This commit is contained in:
Ingy döt Net 2013-10-27 22:24:23 +00:00
parent 6f050a029e
commit 776bba907c
3887 changed files with 59894 additions and 7280 deletions

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10 GOSUB 40"GET PROGRAM NAME
20 PRINT N$
30 END
40 REMGET PROGRAM NAME
50 GOSUB 100"GET INPUT BUFFER
60 GOSUB 200"REMOVE RUN PREFIX
70 GOSUB 300"REMOVE , SUFFIXES
80 GOSUB 400"TRIM SPACES
90 RETURN
100 REMGET INPUT BUFFER
110 N$ = ""
120 FOR I = 512 TO 767
130 B = PEEK (I) - 128
140 IF B < 32 THEN RETURN
150 N$ = N$ + CHR$ (B)
160 NEXT I
170 RETURN
200 REMREMOVE RUN PREFIX
210 P = 1
220 FOR I = 1 TO 3
230 FOR J = P TO LEN(N$)
240 C$ = MID$ (N$,J,1)
250 P = P + 1
260 IF C$ = " " THEN NEXT J
270 IF C$ = MID$("RUN",I,1) THEN NEXT I:N$ = MID$(N$,P,LEN(N$)-P+1):RETURN
280 PRINT "YOU NEED TO RUN THIS PROGRAM USING THE RUN COMMAND FROM DOS."
290 END
300 REMREMOVE , SUFFIXES
310 L = LEN (N$)
320 FOR I = 1 TO L
330 C$ = MID$ (N$,I,1)
340 IF C$ = "," THEN N$ = LEFT$(N$,I - 1): RETURN
350 NEXT I
360 RETURN
400 REMTRIM SPACES
410 GOSUB 600
500 REMLEFT TRIM SPACES
510 L = LEN(N$) - 1
520 FOR I = L TO 0 STEP -1
530 IF I < 0 THEN RETURN
540 IF LEFT$ (N$,1) <> " " THEN RETURN
550 IF I THEN N$ = RIGHT$ (N$, I)
560 NEXT I
570 N$ = "
580 RETURN
600 REMRIGHT TRIM SPACES
610 L = LEN(N$) - 1
620 FOR I = L TO 0 STEP -1
630 IF I < 0 THEN RETURN
640 IF RIGHT$ (N$,1) <> " " THEN RETURN
650 IF I THEN N$ = LEFT$ (N$, I)
660 NEXT I
670 N$ = "
680 RETURN

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! program run with invalid name path/f
!
!-*- mode: compilation; default-directory: "/tmp/" -*-
!Compilation started at Sun Jun 2 00:18:31
!
!a=./f && make $a && OMP_NUM_THREADS=2 $a < unixdict.txt
!gfortran -std=f2008 -Wall -fopenmp -ffree-form -fall-intrinsics -fimplicit-none f.f08 -o f
!
!Compilation finished at Sun Jun 2 00:18:31
! program run with valid name path/rcname
!
!-*- mode: compilation; default-directory: "/tmp/" -*-
!Compilation started at Sun Jun 2 00:19:01
!
!gfortran -std=f2008 -Wall -fopenmp -ffree-form -fall-intrinsics -fimplicit-none f.f08 -o rcname && ./rcname
! ./rcname approved.
! program continues...
!
!Compilation finished at Sun Jun 2 00:19:02
module sundry
contains
subroutine verify_name(required)
! name verification reduces the ways an attacker can rename rm as cp.
character(len=*), intent(in) :: required
character(len=1024) :: name
integer :: length, status
! I believe get_command_argument is part of the 2003 FORTRAN standard intrinsics.
call get_command_argument(0, name, length, status)
if (0 /= status) stop
if ((len_trim(name)+1) .ne. (index(name, required, back=.true.) + len(required))) stop
write(6,*) trim(name)//' approved.'
end subroutine verify_name
end module sundry
program name
use sundry
call verify_name('rcname')
write(6,*)'program continues...'
end program name

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using System.Environment;
...
def program_name = GetCommandLineArgs()[0];
...

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// rust 0.8
fn main() {
io::println(fmt!("Program: %s", os::args()[0]));
println!("Program: {}", std::os::args()[0]);
}