Re: problema con READ

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#9815

From: Angel Suarez Rivero
Date: Mon, 06 May 2002 18:45

38 lines
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cddd wrote:
> 
> cuando hago un:
> ------------------
> char *buffer;
> 
> buffer=(char *)malloc(sizeof(char) *TAMANYO)
> -------------------
> 
> y luego un:
> --------------------
> a=read(fd, buffer,sizeof(buffer));
> --------------------
> 
> a me devuelve -1 y no lee del fichero
> �debo poner "read(fd,buffer,sizeof(buffer)*TAMANYO)"?
> (el open del fichero (fd),  no me da problemas )
> 
> Mi intencion es leer de un fichero un bloque del tama�o que yo quiera y
> colocarlo en el buffer;

Quiz�s sea por usar malloc. Creo que esta funci�n no asigna el tama�o
real a la variable asta que no se llene del todo. Int�ntalo con:
calloc(sizeof(char), TAMANYO);

Saludos

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From: Angel Suarez Rivero <srangel@teleline.es>
Newsgroups: es.comp.os.linux.programacion
Subject: Re: problema con READ
Date: Mon, 06 May 2002 19:45:52 +0100
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