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xrdp-proprietary/common/os_calls.c

2385 lines
47 KiB

/*
Copyright (c) 2004-2012 Jay Sorg
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
generic operating system calls
put all the os / arch define in here you want
*/
#if defined(HAVE_CONFIG_H)
#include "config_ac.h"
#endif
#if defined(_WIN32)
#include <windows.h>
#include <winsock.h>
#else
/* fix for solaris 10 with gcc 3.3.2 problem */
#if defined(sun) || defined(__sun)
#define ctid_t id_t
#endif
#include <unistd.h>
#include <errno.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <dlfcn.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <signal.h>
#include <fcntl.h>
#include <pwd.h>
#include <time.h>
#include <grp.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <locale.h>
#include "os_calls.h"
#include "arch.h"
/* for clearenv() */
#if defined(_WIN32)
#else
extern char** environ;
#endif
/* for solaris */
#if !defined(PF_LOCAL)
#define PF_LOCAL AF_UNIX
#endif
#if !defined(INADDR_NONE)
#define INADDR_NONE ((unsigned long)-1)
#endif
static char g_temp_base[128] = "";
static char g_temp_base_org[128] = "";
/*****************************************************************************/
int APP_CC
g_rm_temp_dir(void)
{
if (g_temp_base[0] != 0)
{
if (!g_remove_dir(g_temp_base))
{
printf("g_rm_temp_dir: removing temp directory [%s] failed\n", g_temp_base);
}
g_temp_base[0] = 0;
}
return 0;
}
/*****************************************************************************/
int APP_CC
g_mk_temp_dir(const char* app_name)
{
if (app_name != 0)
{
if (app_name[0] != 0)
{
if (!g_directory_exist("/tmp/.xrdp"))
{
if (!g_create_dir("/tmp/.xrdp"))
{
printf("g_mk_temp_dir: g_create_dir failed\n");
return 1;
}
g_chmod_hex("/tmp/.xrdp", 0x1777);
}
snprintf(g_temp_base, sizeof(g_temp_base),
"/tmp/.xrdp/%s-XXXXXX", app_name);
snprintf(g_temp_base_org, sizeof(g_temp_base_org),
"/tmp/.xrdp/%s-XXXXXX", app_name);
if (mkdtemp(g_temp_base) == 0)
{
printf("g_mk_temp_dir: mkdtemp failed [%s]\n", g_temp_base);
return 1;
}
}
else
{
printf("g_mk_temp_dir: bad app name\n");
return 1;
}
}
else
{
if (g_temp_base_org[0] == 0)
{
printf("g_mk_temp_dir: g_temp_base_org not set\n");
return 1;
}
g_strncpy(g_temp_base, g_temp_base_org, 127);
if (mkdtemp(g_temp_base) == 0)
{
printf("g_mk_temp_dir: mkdtemp failed [%s]\n", g_temp_base);
}
}
return 0;
}
/*****************************************************************************/
void APP_CC
g_init(const char* app_name)
{
#if defined(_WIN32)
WSADATA wsadata;
WSAStartup(2, &wsadata);
#endif
setlocale(LC_CTYPE, "");
g_mk_temp_dir(app_name);
}
/*****************************************************************************/
void APP_CC
g_deinit(void)
{
#if defined(_WIN32)
WSACleanup();
#endif
g_rm_temp_dir();
}
/*****************************************************************************/
/* allocate memory, returns a pointer to it, size bytes are allocated,
if zero is non zero, each byte will be set to zero */
void* APP_CC
g_malloc(int size, int zero)
{
char* rv;
rv = (char*)malloc(size);
if (zero)
{
if (rv != 0)
{
memset(rv, 0, size);
}
}
return rv;
}
/*****************************************************************************/
/* free the memory pointed to by ptr, ptr can be zero */
void APP_CC
g_free(void* ptr)
{
if (ptr != 0)
{
free(ptr);
}
}
/*****************************************************************************/
/* output text to stdout, try to use g_write / g_writeln instead to avoid
linux / windows EOL problems */
void DEFAULT_CC
g_printf(const char* format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
/*****************************************************************************/
void DEFAULT_CC
g_sprintf(char* dest, const char* format, ...)
{
va_list ap;
va_start(ap, format);
vsprintf(dest, format, ap);
va_end(ap);
}
/*****************************************************************************/
void DEFAULT_CC
g_snprintf(char* dest, int len, const char* format, ...)
{
va_list ap;
va_start(ap, format);
vsnprintf(dest, len, format, ap);
va_end(ap);
}
/*****************************************************************************/
void DEFAULT_CC
g_writeln(const char* format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
#if defined(_WIN32)
g_printf("\r\n");
#else
g_printf("\n");
#endif
}
/*****************************************************************************/
void DEFAULT_CC
g_write(const char* format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
/*****************************************************************************/
/* produce a hex dump */
void APP_CC
g_hexdump(char* p, int len)
{
unsigned char* line;
int i;
int thisline;
int offset;
line = (unsigned char*)p;
offset = 0;
while (offset < len)
{
g_printf("%04x ", offset);
thisline = len - offset;
if (thisline > 16)
{
thisline = 16;
}
for (i = 0; i < thisline; i++)
{
g_printf("%02x ", line[i]);
}
for (; i < 16; i++)
{
g_printf(" ");
}
for (i = 0; i < thisline; i++)
{
g_printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
}
g_writeln("");
offset += thisline;
line += thisline;
}
}
/*****************************************************************************/
void APP_CC
g_memset(void* ptr, int val, int size)
{
memset(ptr, val, size);
}
/*****************************************************************************/
void APP_CC
g_memcpy(void* d_ptr, const void* s_ptr, int size)
{
memcpy(d_ptr, s_ptr, size);
}
/*****************************************************************************/
int APP_CC
g_getchar(void)
{
return getchar();
}
/*****************************************************************************/
int APP_CC
g_tcp_set_no_delay(int sck)
{
#if defined(_WIN32)
int option_value;
int option_len;
#else
int option_value;
unsigned int option_len;
#endif
option_len = sizeof(option_value);
/* SOL_TCP IPPROTO_TCP */
if (getsockopt(sck, IPPROTO_TCP, TCP_NODELAY, (char*)&option_value,
&option_len) == 0)
{
if (option_value == 0)
{
option_value = 1;
option_len = sizeof(option_value);
setsockopt(sck, IPPROTO_TCP, TCP_NODELAY, (char*)&option_value,
option_len);
}
}
return 0;
}
/*****************************************************************************/
/* returns a newly created socket or -1 on error */
int APP_CC
g_tcp_socket(void)
{
#if defined(_WIN32)
int rv;
int option_value;
int option_len;
#else
int rv;
int option_value;
unsigned int option_len;
#endif
/* in win32 a socket is an unsigned int, in linux, its an int */
rv = (int)socket(PF_INET, SOCK_STREAM, 0);
if (rv < 0)
{
return -1;
}
option_len = sizeof(option_value);
if (getsockopt(rv, SOL_SOCKET, SO_REUSEADDR, (char*)&option_value,
&option_len) == 0)
{
if (option_value == 0)
{
option_value = 1;
option_len = sizeof(option_value);
setsockopt(rv, SOL_SOCKET, SO_REUSEADDR, (char*)&option_value,
option_len);
}
}
option_len = sizeof(option_value);
if (getsockopt(rv, SOL_SOCKET, SO_SNDBUF, (char*)&option_value,
&option_len) == 0)
{
if (option_value < (1024 * 32))
{
option_value = 1024 * 32;
option_len = sizeof(option_value);
setsockopt(rv, SOL_SOCKET, SO_SNDBUF, (char*)&option_value,
option_len);
}
}
return rv;
}
/*****************************************************************************/
int APP_CC
g_tcp_local_socket(void)
{
#if defined(_WIN32)
return 0;
#else
return socket(PF_LOCAL, SOCK_STREAM, 0);
#endif
}
/*****************************************************************************/
void APP_CC
g_tcp_close(int sck)
{
if (sck == 0)
{
return;
}
#if defined(_WIN32)
closesocket(sck);
#else
close(sck);
#endif
}
/*****************************************************************************/
/* returns error, zero is good */
int APP_CC
g_tcp_connect(int sck, const char* address, const char* port)
{
struct sockaddr_in s;
struct hostent* h;
g_memset(&s, 0, sizeof(struct sockaddr_in));
s.sin_family = AF_INET;
s.sin_port = htons((tui16)atoi(port));
s.sin_addr.s_addr = inet_addr(address);
if (s.sin_addr.s_addr == INADDR_NONE)
{
h = gethostbyname(address);
if (h != 0)
{
if (h->h_name != 0)
{
if (h->h_addr_list != 0)
{
if ((*(h->h_addr_list)) != 0)
{
s.sin_addr.s_addr = *((int*)(*(h->h_addr_list)));
}
}
}
}
}
return connect(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
}
/*****************************************************************************/
/* returns error, zero is good */
int APP_CC
g_tcp_local_connect(int sck, const char* port)
{
#if defined(_WIN32)
return -1;
#else
struct sockaddr_un s;
memset(&s, 0, sizeof(struct sockaddr_un));
s.sun_family = AF_UNIX;
strcpy(s.sun_path, port);
return connect(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_un));
#endif
}
/*****************************************************************************/
int APP_CC
g_tcp_set_non_blocking(int sck)
{
unsigned long i;
#if defined(_WIN32)
i = 1;
ioctlsocket(sck, FIONBIO, &i);
#else
i = fcntl(sck, F_GETFL);
i = i | O_NONBLOCK;
fcntl(sck, F_SETFL, i);
#endif
return 0;
}
/*****************************************************************************/
/* returns error, zero is good */
int APP_CC
g_tcp_bind(int sck, char* port)
{
struct sockaddr_in s;
memset(&s, 0, sizeof(struct sockaddr_in));
s.sin_family = AF_INET;
s.sin_port = htons((tui16)atoi(port));
s.sin_addr.s_addr = INADDR_ANY;
return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
}
/*****************************************************************************/
int APP_CC
g_tcp_local_bind(int sck, char* port)
{
#if defined(_WIN32)
return -1;
#else
struct sockaddr_un s;
memset(&s, 0, sizeof(struct sockaddr_un));
s.sun_family = AF_UNIX;
strcpy(s.sun_path, port);
return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_un));
#endif
}
/*****************************************************************************/
/* returns error, zero is good */
int APP_CC
g_tcp_bind_address(int sck, char* port, const char* address)
{
struct sockaddr_in s;
memset(&s, 0, sizeof(struct sockaddr_in));
s.sin_family = AF_INET;
s.sin_port = htons((tui16)atoi(port));
s.sin_addr.s_addr = INADDR_ANY;
if (inet_aton(address, &s.sin_addr) < 0)
{
return -1; /* bad address */
}
return bind(sck, (struct sockaddr*)&s, sizeof(struct sockaddr_in));
}
/*****************************************************************************/
/* returns error, zero is good */
int APP_CC
g_tcp_listen(int sck)
{
return listen(sck, 2);
}
/*****************************************************************************/
int APP_CC
g_tcp_accept(int sck)
{
struct sockaddr_in s;
#if defined(_WIN32)
signed int i;
#else
unsigned int i;
#endif
i = sizeof(struct sockaddr_in);
memset(&s, 0, i);
return accept(sck, (struct sockaddr*)&s, &i);
}
/*****************************************************************************/
void APP_CC
g_write_ip_address(int rcv_sck, char* ip_address, int bytes)
{
struct sockaddr_in s;
struct in_addr in;
int len;
int ip_port;
int ok;
ok = 0;
memset(&s, 0, sizeof(s));
len = sizeof(s);
if (getpeername(rcv_sck,(struct sockaddr*)&s, &len) == 0)
{
memset(&in, 0, sizeof(in));
in.s_addr = s.sin_addr.s_addr;
ip_port = ntohs(s.sin_port);
if (ip_port != 0)
{
ok = 1;
snprintf(ip_address, bytes, "%s:%d - socket: %d", inet_ntoa(in),
ip_port, rcv_sck);
}
}
if (!ok)
{
snprintf(ip_address, bytes, "NULL:NULL - socket: %d", rcv_sck);
}
}
/*****************************************************************************/
void APP_CC
g_sleep(int msecs)
{
#if defined(_WIN32)
Sleep(msecs);
#else
usleep(msecs * 1000);
#endif
}
/*****************************************************************************/
int APP_CC
g_tcp_last_error_would_block(int sck)
{
#if defined(_WIN32)
return WSAGetLastError() == WSAEWOULDBLOCK;
#else
return (errno == EWOULDBLOCK) || (errno == EAGAIN) || (errno == EINPROGRESS);
#endif
}
/*****************************************************************************/
int APP_CC
g_tcp_recv(int sck, void* ptr, int len, int flags)
{
#if defined(_WIN32)
return recv(sck, (char*)ptr, len, flags);
#else
return recv(sck, ptr, len, flags);
#endif
}
/*****************************************************************************/
int APP_CC
g_tcp_send(int sck, const void* ptr, int len, int flags)
{
#if defined(_WIN32)
return send(sck, (const char*)ptr, len, flags);
#else
return send(sck, ptr, len, flags);
#endif
}
/*****************************************************************************/
/* returns boolean */
int APP_CC
g_tcp_socket_ok(int sck)
{
#if defined(_WIN32)
int opt;
int opt_len;
#else
int opt;
unsigned int opt_len;
#endif
opt_len = sizeof(opt);
if (getsockopt(sck, SOL_SOCKET, SO_ERROR, (char*)(&opt), &opt_len) == 0)
{
if (opt == 0)
{
return 1;
}
}
return 0;
}
/*****************************************************************************/
/* wait 'millis' milliseconds for the socket to be able to write */
/* returns boolean */
int APP_CC
g_tcp_can_send(int sck, int millis)
{
fd_set wfds;
struct timeval time;
int rv;
time.tv_sec = millis / 1000;
time.tv_usec = (millis * 1000) % 1000000;
FD_ZERO(&wfds);
if (sck > 0)
{
FD_SET(((unsigned int)sck), &wfds);
rv = select(sck + 1, 0, &wfds, 0, &time);
if (rv > 0)
{
return g_tcp_socket_ok(sck);
}
}
return 0;
}
/*****************************************************************************/
/* wait 'millis' milliseconds for the socket to be able to receive */
/* returns boolean */
int APP_CC
g_tcp_can_recv(int sck, int millis)
{
fd_set rfds;
struct timeval time;
int rv;
time.tv_sec = millis / 1000;
time.tv_usec = (millis * 1000) % 1000000;
FD_ZERO(&rfds);
if (sck > 0)
{
FD_SET(((unsigned int)sck), &rfds);
rv = select(sck + 1, &rfds, 0, 0, &time);
if (rv > 0)
{
return g_tcp_socket_ok(sck);
}
}
return 0;
}
/*****************************************************************************/
int APP_CC
g_tcp_select(int sck1, int sck2)
{
fd_set rfds;
struct timeval time;
int max = 0;
int rv = 0;
g_memset(&rfds,0,sizeof(fd_set));
g_memset(&time,0,sizeof(struct timeval));
time.tv_sec = 0;
time.tv_usec = 0;
FD_ZERO(&rfds);
if (sck1 > 0)
{
FD_SET(((unsigned int)sck1), &rfds);
}
if (sck2 > 0)
{
FD_SET(((unsigned int)sck2), &rfds);
}
max = sck1;
if (sck2 > max)
{
max = sck2;
}
rv = select(max + 1, &rfds, 0, 0, &time);
if (rv > 0)
{
rv = 0;
if (FD_ISSET(((unsigned int)sck1), &rfds))
{
rv = rv | 1;
}
if (FD_ISSET(((unsigned int)sck2), &rfds))
{
rv = rv | 2;
}
}
else
{
rv = 0;
}
return rv;
}
/*****************************************************************************/
/* returns 0 on error */
tbus APP_CC
g_create_wait_obj(char* name)
{
#ifdef _WIN32
tbus obj;
obj = (tbus)CreateEvent(0, 1, 0, name);
return obj;
#else
tbus obj;
struct sockaddr_un sa;
size_t len;
tbus sck;
int i;
int safety;
int unnamed;
if (g_temp_base[0] == 0)
{
return 0;
}
sck = socket(PF_UNIX, SOCK_DGRAM, 0);
if (sck < 0)
{
return 0;
}
safety = 0;
g_memset(&sa, 0, sizeof(sa));
sa.sun_family = AF_UNIX;
unnamed = 1;
if (name != 0)
{
if (name[0] != 0)
{
unnamed = 0;
}
}
if (unnamed)
{
do
{
if (safety > 100)
{
break;
}
safety++;
g_random((char*)&i, sizeof(i));
len = sizeof(sa.sun_path);
g_snprintf(sa.sun_path, len, "%s/auto_%8.8x", g_temp_base, i);
len = sizeof(sa);
} while (bind(sck, (struct sockaddr*)&sa, len) < 0);
}
else
{
do
{
if (safety > 100)
{
break;
}
safety++;
g_random((char*)&i, sizeof(i));
len = sizeof(sa.sun_path);
g_snprintf(sa.sun_path, len, "%s/%s_%8.8x", g_temp_base, name, i);
len = sizeof(sa);
} while (bind(sck, (struct sockaddr*)&sa, len) < 0);
}
obj = (tbus)sck;
return obj;
#endif
}
/*****************************************************************************/
/* returns 0 on error */
tbus APP_CC
g_create_wait_obj_from_socket(tbus socket, int write)
{
#ifdef _WIN32
/* Create and return corresponding event handle for WaitForMultipleObjets */
WSAEVENT event;
long lnetevent = 0;
g_memset(&event,0,sizeof(WSAEVENT));
event = WSACreateEvent();
lnetevent = (write ? FD_WRITE : FD_READ) | FD_CLOSE;
if (WSAEventSelect(socket, event, lnetevent) == 0)
{
return (tbus)event;
}
else
{
return 0;
}
#else
return socket;
#endif
}
/*****************************************************************************/
void APP_CC
g_delete_wait_obj_from_socket(tbus wait_obj)
{
#ifdef _WIN32
if (wait_obj == 0)
{
return;
}
WSACloseEvent((HANDLE)wait_obj);
#else
#endif
}
/*****************************************************************************/
/* returns error */
int APP_CC
g_set_wait_obj(tbus obj)
{
#ifdef _WIN32
if (obj == 0)
{
return 0;
}
SetEvent((HANDLE)obj);
return 0;
#else
socklen_t sa_size;
int s;
struct sockaddr_un sa;
if (obj == 0)
{
return 0;
}
if (g_tcp_can_recv((int)obj, 0))
{
/* already signalled */
return 0;
}
sa_size = sizeof(sa);
if (getsockname((int)obj, (struct sockaddr*)&sa, &sa_size) < 0)
{
return 1;
}
s = socket(PF_UNIX, SOCK_DGRAM, 0);
if (s < 0)
{
return 1;
}
sendto(s, "sig", 4, 0, (struct sockaddr*)&sa, sa_size);
close(s);
return 0;
#endif
}
/*****************************************************************************/
/* returns error */
int APP_CC
g_reset_wait_obj(tbus obj)
{
#ifdef _WIN32
if (obj == 0)
{
return 0;
}
ResetEvent((HANDLE)obj);
return 0;
#else
char buf[64];
if (obj == 0)
{
return 0;
}
while (g_tcp_can_recv((int)obj, 0))
{
recvfrom((int)obj, &buf, 64, 0, 0, 0);
}
return 0;
#endif
}
/*****************************************************************************/
/* returns boolean */
int APP_CC
g_is_wait_obj_set(tbus obj)
{
#ifdef _WIN32
if (obj == 0)
{
return 0;
}
if (WaitForSingleObject((HANDLE)obj, 0) == WAIT_OBJECT_0)
{
return 1;
}
return 0;
#else
if (obj == 0)
{
return 0;
}
return g_tcp_can_recv((int)obj, 0);
#endif
}
/*****************************************************************************/
/* returns error */
int APP_CC
g_delete_wait_obj(tbus obj)
{
#ifdef _WIN32
if (obj == 0)
{
return 0;
}
/* Close event handle */
CloseHandle((HANDLE)obj);
return 0;
#else
socklen_t sa_size;
struct sockaddr_un sa;
if (obj == 0)
{
return 0;
}
sa_size = sizeof(sa);
if (getsockname((int)obj, (struct sockaddr*)&sa, &sa_size) < 0)
{
return 1;
}
close((int)obj);
unlink(sa.sun_path);
return 0;
#endif
}
/*****************************************************************************/
/* returns error */
/* close but do not delete the wait obj, used after fork */
int APP_CC
g_close_wait_obj(tbus obj)
{
#ifdef _WIN32
#else
close((int)obj);
#endif
return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
g_obj_wait(tbus* read_objs, int rcount, tbus* write_objs, int wcount,
int mstimeout)
{
#ifdef _WIN32
HANDLE handles[256];
DWORD count;
DWORD error;
int j;
int i;
j = 0;
count = rcount + wcount;
for (i = 0; i < rcount; i++)
{
handles[j++] = (HANDLE)(read_objs[i]);
}
for (i = 0; i < wcount; i++)
{
handles[j++] = (HANDLE)(write_objs[i]);
}
if (mstimeout < 1)
{
mstimeout = INFINITE;
}
error = WaitForMultipleObjects(count, handles, FALSE, mstimeout);
if (error == WAIT_FAILED)
{
return 1;
}
return 0;
#else
fd_set rfds;
fd_set wfds;
struct timeval time;
struct timeval* ptime = (struct timeval *)NULL;
int i = 0;
int res = 0;
int max = 0;
int sck = 0;
g_memset(&rfds,0,sizeof(fd_set));
g_memset(&wfds,0,sizeof(fd_set));
g_memset(&time,0,sizeof(struct timeval));
max = 0;
if (mstimeout < 1)
{
ptime = (struct timeval *)NULL;
}
else
{
time.tv_sec = mstimeout / 1000;
time.tv_usec = (mstimeout % 1000) * 1000;
ptime = &time;
}
FD_ZERO(&rfds);
FD_ZERO(&wfds);
/*Find the highest descriptor number in read_obj */
if(read_objs!=NULL){
for (i = 0; i < rcount; i++)
{
sck = (int)(read_objs[i]);
if (sck > 0) {
FD_SET(sck, &rfds);
if (sck > max)
{
max = sck; /*max holds the highest socket/descriptor number */
}
}
}
}else if(rcount>0){
g_writeln("Programming error read_objs is null");
return 1; /*error*/
}
if(write_objs!=NULL){
for (i = 0; i < wcount; i++)
{
sck = (int)(write_objs[i]);
if (sck > 0) {
FD_SET(sck, &wfds);
if (sck > max)
{
max = sck; /*max holds the highest socket/descriptor number */
}
}
}
}else if(wcount>0){
g_writeln("Programming error write_objs is null");
return 1; /*error*/
}
res = select(max + 1, &rfds, &wfds, 0, ptime);
if (res < 0)
{
/* these are not really errors */
if ((errno == EAGAIN) ||
(errno == EWOULDBLOCK) ||
(errno == EINPROGRESS) ||
(errno == EINTR)) /* signal occurred */
{
return 0;
}
return 1; /*error*/
}
return 0;
#endif
}
/*****************************************************************************/
void APP_CC
g_random(char* data, int len)
{
#if defined(_WIN32)
int index;
srand(g_time1());
for (index = 0; index < len; index++)
{
data[index] = (char)rand(); /* rand returns a number between 0 and
RAND_MAX */
}
#else
int fd;
memset(data, 0x44, len);
fd = open("/dev/urandom", O_RDONLY);
if (fd == -1)
{
fd = open("/dev/random", O_RDONLY);
}
if (fd != -1)
{
if (read(fd, data, len) != len)
{
}
close(fd);
}
#endif
}
/*****************************************************************************/
int APP_CC
g_abs(int i)
{
return abs(i);
}
/*****************************************************************************/
int APP_CC
g_memcmp(const void* s1, const void* s2, int len)
{
return memcmp(s1, s2, len);
}
/*****************************************************************************/
/* returns -1 on error, else return handle or file descriptor */
int APP_CC
g_file_open(const char* file_name)
{
#if defined(_WIN32)
return (int)CreateFileA(file_name, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
0, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
#else
int rv;
rv = open(file_name, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
if (rv == -1)
{
/* can't open read / write, try to open read only */
rv = open(file_name, O_RDONLY);
}
return rv;
#endif
}
/*****************************************************************************/
/* returns error, always 0 */
int APP_CC
g_file_close(int fd)
{
#if defined(_WIN32)
CloseHandle((HANDLE)fd);
#else
close(fd);
#endif
return 0;
}
/*****************************************************************************/
/* read from file, returns the number of bytes read or -1 on error */
int APP_CC
g_file_read(int fd, char* ptr, int len)
{
#if defined(_WIN32)
if (ReadFile((HANDLE)fd, (LPVOID)ptr, (DWORD)len, (LPDWORD)&len, 0))
{
return len;
}
else
{
return -1;
}
#else
return read(fd, ptr, len);
#endif
}
/*****************************************************************************/
/* write to file, returns the number of bytes writen or -1 on error */
int APP_CC
g_file_write(int fd, char* ptr, int len)
{
#if defined(_WIN32)
if (WriteFile((HANDLE)fd, (LPVOID)ptr, (DWORD)len, (LPDWORD)&len, 0))
{
return len;
}
else
{
return -1;
}
#else
return write(fd, ptr, len);
#endif
}
/*****************************************************************************/
/* move file pointer, returns offset on success, -1 on failure */
int APP_CC
g_file_seek(int fd, int offset)
{
#if defined(_WIN32)
int rv;
rv = (int)SetFilePointer((HANDLE)fd, offset, 0, FILE_BEGIN);
if (rv == (int)INVALID_SET_FILE_POINTER)
{
return -1;
}
else
{
return rv;
}
#else
return (int)lseek(fd, offset, SEEK_SET);
#endif
}
/*****************************************************************************/
/* do a write lock on a file */
/* return boolean */
int APP_CC
g_file_lock(int fd, int start, int len)
{
#if defined(_WIN32)
return LockFile((HANDLE)fd, start, 0, len, 0);
#else
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
lock.l_start = start;
lock.l_len = len;
if (fcntl(fd, F_SETLK, &lock) == -1)
{
return 0;
}
return 1;
#endif
}
/*****************************************************************************/
/* returns error */
int APP_CC
g_chmod_hex(const char* filename, int flags)
{
#if defined(_WIN32)
return 0;
#else
int fl;
fl = 0;
fl |= (flags & 0x4000) ? S_ISUID : 0;
fl |= (flags & 0x2000) ? S_ISGID : 0;
fl |= (flags & 0x1000) ? S_ISVTX : 0;
fl |= (flags & 0x0400) ? S_IRUSR : 0;
fl |= (flags & 0x0200) ? S_IWUSR : 0;
fl |= (flags & 0x0100) ? S_IXUSR : 0;
fl |= (flags & 0x0040) ? S_IRGRP : 0;
fl |= (flags & 0x0020) ? S_IWGRP : 0;
fl |= (flags & 0x0010) ? S_IXGRP : 0;
fl |= (flags & 0x0004) ? S_IROTH : 0;
fl |= (flags & 0x0002) ? S_IWOTH : 0;
fl |= (flags & 0x0001) ? S_IXOTH : 0;
return chmod(filename, fl);
#endif
}
/*****************************************************************************/
/* returns error, zero is ok */
int APP_CC
g_chown(const char* name, int uid, int gid)
{
return chown(name, uid, gid);
}
/*****************************************************************************/
/* returns error, always zero */
int APP_CC
g_mkdir(const char* dirname)
{
#if defined(_WIN32)
return 0;
#else
mkdir(dirname, S_IRWXU);
return 0;
#endif
}
/*****************************************************************************/
/* gets the current working directory and puts up to maxlen chars in
dirname
always returns 0 */
char* APP_CC
g_get_current_dir(char* dirname, int maxlen)
{
#if defined(_WIN32)
GetCurrentDirectoryA(maxlen, dirname);
return 0;
#else
if (getcwd(dirname, maxlen) == 0)
{
}
return 0;
#endif
}
/*****************************************************************************/
/* returns error, zero on success and -1 on failure */
int APP_CC
g_set_current_dir(char* dirname)
{
#if defined(_WIN32)
if (SetCurrentDirectoryA(dirname))
{
return 0;
}
else
{
return -1;
}
#else
return chdir(dirname);
#endif
}
/*****************************************************************************/
/* returns boolean, non zero if the file exists */
int APP_CC
g_file_exist(const char* filename)
{
#if defined(_WIN32)
return 0; // use FileAge(filename) <> -1
#else
return access(filename, F_OK) == 0;
#endif
}
/*****************************************************************************/
/* returns boolean, non zero if the directory exists */
int APP_CC
g_directory_exist(const char* dirname)
{
#if defined(_WIN32)
return 0; // use GetFileAttributes and check return value
// is not -1 and FILE_ATTRIBUT_DIRECTORY bit is set
#else
struct stat st;
if (stat(dirname, &st) == 0)
{
return S_ISDIR(st.st_mode);
}
else
{
return 0;
}
#endif
}
/*****************************************************************************/
/* returns boolean */
int APP_CC
g_create_dir(const char* dirname)
{
#if defined(_WIN32)
return CreateDirectoryA(dirname, 0); // test this
#else
return mkdir(dirname, (mode_t)-1) == 0;
#endif
}
/*****************************************************************************/
/* will try to create directories up to last / in name
example /tmp/a/b/c/readme.txt will try to create /tmp/a/b/c
returns boolean */
int APP_CC
g_create_path(const char* path)
{
char* pp;
char* sp;
char* copypath;
int status;
status = 1;
copypath = g_strdup(path);
pp = copypath;
sp = strchr(pp, '/');
while (sp != 0)
{
if (sp != pp)
{
*sp = 0;
if (!g_directory_exist(copypath))
{
if (!g_create_dir(copypath))
{
status = 0;
break;
}
}
*sp = '/';
}
pp = sp + 1;
sp = strchr(pp, '/');
}
g_free(copypath);
return status;
}
/*****************************************************************************/
/* returns boolean */
int APP_CC
g_remove_dir(const char* dirname)
{
#if defined(_WIN32)
return RemoveDirectoryA(dirname); // test this
#else
return rmdir(dirname) == 0;
#endif
}
/*****************************************************************************/
/* returns non zero if the file was deleted */
int APP_CC
g_file_delete(const char* filename)
{
#if defined(_WIN32)
return DeleteFileA(filename);
#else
return unlink(filename) != -1;
#endif
}
/*****************************************************************************/
/* returns file size, -1 on error */
int APP_CC
g_file_get_size(const char* filename)
{
#if defined(_WIN32)
return -1;
#else
struct stat st;
if (stat(filename, &st) == 0)
{
return (int)(st.st_size);
}
else
{
return -1;
}
#endif
}
/*****************************************************************************/
/* returns length of text */
int APP_CC
g_strlen(const char* text)
{
if (text == NULL)
{
return 0;
}
return strlen(text);
}
/*****************************************************************************/
/* returns dest */
char* APP_CC
g_strcpy(char* dest, const char* src)
{
if (src == 0 && dest != 0)
{
dest[0] = 0;
return dest;
}
if (dest == 0 || src == 0)
{
return 0;
}
return strcpy(dest, src);
}
/*****************************************************************************/
/* returns dest */
char* APP_CC
g_strncpy(char* dest, const char* src, int len)
{
char* rv;
if (src == 0 && dest != 0)
{
dest[0] = 0;
return dest;
}
if (dest == 0 || src == 0)
{
return 0;
}
rv = strncpy(dest, src, len);
dest[len] = 0;
return rv;
}
/*****************************************************************************/
/* returns dest */
char* APP_CC
g_strcat(char* dest, const char* src)
{
if (dest == 0 || src == 0)
{
return dest;
}
return strcat(dest, src);
}
/*****************************************************************************/
/* if in = 0, return 0 else return newly alloced copy of in */
char* APP_CC
g_strdup(const char* in)
{
int len;
char* p;
if (in == 0)
{
return 0;
}
len = g_strlen(in);
p = (char*)g_malloc(len + 1, 0);
if (p != NULL) {
g_strcpy(p, in);
}
return p;
}
/*****************************************************************************/
int APP_CC
g_strcmp(const char* c1, const char* c2)
{
return strcmp(c1, c2);
}
/*****************************************************************************/
int APP_CC
g_strncmp(const char* c1, const char* c2, int len)
{
return strncmp(c1, c2, len);
}
/*****************************************************************************/
int APP_CC
g_strcasecmp(const char* c1, const char* c2)
{
#if defined(_WIN32)
return stricmp(c1, c2);
#else
return strcasecmp(c1, c2);
#endif
}
/*****************************************************************************/
int APP_CC
g_strncasecmp(const char* c1, const char* c2, int len)
{
#if defined(_WIN32)
return strnicmp(c1, c2, len);
#else
return strncasecmp(c1, c2, len);
#endif
}
/*****************************************************************************/
int APP_CC
g_atoi(const char* str)
{
if (str == 0)
{
return 0;
}
return atoi(str);
}
/*****************************************************************************/
int APP_CC
g_htoi(char* str)
{
int len;
int index;
int rv;
int val;
int shift;
rv = 0;
len = strlen(str);
index = len - 1;
shift = 0;
while (index >= 0)
{
val = 0;
switch (str[index])
{
case '1':
val = 1;
break;
case '2':
val = 2;
break;
case '3':
val = 3;
break;
case '4':
val = 4;
break;
case '5':
val = 5;
break;
case '6':
val = 6;
break;
case '7':
val = 7;
break;
case '8':
val = 8;
break;
case '9':
val = 9;
break;
case 'a':
case 'A':
val = 10;
break;
case 'b':
case 'B':
val = 11;
break;
case 'c':
case 'C':
val = 12;
break;
case 'd':
case 'D':
val = 13;
break;
case 'e':
case 'E':
val = 14;
break;
case 'f':
case 'F':
val = 15;
break;
}
rv = rv | (val << shift);
index--;
shift += 4;
}
return rv;
}
/*****************************************************************************/
int APP_CC
g_pos(char* str, const char* to_find)
{
char* pp;
pp = strstr(str, to_find);
if (pp == 0)
{
return -1;
}
return (pp - str);
}
/*****************************************************************************/
int APP_CC
g_mbstowcs(twchar* dest, const char* src, int n)
{
wchar_t* ldest;
int rv;
ldest = (wchar_t*)dest;
rv = mbstowcs(ldest, src, n);
return rv;
}
/*****************************************************************************/
int APP_CC
g_wcstombs(char* dest, const twchar* src, int n)
{
const wchar_t* lsrc;
int rv;
lsrc = (const wchar_t*)src;
rv = wcstombs(dest, lsrc, n);
return rv;
}
/*****************************************************************************/
/* returns error */
/* trim spaces and tabs, anything <= space */
/* trim_flags 1 trim left, 2 trim right, 3 trim both, 4 trim through */
/* this will always shorten the string or not change it */
int APP_CC
g_strtrim(char* str, int trim_flags)
{
int index;
int len;
int text1_index;
int got_char;
wchar_t* text;
wchar_t* text1;
len = mbstowcs(0, str, 0);
if (len < 1)
{
return 0;
}
if ((trim_flags < 1) || (trim_flags > 4))
{
return 1;
}
text = (wchar_t*)malloc(len * sizeof(wchar_t) + 8);
text1 = (wchar_t*)malloc(len * sizeof(wchar_t) + 8);
text1_index = 0;
mbstowcs(text, str, len + 1);
switch (trim_flags)
{
case 4: /* trim through */
for (index = 0; index < len; index++)
{
if (text[index] > 32)
{
text1[text1_index] = text[index];
text1_index++;
}
}
text1[text1_index] = 0;
break;
case 3: /* trim both */
got_char = 0;
for (index = 0; index < len; index++)
{
if (got_char)
{
text1[text1_index] = text[index];
text1_index++;
}
else
{
if (text[index] > 32)
{
text1[text1_index] = text[index];
text1_index++;
got_char = 1;
}
}
}
text1[text1_index] = 0;
len = text1_index;
/* trim right */
for (index = len - 1; index >= 0; index--)
{
if (text1[index] > 32)
{
break;
}
}
text1_index = index + 1;
text1[text1_index] = 0;
break;
case 2: /* trim right */
/* copy it */
for (index = 0; index < len; index++)
{
text1[text1_index] = text[index];
text1_index++;
}
/* trim right */
for (index = len - 1; index >= 0; index--)
{
if (text1[index] > 32)
{
break;
}
}
text1_index = index + 1;
text1[text1_index] = 0;
break;
case 1: /* trim left */
got_char = 0;
for (index = 0; index < len; index++)
{
if (got_char)
{
text1[text1_index] = text[index];
text1_index++;
}
else
{
if (text[index] > 32)
{
text1[text1_index] = text[index];
text1_index++;
got_char = 1;
}
}
}
text1[text1_index] = 0;
break;
}
wcstombs(str, text1, text1_index + 1);
free(text);
free(text1);
return 0;
}
/*****************************************************************************/
long APP_CC
g_load_library(char* in)
{
#if defined(_WIN32)
return (long)LoadLibraryA(in);
#else
return (long)dlopen(in, RTLD_LOCAL | RTLD_LAZY);
#endif
}
/*****************************************************************************/
int APP_CC
g_free_library(long lib)
{
if (lib == 0)
{
return 0;
}
#if defined(_WIN32)
return FreeLibrary((HMODULE)lib);
#else
return dlclose((void*)lib);
#endif
}
/*****************************************************************************/
/* returns NULL if not found */
void* APP_CC
g_get_proc_address(long lib, const char* name)
{
if (lib == 0)
{
return 0;
}
#if defined(_WIN32)
return GetProcAddress((HMODULE)lib, name);
#else
return dlsym((void*)lib, name);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_system(char* aexec)
{
#if defined(_WIN32)
return 0;
#else
return system(aexec);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
char* APP_CC
g_get_strerror(void)
{
#if defined(_WIN32)
return 0;
#else
return strerror(errno);
#endif
}
/*****************************************************************************/
int APP_CC
g_get_errno(void)
{
#if defined(_WIN32)
return GetLastError();
#else
return errno;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_execvp(const char* p1, char* args[])
{
#if defined(_WIN32)
return 0;
#else
int rv;
g_rm_temp_dir();
rv = execvp(p1, args);
g_mk_temp_dir(0);
return rv;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_execlp3(const char* a1, const char* a2, const char* a3)
{
#if defined(_WIN32)
return 0;
#else
int rv;
g_rm_temp_dir();
rv = execlp(a1, a2, a3, (void*)0);
g_mk_temp_dir(0);
return rv;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_child_stop(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGCHLD, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_hang_up(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGHUP, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_user_interrupt(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGINT, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_kill(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGKILL, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_terminate(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGTERM, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_pipe(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGPIPE, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_signal_usr1(void (*func)(int))
{
#if defined(_WIN32)
#else
signal(SIGUSR1, func);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_fork(void)
{
#if defined(_WIN32)
return 0;
#else
int rv;
rv = fork();
if (rv == 0) /* child */
{
g_mk_temp_dir(0);
}
return rv;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_setgid(int pid)
{
#if defined(_WIN32)
return 0;
#else
return setgid(pid);
#endif
}
/*****************************************************************************/
/* returns error, zero is success, non zero is error */
/* does not work in win32 */
int APP_CC
g_initgroups(const char* user, int gid)
{
#if defined(_WIN32)
return 0;
#else
return initgroups(user, gid);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
/* returns user id */
int APP_CC
g_getuid(void)
{
#if defined(_WIN32)
return 0;
#else
return getuid();
#endif
}
/*****************************************************************************/
/* does not work in win32 */
/* On success, zero is returned. On error, -1 is returned */
int APP_CC
g_setuid(int pid)
{
#if defined(_WIN32)
return 0;
#else
return setuid(pid);
#endif
}
/*****************************************************************************/
/* does not work in win32
returns pid of process that exits or zero if signal occurred */
int APP_CC
g_waitchild(void)
{
#if defined(_WIN32)
return 0;
#else
int wstat;
int rv;
rv = waitpid(0, &wstat, WNOHANG);
if (rv == -1)
{
if (errno == EINTR) /* signal occurred */
{
rv = 0;
}
}
return rv;
#endif
}
/*****************************************************************************/
/* does not work in win32
returns pid of process that exits or zero if signal occurred */
int APP_CC
g_waitpid(int pid)
{
#if defined(_WIN32)
return 0;
#else
int rv = 0;
if (pid < 0) {
rv = -1;
}
else {
rv = waitpid(pid, 0, 0);
if (rv == -1)
{
if (errno == EINTR) /* signal occurred */
{
rv = 0;
}
}
}
return rv;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
void APP_CC
g_clearenv(void)
{
#if defined(_WIN32)
#else
environ = 0;
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_setenv(const char* name, const char* value, int rewrite)
{
#if defined(_WIN32)
return 0;
#else
return setenv(name, value, rewrite);
#endif
}
/*****************************************************************************/
/* does not work in win32 */
char* APP_CC
g_getenv(const char* name)
{
#if defined(_WIN32)
return 0;
#else
return getenv(name);
#endif
}
/*****************************************************************************/
int APP_CC
g_exit(int exit_code)
{
_exit(exit_code);
return 0;
}
/*****************************************************************************/
int APP_CC
g_getpid(void)
{
#if defined(_WIN32)
return (int)GetCurrentProcessId();
#else
return (int)getpid();
#endif
}
/*****************************************************************************/
/* does not work in win32 */
int APP_CC
g_sigterm(int pid)
{
#if defined(_WIN32)
return 0;
#else
return kill(pid, SIGTERM);
#endif
}
/*****************************************************************************/
/* returns 0 if ok */
/* does not work in win32 */
int APP_CC
g_getuser_info(const char* username, int* gid, int* uid, char* shell,
char* dir, char* gecos)
{
#if defined(_WIN32)
return 1;
#else
struct passwd* pwd_1;
pwd_1 = getpwnam(username);
if (pwd_1 != 0)
{
if (gid != 0)
{
*gid = pwd_1->pw_gid;
}
if (uid != 0)
{
*uid = pwd_1->pw_uid;
}
if (dir != 0)
{
g_strcpy(dir, pwd_1->pw_dir);
}
if (shell != 0)
{
g_strcpy(shell, pwd_1->pw_shell);
}
if (gecos != 0)
{
g_strcpy(gecos, pwd_1->pw_gecos);
}
return 0;
}
return 1;
#endif
}
/*****************************************************************************/
/* returns 0 if ok */
/* does not work in win32 */
int APP_CC
g_getgroup_info(const char* groupname, int* gid)
{
#if defined(_WIN32)
return 1;
#else
struct group* g;
g = getgrnam(groupname);
if (g != 0)
{
if (gid != 0)
{
*gid = g->gr_gid;
}
return 0;
}
return 1;
#endif
}
/*****************************************************************************/
/* returns error */
/* if zero is returned, then ok is set */
/* does not work in win32 */
int APP_CC
g_check_user_in_group(const char* username, int gid, int* ok)
{
#if defined(_WIN32)
return 1;
#else
struct group* groups;
int i;
groups = getgrgid(gid);
if (groups == 0)
{
return 1;
}
*ok = 0;
i = 0;
while (0 != groups->gr_mem[i])
{
if (0 == g_strcmp(groups->gr_mem[i], username))
{
*ok = 1;
break;
}
i++;
}
return 0;
#endif
}
/*****************************************************************************/
/* returns the time since the Epoch (00:00:00 UTC, January 1, 1970),
measured in seconds.
for windows, returns the number of seconds since the machine was
started. */
int APP_CC
g_time1(void)
{
#if defined(_WIN32)
return GetTickCount() / 1000;
#else
return time(0);
#endif
}
/*****************************************************************************/
/* returns the number of milliseconds since the machine was
started. */
int APP_CC
g_time2(void)
{
#if defined(_WIN32)
return (int)GetTickCount();
#else
struct tms tm;
clock_t num_ticks = 0;
g_memset(&tm,0,sizeof(struct tms));
num_ticks = times(&tm);
return (int)(num_ticks * 10);
#endif
}
/*****************************************************************************/
/* returns time in milliseconds, uses gettimeofday
does not work in win32 */
int APP_CC
g_time3(void)
{
#if defined(_WIN32)
return 0;
#else
struct timeval tp;
gettimeofday(&tp, 0);
return (tp.tv_sec * 1000) + (tp.tv_usec / 1000);
#endif
}