Vulnerability Development mailing list archives

Re: problem with C and Gcc 2.95.3


From: Doru Petrescu <pdoru () kappa ro>
Date: Sat, 26 May 2001 13:38:19 +0300 (EEST)

let me undeline FEW 'problems' with your little program ...

1. it is #include ... with a hash '#' ...

2. for (i=0;1<10;i++) will LOOP for EVER ... unless you write it as:
   for (i=0;i<10;i++) ... notice 'i<10' in place of '1<10' ...

3. i can't understand how did it produced this kind of result ...
   since printf("%d", ...) will print NUMBERS, and can't print a series of
dots, like you can see in the output you attached.
   so i guess the original program had %c or %s ... i put my money on %c ... 

anyway this kind of questions are better suited for other kind of email
lists ...
also, a quick DEBUGING should had gave you the answer long time ago ...



Best regards,
Doru Petrescu



On Fri, 25 May 2001, Ale wrote:


I can't run this program:

include <stdio.h>
main () {
char buff[10];
int i;
        for (i=0;i<10;i++){
                buff[i]='.';
        }
        for (i=0;1<10;i++){
                printf("%d",buff[i]);
        }
}                             

The program return:

..........??H????l@t???|????t???H????l(@ 
t????k@x?@A?t???????@l???0.@????????????????   
???(???P???c???????????????????????????????????????????????-???G???\???i???}??????????????????????????????? 
  ??????/???=???K???\???j???u???????????????????????????4 @        ?
 
???????i686./5PWD=/root/prg/myLTDL_LIBRARY_PATH=/root/.kde/lib:/usr/libLC_MESSAGES=itHOSTNAME=localhost.localdomainLD_LIBRARY_PATH=/root/.kde/lib:/usr/libLESSKEY=/etc/.lessLESSOPEN=|/usr/bin/lesspipe.sh
 
%sLANGUAGE=it_IT:itENV=/root/.bashrcPS1=[\u@\h \W]\$ 
KDEDIR=/usrLESS=-MMBROWSER=/usr/bin/netscapeUSER=rootLS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.tar=01;31:*.tgz=01;31:*.tbz2=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.Segmentation
 
fault (core dumped)    

I have compiled this with gcc version 2.95.3        

It's a bug ?




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