peri mkstemp

[Michalis Kabrianis]

Sorry, alla egw blepw 2 lathi:

On 07-Feb-99 D.A.Glynos wrote:
> re gmt giati to parakatw den douleuei?
> Egrapsa 5-6 grammes kwdika gia na ftiaxnei ena temporary file :
> 
>#include <unistd.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <sys/stat.h>
> 
> main(){
> int fd;
> char *k;
> 
>         k= (char *) malloc(sizeof(k));
>         k="/ergasia/temp/koukouXXXXXX";

Se strings to = den ginetai (se apli C) ap' oti kserw, ara prepei na
xrisimopoiiseis to strcpy. P.x.
strcpy(k,"/ergasia/temp/koukouXXXXXX");

Akoma kalytera, apofeygeis kai to malloc me tin strdup:
strdup(k,"/ergasia/temp/koukouXXXXXX");

>         umask(022);
>         fd=mkstemp(k);
>         write(fd,"patates",sizeof("patates"));

To sizeof("patates") den exei orisma bebaia. Ayto pou theleis einai ena strlen
strlen("patates")+1    Edw nomizw oti xreiazetai kai to +1 gia to NULL, alla den
eimai sigouros. As mas to dieykrinisei kapoios :-)

>         close(fd);
>         printf("%i",fd);
>         free(k);
> }
> 
> Euxaristw ek twn proterwn
> dimitris

Me aytes tis allages mou doulevei. Min ksexaseis na symperilabeis (include) tin
string.h


Michalis Kabrianis
kabrianis at hellug.gr
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