Unix Programming - cutting file by fwrite() EOF ?

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cutting file by fwrite() EOF ?

vertigo

2004-09-28, 9:04 am

Hello
I wanted to cut file, so i:

int *data=(int*)malloc(sizeof(int));
data[0]=EOF;
fs

(file,new_size,SEEK_SET);
fwrite((void*)data,sizeof(int),1,file);

but this does not work. Why ? How can i cut file ?

Thanx
Michal

Måns Rullgård

2004-09-28, 9:04 am

vertigo <ax178@wp.pl> writes:

> Hello
> I wanted to cut file, so i:
>
> int *data=(int*)malloc(sizeof(int));
> data[0]=EOF;
> fs

(file,new_size,SEEK_SET);
> fwrite((void*)data,sizeof(int),1,file);
>
> but this does not work. Why ? How can i cut file ?

man truncate
man ftruncate

--
Måns Rullgård
mru@mru.ath.cx

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