket;
}
/* set non-blocking */
net_set_non_blocking(sock);
/* set boardcast */
setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (const char*)&broadcast, sizeof(broadcast));
}
if(bindaddr.type&NETTYPE_IPV6)
{
struct sockaddr_in6 addr;
int socket = -1;
/* bind, we should check for error */
tmpbindaddr.type = NETTYPE_IPV6;
netaddr_to_sockaddr_in6(&tmpbindaddr, &addr);
socket = priv_net_create_socket(AF_INET6, SOCK_DGRAM, (struct sockaddr *)&addr, sizeof(addr));
if(socket >= 0)
{
sock.type |= NETTYPE_IPV6;
sock.ipv6sock = socket;
}
/* set non-blocking */
net_set_non_blocking(sock);
/* set boardcast */
setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (const char*)&broadcast, sizeof(broadcast));
}
/* return */
return sock;
}
int net_udp_send(NETSOCKET sock, const NETADDR *addr, const void *data, int size)
{
int d = -1;
if(addr->type&NETTYPE_IPV4)
{
if(sock.ipv4sock >= 0)
{
struct sockaddr_in sa;
if(addr->type&NETTYPE_LINK_BROADCAST)
{
mem_zero(&sa, sizeof(sa));
sa.sin_port = htons(addr->port);
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = INADDR_BROADCAST;
}
else
netaddr_to_sockaddr_in(addr, &sa);
d = sendto((int)sock.ipv4sock, (const char*)data, size, 0, (struct sockaddr *)&sa, sizeof(sa));
}
else
dbg_msg("net", "can't sent ipv4 traffic to this socket");
}
if(addr->type&NETTYPE_IPV6)
{
if(sock.ipv6sock >= 0)
{
struct sockaddr_in6 sa;
if(addr->type&NETTYPE_LINK_BROADCAST)
{
mem_zero(&sa, sizeof(sa));
sa.sin6_port = htons(addr->port);
sa.sin6_family = AF_INET6;
sa.sin6_addr.s6_addr[0] = 0xff; /* multicast */
sa.sin6_addr.s6_addr[1] = 0x02; /* link local scope */
sa.sin6_addr.s6_addr[15] = 1; /* all nodes */
}
else
netaddr_to_sockaddr_in6(addr, &sa);
d = sendto((int)sock.ipv6sock, (const char*)data, size, 0, (struct sockaddr *)&sa, sizeof(sa));
}
else
dbg_msg("net", "can't sent ipv6 traffic to this socket");
}
/*
else
dbg_msg("net", "can't sent to network of type %d", addr->type);
*/
/*if(d < 0)
{
char addrstr[256];
net_addr_str(addr, addrstr, sizeof(addrstr));
dbg_msg("net", "sendto error (%d '%s')", errno, strerror(errno));
dbg_msg("net", "\tsock = %d %x", sock, sock);
dbg_msg("net", "\tsize = %d %x", size, size);
dbg_msg("net", "\taddr = %s", addrstr);
}*/
network_stats.sent_bytes += size;
network_stats.sent_packets++;
return d;
}
int net_udp_recv(NETSOCKET sock, NETADDR *addr, void *data, int maxsize)
{
char sockaddrbuf[128];
socklen_t fromlen;// = sizeof(sockaddrbuf);
int bytes = 0;
if(bytes == 0 && sock.ipv4sock >= 0)
{
fromlen = sizeof(struct sockaddr_in);
bytes = recvfrom(sock.ipv4sock, (char*)data, maxsize, 0, (struct sockaddr *)&sockaddrbuf, &fromlen);
}
if(bytes <= 0 && sock.ipv6sock >= 0)
{
fromlen = sizeof(struct sockaddr_in6);
bytes = recvfrom(sock.ipv6sock, (char*)data, maxsize, 0, (struct sockaddr *)&sockaddrbuf, &fromlen);
}
if(bytes > 0)
{
sockaddr_to_netaddr((struct sockaddr *)&sockaddrbuf, addr);
network_stats.recv_bytes += bytes;
network_stats.recv_packets++;
return bytes;
}
else if(bytes == 0)
return 0;
return -1; /* error */
}
int net_udp_close(NETSOCKET sock)
{
return priv_net_close_all_sockets(sock);
}
NETSOCKET net_tcp_create(NETADDR bindaddr)
{
NETSOCKET sock = invalid_socket;
NETADDR tmpbindaddr = bindaddr;
if(bindaddr.type&NETTYPE_IPV4)
{
struct sockaddr_in addr;
int socket = -1;
/* bind, we should check for error */
tmpbindaddr.type = NETTYPE_IPV4;
netaddr_to_sockaddr_in(&tmpbindaddr, &addr);
socket = priv_net_create_socket(AF_INET, SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr));
if(socket >= 0)
{
sock.type |= NETTYPE_IPV4;
sock.ipv4sock = socket;
}
}
if(bindaddr.type&NETTYPE_IPV6)
{
struct sockaddr_in6 addr;
int socket = -1;
/* bind, we should check for error */
tmpbindaddr.type = NETTYPE_IPV6;
netaddr_to_sockaddr_in6(&tmpbindaddr, &addr);
socket = priv_net_create_socket(AF_INET6, SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr));
if(socket >= 0)
{
sock.type |= NETTYPE_IPV6;
sock.ipv6sock = socket;
}
}
/* return */
return sock;
}
int net_set_non_blocking(NETSOCKET sock)
{
unsigned long mode = 1;
if(sock.ipv4sock >= 0)
{
#if defined(CONF_FAMILY_WINDOWS)
ioctlsocket(sock.ipv4sock, FIONBIO, (unsigned long *)&mode);
#else
ioctl(sock.ipv4sock, FIONBIO, (unsigned long *)&mode);
#endif
}
if(sock.ipv6sock >= 0)
{
#if defined(CONF_FAMILY_WINDOWS)
ioctlsocket(sock.ipv6sock, FIONBIO, (unsigned long *)&mode);
#else
ioctl(sock.ipv6sock, FIONBIO, (unsigned long *)&mode);
#endif
}
return 0;
}
int net_set_blocking(NETSOCKET sock)
{
unsigned long mode = 0;
if(sock.ipv4sock >= 0)
{
#if defined(CONF_FAMILY_WINDOWS)
ioctlsocket(sock.ipv4sock, FIONBIO, (unsigned long *)&mode);
#else
ioctl(sock.ipv4sock, FIONBIO, (unsigned long *)&mode);
#endif
}
if(sock.ipv6sock >= 0)
{
#if defined(CONF_FAMILY_WINDOWS)
ioctlsocket(sock.ipv6sock, FIONBIO, (unsigned long *)&mode);
#else
ioctl(sock.ipv6sock, FIONBIO, (unsigned long *)&mode);
#endif
}
return 0;
}
int net_tcp_listen(NETSOCKET sock, int backlog)
{
if(sock.ipv4sock >= 0)
listen(sock.ipv4sock, backlog);
if(sock.ipv6sock >= 0)
listen(sock.ipv6sock, backlog);
return 0;
}
int net_tcp_accept(NETSOCKET sock, NETSOCKET *new_sock, NETADDR *a)
{
int s;
socklen_t sockaddr_len;
struct sockaddr addr;
*new_sock = invalid_socket;
sockaddr_len = sizeof(addr);
if(sock.ipv4sock >= 0)
{
s = accept(sock.ipv4sock, &addr, &sockaddr_len);
if (s != -1)
{
sockaddr_to_netaddr(&addr, a);
new_sock->type = NETTYPE_IPV4;
new_sock->ipv4sock = s;
return s;
}
}
if(sock.ipv6sock >= 0)
{
s = accept(sock.ipv6sock, &addr, &sockaddr_len);
if (s != -1)
{
sockaddr_to_netaddr(&addr, a);
new_sock->type = NETTYPE_IPV6;
new_sock->ipv6sock = s;
return s;
}
}
return 0;
}
int net_tcp_connect(NETSOCKET sock, const NETADDR *a)
{
if(a->type&NETTYPE_IPV4)
{
struct sockaddr_in addr;
netaddr_to_sockaddr_in(a, &addr);
return connect(sock.ipv4sock, (struct sockaddr *)&addr, sizeof(addr));
}
if(a->type&NETTYPE_IPV6)
{
struct sockaddr_in6 addr;
netaddr_to_sockaddr_in6(a, &addr);
return connect(sock.ipv6sock, (struct sockaddr *)&addr, sizeof(addr));
}
return 0;
}
int net_tcp_connect_non_blocking(NETSOCKET sock, NETADDR bindaddr)
{
int res = 0;
net_set_non_blocking(sock);
res = net_tcp_connect(sock, &bindaddr);
net_set_blocking(sock);
return res;
}
int net_tcp_send(NETSOCKET sock, const void *data, int size)
{
int bytes = 0;
if(sock.ipv4sock >= 0)
bytes = send((int)sock.ipv4sock, (const char*)data, size, 0);
if(sock.ipv6sock >= 0)
bytes = send((int)sock.ipv6sock, (const char*)data, size, 0);
return bytes;
}
int net_tcp_recv(NETSOCKET sock, void *data, int maxsize)
{
int bytes = 0;
if(sock.ipv4sock >= 0)
bytes = recv((int)sock.ipv4sock, (char*)data, maxsize, 0);
if(sock.ipv6sock >= 0)
bytes = recv((int)sock.ipv6sock, (char*)data, maxsize, 0);
return bytes;
}
int net_tcp_close(NETSOCKET sock)
{
return priv_net_close_all_sockets(sock);
}
int net_errno()
{
return errno;
}
int net_would_block()
{
return net_errno() == EWOULDBLOCK;
}
int net_init()
{
#if defined(CONF_FAMILY_WINDOWS)
WSADATA wsaData;
int err = WSAStartup(MAKEWORD(1, 1), &wsaData);
dbg_assert(err == 0, "network initialization failed.");
return err==0?0:1;
#endif
return 0;
}
int fs_listdir(const char *dir, FS_LISTDIR_CALLBACK cb, int type, void *user)
{
#if defined(CONF_FAMILY_WINDOWS)
WIN32_FIND_DATA finddata;
HANDLE handle;
char buffer[1024*2];
int length;
str_format(buffer, sizeof(buffer), "%s/*", dir);
handle = FindFirstFileA(buffer, &finddata);
if (handle == INVALID_HANDLE_VALUE)
return 0;
str_format(buffer, sizeof(buffer), "%s/", dir);
length = str_length(buffer);
/* add all the entries */
do
{
str_copy(buffer+length, finddata.cFileName, (int)sizeof(buffer)-length);
if(cb(finddata.cFileName, fs_is_dir(buffer), type, user))
break;
}
while (FindNextFileA(handle, &finddata));
FindClose(handle);
return 0;
#else
struct dirent *entry;
char buffer[1024*2];
int length;
DIR *d = opendir(dir);
if(!d)
return 0;
str_format(buffer, sizeof(buffer), "%s/", dir);
length = str_length(buffer);
while((entry = readdir(d)) != NULL)
{
str_copy(buffer+length, entry->d_name, (int)sizeof(buffer)-length);
if(cb(entry->d_name, fs_is_dir(buffer), type, user))
break;
}
/* close the directory and return */
closedir(d);
return 0;
#endif
}
int fs_storage_path(const char *appname, char *path, int max)
{
#if defined(CONF_FAMILY_WINDOWS)
char *home = getenv("APPDATA");
if(!home)
return -1;
_snprintf(path, max, "%s/%s", home, appname);
return 0;
#else
char *home = getenv("HOME");
#if !defined(CONF_PLATFORM_MACOSX)
int i;
#endif
if(!home)
return -1;
#if defined(CONF_PLATFORM_MACOSX)
snprintf(path, max, "%s/Library/Application Support/%s", home, appname);
#else
snprintf(path, max, "%s/.%s", home, appname);
for(i = strlen(home)+2; path[i]; i++)
path[i] = tolower(path[i]);
#endif
return 0;
#endif
}
int fs_makedir(const char *path)
{
#if defined(CONF_FAMILY_WINDOWS)
if(_mkdir(path) == 0)
return 0;
if(errno == EEXIST)
return 0;
return -1;
#else
if(mkdir(path, 0755) == 0)
return 0;
if(errno == EEXIST)
return 0;
return -1;
#endif
}
int fs_is_dir(const char *path)
{
#if defined(CONF_FAMILY_WINDOWS)
/* TODO: do this smarter */
WIN32_FIND_DATA finddata;
HANDLE handle;
char buffer[1024*2];
str_format(buffer, sizeof(buffer), "%s/*", path);
if ((handle = FindFirstFileA(buffer, &finddata)) == INVALID_HANDLE_VALUE)
return 0;
FindClose(handle);
return 1;
#else
struct stat sb;
if (stat(path, &sb) == -1)
return 0;
if (S_ISDIR(sb.st_mode))
return 1;
else
return 0;
#endif
}
int fs_chdir(const char *path)
{
if(fs_is_dir(path))
{
if(chdir(path))
return 1;
else
return 0;
}
else
return 1;
}
char *fs_getcwd(char *buffer, int buffer_size)
{
if(buffer == 0)
return 0;
#if defined(CONF_FAMILY_WINDOWS)
return _getcwd(buffer, buffer_size);
#else
return getcwd(buffer, buffer_size);
#endif
}
int fs_parent_dir(char *path)
{
char *parent = 0;
for(; *path; ++path)
{
if(*path == '/' || *path == '\\')
parent = path;
}
if(parent)
{
*parent = 0;
return 0;
}
return 1;
}
int fs_remove(const char *filename)
{
if(remove(filename) != 0)
return 1;
return 0;
}
int fs_rename(const char *oldname, const char *newname)
{
if(rename(oldname, newname) != 0)
return 1;
return 0;
}
void swap_endian(void *data, unsigned elem_size, unsigned num)
{
char *src = (char*) data;
char *dst = src + (elem_size - 1);
while(num)
{
unsigned n = elem_size>>1;
char tmp;
while(n)
{
tmp = *src;
*src = *dst;
*dst = tmp;
src++;
dst--;
n--;
}
src = src + (elem_size>>1);
dst = src + (elem_size - 1);
num--;
}
}
int net_socket_read_wait(NETSOCKET sock, int time)
{
struct timeval tv;
fd_set readfds;
int sockid;
tv.tv_sec = 0;
tv.tv_usec = 1000*time;
sockid = 0;
FD_ZERO(&readfds);
if(sock.ipv4sock >= 0)
{
FD_SET(sock.ipv4sock, &readfds);
sockid = sock.ipv4sock;
}
if(sock.ipv6sock >= 0)
{
FD_SET(sock.ipv6sock, &readfds);
if(sock.ipv6sock > sockid)
sockid = sock.ipv6sock;
}
/* don't care about writefds and exceptfds */
select(sockid+1, &readfds, NULL, NULL, &tv);
if(sock.ipv4sock >= 0 && FD_ISSET(sock.ipv4sock, &readfds))
return 1;
if(sock.ipv6sock >= 0 && FD_ISSET(sock.ipv6sock, &readfds))
return 1;
return 0;
}
unsigned time_timestamp()
{
return time(0);
}
void str_append(char *dst, const char *src, int dst_size)
{
int s = strlen(dst);
int i = 0;
while(s < dst_size)
{
dst[s] = src[i];
if(!src[i]) /* check for null termination */
break;
s++;
i++;
}
dst[dst_size-1] = 0; /* assure null termination */
}
void str_copy(char *dst, const char *src, int dst_size)
{
strncpy(dst, src, dst_size);
dst[dst_size-1] = 0; /* assure null termination */
}
int str_length(const char *str)
{
return (int)strlen(str);
}
void str_format(char *buffer, int buffer_size, const char *format, ...)
{
#if defined(CONF_FAMILY_WINDOWS)
va_list ap;
va_start(ap, format);
_vsnprintf(buffer, buffer_size, format, ap);
va_end(ap);
#else
va_list ap;
va_start(ap, format);
vsnprintf(buffer, buffer_size, format, ap);
va_end(ap);
#endif
buffer[buffer_size-1] = 0; /* assure null termination */
}
/* makes sure that the string only contains the characters between 32 and 127 */
void str_sanitize_strong(char *str_in)
{
unsigned char *str = (unsigned char *)str_in;
while(*str)
{
*str &= 0x7f;
if(*str < 32)
*str = 32;
str++;
}
}
/* makes sure that the string only contains the characters between 32 and 255 */
void str_sanitize_cc(char *str_in)
{
unsigned char *str = (unsigned char *)str_in;
while(*str)
{
if(*str < 32)
*str = ' ';
str++;
}
}
/* makes sure that the string only contains the characters between 32 and 255 + \r\n\t */
void str_sanitize(char *str_in)
{
unsigned char *str = (unsigned char *)str_in;
while(*str)
{
if(*str < 32 && !(*str == '\r') && !(*str == '\n') && !(*str == '\t'))
*str = ' ';
str++;
}
}
char *str_skip_to_whitespace(char *str)
{
while(*str && (*str != ' ' && *str != '\t' && *str != '\n'))
str++;
return str;
}
char *str_skip_whitespaces(char *str)
{
while(*str && (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r'))
str++;
return str;
}
/* case */
int str_comp_nocase(const char *a, const char *b)
{
#if defined(CONF_FAMILY_WINDOWS)
return _stricmp(a,b);
#else
return strcasecmp(a,b);
#endif
}
int str_comp_nocase_num(const char *a, const char *b, const int num)
{
#if defined(CONF_FAMILY_WINDOWS)
return _strnicmp(a, b, num);
#else
return strncasecmp(a, b, num);
#endif
}
int str_comp(const char *a, const char *b)
{
return strcmp(a, b);
}
int str_comp_num(const char *a, const char *b, const int num)
{
return strncmp(a, b, num);
}
int str_comp_filenames(const char *a, const char *b)
{
int result;
for(; *a && *b; ++a, ++b)
{
if(*a >= '0' && *a <= '9' && *b >= '0' && *b <= '9')
{
result = 0;
do
{
if(!result)
result = *a - *b;
++a; ++b;
}
while(*a >= '0' && *a <= '9' && *b >= '0' && *b <= '9');
if(*a >= '0' && *a <= '9')
return 1;
else if(*b >= '0' && *b <= '9')
return -1;
else if(result)
return result;
}
if(*a != *b)
break;
}
return *a - *b;
}
const char *str_find_nocase(const char *haystack, const char *needle)
{
while(*haystack) /* native implementation */
{
const char *a = haystack;
const char *b = needle;
while(*a && *b && tolower(*a) == tolower(*b))
{
a++;
b++;
}
if(!(*b))
return haystack;
haystack++;
}
return 0;
}
const char *str_find(const char *haystack, const char *needle)
{
while(*haystack) /* native implementation */
{
const char *a = haystack;
const char *b = needle;
while(*a && *b && *a == *b)
{
a++;
b++;
}
if(!(*b))
return haystack;
haystack++;
}
return 0;
}
void str_hex(char *dst, int dst_size, const void *data, int data_size)
{
static const char hex[] = "0123456789ABCDEF";
int b;
for(b = 0; b < data_size && b < dst_size/4-4; b++)
{
dst[b*3] = hex[((const unsigned char *)data)[b]>>4];
dst[b*3+1] = hex[((const unsigned char *)data)[b]&0xf];
dst[b*3+2] = ' ';
dst[b*3+3] = 0;
}
}
void str_timestamp(char *buffer, int buffer_size)
{
time_t time_data;
struct tm *time_info;
time(&time_data);
time_info = localtime(&time_data);
strftime(buffer, buffer_size, "%Y-%m-%d_%H-%M-%S", time_info);
buffer[buffer_size-1] = 0; /* assure null termination */
}
int mem_comp(const void *a, const void *b, int size)
{
return memcmp(a,b,size);
}
const MEMSTATS *mem_stats()
{
return &memory_stats;
}
void net_stats(NETSTATS *stats_inout)
{
*stats_inout = network_stats;
}
void gui_messagebox(const char *title, const char *message)
{
#if defined(CONF_PLATFORM_MACOSX)
DialogRef theItem;
DialogItemIndex itemIndex;
/* FIXME: really needed? can we rely on glfw? */
/* HACK - get events without a bundle */
ProcessSerialNumber psn;
GetCurrentProcess(&psn);
TransformProcessType(&psn,kProcessTransformToForegroundApplication);
SetFrontProcess(&psn);
/* END HACK */
CreateStandardAlert(kAlertStopAlert,
CFStringCreateWithCString(NULL, title, kCFStringEncodingASCII),
CFStringCreateWithCString(NULL, message, kCFStringEncodingASCII),
NULL,
&theItem);
RunStandardAlert(theItem, NULL, &itemIndex);
#elif defined(CONF_FAMILY_UNIX)
static char cmd[1024];
int err;
/* use xmessage which is available on nearly every X11 system */
snprintf(cmd, sizeof(cmd), "xmessage -center -title '%s' '%s'",
title,
message);
err = system(cmd);
dbg_msg("gui/msgbox", "result = %i", err);
#elif defined(CONF_FAMILY_WINDOWS)
MessageBox(NULL,
message,
title,
MB_ICONEXCLAMATION | MB_OK);
#else
/* this is not critical */
#warning not implemented
#endif
}
int str_isspace(char c) { return c == ' ' || c == '\n' || c == '\t'; }
char str_uppercase(char c)
{
if(c >= 'a' && c <= 'z')
return 'A' + (c-'a');
return c;
}
int str_toint(const char *str) { return atoi(str); }
float str_tofloat(const char *str) { return atof(str); }
static int str_utf8_isstart(char c)
{
if((c&0xC0) == 0x80) /* 10xxxxxx */
return 0;
return 1;
}
int str_utf8_rewind(const char *str, int cursor)
{
while(cursor)
{
cursor--;
if(str_utf8_isstart(*(str + cursor)))
break;
}
return cursor;
}
int str_utf8_forward(const char *str, int cursor)
{
const char *buf = str + cursor;
if(!buf[0])
return cursor;
if((*buf&0x80) == 0x0) /* 0xxxxxxx */
return cursor+1;
else if((*buf&0xE0) == 0xC0) /* 110xxxxx */
{
if(!buf[1]) return cursor+1;
return cursor+2;
}
else if((*buf & 0xF0) == 0xE0) /* 1110xxxx */
{
if(!buf[1]) return cursor+1;
if(!buf[2]) return cursor+2;
return cursor+3;
}
else if((*buf & 0xF8) == 0xF0) /* 11110xxx */
{
if(!buf[1]) return cursor+1;
if(!buf[2]) return cursor+2;
if(!buf[3]) return cursor+3;
return cursor+4;
}
/* invalid */
return cursor+1;
}
int str_utf8_encode(char *ptr, int chr)
{
/* encode */
if(chr <= 0x7F)
{
ptr[0] = (char)chr;
return 1;
}
else if(chr <= 0x7FF)
{
ptr[0] = 0xC0|((chr>>6)&0x1F);
ptr[1] = 0x80|(chr&0x3F);
return 2;
}
else if(chr <= 0xFFFF)
{
ptr[0] = 0xE0|((chr>>12)&0x0F);
ptr[1] = 0x80|((chr>>6)&0x3F);
ptr[2] = 0x80|(chr&0x3F);
return 3;
}
else if(chr <= 0x10FFFF)
{
ptr[0] = 0xF0|((chr>>18)&0x07);
ptr[1] = 0x80|((chr>>12)&0x3F);
ptr[2] = 0x80|((chr>>6)&0x3F);
ptr[3] = 0x80|(chr&0x3F);
return 4;
}
return 0;
}
int str_utf8_decode(const char **ptr)
{
const char *buf = *ptr;
int ch = 0;
do
{
if((*buf&0x80) == 0x0) /* 0xxxxxxx */
{
ch = *buf;
buf++;
}
else if((*buf&0xE0) == 0xC0) /* 110xxxxx */
{
ch = (*buf++ & 0x3F) << 6; if(!(*buf)) break;
ch += (*buf++ & 0x3F);
if(ch == 0) ch = -1;
}
else if((*buf & 0xF0) == 0xE0) /* 1110xxxx */
{
ch = (*buf++ & 0x1F) << 12; if(!(*buf)) break;
ch += (*buf++ & 0x3F) << 6; if(!(*buf)) break;
ch += (*buf++ & 0x3F);
if(ch == 0) ch = -1;
}
else if((*buf & 0xF8) == 0xF0) /* 11110xxx */
{
ch = (*buf++ & 0x0F) << 18; if(!(*buf)) break;
ch += (*buf++ & 0x3F) << 12; if(!(*buf)) break;
ch += (*buf++ & 0x3F) << 6; if(!(*buf)) break;
ch += (*buf++ & 0x3F);
if(ch == 0) ch = -1;
}
else
{
/* invalid */
buf++;
break;
}
*ptr = buf;
return ch;
} while(0);
/* out of bounds */
*ptr = buf;
return -1;
}
int str_utf8_check(const char *str)
{
while(*str)
{
if((*str&0x80) == 0x0)
str++;
else if((*str&0xE0) == 0xC0 && (*(str+1)&0xC0) == 0x80)
str += 2;
else if((*str&0xF0) == 0xE0 && (*(str+1)&0xC0) == 0x80 && (*(str+2)&0xC0) == 0x80)
str += 3;
else if((*str&0xF8) == 0xF0 && (*(str+1)&0xC0) == 0x80 && (*(str+2)&0xC0) == 0x80 && (*(str+3)&0xC0) == 0x80)
str += 4;
else
return 0;
}
return 1;
}
unsigned str_quickhash(const char *str)
{
unsigned hash = 5381;
for(; *str; str++)
hash = ((hash << 5) + hash) + (*str); /* hash * 33 + c */
return hash;
}
#if defined(__cplusplus)
}
#endif
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