argv[0] of shell script interpreter

[KO Myung-Hun]

Hi/2.

argv[0] should be a program itself. However, if spawn() a shell script, the script name is passed to a shell. So the shell using argv[0] misbehave.

I attach test programs. If you run spawn_arg.exe, then you can confirm argv[0] is a shell script not a shell.

[KO Myung-Hun]

sample programs

[KO Myung-Hun]

patch for argv[0] problem

[bird]

Thanks for the testcase. Don't know where I got the weird ideas for that list of parameter to the interpreter from... Anyway, r3930 does a better job, though I suspect it shouldn't really do an _realrealpath on the script name.