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amxmodx/amxmodx/file.cpp
David Anderson 4609cb409b Whoa! Merged in Pawn! (Small 3.0) 
Removed debug handling (will add back in soon)
Ported all amx_Exec()s to forward systems
Deprecated AMX Mod module support (incompatible with Pawn anyway!)
Deprecated many file natives (unused)
Deprecated some functionality of pause/unpause
Fixed some memory deallocation bugs (thanks fysh)
Bumped module API version to 3 (no new M/SDK yet!)
Bumped AMX Mod X version to 1.5!
Merged in CVector changes
2005-07-25 06:03:43 +00:00

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/* AMX Mod X
*
* by the AMX Mod X Development Team
* originally developed by OLO
*
*
* This program 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 2 of the License, or (at
* your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, the author gives permission to
* link the code of this program with the Half-Life Game Engine ("HL
* Engine") and Modified Game Libraries ("MODs") developed by Valve,
* L.L.C ("Valve"). You must obey the GNU General Public License in all
* respects for all of the code used other than the HL Engine and MODs
* from Valve. If you modify this file, you may extend this exception
* to your version of the file, but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from your
* version.
*/
// intptr_t
#ifdef _MSC_VER
typedef int intptr_t;
#define _INTPTR_T_DEFINED
#endif
#ifdef __GNUC__
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#endif
// header file for unlink()
#ifdef __linux__
#include <unistd.h>
#else
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#include <io.h>
#endif
#include <extdll.h>
#include <meta_api.h>
#include "amxmodx.h"
CVector<FILE *> FileList;
class AutoFilePtr
{
FILE *m_FP;
public:
AutoFilePtr(FILE *fp) : m_FP(fp)
{ }
~AutoFilePtr()
{
if (m_FP)
fclose(m_FP);
}
operator FILE* ()
{
return m_FP;
}
};
static cell AMX_NATIVE_CALL read_dir(AMX *amx, cell *params)
{
#ifdef __GNUC__
int a;
struct dirent *ep;
DIR *dp;
char* dirname = build_pathname("%s",get_amxstring(amx,params[1],0,a) );
a = params[2];
if ( (dp = opendir (dirname)) == NULL )
return 0;
seekdir( dp , a );
if ( (ep = readdir (dp)) != NULL ) {
cell *length = get_amxaddr(amx,params[5]);
*length = set_amxstring(amx,params[3], ep->d_name ,params[4]);
a = telldir( dp );
}
else
a = 0;
closedir (dp);
return a;
#else
int tmp;
char *dirname = build_pathname("%s/*", get_amxstring(amx, params[1], 0, tmp));
tmp = params[2];
_finddata_t fd;
intptr_t handle = _findfirst(dirname, &fd);
if (handle < 0)
return 0;
++tmp;
for (int i = 0; i < tmp; ++i)
{
if (_findnext(handle, &fd) < 0)
{
tmp = 0;
break;
}
}
// current data in fd
cell *length = get_amxaddr(amx,params[5]); // pointer to the outLen parameter
*length = set_amxstring(amx, params[3], fd.name, params[4]); // set output and outLen parameters
_findclose(handle);
return tmp;
#endif // __GNUC__
}
static cell AMX_NATIVE_CALL read_file(AMX *amx, cell *params) /* 5 param */
{
int iLen;
char* szFile = get_amxstring(amx,params[1],0,iLen);
FILE*fp;
if ( (fp =fopen(build_pathname("%s",szFile),"r")) == NULL) {
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
}
char buffor[1024];
int i = 0, iLine = params[2];
while((i <= iLine) && fgets(buffor,1023,fp) )
i++;
fclose(fp);
if (i > iLine){
int len = strlen(buffor);
if (buffor[len-1]=='\n')
buffor[--len]=0;
if (buffor[len-1]=='\r')
buffor[--len]=0;
cell *length = get_amxaddr(amx,params[5]);
*length = set_amxstring(amx,params[3],buffor,params[4]);
return i;
}
return 0;
}
static cell AMX_NATIVE_CALL write_file(AMX *amx, cell *params) /* 3 param */
{
int i;
char* sFile = build_pathname("%s", get_amxstring(amx,params[1],0,i) );
char* sText = get_amxstring(amx,params[2],0,i);
FILE* pFile;
int iLine = params[3];
// apending to the end
if (iLine < 0) {
if ( (pFile = fopen( sFile ,"a")) == NULL ){
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
}
fputs( sText , pFile );
fputc( '\n', pFile );
fclose( pFile );
return 1;
}
// creating a new file with a line in a middle
if ( (pFile = fopen(sFile,"r")) == NULL ) {
if ( (pFile = fopen(sFile,"w")) == NULL ){
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
}
for(i=0;i < iLine;++i)
fputc('\n',pFile);
fputs( sText , pFile );
fputc( '\n', pFile );
fclose(pFile);
return 1;
}
// adding a new line in a middle of already existing file
FILE* pTemp;
char buffor[2048];
if ( (pTemp = tmpfile()) == NULL ){
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
}
for(i=0;;++i){
if ( i == iLine ){
fgets(buffor,2047,pFile);
fputs( sText , pTemp );
fputc( '\n', pTemp );
}
else if ( fgets(buffor,2047,pFile) ){
fputs(buffor , pTemp );
}
else if ( i < iLine ) {
fputc( '\n', pTemp );
}
else break;
}
fclose(pFile);
rewind(pTemp);
// now rewrite because file can be now smaller...
if ( (pFile = fopen(sFile,"w")) == NULL ){
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
}
while(fgets(buffor,2047,pTemp))
fputs(buffor,pFile );
fclose(pTemp);
fclose(pFile);
return 1;
}
static cell AMX_NATIVE_CALL delete_file(AMX *amx, cell *params) /* 1 param */
{
int iLen;
char* sFile = get_amxstring(amx,params[1],0,iLen);
return (unlink( build_pathname("%s",sFile) )?0:1);
}
static cell AMX_NATIVE_CALL file_exists(AMX *amx, cell *params) /* 1 param */
{
int iLen;
char *sFile = get_amxstring(amx,params[1],0,iLen);
char *file = build_pathname("%s",sFile);
#if defined WIN32 || defined _WIN32
DWORD attr = GetFileAttributes(file);
if (attr == INVALID_FILE_ATTRIBUTES)
return 0;
if (attr == FILE_ATTRIBUTE_DIRECTORY)
return 0;
return 1;
#else
struct stat s;
if (stat(file, &s) != 0)
return 0;
if (S_ISDIR(s.st_mode))
return 0;
return 1;
#endif
}
static cell AMX_NATIVE_CALL dir_exists(AMX *amx, cell *params) /* 1 param */
{
int iLen;
char *sFile = get_amxstring(amx,params[1],0,iLen);
char *file = build_pathname("%s",sFile);
#if defined WIN32 || defined _WIN32
DWORD attr = GetFileAttributes(file);
if (attr == INVALID_FILE_ATTRIBUTES)
return 0;
if (attr == FILE_ATTRIBUTE_DIRECTORY)
return 1;
return 0;
#else
struct stat s;
if (stat(file, &s) != 0)
return 0;
if (S_ISDIR(s.st_mode))
return 1;
return 0;
#endif
}
static cell AMX_NATIVE_CALL file_size(AMX *amx, cell *params) /* 1 param */
{
int iLen;
char* sFile = get_amxstring(amx,params[1],0,iLen);
AutoFilePtr fp(fopen(build_pathname("%s",sFile),"r"));
if ( fp != NULL)
{
if ( params[0] < 2 || params[2] == 0 )
{
fseek(fp,0,SEEK_END);
int size = ftell(fp);
return size;
}
else if ( params[2] == 1 )
{
int a = 0,lines = 0;
while( a != EOF )
{
++lines;
while ( (a = fgetc(fp)) != '\n' && a != EOF )
;
}
//int a, b = '\n';
//while( (a = fgetc(fp)) != EOF ){
// if ( a == '\n')
// ++lines;
// b = a;
//}
//if ( b != '\n' )
// ++lines;
return lines;
}
else if ( params[2] == 2 ){
fseek(fp,-1,SEEK_END);
if ( fgetc(fp) == '\n' )
return 1;
return 0;
}
}
return -1;
}
//ported from Sanji's file access module by BAILOPAN
// Important update - now uses new handles
static cell AMX_NATIVE_CALL amx_fopen(AMX *amx, cell *params)
{
unsigned int i;
int len, j=-1;
char *file = build_pathname("%s", get_amxstring(amx, params[1], 1, len));
char *flags = get_amxstring(amx, params[2], 0, len);
FILE *fp = fopen(file, flags);
if (fp == NULL) {
// Failed
return 0;
}
for (i=0; i<FileList.size(); i++)
{
if (FileList.at(i) == NULL)
{
j = i;
break;
}
}
if (j==-1)
{
FileList.push_back(fp);
j = FileList.size() - 1;
} else {
FileList.at(j) = fp;
}
return j+1;
}
static cell AMX_NATIVE_CALL amx_fclose(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return fclose(fp);
} else {
return -1;
}
}
static cell AMX_NATIVE_CALL amx_fread(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
char *buffer;
if (fp) {
buffer = new char[params[3]]; // SLOW!!! :TODO: Find a better way (auto pointers?)
fread(buffer, sizeof(char), params[3], fp);
set_amxstring(amx, params[2], buffer, params[3]);
delete [] buffer;
return 1;
}
return -1;
}
#ifdef UNUSED
static cell AMX_NATIVE_CALL amx_fgetc(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return fgetc(fp);
} else {
return -1;
}
}
static cell AMX_NATIVE_CALL amx_fwrite(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
char *buf;
int len;
if (fp) {
buf = format_amxstring(amx, params, 2, len);
return fwrite(buf, sizeof(char), strlen(buf), fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_feof(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
if (feof(fp)) {
return 1;
}
return 0;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fseek(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return fseek(fp, (long)params[2], params[3]);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fputc(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return fputc(params[2], fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_rewind(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
rewind(fp);
return 1;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fflush(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return fflush(fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fscanf(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
char *buf;
int len;
buf = format_amxstring(amx, params, 2, len);
if (fp) {
return fscanf(fp, "%s", buf);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_ftell(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
if (fp) {
return ftell(fp);
}
return -1;
}
#endif //UNUSED
static cell AMX_NATIVE_CALL amx_filesize(AMX *amx, cell *params)
{
int len;
char *file = build_pathname("%s", format_amxstring(amx, params, 1, len));
long size;
AutoFilePtr fp(fopen(file, "rb"));
if (fp) {
fseek(fp, 0, SEEK_END);
size = ftell(fp);
return size;
}
return -1;
}
#ifdef UNUSED
static cell AMX_NATIVE_CALL amx_fgetl(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
long t;
if (fp) {
fread(&t, sizeof(long), 1, fp);
return t;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fgeti(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
int t;
if (fp) {
fread(&t, sizeof(int), 1, fp);
return t;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fgets(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
short t;
if (fp) {
fread(&t, sizeof(short), 1, fp);
return t;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fputs(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
short size = params[2];
if (fp) {
return fwrite(&size, sizeof(short), 1, fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fputl(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
long size = params[2];
if (fp) {
return fwrite(&size, sizeof(long), 1, fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fputi(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
int size = params[2];
if (fp) {
return fwrite(&size, sizeof(int), 1, fp);
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fgetf(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
float t;
if (fp) {
fread(&t, sizeof(float), 1, fp);
return *(cell*)&t;
}
return -1;
}
static cell AMX_NATIVE_CALL amx_fputf(AMX *amx, cell *params)
{
unsigned int id = params[1] - 1;
if (id >= FileList.size() || FileList.at(id) == NULL)
return 0;
FILE *fp = FileList.at(id);
float size = *(float *)((void *)&params[2]);
if (fp) {
return fwrite(&size, sizeof(float), 1, fp);
}
return -1;
}
#endif //UNUSED
static cell AMX_NATIVE_CALL amx_build_pathname(AMX *amx, cell *params)
{
int len;
char *szPath = get_amxstring(amx, params[1], 0, len);
return set_amxstring(amx, params[2], build_pathname("%s", szPath), params[3]);
}
static cell AMX_NATIVE_CALL amx_open_dir(AMX *amx, cell *params)
{
int len;
char *path = get_amxstring(amx, params[1], 0, len);
#if defined WIN32 || defined _WIN32
char *dirname = build_pathname("%s\\*", path);
WIN32_FIND_DATA fd;
HANDLE hFile = FindFirstFile(dirname, &fd);
if (hFile == INVALID_HANDLE_VALUE)
return 0;
set_amxstring(amx, params[2], fd.cFileName, params[3]);
return (DWORD)hFile;
#else
char *dirname = build_pathname("%s", path);
DIR *dp = opendir(dirname);
if (!dp)
return NULL;
struct dirent *ep = readdir(dp);
if (!ep)
{
closedir(dp);
return NULL;
}
set_amxstring(amx,params[2], ep->d_name,params[3]);
return (cell)dp;
#endif
}
static cell AMX_NATIVE_CALL amx_close_dir(AMX *amx, cell *params)
{
#if defined WIN32 || defined _WIN32
HANDLE hFile = (HANDLE)((DWORD)params[1]);
if (hFile == INVALID_HANDLE_VALUE || hFile == NULL)
return 0;
FindClose(hFile);
return 1;
#else
DIR *dp = (DIR *)params[1];
if (!dp)
return 0;
closedir(dp);
return 1;
#endif
}
static cell AMX_NATIVE_CALL amx_get_dir(AMX *amx, cell *params)
{
#if defined WIN32 || defined _WIN32
HANDLE hFile = (HANDLE)((DWORD)params[1]);
if (hFile == INVALID_HANDLE_VALUE || hFile == NULL)
return 0;
WIN32_FIND_DATA fd;
if (!FindNextFile(hFile, &fd))
return 0;
set_amxstring(amx, params[2], fd.cFileName, params[3]);
return 1;
#else
DIR *dp = (DIR *)params[1];
if (!dp)
return 0;
struct dirent *ep = readdir(dp);
if (!ep)
return 0;
set_amxstring(amx,params[2], ep->d_name,params[3]);
return 1;
#endif
}
AMX_NATIVE_INFO file_Natives[] = {
{ "delete_file", delete_file },
{ "file_exists", file_exists },
{ "file_size", file_size },
{ "read_dir", read_dir },
{ "read_file", read_file },
{ "write_file", write_file },
//Sanji's File Natives
{ "fopen", amx_fopen },
{ "fclose", amx_fclose },
{ "fread", amx_fread },
{ "filesize", amx_filesize },
#ifdef UNUSED
{ "fgetc", amx_fgetc },
{ "fwrite", amx_fwrite },
{ "feof", amx_feof },
{ "fseek", amx_fseek },
{ "fputc", amx_fputc },
{ "rewind", amx_rewind },
{ "fflush", amx_fflush },
{ "fscanf", amx_fscanf },
{ "ftell", amx_ftell },
{ "fgetl", amx_fgetl },
{ "fgeti", amx_fgeti },
{ "fgets", amx_fgets },
{ "fputs", amx_fputs },
{ "fputl", amx_fputl },
{ "fputi", amx_fputi },
{ "fgetf", amx_fgetf },
{ "fputf", amx_fputf },
#endif
{ "unlink", delete_file },
{ "build_pathname", amx_build_pathname},
{ "dir_exists", dir_exists },
{ "open_dir", amx_open_dir },
{ "close_dir", amx_close_dir },
{ "next_file", amx_get_dir },
{ NULL, NULL }
};
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