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make sure argument to open is terminated by a 0-byte

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This commit is contained in:
ceriel 1987-09-08 15:35:34 +00:00
parent 1ce6abf3de
commit 286acd933c
1 changed files with 12 additions and 2 deletions
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14
lang/m2/libm2/PascalIO.mod
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@ -32,12 +32,17 @@ IMPLEMENTATION MODULE PascalIO;
head: Text;
PROCEDURE Reset(VAR InputText: Text; Filename: ARRAY OF CHAR);
VAR i: CARDINAL;
BEGIN
doclose(InputText);
getstruct(InputText);
WITH InputText^ DO
eof := FALSE;
fildes := Unix.open(ADR(Filename), 0);
FOR i := 0 TO HIGH(Filename) DO
buf[i+1] := Filename[i];
END;
buf[HIGH(Filename)+2] := 0C;
fildes := Unix.open(ADR(buf), 0);
IF fildes < 0 THEN
Traps.Message("could not open input file");
HALT;
@ -50,12 +55,17 @@ IMPLEMENTATION MODULE PascalIO;
END Reset;
PROCEDURE Rewrite(VAR OutputText: Text; Filename: ARRAY OF CHAR);
VAR i: CARDINAL;
BEGIN
doclose(OutputText);
getstruct(OutputText);
WITH OutputText^ DO
eof := FALSE;
fildes := Unix.creat(ADR(Filename), 666B);
FOR i := 0 TO HIGH(Filename) DO
buf[i+1] := Filename[i];
END;
buf[HIGH(Filename)+2] := 0C;
fildes := Unix.creat(ADR(buf), 666B);
IF fildes < 0 THEN
Traps.Message("could not open output file");
HALT;