view lib-src/leditcfns.c @ 4646:6c6bfdb80a0c

Prevent integer overflow and subsequent crashes when attempting to load large images. See <870180fe0907011540m7509f371h97d336477145166a@mail.gmail.com> in xemacs-patches.
author Jerry James <james@xemacs.org>
date Wed, 01 Jul 2009 16:42:11 -0600
parents 376386a54a3c
children
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/* Synched up with: FSF 19.28. */

#include <sgtty.h>
#include <signal.h>
#define STRLEN 100
static char str[STRLEN+1] = "%?emacs"; /* extra char for the null */

switch_to_proc(){
    char *ptr = str;
    while (*ptr) ioctl(0, TIOCSTI, ptr++);
    ioctl(0, TIOCSTI, "\n");
    kill(getpid(), SIGTSTP);
    }

set_proc_str(ptr) char *ptr; {
    if (strlen(ptr) <= STRLEN)
	strcpy(str, ptr);
    else
	printf("string too long for set-proc-str: %s\n", ptr);
    }