FpExecV

Execute process

Declaration

Source position: unix.pp line 112

  function FpExecV(const PathName: RawByteString; args: ppchar) : cint;

Description

FpExecV replaces the currently running program with the program, specified in PathName. It gives the program the options in args. This is a pointer to an array of pointers to null-terminated strings. The last pointer in this array should be nil. The current environment is passed to the program. On success, FpExecV does not return.

Errors

Extended error information is returned by the FpGetErrno function:

sys_eacces
File is not a regular file, or has no execute permission. A component of the path has no search permission.
sys_eperm
The file system is mounted noexec.
sys_e2big
Argument list too big.
sys_enoexec
The magic number in the file is incorrect.
sys_enoent
The file does not exist.
sys_enomem
Not enough memory for kernel.
sys_enotdir
A component of the path is not a directory.
sys_eloop
The path contains a circular reference (via symlinks).

See also

Name Description
FpExecl Execute process (using argument list, environment)
FpExecle Execute process (using argument list, environment)
FpExeclp Execute process (using argument list, environment; search path)
FpExecvp Execute process, search path
FpExecve Execute process using environment
FpFork Create child process

Example

Program Example8;
{ Program to demonstrate the Execv function. }
Uses Unix, strings;
Const Arg0 : PChar = '/bin/ls';
      Arg1 : Pchar = '-l';
Var PP : PPchar;
begin
  GetMem (PP,3*SizeOf(Pchar));
  PP[0]:=Arg0;
  PP[1]:=Arg1;
  PP[3]:=Nil;
  { Execute '/bin/ls -l', with current environment }
  fpExecv ('/bin/ls',pp);
end.