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,&user
,-1 /* dir */
,TRUE /* uploading */
,FALSE /* credits */
,!strnicmp(cmd,"APPE",4) ? TRUE : FALSE /* append */
,NULL /* desc */
);
filepos=0;
continue;
} /* Local STOR */
}
if(!strnicmp(cmd, "LIST", 4) || !strnicmp(cmd, "NLST", 4)) {
dir=curdir;
lib=curlib;
if(cmd[4]!=0)
lprintf("%04d LIST/NLST: %s",sock,cmd);
/* path specified? */
p=cmd+4;
while(*p && *p<=' ') p++;
if(*p=='-') { /* -Letc */
while(*p && *p>' ') p++;
while(*p && *p<=' ') p++;
}
parsepath(&p,&user,&lib,&dir);
sprintf(fname,"%sFTP%d.TX", scfg.data_dir, sock);
if((fp=fopen(fname,"w+b"))==NULL) {
lprintf("%04d !ERROR %d opening %s",sock,errno,fname);
sockprintf(sock, "451 Insufficient system storage");
continue;
}
if(!strnicmp(cmd, "LIST", 4))
detail=TRUE;
else
detail=FALSE;
sockprintf(sock,"150 Opening ASCII mode data connection for /bin/ls.");
now=time(NULL);
tm_p=localtime(&now);
if(tm_p==NULL)
memset(&cur_tm,0,sizeof(cur_tm));
else
cur_tm=*tm_p;
if(startup->options&FTP_OPT_INDEX_FILE && startup->index_file_name[0]
&& (!stricmp(p,startup->index_file_name) || *p==0 || *p=='*')) {
if(detail)
fprintf(fp,"-rw-r--r-- 1 %-*s %-8s %9ld %s %2d %02d:%02d %s\r\n"
,NAME_LEN
,scfg.sys_id
,lib<0 ? scfg.sys_id : dir<0
? scfg.lib[lib]->sname : scfg.dir[dir]->code
,512
,mon[cur_tm.tm_mon],cur_tm.tm_mday,cur_tm.tm_hour,cur_tm.tm_min
,startup->index_file_name);
else
fprintf(fp,"%s\r\n",startup->index_file_name);
}
if(lib<0) { /* Root dir */
lprintf("%04d %s listing: root",sock,user.alias);
/* QWK Packet */
if(startup->options&FTP_OPT_ALLOW_QWK/* && fexist(qwkfile)*/) {
if(detail) {
if(fexist(qwkfile)) {
t=fdate(qwkfile);
l=flength(qwkfile);
} else {
t=time(NULL);
l=10240;
};
tm_p=localtime(&t);
if(tm_p==NULL)
memset(&tm,0,sizeof(tm));
else
tm=*tm_p;
fprintf(fp,"-rw-r--r-- 1 %-*s %-8s %9ld %s %2d %02d:%02d %s.qwk\r\n"
,NAME_LEN
,scfg.sys_id
,scfg.sys_id
,l
,mon[tm.tm_mon],tm.tm_mday,tm.tm_hour,tm.tm_min
,scfg.sys_id);
} else
fprintf(fp,"%s.qwk\r\n",scfg.sys_id);
}
/* File Aliases */
sprintf(aliasfile,"%sFTPALIAS.CFG",scfg.ctrl_dir);
if((alias_fp=fopen(aliasfile,"r"))!=NULL) {
while(!feof(alias_fp)) {
if(!fgets(aliasline,sizeof(aliasline)-1,alias_fp))
break;
alias_dir=FALSE;
p=aliasline; /* alias pointer */
while(*p && *p<=' ') p++;
if(*p==';') /* comment */
continue;
tp=p; /* terminator pointer */
while(*tp && *tp>' ') tp++;
if(*tp) *tp=0;
np=tp+1; /* filename pointer */
while(*np && *np<=' ') np++;
tp=np; /* terminator pointer */
while(*tp && *tp>' ') tp++;
if(*tp) *tp=0;
/* Virtual Path? */
if(!strnicmp(np,BBS_VIRTUAL_PATH,strlen(BBS_VIRTUAL_PATH))) {
if((dir=getdir(np+strlen(BBS_VIRTUAL_PATH),&user))<0)
continue; /* No access or invalid virtual path */
tp=strrchr(np,'/');
if(tp==NULL)
continue;
tp++;
if(*tp) {
sprintf(aliasfile,"%s%s",scfg.dir[dir]->path,tp);
np=aliasfile;
}
else
alias_dir=TRUE;
}
if(!alias_dir && !fexist(np))
continue;
if(detail) {
if(alias_dir==TRUE) {
fprintf(fp,"drwxr-xr-x 1 %-*s %-8s %9ld %s %2d %02d:%02d %s\r\n"
,NAME_LEN
,scfg.sys_id
,scfg.lib[scfg.dir[dir]->lib]->sname
,512
,mon[cur_tm.tm_mon],cur_tm.tm_mday,cur_tm.tm_hour,cur_tm.tm_min
,p);
}
else {
t=fdate(np);
tm_p=localtime(&t);
if(tm_p==NULL)
memset(&tm,0,sizeof(tm));
else
tm=*tm_p;
fprintf(fp,"-rw-r--r-- 1 %-*s %-8s %9ld %s %2d %02d:%02d %s\r\n"
,NAME_LEN
,scfg.sys_id
,scfg.sys_id
,flength(np)
,mon[tm.tm_mon],tm.tm_mday,tm.tm_hour,tm.tm_min
,p);
}
} else
fprintf(fp,"%s\r\n",p);
}
fclose(alias_fp);
}
/* Library folders */
for(i=0;i<scfg.total_libs;i++) {
if(!chk_ar(&scfg,scfg.lib[i]->ar,&user))
continue;
if(detail)
fprintf(fp,"drwxr-xr-x 1 %-*s %-8s %9ld %s %2d %02d:%02d %s\r\n"
,NAME_LEN
,scfg.sys_id
,scfg.sys_id
,512
,mon[cur_tm.tm_mon],cur_tm.tm_mday,cur_tm.tm_hour,cur_tm.tm_min
,scfg.lib[i]->sname);
else
fprintf(fp,"%s\r\n",scfg.lib[i]->sname);
}
} else if(dir<0) {
lprintf("%04d %s listing: %s library",sock,user.alias,scfg.lib[lib]->sname);
for(i=0;i<scfg.total_dirs;i++) {
if(scfg.dir[i]->lib!=lib)
continue;
if(i!=scfg.sysop_dir && i!=scfg.upload_dir
&& !chk_ar(&scfg,scfg.dir[i]->ar,&user))
continue;
if(detail)
fprintf(fp,"drwxr-xr-x 1 %-*s %-8s %9ld %s %2d %02d:%02d %s\r\n"
,NAME_LEN
,scfg.sys_id
,scfg.lib[lib]->sname
,512
,mon[cur_tm.tm_mon],cur_tm.tm_mday,cur_tm.tm_hour,cur_tm.tm_min
,scfg.dir[i]->code);
else
fprintf(fp,"%s\r\n",scfg.dir[i]->code);
}
} else if(chk_ar(&scfg,scfg.dir[dir]->ar,&user)) {
lprintf("%04d %s listing: %s/%s directory"
,sock,user.alias,scfg.lib[lib]->sname,scfg.dir[dir]->code);
sprintf(path,"%s%s",scfg.dir[dir]->path,*p ? p : "*");
ff_handle=_findfirst(path,&ff);
while(ff_handle!=-1) {
sprintf(path,"%s%s",scfg.dir[dir]->path,ff.name);
GetShortPathName(path, str, sizeof(str));
p=strrchr(str,'\\');
if(p==NULL) p=str;
else p++;
padfname(p,f.name);
strupr(f.name);
f.dir=dir;
if(!(ff.attrib&_A_SUBDIR) /* not a directory */
&& ((filedat=getfileixb(&scfg,&f))==TRUE
|| startup->options&FTP_OPT_DIR_FILES)) {
if(detail) {
f.size=ff.size;
getfiledat(&scfg,&f);
tm_p=localtime(&ff.time_write);
if(tm_p==NULL)
memset(&tm,0,sizeof(tm));
else
tm=*tm_p;
fprintf(fp,"-rw-r--r-- 1 %-*s %-8s %9ld %s %2d "
,NAME_LEN
,filedat ? dotname(f.uler,str) : scfg.sys_id
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,scfg.dir[dir]->code
,f.size
,mon[tm.tm_mon],tm.tm_mday);
if(tm.tm_year==cur_tm.tm_year)
fprintf(fp,"%02d:%02d %s\r\n"
,tm.tm_hour,tm.tm_min
,ff.name);
else
fprintf(fp,"%5d %s\r\n"
,1900+tm.tm_year
,ff.name);
} else
fprintf(fp,"%s\r\n",ff.name);
}
if(_findnext(ff_handle,&ff)!=0) {
_findclose(ff_handle);
ff_handle=-1;
}
}
} else
strcpy(fname,"NUL");
fclose(fp);
filexfer(&data_addr,sock,pasv_sock,&data_sock,fname,0L
,&transfer_inprogress,&transfer_aborted,TRUE,TRUE
,&lastactive,&user,dir,FALSE,FALSE,FALSE,NULL);
continue;
}
rswindell
committed
if(!strnicmp(cmd, "RETR ", 5)
|| !strnicmp(cmd, "SIZE ",5)
|| !strnicmp(cmd, "MDTM ",5)
|| !strnicmp(cmd, "DELE ",5)) {
getdate=FALSE;
getsize=FALSE;
rswindell
committed
delecmd=FALSE;
if(!strnicmp(cmd,"SIZE ",5))
getsize=TRUE;
else if(!strnicmp(cmd,"MDTM ",5))
getdate=TRUE;
rswindell
committed
else if(!strnicmp(cmd,"DELE ",5))
delecmd=TRUE;
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if(!getsize && !getdate && user.rest&FLAG('D')) {
sockprintf(sock,"550 Insufficient access.");
filepos=0;
continue;
}
credits=TRUE;
success=FALSE;
delfile=FALSE;
tmpfile=FALSE;
lib=curlib;
dir=curdir;
p=cmd+5;
while(*p && *p<=' ') p++;
if(!strnicmp(p,BBS_FSYS_DIR,strlen(BBS_FSYS_DIR)))
p+=strlen(BBS_FSYS_DIR); /* already mounted */
if(*p=='/') {
lib=-1;
p++;
}
else if(!strncmp(p,"./",2))
p+=2;
if(lib<0 && alias(p, fname, &user, &dir)==TRUE) {
success=TRUE;
credits=TRUE; /* include in d/l stats */
tmpfile=FALSE;
delfile=FALSE;
lprintf("%04d %s %.4s by alias: %s"
,sock,user.alias,cmd,p);
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p=strrchr(fname,'\\');
if(p==NULL)
p=strrchr(fname,'/');
if(p!=NULL) p++;
}
if(!success && lib<0 && (tp=strchr(p,'/'))!=NULL) {
dir=-1;
*tp=0;
for(i=0;i<scfg.total_libs;i++) {
if(!chk_ar(&scfg,scfg.lib[i]->ar,&user))
continue;
if(!stricmp(scfg.lib[i]->sname,p))
break;
}
if(i<scfg.total_libs)
lib=i;
p=tp+1;
}
if(!success && dir<0 && (tp=strchr(p,'/'))!=NULL) {
*tp=0;
for(i=0;i<scfg.total_dirs;i++) {
if(scfg.dir[i]->lib!=lib)
continue;
if(!chk_ar(&scfg,scfg.dir[i]->ar,&user))
continue;
if(!stricmp(scfg.dir[i]->code,p))
break;
}
if(i<scfg.total_dirs)
dir=i;
p=tp+1;
}
sprintf(str,"%s.qwk",scfg.sys_id);
if(lib<0 && startup->options&FTP_OPT_ALLOW_QWK
rswindell
committed
&& !stricmp(p,str) && !delecmd) {
lprintf("%04d %s creating/updating QWK packet...",sock,user.alias);
sprintf(str,"%sPACK%04u.NOW",scfg.data_dir,user.number);
if((file=open(str,O_WRONLY|O_CREAT,_S_IWRITE))==-1) {
lprintf("%04d !ERROR %d opening %s",sock, errno, str);
sockprintf(sock, "451 !ERROR %d creating semaphore file",errno);
filepos=0;
continue;
}
close(file);
t=time(NULL);
while(fexist(str)) {
if(time(NULL)-t>300)
break;
Sleep(500);
}
if(fexist(str)) {
lprintf("%04d !TIMEOUT waiting for QWK packet creation",sock);
sockprintf(sock,"451 Time-out waiting for packet creation.");
remove(str);
filepos=0;
continue;
}
if(!fexist(qwkfile)) {
lprintf("%04d No QWK Packet created (no new messages)",sock);
sockprintf(sock,"550 No QWK packet created (no new messages)");
filepos=0;
continue;
}
strcpy(fname,qwkfile);
success=TRUE;
delfile=TRUE;
credits=FALSE;
lprintf("%04d %s downloading QWK packet (%ld bytes)"
,sock,user.alias,flength(fname));
} else if(startup->options&FTP_OPT_INDEX_FILE
rswindell
committed
&& !stricmp(p,startup->index_file_name)
&& !delecmd) {
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sprintf(fname,"%sFTP%d.TX", scfg.data_dir, sock);
if((fp=fopen(fname,"w+b"))==NULL) {
lprintf("%04d !ERROR %d opening %s",sock,errno,fname);
sockprintf(sock, "451 Insufficient system storage");
filepos=0;
continue;
}
if(!getsize && !getdate)
lprintf("%04d %s downloading index",sock,user.alias);
success=TRUE;
credits=FALSE;
tmpfile=TRUE;
delfile=TRUE;
fprintf(fp,"%-*s File/Folder Descriptions\r\n"
,INDEX_FNAME_LEN,startup->index_file_name);
if(lib<0) {
/* File Aliases */
sprintf(aliasfile,"%sFTPALIAS.CFG",scfg.ctrl_dir);
if((alias_fp=fopen(aliasfile,"r"))!=NULL) {
while(!feof(alias_fp)) {
if(!fgets(aliasline,sizeof(aliasline)-1,alias_fp))
break;
p=aliasline; /* alias pointer */
while(*p && *p<=' ') p++;
if(*p==';') /* comment */
continue;
tp=p; /* terminator pointer */
while(*tp && *tp>' ') tp++;
if(*tp) *tp=0;
np=tp+1; /* filename pointer */
while(*np && *np<=' ') np++;
np++; /* description pointer */
while(*np && *np>' ') np++;
while(*np && *np<' ') np++;
truncsp(np);
fprintf(fp,"%-*s %s\r\n",INDEX_FNAME_LEN,p,np);
}
fclose(alias_fp);
}
/* QWK Packet */
if(startup->options&FTP_OPT_ALLOW_QWK /* && fexist(qwkfile) */) {
sprintf(str,"%s.qwk",scfg.sys_id);
fprintf(fp,"%-*s QWK Message Packet\r\n"
,INDEX_FNAME_LEN,str);
}
/* Library Folders */
for(i=0;i<scfg.total_libs;i++) {
if(!chk_ar(&scfg,scfg.lib[i]->ar,&user))
continue;
fprintf(fp,"%-*s %s\r\n"
,INDEX_FNAME_LEN,scfg.lib[i]->sname,scfg.lib[i]->lname);
}
} else if(dir<0) {
for(i=0;i<scfg.total_dirs;i++) {
if(scfg.dir[i]->lib!=lib)
continue;
if(i!=scfg.sysop_dir && i!=scfg.upload_dir
&& !chk_ar(&scfg,scfg.dir[i]->ar,&user))
continue;
fprintf(fp,"%-*s %s\r\n"
,INDEX_FNAME_LEN,scfg.dir[i]->code,scfg.dir[i]->lname);
}
} else {
sprintf(cmd,"%s*.*",scfg.dir[dir]->path);
ff_handle=_findfirst(cmd,&ff);
while(ff_handle!=-1) {
sprintf(cmd,"%s%s",scfg.dir[dir]->path,ff.name);
GetShortPathName(cmd, str, sizeof(str));
p=strrchr(str,'\\');
if(p==NULL) p=str;
else p++;
padfname(p,f.name);
strupr(f.name);
f.dir=dir;
if(!(ff.attrib&_A_SUBDIR) && getfileixb(&scfg,&f)) { /* not a directory */
f.size=ff.size;
getfiledat(&scfg,&f);
fprintf(fp,"%-*s %s\r\n",INDEX_FNAME_LEN,ff.name,f.desc);
}
if(_findnext(ff_handle,&ff)!=0) {
_findclose(ff_handle);
ff_handle=-1;
}
}
}
fclose(fp);
} else if(dir>=0) {
if(!chk_ar(&scfg,scfg.dir[dir]->ar,&user)) {
lprintf("%04d !%s has insufficient access to /%s/%s"
,sock,user.alias,scfg.lib[scfg.dir[dir]->lib]->sname,scfg.dir[dir]->code);
sockprintf(sock,"550 Insufficient access.");
filepos=0;
continue;
}
rswindell
committed
if(!getsize && !getdate && !delecmd
&& !chk_ar(&scfg,scfg.dir[dir]->dl_ar,&user)) {
lprintf("%04d !%s has insufficient access to download from /%s/%s"
,sock,user.alias,scfg.lib[scfg.dir[dir]->lib]->sname,scfg.dir[dir]->code);
sockprintf(sock,"550 Insufficient access.");
filepos=0;
continue;
}
rswindell
committed
if(delecmd && !dir_op(&scfg,&user,dir)) {
lprintf("%04d !%s has insufficient access to delete files in /%s/%s"
,sock,user.alias,scfg.lib[scfg.dir[dir]->lib]->sname,scfg.dir[dir]->code);
sockprintf(sock,"550 Insufficient access.");
filepos=0;
continue;
}
sprintf(fname,"%s%s",scfg.dir[dir]->path,p);
GetShortPathName(fname, str, sizeof(str));
np=strrchr(str,'\\');
if(np==NULL)
np=str;
else
np++;
padfname(np,f.name);
strupr(f.name);
f.dir=dir;
f.cdt=0;
f.size=-1;
filedat=getfileixb(&scfg,&f);
if(!filedat && !(startup->options&FTP_OPT_DIR_FILES)) {
sockprintf(sock,"550 File not found: %s",p);
lprintf("%04d %s file not found: %s",sock,user.alias,fname);
filepos=0;
continue;
}
rswindell
committed
/* Verify credits */
if(!getsize && !getdate && !delecmd
&& !(scfg.dir[dir]->misc&DIR_FREE) && !(user.exempt&FLAG('D'))) {
if(filedat)
getfiledat(&scfg,&f);
else
f.cdt=flength(fname);
if(f.cdt>(user.cdt+user.freecdt)) {
lprintf("%04d !%s has insufficient credit to download /%s/%s/%s (%lu credits)"
,sock,user.alias,scfg.lib[scfg.dir[dir]->lib]->sname
,scfg.dir[dir]->code
,p
,f.cdt);
sockprintf(sock,"550 Insufficient credit (%lu required).",f.cdt);
filepos=0;
continue;
}
}
if(strcspn(p,ILLEGAL_FILENAME_CHARS)!=strlen(p)) {
success=FALSE;
lprintf("%04d !%s illegal filename attempt: %s"
,sock,user.alias,p);
} else {
if(fexist(fname)) {
success=TRUE;
rswindell
committed
if(!getsize && !getdate && !delecmd)
lprintf("%04d %s downloading: %s (%ld bytes)"
,sock,user.alias,fname,flength(fname));
}
}
if(getsize && success)
sockprintf(sock,"213 %lu",flength(fname));
else if(getdate && success) {
t=fdate(fname);
tm_p=gmtime(&t);
if(tm_p==NULL)
memset(&tm,0,sizeof(tm));
else
tm=*tm_p;
sockprintf(sock,"213 %u%02u%02u%02u%02u%02u"
,1900+tm.tm_year,tm.tm_mon+1,tm.tm_mday
,tm.tm_hour,tm.tm_min,tm.tm_sec);
rswindell
committed
} else if(delecmd && success) {
if(remove(fname)!=0) {
lprintf("%04d !ERROR %d deleting %s",sock,errno,fname);
sockprintf(sock,"450 %s could not be deleted (error: %d)"
,fname,errno);
} else {
lprintf("%04d %s deleted %s",sock,user.alias,fname);
if(filedat)
removefiledat(&scfg,&f);
sockprintf(sock,"250 %s deleted.",fname);
}
} else if(success) {
sockprintf(sock,"150 Opening BINARY mode data connection for file transfer.");
filexfer(&data_addr,sock,pasv_sock,&data_sock,fname,filepos
,&transfer_inprogress,&transfer_aborted,delfile,tmpfile
,&lastactive,&user,dir,FALSE,credits,FALSE,NULL);
}
sockprintf(sock,"550 File not found: %s",p);
rswindell
committed
lprintf("%04d !File not found (%s) for %.4s command",sock,p,cmd);
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filepos=0;
continue;
}
if(!strnicmp(cmd, "DESC", 4)) {
if(user.rest&FLAG('U')) {
sockprintf(sock,"553 Insufficient access.");
continue;
}
p=cmd+4;
while(*p && *p<=' ') p++;
if(*p==0)
sockprintf(sock,"501 No file description given.");
else {
sprintf(desc,"%.*s",sizeof(desc)-1,p);
sockprintf(sock,"200 File description set. Ready to STOR file.");
}
continue;
}
if(!strnicmp(cmd, "STOR ", 5)) {
if(user.rest&FLAG('U')) {
sockprintf(sock,"553 Insufficient access.");
continue;
}
if(transfer_inprogress==TRUE) {
lprintf("%04d !TRANSFER already in progress (%s)",sock,cmd);
sockprintf(sock,"425 Transfer already in progress.");
continue;
}
lib=curlib;
dir=curdir;
p=cmd+5;
while(*p && *p<=' ') p++;
if(!strnicmp(p,BBS_FSYS_DIR,strlen(BBS_FSYS_DIR)))
p+=strlen(BBS_FSYS_DIR); /* already mounted */
if(*p=='/') {
lib=-1;
p++;
}
else if(!strncmp(p,"./",2))
p+=2;
if(lib<0 && (tp=strchr(p,'/'))!=NULL) {
dir=-1;
*tp=0;
for(i=0;i<scfg.total_libs;i++) {
if(!chk_ar(&scfg,scfg.lib[i]->ar,&user))
continue;
if(!stricmp(scfg.lib[i]->sname,p))
break;
}
if(i<scfg.total_libs)
lib=i;
p=tp+1;
}
if(dir<0 && (tp=strchr(p,'/'))!=NULL) {
*tp=0;
for(i=0;i<scfg.total_dirs;i++) {
if(scfg.dir[i]->lib!=lib)
continue;
if(!chk_ar(&scfg,scfg.dir[i]->ar,&user))
continue;
if(!stricmp(scfg.dir[i]->code,p))
break;
}
if(i<scfg.total_dirs)
dir=i;
p=tp+1;
}
if(dir<0) {
sprintf(str,"%s.rep",scfg.sys_id);
if(!(startup->options&FTP_OPT_ALLOW_QWK)
|| stricmp(p,str)) {
lprintf("%04d !%s attempted to upload to invalid directory"
,sock,user.alias);
sockprintf(sock,"553 Invalid directory.");
continue;
}
sprintf(fname,"%sFILE/%04d.REP",scfg.data_dir,user.number);
lprintf("%04d %s uploading %s"
,sock,user.alias,fname);
} else {
if(!chk_ar(&scfg,scfg.dir[dir]->ul_ar,&user)) {
lprintf("%04d !%s has insufficient access to upload to /%s/%s"
,sock,user.alias,scfg.lib[scfg.dir[dir]->lib]->sname,scfg.dir[dir]->code);
sockprintf(sock,"553 Insufficient access.");
continue;
}
if(strcspn(p,ILLEGAL_FILENAME_CHARS)!=strlen(p)
|| trashcan(&scfg,p,"FILE")) {
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lprintf("%04d !%s illegal filename attempt: %s"
,sock,user.alias,p);
sockprintf(sock,"553 Illegal filename attempt");
continue;
}
sprintf(fname,"%s%s",scfg.dir[dir]->path,p);
if(fexist(fname)) {
lprintf("%04d !%s attempted to overwrite existing file: %s"
,sock,user.alias,fname);
sockprintf(sock,"553 File already exists.");
continue;
}
lprintf("%04d %s uploading %s to /%s/%s"
,sock,user.alias,fname
,scfg.lib[scfg.dir[dir]->lib]->sname,scfg.dir[dir]->code);
}
sockprintf(sock,"150 Opening BINARY mode data connection for file transfer.");
filexfer(&data_addr,sock,pasv_sock,&data_sock,fname,filepos
,&transfer_inprogress,&transfer_aborted,FALSE,FALSE
,&lastactive
,&user
,dir
,TRUE /* uploading */
,TRUE /* credits */
,FALSE /* append */
,desc
);
filepos=0;
continue;
}
if(!stricmp(cmd,"CDUP") || !stricmp(cmd,"XCUP")) {
if(curdir<0)
curlib=-1;
else
curdir=-1;
sockprintf(sock,"200 CDUP command successful.");
continue;
}
if(!strnicmp(cmd, "CWD ", 4) || !strnicmp(cmd,"XCWD ",5)) {
p=cmd+4;
while(*p && *p<=' ') p++;
if(!strnicmp(p,BBS_FSYS_DIR,strlen(BBS_FSYS_DIR)))
p+=strlen(BBS_FSYS_DIR); /* already mounted */
if(*p=='/') {
curlib=-1;
curdir=-1;
p++;
}
/* Local File System? */
if(sysop && !(startup->options&FTP_OPT_NO_LOCAL_FSYS)
&& !strnicmp(p,LOCAL_FSYS_DIR,strlen(LOCAL_FSYS_DIR))) {
p+=strlen(LOCAL_FSYS_DIR);
if(!direxist(p)) {
sockprintf(sock,"550 Directory does not exist.");
lprintf("%04d %s attempted to mount invalid directory: %s"
,sock, user.alias, p);
continue;
}
sprintf(local_dir,"%.*s",sizeof(local_dir)-1,p);
local_fsys=TRUE;
sockprintf(sock,"250 CWD command successful (local file system mounted).");
lprintf("%04d %s mounted local file system", sock, user.alias);
continue;
}
success=FALSE;
/* Directory Alias? */
if(curlib<0 && alias(p,NULL,&user,&curdir)==TRUE) {
if(curdir>=0)
curlib=scfg.dir[curdir]->lib;
success=TRUE;
}
orglib=curlib;
orgdir=curdir;
tp=0;
if(!strncmp(p,"...",3)) {
curlib=-1;
curdir=-1;
p+=3;
}
if(!strncmp(p,"./",2))
p+=2;
else if(!strncmp(p,"..",2)) {
if(curdir<0)
curlib=-1;
else
curdir=-1;
p+=2;
}
if(*p==0)
success=TRUE;
else if(!strcmp(p,"."))
success=TRUE;
if(!success && (curlib<0 || *p=='/')) { /* Root dir */
if(*p=='/') p++;
tp=strchr(p,'/');
if(tp) *tp=0;
for(i=0;i<scfg.total_libs;i++) {
if(!chk_ar(&scfg,scfg.lib[i]->ar,&user))
continue;
if(!stricmp(scfg.lib[i]->sname,p))
break;
}
if(i<scfg.total_libs) {
curlib=i;
success=TRUE;
}
}
if((!success && curdir<0) || (success && tp && *(tp+1))) {
if(tp)
p=tp+1;
tp=strchr(p,'/');
if(tp) *tp=0;
for(i=0;i<scfg.total_dirs;i++) {
if(scfg.dir[i]->lib!=curlib)
continue;
if(i!=scfg.sysop_dir && i!=scfg.upload_dir
&& !chk_ar(&scfg,scfg.dir[i]->ar,&user))
continue;
if(!stricmp(scfg.dir[i]->code,p))
break;
}
if(i<scfg.total_dirs) {
curdir=i;
success=TRUE;
} else
success=FALSE;
}
if(success)
sockprintf(sock,"250 CWD command successful.");
else {
sockprintf(sock,"550 %s: No such file or directory.",p);
curlib=orglib;
curdir=orgdir;
}
continue;
}
if(!stricmp(cmd, "PWD") || !stricmp(cmd,"XPWD")) {
if(curlib<0)
sockprintf(sock,"257 \"/\" is current directory.");
else if(curdir<0)
sockprintf(sock,"257 \"/%s\" is current directory."
,scfg.lib[curlib]->sname);
else
sockprintf(sock,"257 \"/%s/%s\" is current directory."
,scfg.lib[curlib]->sname,scfg.dir[curdir]->code);
continue;
}
sockprintf(sock,"500 Syntax error: '%s'",cmd);
lprintf("%04d !FTP: UNSUPPORTED COMMAND: '%s'",sock,cmd);
}
if(transfer_inprogress==TRUE) {
lprintf("%04d Waiting for transfer to complete...",sock);
while(data_sock!=INVALID_SOCKET && transfer_inprogress==TRUE) {
Sleep(500);
if(gettimeleft(&scfg,&user,logintime)<1) {
lprintf("%04d Out of time, disconnecting",sock);
sockprintf(sock,"421 Sorry, you've run out of time.");
close_socket(&data_sock,__LINE__);
transfer_aborted=TRUE;
}
if((time(NULL)-lastactive)>startup->max_inactivity) {
lprintf("%04d Disconnecting due to to inactivity.",sock);
sockprintf(sock,"421 Disconnecting due to inactivity (%u seconds)."
,startup->max_inactivity);
close_socket(&data_sock,__LINE__);
transfer_aborted=TRUE;
}
}
lprintf("%04d Done waiting for transfer to complete",sock);
}
/* Update User Statistics */
if(user.number) {
user.tlast=(ushort)(time(NULL)-logintime);
putuserrec(&scfg,user.number,U_LASTON,8,ultoa(time(NULL),str,16));
putuserrec(&scfg,user.number,U_TLAST,5,itoa(user.tlast,str,10));
adjustuserrec(&scfg,user.number,U_TIMEON,5,user.tlast);
}
if(user.number)
lprintf("%04d %s logged off.",sock,user.alias);
if(startup->hangup_sound[0] && !(startup->options&FTP_OPT_MUTE))
PlaySound(startup->hangup_sound, NULL, SND_ASYNC|SND_FILENAME);
status(STATUS_WFC);
lprintf("%04d CTRL thread terminated", sock);
active_clients--;
update_clients();
client_off(sock);
/* Free up resources here */
close_socket(&sock,__LINE__);
if(pasv_sock!=INVALID_SOCKET)
close_socket(&pasv_sock,__LINE__);
if(data_sock!=INVALID_SOCKET)
close_socket(&data_sock,__LINE__);
thread_down();
}
static void cleanup(int code)
{
if(server_socket!=INVALID_SOCKET)
close_socket(&server_socket,__LINE__);
server_socket=INVALID_SOCKET;
update_clients();
if(WSACleanup()!=0)
lprintf("!WSACleanup ERROR %d",ERROR_VALUE);
lprintf("FTP Server thread terminated");
status("Down");
if(startup!=NULL && startup->terminated!=NULL)
startup->terminated(code);
thread_down();
}
char* ftp_ver(void)
{
static char ver[256];
char compiler[32];
#if defined(__BORLANDC__)
sprintf(compiler,"BCC %X.%02X"
,__BORLANDC__>>8
,__BORLANDC__&0xff);
#elif defined(_MSC_VER)
sprintf(compiler,"MSC %u", _MSC_VER);
#else
strcpy(compiler,"UNKNOWN COMPILER");
#endif
sprintf(ver,"Synchronet FTP Server v%s%s "
"Compiled %s %s with %s"
,FTP_VERSION
#ifdef _DEBUG
," Debug"
#else
,""
#endif
,__DATE__, __TIME__, compiler);
return(ver);
}
void ftp_server(void* arg)
{
char compiler[32];
SOCKADDR_IN server_addr;
SOCKADDR_IN client_addr;
int client_addr_len;
SOCKET client_socket;
int i;
int result;
time_t t;
time_t start;
LINGER linger;
ftp_t* ftp;
startup=(ftp_startup_t*)arg;
if(startup==NULL) {
Beep(100,500);
fprintf(stderr, "No startup structure passed!\n");
return;
}
if(startup->size!=sizeof(ftp_startup_t)) { /* verify size */
Beep(100,500);
Beep(300,500);
Beep(100,500);
fprintf(stderr, "Invalid startup structure!\n");
return;
}
thread_up();
status("Initializing");
lprintf("Synchronet FTP Server Version %s%s"
,FTP_VERSION
#ifdef _DEBUG
," Debug"
#else
,""
#endif
);
#if defined(__BORLANDC__)
sprintf(compiler,"BCC %X.%02X"
,__BORLANDC__>>8
,__BORLANDC__&0xff);
#elif defined(_MSC_VER)
sprintf(compiler,"MSC %u", _MSC_VER);
#else
strcpy(compiler,"UNKNOWN COMPILER");