void
env_opt_add(unsigned char *ep)
{
unsigned char *vp, c;
if (opt_reply == NULL) /*XXX*/
return; /*XXX*/
if (ep == NULL || *ep == '\0') {
/* Send user defined variables first. */
env_default(1, 0);
while ((ep = env_default(0, 0)))
env_opt_add(ep);
/* Now add the list of well know variables. */
env_default(1, 1);
while ((ep = env_default(0, 1)))
env_opt_add(ep);
return;
}
vp = env_getvalue(ep);
if (opt_replyp + (vp ? 2 * strlen((char *)vp) : 0) +
2 * strlen((char *)ep) + 6 > opt_replyend)
{
int len;
opt_replyend += OPT_REPLY_SIZE;
len = opt_replyend - opt_reply;
opt_reply = (unsigned char *)realloc(opt_reply, len);
if (opt_reply == NULL) {
/*@*/ printf("env_opt_add: realloc() failed!!!\n");
opt_reply = opt_replyp = opt_replyend = NULL;
return;
}
opt_replyp = opt_reply + len - (opt_replyend - opt_replyp);
opt_replyend = opt_reply + len;
}
if (opt_welldefined(ep))
#ifdef OLD_ENVIRON
if (telopt_environ == TELOPT_OLD_ENVIRON)
*opt_replyp++ = old_env_var;
else
#endif
*opt_replyp++ = NEW_ENV_VAR;
else
*opt_replyp++ = ENV_USERVAR;
for (;;) {
while ((c = *ep++)) {
if (opt_replyp + (2 + 2) > opt_replyend)
return;
switch(c&0xff) {
case IAC:
*opt_replyp++ = IAC;
break;
case NEW_ENV_VAR:
case NEW_ENV_VALUE:
case ENV_ESC:
case ENV_USERVAR:
*opt_replyp++ = ENV_ESC;
break;
}
*opt_replyp++ = c;
}
if ((ep = vp)) {
if (opt_replyp + (1 + 2 + 2) > opt_replyend)
return;
#ifdef OLD_ENVIRON
if (telopt_environ == TELOPT_OLD_ENVIRON)
*opt_replyp++ = old_env_value;
else
#endif
*opt_replyp++ = NEW_ENV_VALUE;
vp = NULL;
} else
break;
}
}
void
env_opt_add(char *ep)
{
char *vp, c;
if (opt_reply == NULL) /*XXX*/
return; /*XXX*/
if (ep == NULL || *ep == '\0') {
/* Send user defined variables first. */
env_default(1, 0);
while ((ep = env_default(0, 0)))
env_opt_add(ep);
/* Now add the list of well know variables. */
env_default(1, 1);
while ((ep = env_default(0, 1)))
env_opt_add(ep);
return;
}
vp = env_getvalue(ep, 1);
if (2 * (vp ? strlen(vp) : 0) + 2 * strlen(ep) + 6 >
opt_replyend - opt_replyp)
{
size_t len;
unsigned char *p;
len = opt_replyend - opt_reply;
len += OPT_REPLY_SIZE + 2 * strlen(ep);
if (vp)
len += 2 * strlen(vp);
p = realloc(opt_reply, len);
if (p == NULL) {
free(opt_reply);
/*@*/ printf("env_opt_add: realloc() failed!!!\n");
opt_reply = opt_replyp = opt_replyend = NULL;
return;
}
opt_replyp = p + (opt_replyp - opt_reply);
opt_replyend = p + len;
opt_reply = p;
}
if (opt_welldefined(ep))
opt_add(NEW_ENV_VAR);
else
opt_add(ENV_USERVAR);
for (;;) {
while ((c = *ep++)) {
switch(c&0xff) {
case IAC:
opt_add(IAC);
break;
case NEW_ENV_VAR:
case NEW_ENV_VALUE:
case ENV_ESC:
case ENV_USERVAR:
opt_add(ENV_ESC);
break;
}
opt_add(c);
}
if ((ep = vp)) {
opt_add(NEW_ENV_VALUE);
vp = NULL;
} else
break;
}
}