{ $Id$ This file is part of the Free Pascal run time library. Copyright (c) 1999-2000 by Michael Van Canneyt, BSD parts (c) 2000 by Marco van de Voort members of the Free Pascal development team. See the file COPYING.FPC, included in this distribution, for details about the copyright. 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. **********************************************************************} Unit Unix; Interface { Get Types and Constants } {$i sysconst.inc} {$i systypes.inc} { Get System call numbers and error-numbers} {$i sysnr.inc} {$i errno.inc} {$I signal.inc} var ErrNo, LinuxError : Longint; {******************** Process ********************} const { For getting/setting priority } Prio_Process = 0; Prio_PGrp = 1; Prio_User = 2; {$ifdef Solaris} WNOHANG = $100; WUNTRACED = $4; {$ELSE} WNOHANG = $1; WUNTRACED = $2; __WCLONE = $80000000; {$ENDIF} {******************** File ********************} Const P_IN = 1; P_OUT = 2; Const LOCK_SH = 1; LOCK_EX = 2; LOCK_UN = 8; LOCK_NB = 4; Type Tpipe = array[1..2] of longint; pglob = ^tglob; tglob = record name : pchar; next : pglob; end; ComStr = String[255]; PathStr = String[255]; DirStr = String[255]; NameStr = String[255]; ExtStr = String[255]; const { For testing access rights } R_OK = 4; W_OK = 2; X_OK = 1; F_OK = 0; { For File control mechanism } F_GetFd = 1; F_SetFd = 2; F_GetFl = 3; F_SetFl = 4; {$ifdef Solaris} F_DupFd = 0; F_Dup2Fd = 9; F_GetOwn = 23; F_SetOwn = 24; F_GetLk = 14; F_SetLk = 6; F_SetLkW = 7; F_FreeSp = 11; {$else} F_GetLk = 5; F_SetLk = 6; F_SetLkW = 7; F_SetOwn = 8; F_GetOwn = 9; {$endif} {******************** IOCtl(TermIOS) ********************} {Is too freebsd/Linux specific} {$I termios.inc} {******************** Info ********************} Type UTimBuf = packed record{in BSD array[0..1] of timeval, but this is backwards compatible with linux version} actime, {$ifdef BSD} uactime, {BSD Micro seconds} {$endif} modtime {$ifdef BSD} , umodtime {BSD Micro seconds} {$endif} : longint; end; UTimeBuf=UTimBuf; TUTimeBuf=UTimeBuf; PUTimeBuf=^UTimeBuf; TSysinfo = packed record uptime : longint; loads : array[1..3] of longint; totalram, freeram, sharedram, bufferram, totalswap, freeswap : longint; procs : integer; s : string[18]; end; PSysInfo = ^TSysInfo; {****************************************************************************** Procedure/Functions ******************************************************************************} {$ifdef bsd} function Do_SysCall(sysnr:longint):longint; //function Do_Syscall(sysnr,param1:integer):longint; function Do_SysCall(sysnr,param1:LONGINT):longint; function Do_SysCall(sysnr,param1,param2:LONGINT):longint; function Do_SysCall(sysnr,param1,param2,param3:LONGINT):longint; function Do_SysCall(sysnr,param1,param2,param3,param4:LONGINT):longint; function Do_SysCall(sysnr,param1,param2,param3,param4,param5:LONGINT):longint; function Do_SysCall(sysnr,param1,param2,param3,param4,param5,param6:LONGINT):int64; function Do_SysCall(sysnr,param1,param2,param3,param4,param5,param6,param7:LONGINT):int64; {$else} Function SysCall(callnr:longint;var regs:SysCallregs):longint; {$endif} {************************** Time/Date Handling ***************************} var tzdaylight : boolean; tzseconds : longint; tzname : array[boolean] of pchar; { timezone support } procedure GetLocalTimezone(timer:longint;var leap_correct,leap_hit:longint); procedure GetLocalTimezone(timer:longint); procedure ReadTimezoneFile(fn:string); function GetTimezoneFile:string; Procedure GetTimeOfDay(var tv:timeval); Function GetTimeOfDay:longint; Function GetEpochTime: longint; Procedure EpochToLocal(epoch:longint;var year,month,day,hour,minute,second:Word); Function LocalToEpoch(year,month,day,hour,minute,second:Word):Longint; procedure GetTime(var hour,min,sec,msec,usec:word); procedure GetTime(var hour,min,sec,sec100:word); procedure GetTime(var hour,min,sec:word); Procedure GetDate(Var Year,Month,Day:Word); Procedure GetDateTime(Var Year,Month,Day,hour,minute,second:Word); function SetTime(Hour,Min,Sec:word) : Boolean; function SetDate(Year,Month,Day:Word) : Boolean; function SetDateTime(Year,Month,Day,hour,minute,second:Word) : Boolean; {************************** Process Handling ***************************} function CreateShellArgV(const prog:string):ppchar; function CreateShellArgV(const prog:Ansistring):ppchar; Procedure Execve(Path: pathstr;args:ppchar;ep:ppchar); Procedure Execve(Path: AnsiString;args:ppchar;ep:ppchar); Procedure Execve(path: pchar;args:ppchar;ep:ppchar); Procedure Execv(const path:pathstr;args:ppchar); Procedure Execv(const path: AnsiString;args:ppchar); Procedure Execvp(Path: Pathstr;Args:ppchar;Ep:ppchar); Procedure Execvp(Path: AnsiString; Args:ppchar;Ep:ppchar); Procedure Execl(const Todo: String); Procedure Execl(const Todo: Ansistring); Procedure Execle(Todo: String;Ep:ppchar); Procedure Execle(Todo: AnsiString;Ep:ppchar); Procedure Execlp(Todo: string;Ep:ppchar); Procedure Execlp(Todo: Ansistring;Ep:ppchar); Function Shell(const Command:String):Longint; Function Shell(const Command:AnsiString):Longint; Function Fork:longint; {Clone for FreeBSD is copied from the LinuxThread port, and rfork based} function Clone(func:TCloneFunc;sp:pointer;flags:longint;args:pointer):longint; Procedure ExitProcess(val:longint); Function WaitPid(Pid:longint;Status:pointer;Options:Longint):Longint; {=>PID (Status Valid), 0 (No Status), -1: Error, special case errno=EINTR } Function WaitProcess(Pid:longint):Longint; { like WaitPid(PID,@result,0) Handling of Signal interrupts (errno=EINTR), returning the Exitcode of Process (>=0) or -Status if terminated} Procedure Nice(N:integer); function WEXITSTATUS(Status: Integer): Integer; function WTERMSIG(Status: Integer): Integer; function WSTOPSIG(Status: Integer): Integer; Function WIFEXITED(Status: Integer): Boolean; Function WIFSTOPPED(Status: Integer): Boolean; Function WIFSIGNALED(Status: Integer): Boolean; Function W_EXITCODE(ReturnCode, Signal: Integer): Integer; Function W_STOPCODE(Signal: Integer): Integer; {$ifdef bsd} Function GetPriority(Which,Who:longint):longint; procedure SetPriority(Which,Who,What:longint); {$else} Function GetPriority(Which,Who:Integer):integer; Procedure SetPriority(Which:Integer;Who:Integer;What:Integer); {$endif} Function GetPid:LongInt; Function GetPPid:LongInt; Function GetUid:Longint; Function GetEUid:Longint; Function GetGid:Longint; Function GetEGid:Longint; {************************** File Handling ***************************} Function fdOpen(pathname:string;flags:longint):longint; Function fdOpen(pathname:string;flags,mode:longint):longint; Function fdOpen(pathname:pchar;flags:longint):longint; Function fdOpen(pathname:pchar;flags,mode:longint):longint; Function fdClose(fd:longint):boolean; Function fdRead(fd:longint;var buf;size:longint):longint; Function fdWrite(fd:longint;const buf;size:longint):longint; Function fdTruncate(fd,size:longint):boolean; Function fdSeek (fd,pos,seektype :longint): longint; Function fdFlush (fd : Longint) : Boolean; Function Link(OldPath,NewPath:pathstr):boolean; Function SymLink(OldPath,NewPath:pathstr):boolean; Function ReadLink(name,linkname:pchar;maxlen:longint):longint; Function ReadLink(name:pathstr):pathstr; Function UnLink(Path:pathstr):boolean; Function UnLink(Path:pchar):Boolean; Function FReName (OldName,NewName : Pchar) : Boolean; Function FReName (OldName,NewName : String) : Boolean; Function Chown(path:pathstr;NewUid,NewGid:longint):boolean; Function Chmod(path:pathstr;Newmode:longint):boolean; Function Utime(path:pathstr;utim:utimebuf):boolean; {$ifdef BSD} Function Access(Path:Pathstr ;mode:longint):boolean; {$else} Function Access(Path:Pathstr ;mode:integer):boolean; {$endif} Function Umask(Mask:Integer):integer; Function Flock (fd,mode : longint) : boolean; Function Flock (var T : text;mode : longint) : boolean; Function Flock (var F : File;mode : longint) : boolean; Function FStat(Path:Pathstr;Var Info:stat):Boolean; Function FStat(Fd:longint;Var Info:stat):Boolean; Function FStat(var F:Text;Var Info:stat):Boolean; Function FStat(var F:File;Var Info:stat):Boolean; Function Lstat(Filename: PathStr;var Info:stat):Boolean; Function StatFS(Path:Pathstr;Var Info:tstatfs):Boolean; Function StatFS(Fd: Longint;Var Info:tstatfs):Boolean; Function Fcntl(Fd:longint;Cmd:longint):longint; Procedure Fcntl(Fd:longint;Cmd:longint;Arg:Longint); Function Fcntl(var Fd:Text;Cmd:longint):longint; Procedure Fcntl(var Fd:Text;Cmd:longint;Arg:Longint); Function Dup(oldfile:longint;var newfile:longint):Boolean; Function Dup(var oldfile,newfile:text):Boolean; Function Dup(var oldfile,newfile:file):Boolean; Function Dup2(oldfile,newfile:longint):Boolean; Function Dup2(var oldfile,newfile:text):Boolean; Function Dup2(var oldfile,newfile:file):Boolean; Function Select(N:longint;readfds,writefds,exceptfds:PFDSet;TimeOut:PTimeVal):longint; Function Select(N:longint;readfds,writefds,exceptfds:PFDSet;TimeOut:Longint):longint; Function SelectText(var T:Text;TimeOut :PTimeVal):Longint; Function SelectText(var T:Text;TimeOut :Longint):Longint; {************************** Directory Handling ***************************} Function OpenDir(f:pchar):pdir; Function OpenDir(f: String):pdir; function CloseDir(p:pdir):integer; Function ReadDir(p:pdir):pdirent; procedure SeekDir(p:pdir;off:longint); function TellDir(p:pdir):longint; {************************** Pipe/Fifo/Stream ***************************} Function AssignPipe(var pipe_in,pipe_out:longint):boolean; Function AssignPipe(var pipe_in,pipe_out:text):boolean; Function AssignPipe(var pipe_in,pipe_out:file):boolean; Function PClose(Var F:text) : longint; Function PClose(Var F:file) : longint; Procedure POpen(var F:text;const Prog:String;rw:char); Procedure POpen(var F:file;const Prog:String;rw:char); Function mkFifo(pathname:string;mode:longint):boolean; function AssignStream(Var StreamIn,Streamout:text;Const Prog:String) : longint; function AssignStream(var StreamIn, StreamOut, StreamErr: Text; const prog: String): LongInt; {************************** General information ***************************} Function GetEnv(P:string):Pchar; {$ifndef BSD} Function GetDomainName:String; Function GetHostName:String; Function Sysinfo(var Info:TSysinfo):Boolean; Function Uname(var unamerec:utsname):Boolean; {$endif} {************************** Signal ***************************} Procedure SigAction(Signum:longint;Act,OldAct:PSigActionRec ); Procedure SigProcMask (How:longint;SSet,OldSSet:PSigSet); Function SigPending:SigSet; Procedure SigSuspend(Mask:Sigset); Function Signal(Signum:longint;Handler:SignalHandler):SignalHandler; Function Kill(Pid:longint;Sig:longint):integer; Procedure SigRaise(Sig:integer); {$ifndef BSD} Function Alarm(Sec : Longint) : longint; Procedure Pause; {$endif} Function NanoSleep(const req : timespec;var rem : timespec) : longint; {************************** IOCtl/Termios Functions ***************************} Function IOCtl(Handle,Ndx: Longint;Data: Pointer):boolean; Function TCGetAttr(fd:longint;var tios:TermIOS):boolean; Function TCSetAttr(fd:longint;OptAct:longint;const tios:TermIOS):boolean; Procedure CFSetISpeed(var tios:TermIOS;speed:Cardinal); Procedure CFSetOSpeed(var tios:TermIOS;speed:Cardinal); Procedure CFMakeRaw(var tios:TermIOS); Function TCSendBreak(fd,duration:longint):boolean; Function TCSetPGrp(fd,id:longint):boolean; Function TCGetPGrp(fd:longint;var id:longint):boolean; Function TCFlush(fd,qsel:longint):boolean; Function TCDrain(fd:longint):boolean; Function TCFlow(fd,act:longint):boolean; Function IsATTY(Handle:Longint):Boolean; Function IsATTY(f:text):Boolean; function TTYname(Handle:Longint):string; function TTYname(var F:Text):string; {************************** Memory functions ***************************} const PROT_READ = $1; { page can be read } PROT_WRITE = $2; { page can be written } PROT_EXEC = $4; { page can be executed } PROT_NONE = $0; { page can not be accessed } MAP_SHARED = $1; { Share changes } // MAP_PRIVATE = $2; { Changes are private } MAP_TYPE = $f; { Mask for type of mapping } MAP_FIXED = $10; { Interpret addr exactly } // MAP_ANONYMOUS = $20; { don't use a file } MAP_GROWSDOWN = $100; { stack-like segment } MAP_DENYWRITE = $800; { ETXTBSY } MAP_EXECUTABLE = $1000; { mark it as an executable } MAP_LOCKED = $2000; { pages are locked } MAP_NORESERVE = $4000; { don't check for reservations } type tmmapargs=record address : longint; size : longint; prot : longint; flags : longint; fd : longint; offset : longint; end; function MMap(const m:tmmapargs):longint; function MUnMap (P : Pointer; Size : Longint) : Boolean; {************************** Port IO functions ***************************} Function IOperm (From,Num : Cardinal; Value : Longint) : boolean; {$ifndef BSD} Function IoPL(Level : longint) : Boolean; {$endif} {$ifdef i386} Procedure WritePort (Port : Longint; Value : Byte); Procedure WritePort (Port : Longint; Value : Word); Procedure WritePort (Port : Longint; Value : Longint); Procedure WritePortB (Port : Longint; Value : Byte); Procedure WritePortW (Port : Longint; Value : Word); Procedure WritePortL (Port : Longint; Value : Longint); Procedure WritePortL (Port : Longint; Var Buf; Count: longint); Procedure WritePortW (Port : Longint; Var Buf; Count: longint); Procedure WritePortB (Port : Longint; Var Buf; Count: longint); Procedure ReadPort (Port : Longint; Var Value : Byte); Procedure ReadPort (Port : Longint; Var Value : Word); Procedure ReadPort (Port : Longint; Var Value : Longint); function ReadPortB (Port : Longint): Byte; function ReadPortW (Port : Longint): Word; function ReadPortL (Port : Longint): LongInt; Procedure ReadPortL (Port : Longint; Var Buf; Count: longint); Procedure ReadPortW (Port : Longint; Var Buf; Count: longint); Procedure ReadPortB (Port : Longint; Var Buf; Count: longint); {$endif} {************************** Utility functions ***************************} Function Octal(l:longint):longint; Function FExpand(Const Path: PathStr):PathStr; Function FSearch(const path:pathstr;dirlist:string):pathstr; Procedure FSplit(const Path:PathStr;Var Dir:DirStr;Var Name:NameStr;Var Ext:ExtStr); Function Dirname(Const path:pathstr):pathstr; Function Basename(Const path:pathstr;Const suf:pathstr):pathstr; Function FNMatch(const Pattern,Name:string):Boolean; Function Glob(Const path:pathstr):pglob; Procedure Globfree(var p:pglob); Function StringToPPChar(Var S:String):ppchar; Function StringToPPChar(Var S:AnsiString):ppchar; Function StringToPPChar(S : Pchar):ppchar; Function GetFS(var T:Text):longint; Function GetFS(Var F:File):longint; {Filedescriptorsets} Procedure FD_Zero(var fds:fdSet); Procedure FD_Clr(fd:longint;var fds:fdSet); Procedure FD_Set(fd:longint;var fds:fdSet); Function FD_IsSet(fd:longint;var fds:fdSet):boolean; {Stat.Mode Types} Function S_ISLNK(m:word):boolean; Function S_ISREG(m:word):boolean; Function S_ISDIR(m:word):boolean; Function S_ISCHR(m:word):boolean; Function S_ISBLK(m:word):boolean; Function S_ISFIFO(m:word):boolean; Function S_ISSOCK(m:word):boolean; {****************************************************************************** Implementation ******************************************************************************} Implementation Uses Strings; { Get the definitions of textrec and filerec } {$i textrec.inc} {$i filerec.inc} { Raw System calls are in Syscalls.inc} {$i syscalls.inc} {$i unixsysc.inc} {Syscalls only used in unit Unix/Linux} {****************************************************************************** Process related calls ******************************************************************************} { Most calls of WaitPID do not handle the result correctly, this funktion treats errors more correctly } Function WaitProcess(Pid:longint):Longint; { like WaitPid(PID,@result,0) Handling of Signal interrupts (errno=EINTR), returning the Exitcode of Process (>=0) or -Status if terminated} var r,s : LongInt; begin repeat s:=$7F00; r:=WaitPid(Pid,@s,0); until (r<>-1) or (LinuxError<>ESysEINTR); if (r=-1) or (r=0) then // 0 is not a valid return and should never occur (it means status invalid when using WNOHANG) WaitProcess:=-1 // return -1 to indicate an error else begin {$ifndef Solaris} { at least correct for Linux and Darwin (JM) } if (s and $7F)=0 then // Only this is a valid returncode {$else} if (s and $FF)=0 then // Only this is a valid returncode {$endif} WaitProcess:=s shr 8 else if (s>0) then // Until now there is not use of the highest bit , but check this for the future WaitProcess:=-s // normal case else WaitProcess:=s; // s<0 should not occur, but wie return also a negativ value end; end; function InternalCreateShellArgV(cmd:pChar; len:longint):ppchar; { Create an argv which executes a command in a shell using /bin/sh -c } const Shell = '/bin/sh'#0'-c'#0; var pp,p : ppchar; // temp : string; !! Never pass a local var back!! begin getmem(pp,4*4); p:=pp; p^:=@Shell[1]; inc(p); p^:=@Shell[9]; inc(p); getmem(p^,len+1); move(cmd^,p^^,len); pchar(p^)[len]:=#0; inc(p); p^:=Nil; InternalCreateShellArgV:=pp; end; function CreateShellArgV(const prog:string):ppchar; begin CreateShellArgV:=InternalCreateShellArgV(@prog[1],length(prog)); end; function CreateShellArgV(const prog:Ansistring):ppchar; { Create an argv which executes a command in a shell using /bin/sh -c using a AnsiString; } begin CreateShellArgV:=InternalCreateShellArgV(@prog[1],length(prog)); // if ppc works like delphi this also work when @prog[1] is invalid (len=0) end; procedure FreeShellArgV(p:ppchar); begin if (p<>nil) then begin freemem(p[2]); freemem(p); end; end; Procedure Execve(Path: AnsiString;args:ppchar;ep:ppchar); { overloaded ansistring version. } begin ExecVE(PChar(Path),args,ep); end; Procedure Execv(const path: AnsiString;args:ppchar); { Overloaded ansistring version. } begin ExecVe(Path,Args,envp) end; Procedure Execvp(Path: AnsiString; Args:ppchar;Ep:ppchar); { Overloaded ansistring version } var thepath : Ansistring; begin if path[1]<>'/' then begin Thepath:=strpas(getenv('PATH')); if thepath='' then thepath:='.'; Path:=FSearch(path,thepath) end else Path:=''; if Path='' then linuxerror:=ESysEnoent else Execve(Path,args,ep);{On error linuxerror will get set there} end; Procedure Execv(const path:pathstr;args:ppchar); { Replaces the current program by the program specified in path, arguments in args are passed to Execve. the current environment is passed on. } begin Execve(path,args,envp); {On error linuxerror will get set there} end; Procedure Execvp(Path:Pathstr;Args:ppchar;Ep:ppchar); { This does the same as Execve, only it searches the PATH environment for the place of the Executable, except when Path starts with a slash. if the PATH environment variable is unavailable, the path is set to '.' } var thepath : string; begin if path[1]<>'/' then begin Thepath:=strpas(getenv('PATH')); if thepath='' then thepath:='.'; Path:=FSearch(path,thepath) end else Path:=''; if Path='' then linuxerror:=ESysEnoent else Execve(Path,args,ep);{On error linuxerror will get set there} end; Procedure Execle(Todo:string;Ep:ppchar); { This procedure takes the string 'Todo', parses it for command and command options, and Executes the command with the given options. The string 'Todo' shoud be of the form 'command options', options separated by commas. the PATH environment is not searched for 'command'. The specified environment(in 'ep') is passed on to command } var p : ppchar; begin p:=StringToPPChar(ToDo); if (p=nil) or (p^=nil) then exit; ExecVE(p^,p,EP); end; Procedure Execle(Todo:AnsiString;Ep:ppchar); { This procedure takes the string 'Todo', parses it for command and command options, and Executes the command with the given options. The string 'Todo' shoud be of the form 'command options', options separated by commas. the PATH environment is not searched for 'command'. The specified environment(in 'ep') is passed on to command } var p : ppchar; begin p:=StringToPPChar(ToDo); if (p=nil) or (p^=nil) then exit; ExecVE(p^,p,EP); end; Procedure Execl(const Todo:string); { This procedure takes the string 'Todo', parses it for command and command options, and Executes the command with the given options. The string 'Todo' shoud be of the form 'command options', options separated by commas. the PATH environment is not searched for 'command'. The current environment is passed on to command } begin ExecLE(ToDo,EnvP); end; Procedure Execlp(Todo:string;Ep:ppchar); { This procedure takes the string 'Todo', parses it for command and command options, and Executes the command with the given options. The string 'Todo' shoud be of the form 'command options', options separated by commas. the PATH environment is searched for 'command'. The specified environment (in 'ep') is passed on to command } var p : ppchar; begin p:=StringToPPchar(todo); if (p=nil) or (p^=nil) then exit; ExecVP(StrPas(p^),p,EP); end; Procedure Execlp(Todo: Ansistring;Ep:ppchar); { Overloaded ansistring version. } var p : ppchar; begin p:=StringToPPchar(todo); if (p=nil) or (p^=nil) then exit; ExecVP(StrPas(p^),p,EP); end; Function Shell(const Command:String):Longint; { Executes the shell, and passes it the string Command. (Through /bin/sh -c) The current environment is passed to the shell. It waits for the shell to exit, and returns its exit status. If the Exec call failed exit status 127 is reported. } { Changed the structure: - the previous version returns an undefinied value if fork fails - it returns the status of Waitpid instead of the Process returnvalue (see the doc to Shell) - it uses exit(127) not ExitProc (The Result in pp386: going on Compiling in 2 processes!) - ShellArgs are now released - The Old CreateShellArg gives back pointers to a local var } var p : ppchar; pid : longint; begin p:=CreateShellArgv(command); pid:=fork; if pid=0 then // We are in the Child begin {This is the child.} Execve(p^,p,envp); ExitProcess(127); // was Exit(127) end else if (pid<>-1) then // Successfull started Shell:=WaitProcess(pid) {Linuxerror is set there} else // no success Shell:=-1; // indicate an error FreeShellArgV(p); end; Function Shell(const Command:AnsiString):Longint; { AnsiString version of Shell } var p : ppchar; pid : longint; begin { Changes as above } p:=CreateShellArgv(command); pid:=fork; if pid=0 then // We are in the Child begin Execve(p^,p,envp); ExitProcess(127); // was exit(127)!! We must exit the Process, not the function end else if (pid<>-1) then // Successfull started Shell:=WaitProcess(pid) {Linuxerror is set there} else // no success Shell:=-1; FreeShellArgV(p); end; function WEXITSTATUS(Status: Integer): Integer; begin WEXITSTATUS:=(Status and $FF00) shr 8; end; function WTERMSIG(Status: Integer): Integer; begin WTERMSIG:=(Status and $7F); end; function WSTOPSIG(Status: Integer): Integer; begin WSTOPSIG:=WEXITSTATUS(Status); end; Function WIFEXITED(Status: Integer): Boolean; begin WIFEXITED:=(WTERMSIG(Status)=0); end; Function WIFSTOPPED(Status: Integer): Boolean; begin WIFSTOPPED:=((Status and $FF)=$7F); end; Function WIFSIGNALED(Status: Integer): Boolean; begin WIFSIGNALED:=(not WIFSTOPPED(Status)) and (not WIFEXITED(Status)); end; Function W_EXITCODE(ReturnCode, Signal: Integer): Integer; begin W_EXITCODE:=(ReturnCode shl 8) or Signal; end; Function W_STOPCODE(Signal: Integer): Integer; begin W_STOPCODE:=(Signal shl 8) or $7F; end; {****************************************************************************** Date and Time related calls ******************************************************************************} Const {Date Translation} C1970=2440588; D0 = 1461; D1 = 146097; D2 =1721119; Function GregorianToJulian(Year,Month,Day:Longint):LongInt; Var Century,XYear: LongInt; Begin If Month<=2 Then Begin Dec(Year); Inc(Month,12); End; Dec(Month,3); Century:=(longint(Year Div 100)*D1) shr 2; XYear:=(longint(Year Mod 100)*D0) shr 2; GregorianToJulian:=((((Month*153)+2) div 5)+Day)+D2+XYear+Century; End; Procedure JulianToGregorian(JulianDN:LongInt;Var Year,Month,Day:Word); Var YYear,XYear,Temp,TempMonth : LongInt; Begin Temp:=((JulianDN-D2) shl 2)-1; JulianDN:=Temp Div D1; XYear:=(Temp Mod D1) or 3; YYear:=(XYear Div D0); Temp:=((((XYear mod D0)+4) shr 2)*5)-3; Day:=((Temp Mod 153)+5) Div 5; TempMonth:=Temp Div 153; If TempMonth>=10 Then Begin inc(YYear); dec(TempMonth,12); End; inc(TempMonth,3); Month := TempMonth; Year:=YYear+(JulianDN*100); end; Function GetEpochTime: longint; { Get the number of seconds since 00:00, January 1 1970, GMT the time NOT corrected any way } begin GetEpochTime:=GetTimeOfDay; end; Procedure EpochToLocal(epoch:longint;var year,month,day,hour,minute,second:Word); { Transforms Epoch time into local time (hour, minute,seconds) } Var DateNum: LongInt; Begin inc(Epoch,TZSeconds); Datenum:=(Epoch Div 86400) + c1970; JulianToGregorian(DateNum,Year,Month,day); Epoch:=Abs(Epoch Mod 86400); Hour:=Epoch Div 3600; Epoch:=Epoch Mod 3600; Minute:=Epoch Div 60; Second:=Epoch Mod 60; End; Function LocalToEpoch(year,month,day,hour,minute,second:Word):Longint; { Transforms local time (year,month,day,hour,minutes,second) to Epoch time (seconds since 00:00, january 1 1970, corrected for local time zone) } Begin LocalToEpoch:=((GregorianToJulian(Year,Month,Day)-c1970)*86400)+ (LongInt(Hour)*3600)+(Minute*60)+Second-TZSeconds; End; procedure GetTime(var hour,min,sec,msec,usec:word); { Gets the current time, adjusted to local time } var year,day,month:Word; t : timeval; begin gettimeofday(t); EpochToLocal(t.sec,year,month,day,hour,min,sec); msec:=t.usec div 1000; usec:=t.usec mod 1000; end; procedure GetTime(var hour,min,sec,sec100:word); { Gets the current time, adjusted to local time } var usec : word; begin gettime(hour,min,sec,sec100,usec); sec100:=sec100 div 10; end; Procedure GetTime(Var Hour,Min,Sec:Word); { Gets the current time, adjusted to local time } var msec,usec : Word; Begin gettime(hour,min,sec,msec,usec); End; Procedure GetDate(Var Year,Month,Day:Word); { Gets the current date, adjusted to local time } var hour,minute,second : word; Begin EpochToLocal(GetTimeOfDay,year,month,day,hour,minute,second); End; Procedure GetDateTime(Var Year,Month,Day,hour,minute,second:Word); { Gets the current date, adjusted to local time } Begin EpochToLocal(GetTimeOfDay,year,month,day,hour,minute,second); End; {$ifndef BSD} {$ifdef linux} Function stime (t : longint) : Boolean; var sr : Syscallregs; begin sr.reg2:=longint(@t); SysCall(Syscall_nr_stime,sr); linuxerror:=errno; stime:=linuxerror=0; end; {$endif} {$endif} {$ifdef BSD} Function stime (t : longint) : Boolean; begin end; {$endif} Function SetTime(Hour,Min,Sec:word) : boolean; var Year, Month, Day : Word; begin GetDate (Year, Month, Day); SetTime:=stime ( LocalToEpoch ( Year, Month, Day, Hour, Min, Sec ) ); end; Function SetDate(Year,Month,Day:Word) : boolean; var Hour, Minute, Second, Sec100 : Word; begin GetTime ( Hour, Minute, Second, Sec100 ); SetDate:=stime ( LocalToEpoch ( Year, Month, Day, Hour, Minute, Second ) ); end; Function SetDateTime(Year,Month,Day,hour,minute,second:Word) : Boolean; begin SetDateTime:=stime ( LocalToEpoch ( Year, Month, Day, Hour, Minute, Second ) ); end; { Include timezone handling routines which use /usr/share/timezone info } {$i timezone.inc} {****************************************************************************** FileSystem calls ******************************************************************************} Function fdOpen(pathname:string;flags:longint):longint; begin pathname:=pathname+#0; fdOpen:=Sys_Open(@pathname[1],flags,438); LinuxError:=Errno; end; Function fdOpen(pathname:string;flags,mode:longint):longint; begin pathname:=pathname+#0; fdOpen:=Sys_Open(@pathname[1],flags,mode); LinuxError:=Errno; end; Procedure Execl(const Todo:Ansistring); { Overloaded AnsiString Version of ExecL. } begin ExecLE(ToDo,EnvP); end; Function fdOpen(pathname:pchar;flags:longint):longint; begin fdOpen:=Sys_Open(pathname,flags,0); LinuxError:=Errno; end; Function fdOpen(pathname:pchar;flags,mode:longint):longint; begin fdOpen:=Sys_Open(pathname,flags,mode); LinuxError:=Errno; end; Function fdClose(fd:longint):boolean; begin fdClose:=(Sys_Close(fd)=0); LinuxError:=Errno; end; Function fdRead(fd:longint;var buf;size:longint):longint; begin fdRead:=Sys_Read(fd,pchar(@buf),size); LinuxError:=Errno; end; Function fdWrite(fd:longint;const buf;size:longint):longint; begin fdWrite:=Sys_Write(fd,pchar(@buf),size); LinuxError:=Errno; end; Function fdSeek (fd,pos,seektype :longint): longint; { Do a Seek on a file descriptor fd to position pos, starting from seektype } begin fdseek:=Sys_LSeek (fd,pos,seektype); LinuxError:=Errno; end; {$ifdef BSD} Function Fcntl(Fd:longint;Cmd:longint):longint; { Read or manipulate a file.(See also fcntl (2) ) Possible values for Cmd are : F_GetFd,F_GetFl,F_GetOwn Errors are reported in Linuxerror; If Cmd is different from the allowed values, linuxerror=ESysEninval. } begin if (cmd in [F_GetFd,F_GetFl,F_GetOwn]) then begin Linuxerror:=sys_fcntl(fd,cmd,0); if linuxerror=-1 then begin linuxerror:=errno; fcntl:=0; end else begin fcntl:=linuxerror; linuxerror:=0; end; end else begin linuxerror:=ESysEinval; Fcntl:=0; end; end; Procedure Fcntl(Fd:longint;Cmd:longint;Arg:Longint); { Read or manipulate a file. (See also fcntl (2) ) Possible values for Cmd are : F_setFd,F_SetFl,F_GetLk,F_SetLk,F_SetLkW,F_SetOwn; Errors are reported in Linuxerror; If Cmd is different from the allowed values, linuxerror=ESysEninval. F_DupFD is not allowed, due to the structure of Files in Pascal. } begin if (cmd in [F_SetFd,F_SetFl,F_GetLk,F_SetLk,F_SetLkw,F_SetOwn]) then begin sys_fcntl(fd,cmd,arg); LinuxError:=ErrNo; end else linuxerror:=ESysEinval; end; {$endif} Function Fcntl(var Fd:Text;Cmd:longint):longint; begin Fcntl := Fcntl(textrec(Fd).handle, Cmd); end; Procedure Fcntl(var Fd:Text;Cmd,Arg:Longint); begin Fcntl(textrec(Fd).handle, Cmd, Arg); end; Function Flock (var T : text;mode : longint) : boolean; begin Flock:=Flock(TextRec(T).Handle,mode); end; Function Flock (var F : File;mode : longint) : boolean; begin Flock:=Flock(FileRec(F).Handle,mode); end; Function FStat(Path:Pathstr;Var Info:stat):Boolean; { Get all information on a file, and return it in Info. } begin path:=path+#0; FStat:=(Sys_stat(@(path[1]),Info)=0); LinuxError:=errno; end; Function FStat(var F:Text;Var Info:stat):Boolean; { Get all information on a text file, and return it in info. } begin FStat:=Fstat(TextRec(F).Handle,INfo); end; Function FStat(var F:File;Var Info:stat):Boolean; { Get all information on a untyped file, and return it in info. } begin FStat:=Fstat(FileRec(F).Handle,Info); end; Function SymLink(OldPath,newPath:pathstr):boolean; { Proceduces a soft link from new to old. } begin oldpath:=oldpath+#0; newpath:=newpath+#0; Symlink:=Sys_symlink(pchar(@(oldpath[1])),pchar(@(newpath[1])))=0; linuxerror:=errno; end; Function ReadLink(name,linkname:pchar;maxlen:longint):longint; { Read a link (where it points to) } begin Readlink:=Sys_readlink(Name,LinkName,maxlen); linuxerror:=errno; end; Function ReadLink(Name:pathstr):pathstr; { Read a link (where it points to) } var LinkName : pathstr; i : longint; begin Name:=Name+#0; i:=ReadLink(@Name[1],@LinkName[1],high(linkname)); if i>0 then begin linkname[0]:=chr(i); ReadLink:=LinkName; end else ReadLink:=''; end; Function UnLink(Path:pathstr):boolean; { Removes the file in 'Path' (that is, it decreases the link count with one. if the link count is zero, the file is removed from the disk. } begin path:=path+#0; Unlink:=Sys_unlink(pchar(@(path[1])))=0; linuxerror:=errno; end; Function UnLink(Path:pchar):Boolean; { Removes the file in 'Path' (that is, it decreases the link count with one. if the link count is zero, the file is removed from the disk. } begin Unlink:=(Sys_unlink(path)=0); linuxerror:=errno; end; Function FRename (OldName,NewName : Pchar) : Boolean; begin FRename:=Sys_rename(OldName,NewName)=0; LinuxError:=Errno; end; Function FRename (OldName,NewName : String) : Boolean; begin OldName:=OldName+#0; NewName:=NewName+#0; FRename:=FRename (@OldName[1],@NewName[1]); end; Function Dup(var oldfile,newfile:text):Boolean; { Copies the filedescriptor oldfile to newfile, after flushing the buffer of oldfile. After which the two textfiles are, in effect, the same, except that they don't share the same buffer, and don't share the same close_on_exit flag. } begin flush(oldfile);{ We cannot share buffers, so we flush them. } textrec(newfile):=textrec(oldfile); textrec(newfile).bufptr:=@(textrec(newfile).buffer);{ No shared buffer. } Dup:=Dup(textrec(oldfile).handle,textrec(newfile).handle); end; Function Dup(var oldfile,newfile:file):Boolean; { Copies the filedescriptor oldfile to newfile } begin filerec(newfile):=filerec(oldfile); Dup:=Dup(filerec(oldfile).handle,filerec(newfile).handle); end; Function Dup2(var oldfile,newfile:text):Boolean; { Copies the filedescriptor oldfile to newfile, after flushing the buffer of oldfile. It closes newfile if it was still open. After which the two textfiles are, in effect, the same, except that they don't share the same buffer, and don't share the same close_on_exit flag. } var tmphandle : word; begin case TextRec(oldfile).mode of fmOutput, fmInOut, fmAppend : flush(oldfile);{ We cannot share buffers, so we flush them. } end; case TextRec(newfile).mode of fmOutput, fmInOut, fmAppend : flush(newfile); end; tmphandle:=textrec(newfile).handle; textrec(newfile):=textrec(oldfile); textrec(newfile).handle:=tmphandle; textrec(newfile).bufptr:=@(textrec(newfile).buffer);{ No shared buffer. } Dup2:=Dup2(textrec(oldfile).handle,textrec(newfile).handle); end; Function Dup2(var oldfile,newfile:file):Boolean; { Copies the filedescriptor oldfile to newfile } begin filerec(newfile):=filerec(oldfile); Dup2:=Dup2(filerec(oldfile).handle,filerec(newfile).handle); end; Function Select(N:longint;readfds,writefds,exceptfds:PFDSet;TimeOut:Longint):longint; { Select checks whether the file descriptor sets in readfs/writefs/exceptfs have changed. This function allows specification of a timeout as a longint. } var p : PTimeVal; tv : TimeVal; begin if TimeOut=-1 then p:=nil else begin tv.Sec:=Timeout div 1000; tv.Usec:=(Timeout mod 1000)*1000; p:=@tv; end; Select:=Select(N,Readfds,WriteFds,ExceptFds,p); end; Function SelectText(var T:Text;TimeOut :PTimeval):Longint; Var F:FDSet; begin if textrec(t).mode=fmclosed then begin LinuxError:=ESysEBADF; exit(-1); end; FD_Zero(f); FD_Set(textrec(T).handle,f); if textrec(T).mode=fminput then SelectText:=select(textrec(T).handle+1,@f,nil,nil,TimeOut) else SelectText:=select(textrec(T).handle+1,nil,@f,nil,TimeOut); end; Function SelectText(var T:Text;TimeOut :Longint):Longint; var p : PTimeVal; tv : TimeVal; begin if TimeOut=-1 then p:=nil else begin tv.Sec:=Timeout div 1000; tv.Usec:=(Timeout mod 1000)*1000; p:=@tv; end; SelectText:=SelectText(T,p); end; {****************************************************************************** Directory ******************************************************************************} Function OpenDir(F:String):PDir; begin F:=F+#0; OpenDir:=OpenDir(@F[1]); LinuxError:=ErrNo; end; procedure SeekDir(p:pdir;off:longint); begin if p=nil then begin errno:=ESysEBADF; exit; end; {$ifndef bsd} p^.nextoff:=Sys_lseek(p^.fd,off,seek_set); {$endif} p^.size:=0; p^.loc:=0; end; function TellDir(p:pdir):longint; begin if p=nil then begin errno:=ESysEBADF; telldir:=-1; exit; end; telldir:=Sys_lseek(p^.fd,0,seek_cur) { We could try to use the nextoff field here, but on my 1.2.13 kernel, this gives nothing... This may have to do with the readdir implementation of libc... I also didn't find any trace of the field in the kernel code itself, So I suspect it is an artifact of libc. Michael. } end; Function ReadDir(P:pdir):pdirent; begin ReadDir:=Sys_ReadDir(p); LinuxError:=Errno; end; {****************************************************************************** Pipes/Fifo ******************************************************************************} Procedure OpenPipe(var F:Text); begin case textrec(f).mode of fmoutput : if textrec(f).userdata[1]<>P_OUT then textrec(f).mode:=fmclosed; fminput : if textrec(f).userdata[1]<>P_IN then textrec(f).mode:=fmclosed; else textrec(f).mode:=fmclosed; end; end; Procedure IOPipe(var F:text); begin case textrec(f).mode of fmoutput : begin { first check if we need something to write, else we may get a SigPipe when Close() is called (PFV) } if textrec(f).bufpos>0 then Sys_write(textrec(f).handle,pchar(textrec(f).bufptr),textrec(f).bufpos); end; fminput : textrec(f).bufend:=Sys_read(textrec(f).handle,pchar(textrec(f).bufptr),textrec(f).bufsize); end; textrec(f).bufpos:=0; end; Procedure FlushPipe(var F:Text); begin if (textrec(f).mode=fmoutput) and (textrec(f).bufpos<>0) then IOPipe(f); textrec(f).bufpos:=0; end; Procedure ClosePipe(var F:text); begin textrec(f).mode:=fmclosed; Sys_close(textrec(f).handle); end; Function AssignPipe(var pipe_in,pipe_out:text):boolean; { Sets up a pair of file variables, which act as a pipe. The first one can be read from, the second one can be written to. If the operation was unsuccesful, linuxerror is set. } var f_in,f_out : longint; begin if not AssignPipe(f_in,f_out) then begin AssignPipe:=false; exit; end; { Set up input } Assign(Pipe_in,''); Textrec(Pipe_in).Handle:=f_in; Textrec(Pipe_in).Mode:=fmInput; Textrec(Pipe_in).userdata[1]:=P_IN; TextRec(Pipe_in).OpenFunc:=@OpenPipe; TextRec(Pipe_in).InOutFunc:=@IOPipe; TextRec(Pipe_in).FlushFunc:=@FlushPipe; TextRec(Pipe_in).CloseFunc:=@ClosePipe; { Set up output } Assign(Pipe_out,''); Textrec(Pipe_out).Handle:=f_out; Textrec(Pipe_out).Mode:=fmOutput; Textrec(Pipe_out).userdata[1]:=P_OUT; TextRec(Pipe_out).OpenFunc:=@OpenPipe; TextRec(Pipe_out).InOutFunc:=@IOPipe; TextRec(Pipe_out).FlushFunc:=@FlushPipe; TextRec(Pipe_out).CloseFunc:=@ClosePipe; AssignPipe:=true; end; Function AssignPipe(var pipe_in,pipe_out:file):boolean; { Sets up a pair of file variables, which act as a pipe. The first one can be read from, the second one can be written to. If the operation was unsuccesful, linuxerror is set. } var f_in,f_out : longint; begin if not AssignPipe(f_in,f_out) then begin AssignPipe:=false; exit; end; { Set up input } Assign(Pipe_in,''); Filerec(Pipe_in).Handle:=f_in; Filerec(Pipe_in).Mode:=fmInput; Filerec(Pipe_in).recsize:=1; Filerec(Pipe_in).userdata[1]:=P_IN; { Set up output } Assign(Pipe_out,''); Filerec(Pipe_out).Handle:=f_out; Filerec(Pipe_out).Mode:=fmoutput; Filerec(Pipe_out).recsize:=1; Filerec(Pipe_out).userdata[1]:=P_OUT; AssignPipe:=true; end; Procedure PCloseText(Var F:text); { May not use @PClose due overloading } begin PClose(f); end; Procedure POpen(var F:text;const Prog:String;rw:char); { Starts the program in 'Prog' and makes it's input or out put the other end of a pipe. If rw is 'w' or 'W', then whatever is written to F, will be read from stdin by the program in 'Prog'. The inverse is true for 'r' or 'R' : whatever the program in 'Prog' writes to stdout, can be read from 'f'. } var pipi, pipo : text; pid : longint; pl : ^longint; pp : ppchar; begin LinuxError:=0; rw:=upcase(rw); if not (rw in ['R','W']) then begin LinuxError:=ESysEnoent; exit; end; AssignPipe(pipi,pipo); if Linuxerror<>0 then exit; pid:=fork; if linuxerror<>0 then begin close(pipi); close(pipo); exit; end; if pid=0 then begin { We're in the child } if rw='W' then begin close(pipo); dup2(pipi,input); close(pipi); if linuxerror<>0 then halt(127); end else begin close(pipi); dup2(pipo,output); close(pipo); if linuxerror<>0 then halt(127); end; pp:=createshellargv(prog); Execve(pp^,pp,envp); halt(127); end else begin { We're in the parent } if rw='W' then begin close(pipi); f:=pipo; textrec(f).bufptr:=@textrec(f).buffer; end else begin close(pipo); f:=pipi; textrec(f).bufptr:=@textrec(f).buffer; end; {Save the process ID - needed when closing } pl:=@(textrec(f).userdata[2]); pl^:=pid; textrec(f).closefunc:=@PCloseText; end; end; Procedure POpen(var F:file;const Prog:String;rw:char); { Starts the program in 'Prog' and makes it's input or out put the other end of a pipe. If rw is 'w' or 'W', then whatever is written to F, will be read from stdin by the program in 'Prog'. The inverse is true for 'r' or 'R' : whatever the program in 'Prog' writes to stdout, can be read from 'f'. } var pipi, pipo : file; pid : longint; pl : ^longint; p,pp : ppchar; temp : string[255]; begin LinuxError:=0; rw:=upcase(rw); if not (rw in ['R','W']) then begin LinuxError:=ESysEnoent; exit; end; AssignPipe(pipi,pipo); if Linuxerror<>0 then exit; pid:=fork; if linuxerror<>0 then begin close(pipi); close(pipo); exit; end; if pid=0 then begin { We're in the child } if rw='W' then begin close(pipo); dup2(filerec(pipi).handle,stdinputhandle); close(pipi); if linuxerror<>0 then halt(127); end else begin close(pipi); dup2(filerec(pipo).handle,stdoutputhandle); close(pipo); if linuxerror<>0 then halt(127); end; getmem(pp,sizeof(pchar)*4); temp:='/bin/sh'#0'-c'#0+prog+#0; p:=pp; p^:=@temp[1]; inc(p); p^:=@temp[9]; inc(p); p^:=@temp[12]; inc(p); p^:=Nil; Execve('/bin/sh',pp,envp); halt(127); end else begin { We're in the parent } if rw='W' then begin close(pipi); f:=pipo; end else begin close(pipo); f:=pipi; end; {Save the process ID - needed when closing } pl:=@(filerec(f).userdata[2]); pl^:=pid; end; end; Function AssignStream(Var StreamIn,Streamout:text;Const Prog:String) : longint; { Starts the program in 'Prog' and makes its input and output the other end of two pipes, which are the stdin and stdout of a program specified in 'Prog'. streamout can be used to write to the program, streamin can be used to read the output of the program. See the following diagram : Parent Child STreamout --> Input Streamin <-- Output Return value is the process ID of the process being spawned, or -1 in case of failure. } var pipi, pipo : text; pid : longint; pl : ^Longint; begin LinuxError:=0; AssignStream:=-1; AssignPipe(streamin,pipo); if Linuxerror<>0 then exit; AssignPipe(pipi,streamout); if Linuxerror<>0 then exit; pid:=fork; if linuxerror<>0 then begin close(pipi); close(pipo); close (streamin); close (streamout); exit; end; if pid=0 then begin { We're in the child } { Close what we don't need } close(streamout); close(streamin); dup2(pipi,input); if linuxerror<>0 then halt(127); close(pipi); dup2(pipo,output); if linuxerror<>0 then halt (127); close(pipo); Execl(Prog); halt(127); end else begin { we're in the parent} close(pipo); close(pipi); {Save the process ID - needed when closing } pl:=@(textrec(StreamIn).userdata[2]); pl^:=pid; textrec(StreamIn).closefunc:=@PCloseText; {Save the process ID - needed when closing } pl:=@(textrec(StreamOut).userdata[2]); pl^:=pid; textrec(StreamOut).closefunc:=@PCloseText; AssignStream:=Pid; end; end; function AssignStream(var StreamIn, StreamOut, StreamErr: Text; const prog: String): LongInt; { Starts the program in 'prog' and makes its input, output and error output the other end of three pipes, which are the stdin, stdout and stderr of a program specified in 'prog'. StreamOut can be used to write to the program, StreamIn can be used to read the output of the program, StreamErr reads the error output of the program. See the following diagram : Parent Child StreamOut --> StdIn (input) StreamIn <-- StdOut (output) StreamErr <-- StdErr (error output) } var PipeIn, PipeOut, PipeErr: text; pid: LongInt; pl: ^LongInt; begin LinuxError := 0; AssignStream := -1; // Assign pipes AssignPipe(StreamIn, PipeOut); if LinuxError <> 0 then exit; AssignPipe(StreamErr, PipeErr); if LinuxError <> 0 then begin Close(StreamIn); Close(PipeOut); exit; end; AssignPipe(PipeIn, StreamOut); if LinuxError <> 0 then begin Close(StreamIn); Close(PipeOut); Close(StreamErr); Close(PipeErr); exit; end; // Fork pid := Fork; if LinuxError <> 0 then begin Close(StreamIn); Close(PipeOut); Close(StreamErr); Close(PipeErr); Close(PipeIn); Close(StreamOut); exit; end; if pid = 0 then begin // *** We are in the child *** // Close what we don not need Close(StreamOut); Close(StreamIn); Close(StreamErr); // Connect pipes dup2(PipeIn, Input); if LinuxError <> 0 then Halt(127); Close(PipeIn); dup2(PipeOut, Output); if LinuxError <> 0 then Halt(127); Close(PipeOut); dup2(PipeErr, StdErr); if LinuxError <> 0 then Halt(127); Close(PipeErr); // Execute program Execl(Prog); Halt(127); end else begin // *** We are in the parent *** Close(PipeErr); Close(PipeOut); Close(PipeIn); // Save the process ID - needed when closing pl := @(TextRec(StreamIn).userdata[2]); pl^ := pid; TextRec(StreamIn).closefunc := @PCloseText; // Save the process ID - needed when closing pl := @(TextRec(StreamOut).userdata[2]); pl^ := pid; TextRec(StreamOut).closefunc := @PCloseText; // Save the process ID - needed when closing pl := @(TextRec(StreamErr).userdata[2]); pl^ := pid; TextRec(StreamErr).closefunc := @PCloseText; AssignStream := pid; end; end; {****************************************************************************** General information calls ******************************************************************************} Function GetEnv(P:string):Pchar; { Searches the environment for a string with name p and returns a pchar to it's value. A pchar is used to accomodate for strings of length > 255 } var ep : ppchar; found : boolean; Begin p:=p+'='; {Else HOST will also find HOSTNAME, etc} ep:=envp; found:=false; if ep<>nil then begin while (not found) and (ep^<>nil) do begin if strlcomp(@p[1],(ep^),length(p))=0 then found:=true else inc(ep); end; end; if found then getenv:=ep^+length(p) else getenv:=nil; end; {$ifndef bsd} Function GetDomainName:String; { Get machines domain name. Returns empty string if not set. } Var Sysn : utsname; begin Uname(Sysn); linuxerror:=errno; If linuxerror<>0 then getdomainname:='' else getdomainname:=strpas(@Sysn.domainname[0]); end; Function GetHostName:String; { Get machines name. Returns empty string if not set. } Var Sysn : utsname; begin uname(Sysn); linuxerror:=errno; If linuxerror<>0 then gethostname:='' else gethostname:=strpas(@Sysn.nodename[0]); end; {$endif} {****************************************************************************** Signal handling calls ******************************************************************************} procedure SigRaise(sig:integer); begin Kill(GetPid,Sig); end; {****************************************************************************** IOCtl and Termios calls ******************************************************************************} Function TCGetAttr(fd:longint;var tios:TermIOS):boolean; begin {$ifndef BSD} TCGetAttr:=IOCtl(fd,TCGETS,@tios); {$else} TCGETAttr:=IoCtl(Fd,TIOCGETA,@tios); {$endif} end; Function TCSetAttr(fd:longint;OptAct:longint;const tios:TermIOS):boolean; var nr:longint; begin {$ifndef BSD} case OptAct of TCSANOW : nr:=TCSETS; TCSADRAIN : nr:=TCSETSW; TCSAFLUSH : nr:=TCSETSF; {$else} case OptAct of TCSANOW : nr:=TIOCSETA; TCSADRAIN : nr:=TIOCSETAW; TCSAFLUSH : nr:=TIOCSETAF; {$endif} else begin ErrNo:=ESysEINVAL; TCSetAttr:=false; exit; end; end; TCSetAttr:=IOCtl(fd,nr,@Tios); end; Procedure CFSetISpeed(var tios:TermIOS;speed:Cardinal); begin {$ifndef BSD} tios.c_cflag:=(tios.c_cflag and (not CBAUD)) or speed; {$else} tios.c_ispeed:=speed; {Probably the Bxxxx speed constants} {$endif} end; Procedure CFSetOSpeed(var tios:TermIOS;speed:Cardinal); begin {$ifndef BSD} CFSetISpeed(tios,speed); {$else} tios.c_ospeed:=speed; {$endif} end; Procedure CFMakeRaw(var tios:TermIOS); begin {$ifndef BSD} with tios do begin c_iflag:=c_iflag and (not (IGNBRK or BRKINT or PARMRK or ISTRIP or INLCR or IGNCR or ICRNL or IXON)); c_oflag:=c_oflag and (not OPOST); c_lflag:=c_lflag and (not (ECHO or ECHONL or ICANON or ISIG or IEXTEN)); c_cflag:=(c_cflag and (not (CSIZE or PARENB))) or CS8; end; {$else} with tios do begin c_iflag:=c_iflag and (not (IMAXBEL or IXOFF or INPCK or BRKINT or PARMRK or ISTRIP or INLCR or IGNCR or ICRNL or IXON or IGNPAR)); c_iflag:=c_iflag OR IGNBRK; c_oflag:=c_oflag and (not OPOST); c_lflag:=c_lflag and (not (ECHO or ECHOE or ECHOK or ECHONL or ICANON or ISIG or IEXTEN or NOFLSH or TOSTOP or PENDIN)); c_cflag:=(c_cflag and (not (CSIZE or PARENB))) or (CS8 OR cread); c_cc[VMIN]:=1; c_cc[VTIME]:=0; end; {$endif} end; Function TCSendBreak(fd,duration:longint):boolean; begin {$ifndef BSD} TCSendBreak:=IOCtl(fd,TCSBRK,pointer(duration)); {$else} TCSendBreak:=IOCtl(fd,TIOCSBRK,0); {$endif} end; Function TCSetPGrp(fd,id:longint):boolean; begin TCSetPGrp:=IOCtl(fd,TIOCSPGRP,pointer(id)); end; Function TCGetPGrp(fd:longint;var id:longint):boolean; begin TCGetPGrp:=IOCtl(fd,TIOCGPGRP,@id); end; Function TCDrain(fd:longint):boolean; begin {$ifndef BSD} TCDrain:=IOCtl(fd,TCSBRK,pointer(1)); {$else} TCDrain:=IOCtl(fd,TIOCDRAIN,0); {Should set timeout to 1 first?} {$endif} end; Function TCFlow(fd,act:longint):boolean; begin {$ifndef BSD} TCFlow:=IOCtl(fd,TCXONC,pointer(act)); {$else} case act OF TCOOFF : TCFlow:=Ioctl(fd,TIOCSTOP,0); TCOOn : TCFlow:=IOctl(Fd,TIOCStart,0); TCIOFF : {N/I} end; {$endif} end; Function TCFlush(fd,qsel:longint):boolean; begin {$ifndef BSD} TCFlush:=IOCtl(fd,TCFLSH,pointer(qsel)); {$else} TCFlush:=IOCtl(fd,TIOCFLUSH,pointer(qsel)); {$endif} end; Function IsATTY(Handle:Longint):Boolean; { Check if the filehandle described by 'handle' is a TTY (Terminal) } var t : Termios; begin IsAtty:=TCGetAttr(Handle,t); end; Function IsATTY(f: text):Boolean; { Idem as previous, only now for text variables. } begin IsATTY:=IsaTTY(textrec(f).handle); end; function TTYName(Handle:Longint):string; { Return the name of the current tty described by handle f. returns empty string in case of an error. } var mydev, myino : longint; st : stat; function mysearch(n:string): boolean; {searches recursively for the device in the directory given by n, returns true if found and sets the name of the device in ttyname} var dirstream : pdir; d : pdirent; name : string; st : stat; begin dirstream:=opendir(n); if (linuxerror<>0) then exit; d:=Readdir(dirstream); while (d<>nil) do begin name:=n+'/'+strpas(@(d^.name)); fstat(name,st); if linuxerror=0 then begin if ((st.mode and $E000)=$4000) and { if it is a directory } (strpas(@(d^.name))<>'.') and { but not ., .. and fd subdirs } (strpas(@(d^.name))<>'..') and (strpas(@(d^.name))<>'') and (strpas(@(d^.name))<>'fd') then begin {we found a directory, search inside it} if mysearch(name) then begin {the device is here} closedir(dirstream); {then don't continue searching} mysearch:=true; exit; end; end else if (d^.ino=myino) and (st.dev=mydev) then begin closedir(dirstream); ttyname:=name; mysearch:=true; exit; end; end; d:=Readdir(dirstream); end; closedir(dirstream); mysearch:=false; end; begin TTYName:=''; fstat(handle,st); if (errno<>0) and isatty (handle) then exit; mydev:=st.dev; myino:=st.ino; mysearch('/dev'); end; function TTYName(var F:Text):string; { Idem as previous, only now for text variables; } begin TTYName:=TTYName(textrec(f).handle); end; {****************************************************************************** Utility calls ******************************************************************************} Function Octal(l:longint):longint; { Convert an octal specified number to decimal; } var octnr, oct : longint; begin octnr:=0; oct:=0; while (l>0) do begin oct:=oct or ((l mod 10) shl octnr); l:=l div 10; inc(octnr,3); end; Octal:=oct; end; Function StringToPPChar(S: PChar):ppchar; var nr : longint; Buf : ^char; p : ppchar; begin buf:=s; nr:=0; while(buf^<>#0) do begin while (buf^ in [' ',#9,#10]) do inc(buf); inc(nr); while not (buf^ in [' ',#0,#9,#10]) do inc(buf); end; getmem(p,nr*4); StringToPPChar:=p; if p=nil then begin LinuxError:=ESysEnomem; exit; end; buf:=s; while (buf^<>#0) do begin while (buf^ in [' ',#9,#10]) do begin buf^:=#0; inc(buf); end; p^:=buf; inc(p); p^:=nil; while not (buf^ in [' ',#0,#9,#10]) do inc(buf); end; end; { function FExpand (const Path: PathStr): PathStr; - declared in fexpand.inc } {$DEFINE FPC_FEXPAND_TILDE} { Tilde is expanded to home } {$DEFINE FPC_FEXPAND_GETENVPCHAR} { GetEnv result is a PChar } {$I fexpand.inc} {$UNDEF FPC_FEXPAND_GETENVPCHAR} {$UNDEF FPC_FEXPAND_TILDE} Function FSearch(const path:pathstr;dirlist:string):pathstr; { Searches for a file 'path' in the list of direcories in 'dirlist'. returns an empty string if not found. Wildcards are NOT allowed. If dirlist is empty, it is set to '.' } Var NewDir : PathStr; p1 : Longint; Info : Stat; Begin {Replace ':' with ';'} for p1:=1to length(dirlist) do if dirlist[p1]=':' then dirlist[p1]:=';'; {Check for WildCards} If (Pos('?',Path) <> 0) or (Pos('*',Path) <> 0) Then FSearch:='' {No wildcards allowed in these things.} Else Begin Dirlist:='.;'+dirlist;{Make sure current dir is first to be searched.} Repeat p1:=Pos(';',DirList); If p1=0 Then p1:=255; NewDir:=Copy(DirList,1,P1 - 1); if NewDir[Length(NewDir)]<>'/' then NewDir:=NewDir+'/'; NewDir:=NewDir+Path; Delete(DirList,1,p1); if FStat(NewDir,Info) then Begin If Pos('./',NewDir)=1 Then Delete(NewDir,1,2); {DOS strips off an initial .\} End Else NewDir:=''; Until (DirList='') or (Length(NewDir) > 0); FSearch:=NewDir; End; End; Procedure FSplit(const Path:PathStr;Var Dir:DirStr;Var Name:NameStr;Var Ext:ExtStr); Var DotPos,SlashPos,i : longint; Begin SlashPos:=0; DotPos:=256; i:=Length(Path); While (i>0) and (SlashPos=0) Do Begin If (DotPos=256) and (Path[i]='.') Then begin DotPos:=i; end; If (Path[i]='/') Then SlashPos:=i; Dec(i); End; Ext:=Copy(Path,DotPos,255); Dir:=Copy(Path,1,SlashPos); Name:=Copy(Path,SlashPos + 1,DotPos - SlashPos - 1); End; Function Dirname(Const path:pathstr):pathstr; { This function returns the directory part of a complete path. Unless the directory is root '/', The last character is not a slash. } var Dir : PathStr; Name : NameStr; Ext : ExtStr; begin FSplit(Path,Dir,Name,Ext); if length(Dir)>1 then Delete(Dir,length(Dir),1); DirName:=Dir; end; Function StringToPPChar(Var S:String):ppchar; { Create a PPChar to structure of pchars which are the arguments specified in the string S. Especially usefull for creating an ArgV for Exec-calls Note that the string S is destroyed by this call. } begin S:=S+#0; StringToPPChar:=StringToPPChar(@S[1]); end; Function StringToPPChar(Var S:AnsiString):ppchar; { Create a PPChar to structure of pchars which are the arguments specified in the string S. Especially usefull for creating an ArgV for Exec-calls } begin StringToPPChar:=StringToPPChar(PChar(S)); end; Function Basename(Const path:pathstr;Const suf:pathstr):pathstr; { This function returns the filename part of a complete path. If suf is supplied, it is cut off the filename. } var Dir : PathStr; Name : NameStr; Ext : ExtStr; begin FSplit(Path,Dir,Name,Ext); if Suf<>Ext then Name:=Name+Ext; BaseName:=Name; end; Function FNMatch(const Pattern,Name:string):Boolean; Var LenPat,LenName : longint; Function DoFNMatch(i,j:longint):Boolean; Var Found : boolean; Begin Found:=true; While Found and (i<=LenPat) Do Begin Case Pattern[i] of '?' : Found:=(j<=LenName); '*' : Begin {find the next character in pattern, different of ? and *} while Found and (ipattern[i]) do inc (j); if (j=LenName); end else j:=LenName;{we can stop} end; else {not a wildcard character in pattern} Found:=(j<=LenName) and (pattern[i]=name[j]); end; inc(i); inc(j); end; DoFnMatch:=Found and (j>LenName); end; Begin {start FNMatch} LenPat:=Length(Pattern); LenName:=Length(Name); FNMatch:=DoFNMatch(1,1); End; Procedure Globfree(var p : pglob); { Release memory occupied by pglob structure, and names in it. sets p to nil. } var temp : pglob; begin while assigned(p) do begin temp:=p^.next; if assigned(p^.name) then freemem(p^.name); dispose(p); p:=temp; end; end; Function Glob(Const path:pathstr):pglob; { Fills a tglob structure with entries matching path, and returns a pointer to it. Returns nil on error, linuxerror is set accordingly. } var temp, temp2 : string[255]; thedir : pdir; buffer : pdirent; root, current : pglob; begin { Get directory } temp:=dirname(path); if temp='' then temp:='.'; temp:=temp+#0; thedir:=opendir(@temp[1]); if thedir=nil then begin glob:=nil; linuxerror:=errno; exit; end; temp:=basename(path,''); { get the pattern } if thedir^.fd<0 then begin linuxerror:=errno; glob:=nil; exit; end; {get the entries} root:=nil; current:=nil; repeat buffer:=Sys_readdir(thedir); if buffer=nil then break; temp2:=strpas(@(buffer^.name[0])); if fnmatch(temp,temp2) then begin if root=nil then begin new(root); current:=root; end else begin new(current^.next); current:=current^.next; end; if current=nil then begin linuxerror:=ESysENOMEM; globfree(root); break; end; current^.next:=nil; getmem(current^.name,length(temp2)+1); if current^.name=nil then begin linuxerror:=ESysENOMEM; globfree(root); break; end; move(buffer^.name[0],current^.name^,length(temp2)+1); end; until false; closedir(thedir); glob:=root; end; {-------------------------------- FiledescriptorSets --------------------------------} Procedure FD_Zero(var fds:fdSet); { Clear the set of filedescriptors } begin FillChar(fds,sizeof(fdSet),0); end; Procedure FD_Clr(fd:longint;var fds:fdSet); { Remove fd from the set of filedescriptors } begin fds[fd shr 5]:=fds[fd shr 5] and (not (1 shl (fd and 31))); end; Procedure FD_Set(fd:longint;var fds:fdSet); { Add fd to the set of filedescriptors } begin fds[fd shr 5]:=fds[fd shr 5] or (1 shl (fd and 31)); end; Function FD_IsSet(fd:longint;var fds:fdSet):boolean; { Test if fd is part of the set of filedescriptors } begin FD_IsSet:=((fds[fd shr 5] and (1 shl (fd and 31)))<>0); end; Function GetFS (var T:Text):longint; { Get File Descriptor of a text file. } begin if textrec(t).mode=fmclosed then exit(-1) else GETFS:=textrec(t).Handle end; Function GetFS(Var F:File):longint; { Get File Descriptor of an unTyped file. } begin { Handle and mode are on the same place in textrec and filerec. } if filerec(f).mode=fmclosed then exit(-1) else GETFS:=filerec(f).Handle end; {-------------------------------- Stat.Mode Macro's --------------------------------} Function S_ISLNK(m:word):boolean; { Check mode field of inode for link. } begin S_ISLNK:=(m and STAT_IFMT)=STAT_IFLNK; end; Function S_ISREG(m:word):boolean; { Check mode field of inode for regular file. } begin S_ISREG:=(m and STAT_IFMT)=STAT_IFREG; end; Function S_ISDIR(m:word):boolean; { Check mode field of inode for directory. } begin S_ISDIR:=(m and STAT_IFMT)=STAT_IFDIR; end; Function S_ISCHR(m:word):boolean; { Check mode field of inode for character device. } begin S_ISCHR:=(m and STAT_IFMT)=STAT_IFCHR; end; Function S_ISBLK(m:word):boolean; { Check mode field of inode for block device. } begin S_ISBLK:=(m and STAT_IFMT)=STAT_IFBLK; end; Function S_ISFIFO(m:word):boolean; { Check mode field of inode for named pipe (FIFO). } begin S_ISFIFO:=(m and STAT_IFMT)=STAT_IFIFO; end; Function S_ISSOCK(m:word):boolean; { Check mode field of inode for socket. } begin S_ISSOCK:=(m and STAT_IFMT)=STAT_IFSOCK; end; {-------------------------------- Memory functions --------------------------------} {$IFDEF I386} Procedure WritePort (Port : Longint; Value : Byte); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movb value,%al outb %al,%dx end ['EAX','EDX']; end; Procedure WritePort (Port : Longint; Value : Word); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movw value,%ax outw %ax,%dx end ['EAX','EDX']; end; Procedure WritePort (Port : Longint; Value : Longint); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movl value,%eax outl %eax,%dx end ['EAX','EDX']; end; Procedure WritePortB (Port : Longint; Value : Byte); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movb value,%al outb %al,%dx end ['EAX','EDX']; end; Procedure WritePortW (Port : Longint; Value : Word); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movw value,%ax outw %ax,%dx end ['EAX','EDX']; end; Procedure WritePortL (Port : Longint; Value : Longint); { Writes 'Value' to port 'Port' } begin asm movl port,%edx movl value,%eax outl %eax,%dx end ['EAX','EDX']; end; Procedure WritePortl (Port : Longint; Var Buf; Count: longint); { Writes 'Count' longints from 'Buf' to Port } begin asm movl count,%ecx movl buf,%esi movl port,%edx cld rep outsl end ['ECX','ESI','EDX']; end; Procedure WritePortW (Port : Longint; Var Buf; Count: longint); { Writes 'Count' words from 'Buf' to Port } begin asm movl count,%ecx movl buf,%esi movl port,%edx cld rep outsw end ['ECX','ESI','EDX']; end; Procedure WritePortB (Port : Longint; Var Buf; Count: longint); { Writes 'Count' bytes from 'Buf' to Port } begin asm movl count,%ecx movl buf,%esi movl port,%edx cld rep outsb end ['ECX','ESI','EDX']; end; Procedure ReadPort (Port : Longint; Var Value : Byte); { Reads 'Value' from port 'Port' } begin asm movl port,%edx inb %dx,%al movl value,%edx movb %al,(%edx) end ['EAX','EDX']; end; Procedure ReadPort (Port : Longint; Var Value : Word); { Reads 'Value' from port 'Port' } begin asm movl port,%edx inw %dx,%ax movl value,%edx movw %ax,(%edx) end ['EAX','EDX']; end; Procedure ReadPort (Port : Longint; Var Value : Longint); { Reads 'Value' from port 'Port' } begin asm movl port,%edx inl %dx,%eax movl value,%edx movl %eax,(%edx) end ['EAX','EDX']; end; function ReadPortB (Port : Longint): Byte; assembler; { Reads a byte from port 'Port' } asm xorl %eax,%eax movl port,%edx inb %dx,%al end ['EAX','EDX']; function ReadPortW (Port : Longint): Word; assembler; { Reads a word from port 'Port' } asm xorl %eax,%eax movl port,%edx inw %dx,%ax end ['EAX','EDX']; function ReadPortL (Port : Longint): LongInt; assembler; { Reads a LongInt from port 'Port' } asm movl port,%edx inl %dx,%eax end ['EAX','EDX']; Procedure ReadPortL (Port : Longint; Var Buf; Count: longint); { Reads 'Count' longints from port 'Port' to 'Buf'. } begin asm movl count,%ecx movl buf,%edi movl port,%edx cld rep insl end ['ECX','EDI','EDX']; end; Procedure ReadPortW (Port : Longint; Var Buf; Count: longint); { Reads 'Count' words from port 'Port' to 'Buf'. } begin asm movl count,%ecx movl buf,%edi movl port,%edx cld rep insw end ['ECX','EDI','EDX']; end; Procedure ReadPortB (Port : Longint; Var Buf; Count: longint); { Reads 'Count' bytes from port 'Port' to 'Buf'. } begin asm movl count,%ecx movl buf,%edi movl port,%edx cld rep insb end ['ECX','EDI','EDX']; end; {$ENDIF} Initialization InitLocalTime; finalization DoneLocalTime; End. { $Log$ Revision 1.29 2003-05-30 19:58:40 marco * Getting NetBSD/i386 to compile. Revision 1.28 2003/05/29 19:16:16 marco * fixed a small *BSD gotcha Revision 1.27 2003/05/24 20:39:54 jonas * fixed ExitCode translation in WaitProcess for Linux and Darwin (and probably other BSD's as well) Revision 1.26 2003/03/11 08:27:59 michael * stringtoppchar should use tabs instead of backspace as delimiter Revision 1.25 2002/12/18 16:50:39 marco * Unix RTL generic parts. Linux working, *BSD will follow shortly Revision 1.24 2002/09/07 16:01:28 peter * old logs removed and tabs fixed Revision 1.23 2002/08/06 13:30:46 sg * replaced some Longints with Cardinals, to mach the C headers * updated the termios record Revision 1.22 2002/03/05 20:04:25 michael + Patch from Sebastian for FCNTL call Revision 1.21 2002/01/02 12:22:54 marco * Removed ifdef arround getepoch. }