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sam: report close error

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This commit is contained in:
Russ Cox 2019-12-19 15:00:58 -05:00
parent 0b349f6f34
commit a1ead676e6
3 changed files with 9 additions and 1 deletions
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2
src/cmd/sam/io.c
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@ -166,7 +166,7 @@ writeio(File *f)
void void
closeio(Posn p) closeio(Posn p)
{ {
close(io); Close(io);
io = 0; io = 0;
if(p >= 0) if(p >= 0)
dprint("#%lud\n", p); dprint("#%lud\n", p);

1
src/cmd/sam/sam.h
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@ -237,6 +237,7 @@ int Read(int, void*, int);
void Seek(int, long, int); void Seek(int, long, int);
int plan9(File*, int, String*, int); int plan9(File*, int, String*, int);
int Write(int, void*, int); int Write(int, void*, int);
void Close(int);
int bexecute(File*, Posn); int bexecute(File*, Posn);
void cd(String*); void cd(String*);
void closefiles(File*, String*); void closefiles(File*, String*);

7
src/cmd/sam/sys.c
View file

@ -58,3 +58,10 @@ Seek(int f, long n, int w)
if(seek(f, n, w)==-1) if(seek(f, n, w)==-1)
syserror("seek"); syserror("seek");
} }
void
Close(int f)
{
if(close(f) < 0)
syserror("close");
}