hi ya ralf i would have thought that gcc would barf on b[20]='X' and similarly for theother variable assignments since its not prev allocated/defined.. and yet explicitly assigned (incorrectly??)...
its lot harder to control when the coder does strcpy or readln() without first chcking the length of the variables C-code-checkers http://www.Linux-Sec.net/Audit/#Code have fun linuxing alvin On Thu, 24 Jan 2002, Ralf Dreibrodt wrote: > hi, > > > anyone to offer any > > explanation will be showered with greatness! > > here is an example: > > #include <stdio.h> > > void example() > { > char a[10]; > char b[10]; > strcpy(a, "123456789"); > printf ("a: %s\n", a); > b[20]='X'; > b[21]='Y'; > b[22]='Z'; > printf("a: %s\n", a); > return; > } > main() > { > example(); > } > > debian:/tmp# ./example > a: 123456789 > a: 12345678XYZ¿|ýÿ¿0 > > now imagine you receive the numbers 20, 21 and 22 and letters X, Y and Z > from user input. > > bye > Ralf > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >
