Re: patch to login, dmesg and obscure

Ronny,

> This start to be realy fun soon...  :-)  The litte prog below mimics 
> password_check() behaviour and it sure craches on my machine. Howcome? 
> It shouldn't if you're right.

Its not overflow, its bug ;-))

True is:

int main(void) { 

        const char *old="0123456789"; 

        char *wrapped; 

        int lenwrap; 



        lenwrap = strlen(old); 

        wrapped = malloc(lenwrap * 2 + 1); 

        strcpy(wrapped, old); 



        strncat(wrapped+lenwrap, wrapped, lenwrap); 

        wrapped[lenwrap*2] = 0;
        printf("wrapped: %s\n", wrapped); 



        free(wrapped); 

        return 0; 

}


--w
vodz